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MIC58P01
Micrel
MIC58P01
8-Bit Parallel-Input Protected Latched Driver
General Description
The MIC58P01 parallel-input latched driver is a high-voltage (80V), high-current (500mA) integrated circuit comprised of eight CMOS data latches, a bipolar Darlington transistor driver for each latch, and CMOS control circuitry for the common CLEAR, STROBE, and OUTPUT ENABLE functions. Similar to the MIC5801, additional protection circuitry supplied on this device includes thermal shutdown, under voltage lockout (UVLO), and overcurrent shutdown. The bipolar/CMOS combination provides an extremely lowpower latch with maximum interface flexibility. The MIC58P01 has open-collector outputs capable of sinking 500 mA and integral diodes for inductive load transient suppression with a minimum output breakdown voltage rating of 80V (50V sustaining). The drivers may be paralleled for higher load current capability. With a 5V logic supply, the MIC58P01 will typically operate at better than 5MHz. With a 12V logic supply, significantly higher speeds are obtained. The CMOS inputs are compatible with standard CMOS, PMOS, and NMOS circuits. TTL circuits may require pull-up resistors. Each of these eight outputs has an independent overcurrent shutdown of 500mA. Upon current shutdown, the affected channel will turn OFF until VDD is cycled or the ENABLE/ RESET pin is pulsed high. Current pulses less than 2s will not activate current shutdown. Temperatures above 165C will shut down all outputs. The UVLO circuit disables the outputs at low VDD; hysteresis of 0.5V is provided.
Features
* * * * * * * * * 4.4MHz Minimum Data Input Rate High-Voltage, High-Current Outputs Per-Output Overcurrent Shutdown (500mA typical) Under Voltage Lockout Thermal Shutdown Output Transient Protection Diodes CMOS, PMOS, NMOS, and TTL Compatible Inputs Internal Pull-Down Resistors Low-Power CMOS Latches
Ordering Information
Part Number MIC58P01BN MIC58P01BV MIC58P01BWM Temperature Range -40C to +85C -40C to +85C -40C to +85C Package 22-Pin Plastic DIP 28-Pin PLCC 24-Pin Wide SOIC
7
Functional Diagram
ENABLE/RESET STROBE V DD CLEAR ISHUTDOWN IREF IOUT / N -
Pin Configuration
(DIP)
CLEAR STROBE IN1 IN2
OUTPUT
1 2 3 4
LATCHES
22 I LIMIT AND THERMAL SHUTDOWN 21 20 19 18 17 16 15 14 13 UVLO 12
OUTPUT ENABLE/RESET VDD OUT1 OUT2 OUT3 OUT4 OUT5 OUT6 OUT7 OUT8 COMMON
+
2.2R + - UVLO THERMAL SHUTDOWN S R Q COMMON
1.25V R
IN3 IN4
5 6 7 8 9
IN
R1 70k
IN5 IN6
Circuitry below dashed line is included in each of the 8 channels.
V EE
R2 3k
IN7
IN8 10 GROUND 11
October 1998
7-17
MIC58P01
Micrel
Pin Configuration, Continued
OE/RESET STROBE CLEAR
Absolute Maximum Ratings: (Note 1)
at +25C Free-Air Temperature Output Voltage, VCE Supply Voltage, VDD Input Voltage Range, VIN Package Power Dissipation: MIC58P01BN Derate above TA = +25C MIC58P01BV Derate above TA = +25C MIC58P01BWM Derate above TA = +25C Operating Temperature Range, TA Storage Temperature Range, TS 80V 15V -0.3V to VDD + 0.3V 2.25W 22.5mW/C 1.6W 16mW/C 1.4W 14mW/C -55C to +85C -65C to +125C
VDD
27
NC
NC
4
3
2
1
28
NC
26 25 24 23
IN 1 IN 2 IN 3 IN 4 IN 5 IN 6 IN 7
5 6 7 8 9 10 11 12 13 14 15 16 17 18
OUT 1 OUT 2 OUT 3 OUT 4 OUT 5 OUT 6 OUT 7
MIC58P01BV
22 21 20 19
COMMON
GROUND
Note 1: Micrel CMOS devices have input-static protection but are susceptible to damage when exposed to extremely high static electrical charges.
NC
NC
MIC58P01BV, 28-Pin PLCC
OUT 8
IN 8
NC
Typical Input
V DD
GROUND CLEAR STROBE IN1 IN2 IN3 IN4 IN5 IN6
1 2 3 4 5 6
24 23 22 21 20 19
NC OUTPUT ENABLE/RESET VDD OUT1 OUT2 OUT3 OUT4 OUT5 OUT6 OUT7 OUT8 COMMON
IN
MIC58P01BWM
7 8 9 18 17 16 15 14 13
Allowable Output Current As A Function of Duty Cycle
ALLOWABLE COLLECTOR CURRENT IN mA AT 50C
MIC58P01BN
450 400 350 300 250 200 150 100 0 NUMBER OF OUTPUTS CONDUCTING SIMULTANEOUSLY 10 20 30 40 50 60 70 80 90 100 6 7 8 4 5 3 1 or 2
IN7 10 IN8 11 GROUND 12
MIC58P01BWM, 24-Pin SOIC (not pin compatible with MIC5801BWM)
PERCENT DUTY CYCLE
Pin Description
Pin (DIP) 1 2 3-10 11 12 13-20 21 22 Name CLEAR STROBE INPUT GROUND COMMON OUTPUT VDD OUTPUT ENABLE/RESET Description Resets all Latches and turns all outputs OFF (open). Input Strobe Pin. Loads output latches when High. Parallel Inputs, 1 through 8 Logic and Output Ground pin. Transient suppression diode common cathode pin. Parallel Outputs, 8 through 1. Logic Supply voltage. When Low, Outputs are active. When High, outputs are inactive and device is reset from a fault condition. An undervoltage condition emulates a high OE input. 7-18 October 1998
MIC58P01
Micrel
Electrical Characteristics: at TA = +25C, VDD = 5V (unless otherwise noted)
Limits Characteristic Output Leakage Current Collector-Emitter Saturation Voltage Input Voltage VIN(0) VIN(1) VDD = 12V VDD = 10V VDD = 5.0V (See Note) Input Resistance RIN VDD = 12V VDD = 10V VDD = 5.0V Supply Current IDD(ON) (One output active) IDD(ON) (All outputs active) IDD(OFF) (Total) Clamp Diode Leakage Current Overcurrent Threshold Start-Up Voltage Minimum Operating VDD Clamp Diode Forward Voltage Thermal Shutdown Thermal Shutdown Hystersis
NOTE 1: NOTE 2:
Symbol ICEX VCE(SAT)
Test Conditions VCE = 80V, TA = +25C VCE = 80V, TA = +70C IC = 100mA IC = 200mA IC = 350mA
Min.
Typ.
Max. Units 50 100 A V
0.9 1.1 1.3 10.5 8.5 3.5 50 50 50 200 300 600 3.3 3.1 2.4 6.4 6.0 4.7 3.0 2.2
1.1 1.3 1.6 1.0
V
k
VDD = 12V, Outputs Open VDD = 10V, Outputs Open VDD = 5.0V, Outputs Open VDD = 12V, Outputs Open VDD = 10V, Outputs Open VDD = 5.0V, Outputs Open VDD = 12V, Outputs Open, Inputs = 0V VDD = 5.0V, Outputs Open, Inputs = 0V VR = 80V, TA = +25C VR = 80V, TA = +70C Per Output Note 2. IF = 350mA 3.5 3.0
4.5 4.5 3.6 10.0 9.0 7.5 4.5 3.6 50 100
mA
mA
mA A mA
IR ILIM VSU VDD MIN VF
500 4.0 3.5 1.7 165 10 4.5 4.0 2.0
V V V C C
7
Operation of these devices with standard TTL or DTL may require the use of appropriate pull-up resistors to insure a minimum logic "1". Under-Voltage Lockout is guaranteed to release device at no more than 4.5V, and disable the device at no less than 3.0V.
Truth Table
Output INN 0 1 X X X X Strobe 1 1 X X 0 0 Clear 0 0 1 X 0 0 Enable 0 0 X 1 0 0 X X X X ON OFF OUTN t-1 t OFF ON OFF OFF ON OFF
Information present at an input is transferred to its latch when the STROBE is high. A high CLEAR input will set all latches to the output OFF condition regardless of the Data or STROBE input levels. A high OUTPUT ENABLE will set all outputs to the OFF condition, regardless of any other input conditions. When the OUTPUT ENABLE is low, the outputs depend on the state of their respective latches. If current shutdown is activated, the OUTPUT ENABLE must be pulsed high to restore operation. Over temperature faults are not latched and require no reset pulse.
X = Irrelevant t-1 = previous output state t = present output state
October 1998
7-19
MIC58P01
Micrel
CLEAR F STROBE
OUTPUT ENABLE
A
C
B
C
B
A
C
B
G IN N D OUT N E E
G
Timing Conditions
(TA A. B. C. D. E. F. G. = +25C, Logic Levels are VDD and Ground, VDD = 5V) Minimum data active time before strobe enabled (data set-up time) ....................................................................... 50ns Minimum data active time after strobe disabled (data hold time) ............................................................................. 50ns Minimum strobe pulse width .................................................................................................................................. 125 ns Typical time between strobe activation and output on to off transition ................................................................... 500ns Typical time between strobe activation and output off to on transition ................................................................... 500ns Minimum clear pulse width ..................................................................................................................................... 300ns Minimum data pulse width ..................................................................................................................................... 225 ns
Typical Characteristic Curves
CURRENT SHUTDOWN DELAY (S)
SATURATION VOLTAGE (V)
SUPPLY CURRENT (mA)
1.6 1.5 1.4 1.3 1.2 1.1 1 0.9 0.8
Output Saturation Voltage vs. Temperature
IL = 350mA
6 5 4
Supply Current vs. Temperature
7 6 5 4 3 2 1
Current Shutdown Delay vs. Output Current
ALL OUTPUTS ON VDD = 5V
VDD = 5V to 12V
3 2 1 0 -50 0 50 100 TEMPERATURE (C) 150 ALL OUTPUTS OFF
VDD = 5V VDD = 12V 0.5 0.6 0.7 0.8 OUTPUT CURRENT (A) 0.9
IL = 100mA
0.7 0.6 -50
0 50 100 TEMPERATURE (C)
150
0 0.4
Current Shutdown Threshold vs. Temperature
0.60
SHUTDOWN THRESHOLD (A)
8
Supply Current vs. Temperature
OUTPUT DELAY (nS)
260 240
Output Delay vs. Supply Voltage
RL = 50
0.55 VDD = 5V 0.50 0.45 0.40 0.35 -50 VDD = 12V
SUPPLY CURRENT (mA)
7 6 5 4 3 2 1 0 -50 0 50 100 TEMPERATURE (C) 150 ALL OUTPUTS OFF VDD = 12V ALL OUTPUTS ON
220 200 180 160 140 120 100 5 6 7 8 9 10 11 12 13 14 15 SUPPLY VOLTAGE (V) TD ON TD OFF
0 50 100 TEMPERATURE (C)
150
7-20
October 1998
MIC58P01
Micrel
Typical Application
+5V 0.1 1 STROBE INPUT 1 INPUT 2 INPUT 3 INPUT 4 INPUT 5 INPUT 6 INPUT 7 INPUT 8 2 3 4 5 6 7 8 9 10 11 LATCHES 22 21 K1 20 K2 19 K3 18 K4 17 K5 16 K6 15 K7 14 K8 13 12
Relays: Guardian Electric 1725-1C-12D
+12V 22 +
MIC58P01 Protected Relay Driver
7
October 1998
7-21

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