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OM7654SM
SURFACE MOUNT 1.5 AMP HIGH VOLTAGE POSITIVE AND NEGATIVE ADJUSTABLE REGULATOR
Dual Positive And Negative Adjustable High Voltage Regulators In Isolated Hermetic Surface Mount Package
FEATURES
* * * * * * * Similar To Industry Standard LT117AHV And LT137AHV Adjustable Output Voltage Built In Thermal Overload Protection Short Circuit Current Limiting Hermetic 6-Pin Metal Surface Mount Package Maximum Output Voltage Tolerance Is Guaranteed To 1% Available Hi-Rel Screened
DESCRIPTION
This device offers a positive and negative adjustable regulator in one hermetically sealed 6-pin surface mount package. All protective features are designed into the circuit, including thermal shutdown, current limiting, and safe-area control. With heat sinking, these devices can deliver up to 1.5 amps of output current. This device is ideally suited for military applications where small size and high reliability is required.
ABSOLUTE MAXIMUM RATINGS
Input - Output Voltage Differential - LT117AHV Positive Regulator . . . . . . . . . . . . . . . . . + 60 V Input - Output Voltage Differential - LT137AHV Negative Regulator . . . . . . . . . . . . . . . . . . - 50 V Power Dissipation (Pd) (Internally Limited) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 W Operating Junction Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 55C to + 150C Storage Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 65C to + 150C Lead Temperature (Soldering 10 seconds) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300C Thermal Resistance: JC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.2C/W JA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42C/W Maximum Output Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5 A DUAL TRACKING SUPPLY 1.25V TO 20V MECHANICAL OUTLINE
.425
+VIN 1
.100 .200
*
POS REG. VIN VOUT Adj 1F* R1** 100 1% R3 5K 2.2* F
+VOUT
6 5 4
.425
2 3
.035 WIDE FLAT 6 PLCS.
D1 IN4002
3.5
+
Pin 1: Pin 2: Pin 3: Pin 4: Pin 5: Pin 6:
+VIN -VADJ -VIN -VOUT +VADJ +VOUT
.020
10F
+
10F
.350 MIN. .020 .115 .160
R2 5K 1% R4 5k 1%
1F* Adj VIN VOUT NEG REG.
R5** 100 1%
2.2* F
D2 IN4002 -VOUT
.080
-VIN
NOTES: * Case is metal/hermetically sealed * Isolated Tab
4 11 R1 Supersedes 2 07 R0
* Solid Tantalum ** R1 or R2 may be trimmed slightly to improve tracking.
3.5 - 151
OM7645SM
ELECTRICAL CHARACTERISTICS Positive Regulator -55C TA 125C, IL = 8mA (unless otherwise specified)
Parameter Reference Voltage Symbol VREF Test Conditions VDIFF = 3.0V, TA = 25C VDIFF = 3.3V VDIFF = 40V VDIFF = 60V 3.0V VDIFF 40V, Vout = Vref, TA = 25C 3.3V VDIFF 40V, Vout = Vref 40V VDIFF 60V, Vout = Vref, TA = 25C 40V VDIFF 60V, Vout = Vref VDIFF = 3.0V, 10mA IL 1.5A, TA = 25C VDIFF = 3.3V, 10mA IL 1.5A VDIFF = 40V, 10mA IL 300mA, TA = 25C VDIFF = 40V, 10mA IL 195mA VDIFF = 60V, 10mA IL 30mA Vin = 14.6V, IL = 1.5A Pd = 20 Watts, t = 20 ms, TA = 25C f = 120 Hz, Vout = Vref CAdj = 10 F, Iout = 100 mA VDIFF = 3.0V, TA = 25C VDIFF = 3.3V VDIFF = 40V VDIFF = 60V VDIFF = 3.0V, 10mA IL 1.5A, TA = 25C VDIFF = 3.3V, 10mA IL 1.5A VDIFF = 40V, 10mA IL 300mA, TA = 25C VDIFF = 40V, 10mA IL 195mA 3.0V VDIFF 40V, TA = 25C 3.3V VDIFF 40V 3.3V VDIFF 60V ILmin VDIFF = 3.0V, Vout = 1.4V (forced) VDIFF = 3.3V, Vout = 1.4V (forced) VDIFF = 40V, Vout = 1.4V (forced) VDIFF = 60V, Vout = 1.4V (forced) VDIFF = 5V VDIFF = 40V, TA = 25C VDIFF = 60V, TA = 25C Min. Max. 1.262 1.270 1.270 1.270 4.5 -9 5 10 15 15 15 15 15 5 Unit V
* * * * * * * * * * * *
1.238 1.225 1.225 1.225 -4.5 -9 -5 -10 -15 -15 -15 -15 -15 -5 66
Line Regulation (Note 1)
RLINE
mV
Load Regulation (Note 1)
RLOAD
mV
Thermal Regulation Ripple Rejection (Note 2) Adjustment Pin Current
VRTH RN IAdj
mV dB
100 100 100 100 -5 5 5 5 5 5 5 5 5.0 5.0 5.0 7.0 1.5 0.3 0.05 3.5 1.5 0.50 -5 -5 -5 -5 -5 -5
A
Adjustment Pin Current Change
IAdj
* * * * * * * *
A
Miminum Load Current
mA
Current Limit (Note 2)
ICL
A
ELECTRICAL CHARACTERISTICS Positive Regulator -55C TA 125C, IL = 8mA (unless otherwise specified)
Parameter Reference Voltage Symbol VREF Test Conditions VDIFF = 3.0V, TA = 25C VDIFF = 3.0V VDIFF= 50V, TA = 25C VDIFF = 50V 3.0 V VDIFF 50V, TA = 25C VDIFF = 50V, 8mA IL 110mA, TA = 25C VDIFF = 5V, 8mA IL 1.5A, TA = 25C Vin = -14.6V, IL = 1.5A Pd = 20 Watts, t = 10 ms, TA = 25C f = 120 Hz, Vout = Vref CAdj = 10 F, Iout = 100 mA VDIFF = 3.0V VDIF = 40V VDIFF = 50V VDIFF = 5V, 8mA Iout 1.5A 3V VDIFF 50V, IL 8mA VDIFF = 3.0V, Vout = -1.4V (forced) VDIFF = 10V, Vout = -1.4V (forced) VDIFF = 40V, Vout = -1.4V (forced) VDIFF = 50V, Vout = -1.4V (forced) VDIFF = 5V VDIFF = 50V, TA = 25C Min. Max. -1.238 -1.22 -1.22 -1.22 6 20 25 25 50 5 Unit V
* * * *
-1.262 -1.28 -1.28 -1.28 -6 -20 -25 -25 -50 -5
Line Regulation (Note 1) Load Regulation (Note 1) Thermal Regulation Ripple Rejection (Note 2) Adjustment Pin Current
RLINE RLOAD
mV mV mV dB
VRTH RN IAdj
* * * * * * * * * * *
66 100 100 100 -5 -6 5 6 3.0 3.0 5.0 5.0 1.5 0.2 3.5 1.0
A A
Adjustment Pin Current Change Miminum Load Current
IAdj ILmin
mA
3.5
Current Limit (Note 2) ICL
A
Notes for both Positive and Negative Regulators Characteristics: 1. Load and Line Regulation are specified at a constant junction temperature. Pulse testing with low duty cycle is used Changes in output voltage due to heating effects must be taken into account separately. 2. If not tested, shall be guaranteed to the specified limits. 3. The * denotes the specifications which apply over the full operating temperature range.
3.5 - 152
OM7654SM
POSITIVE REGULATOR - TYPICAL PERFORMANCE CHARACTERISTICS
LOAD REGULATION
4
CURRENT LIMIT
4
VO, Output Voltage Change (%)
0.4 0.4
IO, Output Current (A)
0.2 0.2
3 3
0 0 -0.2 -0.2 -0.4 -0.4 -0.6 -0.6 -0.8 -0.8 -1.0 -1.0
-75 -75 -50 -25 -50 -25 0 0 25 25 50 50
IL = 0.5A
TJ = 25C
2 2
IL = 1.5A VI = 15V VO = 10V
100 125 150 75 75 100 125 150
TJ = 55C
1 1
TJ = 150C
0 0 0 0 10 10 20 20 30 30 40 40
TJ, Junction Temperature (C)
VI - VO, Input - Output Voltage Differential (Vdc)
VI - VO, Input - Output Voltage Differential (Vdc)
ADJUSTMENT PIN CURRENT
IAdj, Adjustment Pin Current (A)
70 70 65 65 60 60 55 55 50 50 45 45 40 40 35 -75 -50 -75 -50
DROPOUT VOLTAGE
3.0 3.0
VO = 100mV
2.5 2.5
IL = 1.5A IL = 1.0A IL = 500mA
2.0 2.0
1.5 1.5 IL = 20mA IL = 200mA 1.0 1.0 -75 -50 -25 00 25 50 75 100 125 150 -75 -50 -25 100 125 150 25 50 75 TJ, Junction Temperature (C)
-25 -25
0 0
25 25
50 50
100 125 150 75 100 125 150 75
TJ, Junction Temperature (C)
TEMPERATURE STABILITY
1.260 1.260
MINIMUM OPERATING CURRENT
5.0 5.0 4.5 4.5 4.0 4.0 3.5 3.5 3.0 3.0 2.5 2.5 2.0 2.0 1.5 1.5 1.0 1.0 0.5 0.5 0 0 0 0
TJ = 55C
Vref, Reference Voltage (V)
1.250 1.250
IB, Quiescent Current (mA)
TJ = 25C TJ = 150C
1.240 1.240
1.230 1.230
1.220 1.220 -75 -50 -25 -75 -50 -25
0 0
25 25
100 125 150 75 50 50 75 100 125 150
10 10
20 20
30 30
40 40
TJ, Junction Temperature (C)
VI - VO, Input - Output Voltage Differential (Vdc)
STANDARD APPLICATION
Vin Vout Positive Regulator R1 240 IAdj Cin* 0.1 F R2 Adjust Co** 1.0 F
* Cin is required if regulator is located an appreciable distance from power supply filter. ** Co is not needed for stability, however it does improve transient response. R Vout = 1.25 V (1 + 2 )+ IAd j R2 R1 Since IAdj is controlled to less than 100 A, the error associated with this term is negligible in most applications.
3.5
3.5 - 153

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