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19-3264; Rev 0; 4/04
KIT ATION EVALU E AILABL AV
Positive High-Voltage, Hot-Swap Controller
General Description
The MAX5932 is a fully integrated hot-swap controller for +9V to +80V positive supply rails. The MAX5932 allows for the safe insertion and removal of circuit cards into a live backplane without causing glitches on the backplane power-supply rail. This device is pin and function compatible to LT1641-1. The MAX5932 features a programmable foldback-current limit. If the device remains in current limit for more than a programmable time, the external n-channel MOSFET latches off. Other features include a programmable undervoltage lockout and a programmable output-voltage slew rate through an external n-channel MOSFET. The MAX5932 provides a power-good output (PWRGD) to indicate the status of the output voltage. For a variety of PWRGD/PWRGD, latch/autoretry-fault management, autoretry duty-cycle options, refer to the MAX5933 and MAX5934 data sheets. The MAX5932 operates in the -40C to +85C extended temperature range. This device is available in an 8-pin SO package.
Features
o Pin and Function Compatible with LT1641-1 o Provides Safe Hot Swap for +9V to +80V Power Supplies o Safe Board Insertion and Removal from Live Backplanes o Active-High Power-Good Output (PWRGD) o Programmable Foldback-Current Limiting o High-Side Drive for an External N-Channel MOSFET o Undervoltage Lockout (UVLO) o Overvoltage Protection o Latched Fault Management o User-Programmable Supply Voltage Power-Up Rate
MAX5932
Applications
Hot Board Insertion Electronic Circuit Breaker Industrial High-Side Switch/Circuit Breaker Network Routers and Switches 24V/48V Industrial/Alarm Systems
PART MAX5932ESA
Ordering Information
TEMP RANGE -40C to +85C PIN-PACKAGE 8 SO
Pin Configuration
TOP VIEW
Typical Application Circuit appears at end of data sheet.
ON 1 FB 2
8 7
VCC SENSE GATE TIMER
MAX5932
PWRGD 3 6 5 GND 4
SO
________________________________________________________________ Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim's website at www.maxim-ic.com.
Positive High-Voltage, Hot-Swap Controller MAX5932
ABSOLUTE MAXIMUM RATINGS
(Voltages referenced to GND) VCC .........................................................................-0.3V to +85V SENSE, FB, ON ..........................................-0.3V to (VCC + 0.3V) TIMER, PWRGD......................................................-0.3V to +85V GATE ......................................................................-0.3V to +95V Maximum GATE Current ....................................-50mA, +150mA Maximum Current into Any Other Pin................................50mA Continuous Power Dissipation (TA = +70C) 8-Pin SO (derate 5.9mW/C above +70C)..................470mW Operating Temperature Range ...........................-40C to +85C Maximum Junction Temperature .....................................+150C Storage Temperature Range .............................-60C to +150C ESD Rating (Human Body Model)......................................2000V Lead Temperature (soldering, 10s) .................................+300C
Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(VCC = +24V, GND = 0V, TA = -40C to +85C, unless otherwise noted. Typical values are at TA = +25C.) (Note 1)
PARAMETER Supply Voltage Range Supply Current VCC Undervoltage Lockout VCC Undervoltage Lockout Hysteresis FB High-Voltage Threshold FB Low-Voltage Threshold FB Hysteresis FB Input Bias Current FB Threshold Line Regulation SENSE Trip Voltage (VCC - VSENSE) GATE Pullup Current GATE Pulldown Current External N-Channel Gate Drive TIMER Pullup Current TIMER Pulldown Current ON Logic-High Threshold ON Logic-Low Threshold ON Hysteresis ON Input Bias Current PWRGD Leakage Current PWRGD Output Low Voltage SENSE Input Bias Current Thermal Shutdown Thermal Shutdown Hysteresis SYMBOL VCC ICC VLKO VLKOHYST VFBH VFBL VFBHYST IINFB VFB VSENSETRIP IGATEUP IGATEDN VGATE ITIMERUP ITIMERON VONH VONL VONHYST IINON IOH VOL ISENSE VON = 0V VPWRGD = 80V IO = 2mA IO = 4mA VSENSE = 0V to VCC Temperature rising -1 150 20 -1 VFB = 0V 9V VCC 80V, ON = 0V, TA = 0C to +70C VFB = 0V, TA = 0C to +70C VFB = 1V, TA = 0C to +70C Charge pump on, VGATE = 7V Any fault condition, VGATE = 2V VGATE - VCC VTIMER = 0V VTIMER = 1V ON low-to-high transition ON high-to-low transition VCC = 10.8V to 20V VCC = 20V to 80V 8 39 -5 35 4.5 10 -24 1.5 1.280 1.221 12 47 -10 70 6.2 13.6 -80 3 1.313 1.233 80 +1 10 0.4 2.5 +3 -1 FB low-to-high transition FB high-to-low transition 1.280 1.221 VON = 3V, VCC = 80V VCC low-to-high transition 7.5 CONDITIONS MIN 9 1.4 8.3 0.4 1.313 1.233 80 +1 0.05 17 55 -20 100 18 18 -120 4.5 1.355 1.245 1.345 1.245 TYP MAX 80 3.5 8.8 UNITS V mA V V V V mV A mV/V mV A mA V A A V V mV A A V A C C
2
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Positive High-Voltage, Hot-Swap Controller
ELECTRICAL CHARACTERISTICS (continued)
(VCC = +24V, GND = 0V, TA = -40C to +85C, unless otherwise noted. Typical values are at TA = +25C.) (Note 1)
PARAMETER ON Low-to-GATE Low Propagation Delay ON High-to-GATE High Propagation Delay FB Low-to-PWRGD Low Propagation Delay FB High-to-PWRGD High Propagation Delay (VCC - VSENSE) High-to-GATE Low Propagation Delay SYMBOL tPHLON tPLHON tPHLFB tPLHFB tPHLSENSE CONDITIONS CGATE = 0, Figures 1, 2 CGATE = 0, Figures 1, 2 Figures 1, 3 Figures 1, 3 TA = +25C, CGATE = 0, Figures 1, 4 0.5 MIN TYP 6 1.7 3.2 1.5 2 MAX UNITS s s s s s
MAX5932
Note 1: All currents into the device are positive and all currents out of the device are negative. All voltages are referenced to ground, unless noted otherwise.
_______________________________________________________________________________________
3
Positive High-Voltage, Hot-Swap Controller MAX5932
Test Circuit and Timing Diagrams
ON
VCC 24V
MAX5932
FB SENSE 1.313V ON 5V PWRGD 5k GATE 10nF GATE 5V tPLHON tPHLON 1V 1.233V
GND
TIMER
Figure 1. Test Circuit
Figure 2. ON to GATE Timing
1.313V FB tPLHFB PWRGD 1V
1.233V tPHLFB 1V
VCC - SENSE GATE
47mV tPHLSENSE VCC
Figure 3. FB to PWRGD Timing
Figure 4. SENSE to GATE Timing
4
_______________________________________________________________________________________
Positive High-Voltage, Hot-Swap Controller
Typical Operating Characteristics
(VCC = +48V, TA = +25C, unless otherwise noted.)
FB LOW-VOLTAGE THRESHOLD vs. TEMPERATURE
MAX5932 toc02
MAX5932
ICC vs. VCC
MAX5932 toc01
ICC vs. TEMPERATURE
3.0 2.5 2.0 ICC (mA) 1.5 1.0 VCC = 48V 1.250 1.245 FB LOW-VOLTAGE THRESHOLD (V) 1.240 1.235 1.230 1.225 1.220 1.215 1.210 1.205 0 1.200 -40 -15 10 35 60 85 -40
2.4 2.1 1.8 ICC (mA) 1.5 1.2 0.9 0.6 0.3 0 0 8 TA = -40C TA = +25C TA = +85C
0.5
VCC = 24V
16 24 32 40 48 56 64 72 80 VCC (V)
-15
10
35
60
85
TEMPERATURE (C)
TEMPERATURE (C)
FB HIGH-VOLTAGE THRESHOLD vs. TEMPERATURE
MAX5932 toc04
FB HYSTERESIS vs. TEMPERATURE
MAX5932 toc05
IGATE PULLUP CURRENT vs. TEMPERATURE
-6 IGATE PULLUP CURRENT (A) -7 -8 -9 -10 -11 -12 -13
MAX5932 toc06
1.335 1.330 FB HIGH-VOLTAGE THRESHOLD (V) 1.325 1.320 1.315 1.310 1.305 1.300 1.295 1.290 1.285 1.280 -40 -15 10 35 60
0.11 0.10 FB HYSTERESIS (V) 0.09 0.08 0.07 0.06 0.05 0.04
-5
85
-40
-15
10
35
60
85
-40
-15
10
35
60
85
TEMPERATURE (C)
TEMPERATURE (C)
TEMPERATURE (C)
GATE DRIVE vs. TEMPERATURE
MAX5932 toc07
GATE DRIVE vs. VCC
14 GATE DRIVE (VGATE - VCC) (V) 12 10 8 6 4 2 0
MAX5932 toc08
15 14 GATE DRIVE (VGATE - VCC) (V) 13 12 11 10 9 8 7 6 5 -40 -15 10 35 60 VCC = 10.8V VCC = 48V
16
85
0
20
40 VCC (V)
60
80
TEMPERATURE (C)
_______________________________________________________________________________________
MAX5932 toc03
2.7
5
Positive High-Voltage, Hot-Swap Controller MAX5932
Typical Operating Characteristics (continued)
(VCC = +48V, TA = +25C, unless otherwise noted.)
TIMER PULLUP CURRENT vs. TEMPERATURE
MAX5932 toc09
TIMER PULLUP CURRENT vs. VCC
MAX5932 toc10
ON HIGH-VOLTAGE THRESHOLD vs. TEMPERATURE
MAX5932 toc11
-60 -65 -70 -75 -80 -85 -90 -40 -15 10 35 60
-73 -74 TA = +25C -75 -76 -77 -78 -79 TA = 0C TA = -40C
1.343 ON HIGH-VOLTAGE THRESHOLD (V) 1.333 1.323 1.313 1.303 1.293 1.283
TIMER PULLUP CURRENT (A)
TIMER PULLUP CURRENT (A)
TA = +85C
85
0
10
20
30
40 VCC (V)
50
60
70
80
-40
-15
10
35
60
85
TEMPERATURE (C)
TEMPERATURE (C)
ON LOW-VOLTAGE THRESHOLD vs. TEMPERATURE
MAX5932 toc12
ON HYSTERESIS vs. TEMPERATURE
MAX5932 toc13
1.265 ON LOW-VOLTAGE THRESHOLD (V) 1.255 1.245 1.235 1.225 1.215 1.205 -40 -15 10 35 60
0.083
0.081 ON HYSTERESIS (V)
0.079
0.077
0.075
0.073 85 -40 -15 10 35 60 85 TEMPERATURE (C) TEMPERATURE (C)
PWRGD VOUT LOW vs. ILOAD
MAX5932 toc14
SENSE REGULATION VOLTAGE vs. VFB
SENSE REGULATION VOLTAGE (mV) 45 40 35 30 25 20 15 10 5 0
MAX5932 toc15
20 18 16 PWRGD VOUT LOW (V) 14 12 10 8 6 4 2 0 10 30 50 ILOAD (mA) 70 TA = +85C TA = +25C TA = -40C
50
90
0
0.2
0.4
0.6
0.8
1.0
VFB (V)
6
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Positive High-Voltage, Hot-Swap Controller
Pin Description
PIN 1 NAME ON FUNCTION On/Off Control Input. ON is used to implement the undervoltage lockout threshold and resets the part after a fault condition (see the Detailed Description section). Power-Good Comparator Input. Connect a resistive divider from output to FB to GND to monitor the output voltage (see the Power-Good Detection section). FB is also used as a feedback for the current-limit foldback function. Open-Drain Power-Good Output. PWRGD is high when VFB is higher than VFBH. PWRGD is low when VFB is lower than VFBL. Ground Timing Input. Connect a capacitor from TIMER to GND to program the maximum time the part is allowed to remain in current limit (see the TIMER section). Gate-Drive Output. The high-side gate drive for the external n-channel MOSFET (see the GATE section). Current-Sense Input. Connect a sense resistor from VCC to SENSE and the drain of the external n-channel MOSFET. Power-Supply Input. Bypass VCC to GND with a 0.1F capacitor. Input voltage range is from +9V to +80V.
MAX5932
2
FB
3 4 5 6 7 8
PWRGD GND TIMER GATE SENSE VCC
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7
Positive High-Voltage, Hot-Swap Controller MAX5932
Functional Diagram
FB
VCC SENSE
MAX5932
VP GEN REF GEN 0.5V CHARGE PUMP AND GATE DRIVER
GATE
PWRGD
OPEN DRAIN
1.233V
ON VCC UNDERVOLTAGE LOCKOUT
8.3V
LOGIC VP
0.5V 80A
1.233V TIMER 3A
GND
8
_______________________________________________________________________________________
Positive High-Voltage, Hot-Swap Controller
Detailed Description
The MAX5932 is a fully integrated hot-swap controller for positive supply rails. The device allows for the safe insertion and removal of circuit cards into live backplanes without causing glitches on the backplane power-supply rail. During startup the MAX5932 acts as a current regulator using an external sense resistor and MOSFET to limit the amount of current drawn by the load. The MAX5932 features latched-off fault management. When an overcurrent or an overtemperature fault occurs, the MAX5932 turns the external MOSFET off and keeps it off. After the fault condition goes away, cycle the power supply or toggle ON low and high again to unlatch the device. The MAX5932 operates from +9V to +80V supply voltage range and has a default undervoltage lockout (UVLO) set to +8.3V. The UVLO threshold is adjustable using a resistive divider connected from VCC to ON to GND (see R1 and R2 in Figure 5). The MAX5932 monitors the input voltage, the output voltage, the output current, and the die temperature. This device features a power-good output (PWRGD) to indicate the status of the output voltage by monitoring the voltage at FB (see the Power-Good Detection section). As shown in Figure 5, a sense resistor is connected between VCC and SENSE to sense the load current. The device regulates the voltage across the sense resistor (VIN - VSENSE) to 47mV when the voltage at FB 0.5V. The current-limit threshold (V SENSETRIP ) decreases linearly from 47mV to 12mV as FB decreases from 0.5V to 0V. An undervoltage fault is detected when ON goes below the threshold, VONL = 1.233V, which causes the voltage at GATE to go low, and results in turning off the MOSFET. To turn the MOSFET on again, ON must pass the VONH = 1.313V threshold.
MAX5932
VIN 24V
RSENSE 0.025
Q1 IRF530 CL R5 10 5% D1 CMPZ5248B R6 1k 5% 6 GATE 2 R4 3.57k 1% 3 C1 10nF FB R3 59k 1% R7 24k 5%
R1 49.9k 1%
0.1F 8 VCC 1 7 SENSE
ON
R2 3.4k 1% 5
MAX5932
TIMER PWRGD
PWRGD
C2 0.68F
GND 4
GND
Figure 5. Application Circuit _______________________________________________________________________________________ 9
Positive High-Voltage, Hot-Swap Controller MAX5932
Applications Information
Hot-Circuit Insertion
When circuit boards are inserted into a live backplane, the supply bypass capacitors on the boards draw high peak currents from the backplane power bus as they charge up. The transient currents can permanently damage the connector pins and glitch the system supply, causing other boards in the system to reset.
Short-Circuit Protection
The MAX5932 features a programmable foldback current limit with an electronic circuit breaker that protects against short circuits or excessive supply currents. The current limit is set by placing a sense resistor between VCC (pin 8) and SENSE (pin 7). To prevent excessive power dissipation in the pass transistor and to prevent voltage spikes on the input supply during short-circuit conditions at the output, the current folds back as a function of the output voltage that is sensed at FB (Figure 7). When the voltage at FB is 0V, the current-limit circuit drives GATE to force a constant 12mV drop across the sense resistor. As the output voltage at FB increases, the voltage across the sense resistor increases until FB reaches 0.5V, at the point that the voltage across the sense resistor is held constant at 47mV. The maximum current limit is calculated as: ILIMIT = 47mV/RSENSE For a 0.025 sense resistor, the current limit is set at 1.88A and folds back to 480mA when the output is shorted to ground. The MAX5932 also features a variable overcurrent response time. The time required to regulate Q1's drain current depends on: * Q1's input capacitance. * GATE capacitor C1 and compensation resistor R6. * The internal delay from SENSE to GATE. Figure 8 shows the delay from a voltage step at SENSE until GATE voltage starts falling, as a function of overdrive.
Power-Up Sequence
The power supply on a board is controlled by placing an external n-channel MOSFET (Q1) in the power path (Figure 5). Resistor RSENSE provides current detection and capacitor C1 provides control of the GATE slew rate. Resistor R6 provides current control-loop compensation while R5 prevents high-frequency oscillations in Q1. Resistors R1 and R2 provide undervoltage sensing. After the power pins first make contact, transistor Q1 is turned off. When the voltage at ON exceeds the turn-on threshold voltage, the voltage on VCC exceeds the undervoltage lockout threshold, and the voltage on TIMER is less than 1.233V, transistor Q1 turns on (Figure 6). The voltage at GATE rises with a slope equal to 10A/C1 and the supply inrush current is set at: IINRUSH = CL x 10A/C1 When the voltage across the current-sense resistor RSENSE reaches VSENSETRIP, then the inrush current is limited by the internal current-limit circuitry that adjusts the voltage on GATE to maintain a constant voltage across the sense resistor. Once the voltage at the output has reached its final value, as sensed by resistors R3 and R4, PWRGD goes high.
POWER-UP WAVEFORMS
GATE 50V/div
VCC - VSENSE
47mV
ISENSE 2A/div OUTPUT 50V/div PWRGD 50V/div 0V 20ms/div 0.5V VFB
12mV
Figure 6. Power-Up Waveforms 10
Figure 7. Current-Limit Sense Voltage vs. Feedback Voltage
______________________________________________________________________________________
Positive High-Voltage, Hot-Swap Controller MAX5932
RESPONSE TIME TO OVERCURRENT
14 12 PROPAGATION DELAY (s) 10 8 6 4 2 0 0 100 200 300 VCC - VSENSE (mV) 10ms/div TIMER 1V/div GATE 50V/div
SHORT-CIRCUIT WAVEFORMS
OUTPUT 50V/div ISENSE 1A/div
Figure 8. Response Time to Overcurrent
Figure 9. Short-Circuit Waveforms
TIMER
TIMER provides a method for programming the maximum time the device is allowed to operate in current limit. When the current-limit circuitry is not active, TIMER is pulled to GND by a 3A current source. After the current-limit circuit becomes active, an 80A pullup current source is connected to TIMER and the voltage rises with a slope equal to 77A/CTIMER as long as the current-limit circuit remains active. Once the desired maximum current-limit time is chosen, the capacitor value is calculated using the following equations: C(nF) = 65 x t(ms) or TLIMIT = (CTIMER/80A) x 1.233V When the current-limit circuit turns off, TIMER is discharged to GND by the 3A current source. Whenever TIMER reaches 1.233V, the internal fault latch is set. GATE is immediately pulled to GND and TIMER is pulled back to GND by the 3A current source. When TIMER falls below 0.5V, ON is pulsed low to reset the internal fault latch. The waveform in Figure 9 shows how the output latches off following a short circuit. The drop across the sense resistor is held at 12mV as the timer ramps up. Since the output did not rise, FB remains below 0.5V and the circuit latches off. For Figure 9, CT = 100nF.
Figure 10 shows an overvoltage detection circuit. When the input voltage exceeds the Zener diode's breakdown voltage, D1 turns on and starts to pull TIMER high. After TIMER is pulled higher than 1.233V, the fault latch is set and GATE is pulled to GND immediately, turning off transistor Q1 (see Figure 11). Operation is restored either by interrupting power or by pulsing ON low.
Power-Good Detection
The MAX5932 includes a comparator for monitoring the output voltage. The noninverting input (FB) is compared against an internal 1.233V precision reference and exhibits 80mV hysteresis. The comparator's output (PWRGD) is an open drain one capable of operating from a pullup as high as 80V. The PWRGD can be used to directly enable/disable a power module with an active-high enable input. Figure 12 shows how to use PWRGD to control an active-low enable-input power module. Signal inversion is accomplished by transistor Q2 and R7 or use MAX5933.
Supply Transient Protection
The MAX5932 is 100% tested and guaranteed to be safe from damage with supply voltages up to 80V. However, spikes above 85V may damage the device. During a short-circuit condition, the large change in currents flowing through the power-supply traces can cause inductive voltage spikes that could exceed 85V. To minimize the spikes, the power-trace parasitic inductance should be minimized by using wider traces or heavier trace plating and a 0.1F bypass capacitor placed between V CC and GND. A transient voltage suppressor (TVS) at the input can also prevent damage from voltage surges.
Undervoltage and Overvoltage Detection
ON can be used to detect an undervoltage condition at the power-supply input. ON is internally connected to an analog comparator with 80mV of hysteresis. If ON falls below its threshold voltage (1.233V), GATE is pulled low and is held low until ON is high again.
______________________________________________________________________________________
11
Positive High-Voltage, Hot-Swap Controller MAX5932
RSENSE 0.025 VIN SHORT PIN R1 49.9k 1%
Q1 IRF530 CL R5 10 5% D2 CMPZ5248B R6 1k 5% 6 GATE 2 R4 3.57k 1% 3 C1 10nF FB R3 59k 1% R7 24k 5%
D1 30V 1N5256B
0.1F
8 VCC 1
7 SENSE
ON
MAX5932
R2 3.4k 1% C2 0.68F 5 TIMER PWRGD
PWRGD
GND 4
GND
Figure 10. Overvoltage Detection
GATE Voltage
OVERVOLTAGE WAVEFORMS
IN 50V/div ISENSE 5A/div
GATE 50V/div TIMER 10V/div OUTPUT 50V/div 10s/div
A curve of Gate Drive vs. VCC is shown in Figure 13. GATE is clamped to a maximum voltage of 18V above the input voltage. At a minimum input-supply voltage of 9V, the minimum gate-drive voltage is 4.5V. When the inputsupply voltage is higher than 20V, the gate-drive voltage is at least 10V and a standard n-channel MOSFET can be used. In applications over a 9V to 20V range, a logic-level n-FET must be used with a proper protection Zener diode between its gate and source (as D1 shown in Figure 5).
Thermal Shutdown
If the MAX5932 die temperature reaches +150C, an overtemperature fault is generated. As a result, GATE goes low and turns the external MOSFET off. The MAX5932 die temperature must cool down below +130C before the overtemperature fault condition is removed.
Figure 11. Overvoltage Waveforms 12 ______________________________________________________________________________________
Positive High-Voltage, Hot-Swap Controller MAX5932
RSENSE 0.01 VIN SHORT PIN R1 294k 1%
Q1 IRF530
0.1F
R5 10 5%
D1 CMPZ5248B R6 1k 5% 6 GATE 2 R4 4.22k 1% 3 C1 10nF FB R3 143k 1% R7 47k 5% VIN+ ON/OFF VINVOUTVOUT+ VOUT
CL 220F
8 VCC 1
7 SENSE
ON
MAX5932
R2 10.2k 1% C2 0.68F 5 TIMER PWRGD
GND 4
GND
Figure 12. Active-Low Enable Module GATE DRIVE vs. VCC
16 14 GATE DRIVE (VGATE - VCC) (V) 12 10 8 6 4 2 0 0 20 40 VCC (V) 60 80
Layout Considerations
To achieve accurate current sensing, a Kelvin connection is recommended. The minimum trace width for 1oz copper foil is 0.02in per amplifier to make sure the trace stays at a reasonable temperature. Using 0.03in per amplifier or wider is recommended. Note that 1oz copper exhibits a sheet resistance of about 530/square. Small resistances add up quickly in high-current applications. To improve noise immunity, connect the resistor-divider to ON close to the device and keep traces to VCC and GND short. A 0.1F capacitor from ON to GND also helps reject induced noise. Figure 14 shows a layout that addresses these issues. External MOSFET must be thermally coupled to the MAX5932 to ensure proper thermal shutdown operation (see Figure 14).
Figure 13. Gate Drive vs. Supply Voltage ______________________________________________________________________________________ 13
Positive High-Voltage, Hot-Swap Controller MAX5932
Chip Information
TRANSISTOR COUNT: 1573 PROCESS: BiCMOS
IRF530
Figure 14. Recommended Layout for R1, R2, and RSENSE
Typical Application Circuit
RSENSE 0.01 VIN Q1 IRF530 CL R5 10 5% D1 CMPZ5248B R6 1k 5% 6 GATE 2 R4 3.57k 1% 3 C1 10nF FB R3 59k 1% R7 24k 5%
*SMBJ51A
R1 49.9k 1%
0.1F
8 VCC 1 R2 3.4k 1% 5
7 SENSE
ON
MAX5932
TIMER PWRGD
PWRGD
C2 0.68F
GND 4
GND *DIODES, INC.
14
______________________________________________________________________________________
Positive High-Voltage, Hot-Swap Controller
Package Information
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information go to www.maxim-ic.com/packages.)
SOICN .EPS
MAX5932
INCHES DIM A A1 B C e E H L MAX MIN 0.069 0.053 0.010 0.004 0.014 0.019 0.007 0.010 0.050 BSC 0.150 0.157 0.228 0.244 0.016 0.050
MILLIMETERS MAX MIN 1.35 1.75 0.10 0.25 0.35 0.49 0.19 0.25 1.27 BSC 3.80 4.00 5.80 6.20 0.40 1.27
N
E
H
VARIATIONS:
1
INCHES
MILLIMETERS MIN 4.80 8.55 9.80 MAX 5.00 8.75 10.00 N MS012 8 AA 14 AB 16 AC
TOP VIEW
DIM D D D
MIN 0.189 0.337 0.386
MAX 0.197 0.344 0.394
D C
A e B A1
0-8 L
FRONT VIEW
SIDE VIEW
PROPRIETARY INFORMATION TITLE:
PACKAGE OUTLINE, .150" SOIC
APPROVAL DOCUMENT CONTROL NO. REV.
21-0041
B
1 1
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 15 (c) 2004 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products.

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