Document
Voltage Regulator
VRG8609/10
Dual 1.5A Adjustable Negative Voltage Regulators Released Datasheet Cobham.com/HiRel
March 24, 2016
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FEATURES
Manufactured using
Linear Technology Corporation ® Space Qualified RH137 die
Radiation performance
Load regulation: 1.0% max
- Total dose: 100 krad(Si), Dose rate = 50-300 rad(Si)/s
- ELDRS: 50 krad(Si), Dose rate < 10 mrad(Si)/S
Thermal shutdown
Output voltage adjustable: -1.25V to -27V
3-Terminal
Output current: 1.5A
Voltage reference: -1.25V
Line regulation: 0.05% max Ripple rejection: >66dB Packaging – Hermetic metal
- Thru-hole or Surface mount - 6 Leads, .655"L x .415"W x .200"Ht - Power package - Weight - 5 gm max Designed for aerospace and high reliability space applications
Radiation Hardness Assurance Plan: DLA Certified to MIL-PRF-38534, Appendix G.
DESCRIPTION
The VRG8609/10 consists of two negative (RH137) voltage regulators each capable of supplying in excess of 1.5Amps over the output voltage range as defined under recommended operating conditions. Each regulator is exceptionally easy to set-up, requiring only 2 external resistors to set the output voltage. The module design has been optimized for excellent regulation and low thermal transients. There is full electrical isolation between the regulators and each regulator to the package.
Further, the VRG8609/10 features internal current limiting, thermal shutdown and safe-area compensation, making them virtually blowout-proof against overloads. The VRG8609/10 serves a wide variety of applications including local on-card regulation, programmable output voltage regulation or precision current regulation.
The VRG8609/10 has been specifically designed to meet exposure to radiation environments. The VRG8609 is configured for a Thru-Hole 6 lead metal power package and the VRG8610 is configured for a Surface Mount 6 lead metal power package. It is guaranteed operational from -55°C to +125°C. Available screened to MIL-STD-883, the VRG8609/10 is ideal for demanding military and space applications.
For detailed performance characteristic curves, applications information and typical applications see the
latest
Linear Technology Corporation ® data sheets for their RH/LT137, which is available on-line at
www.linear.com.
14
ADJ
ADJ
2 VOUT
VOUT
6
RH137 Negative Regulator
RH137 Negative Regulator
VIN VIN
SCD8609 Rev F
35
FIGURE 1 – BLOCK DIAGRAM / SCHEMATIC
1 Cobham Semiconductor Solutions www.cobham.com/HiRel
ABSOLUTE MAXIMUM RATINGS
PARAMETER Operating (Junction) Temperature Range Lead Temperature (soldering, 10 sec) Storage Temperature Range Input-Output Voltage Differential
Thermal Resistance (junction to case JC) each, Pos. & Neg.
ESD Rating
RANGE -55 to +150
300 -65 to +150
30 (Neg) 5
1.999 1/
UNITS C °C C V
°C/W
KV
1/ Meets ESD testing per MIL-STD-883, method 3015, Class 1C. NOTICE: Stresses above those listed under "Absolute Maximums Rating" may cause permanent damage to the device. These are stress rating
only; functional operation beyond the "Operation Conditions" is not recommended and extended exposure beyond the "Operation Conditions" may effect device reliability.
RECOMMENDED OPERATING CONDITIONS
PARAMETER
RANGE
Output Voltage Range Case Operating Temperature Range
-1.3 to -27 -55 to +125
ELECTRICAL PERFORMANCE CHARACTERISTICS 1/
UNITS VDC °C
PARAMETER
SYM
CONDITIONS (PPMAX
MIN MAX UNITS
Reference Voltage 4/
VREF 3V < (VIN - VOUT) < VDIFF MAX, 10mA < IOUT < IMAX -1.200 -1.300
V
Line Regulation 2/, 4/
VOUT VIN
3V < (VIN - VOUT) < 30V,
- 0.05 %/V
Load Regulation 2/, 4/
VOUT 10mA < IOUT < IMAX, VOUT < 5V IOUT 10mA < IOUT < IMAX, VOUT > 5V
- 50 mV - 1.0 %
Thermal Regulation
IOUT = 1.5A, (VIN - VOUT) = 13.3V, 20ms Pulse, 20W, TC = +25°C
-
0.02 %/W
Ripple Rejection
VOUT = -10V, f = 120Hz, CADJ = 10µF
66 - dB
Adjustment Pin Current 4/
IADJ IOUT = 10mA, 3V < (VIN - VOUT) < 30V
- 100 µA
Adjustment Pin Current Change 4/
IADJ 3V < (VIN - VOUT) < 30V, 10mA < IOUT < IMAX
- 5 µA
Minimum Load Current 3/ 4/ IMIN
(VIN - VOUT) = 30V (VIN - VOUT) < 10V
-5 mA
-3
Current Limit 4/, 5/
IMAX
(VIN - VOUT) < 15V (VIN - VOUT) = 30V, TC = +25°C
1.5 0.24 -
A
Long Term Stability 3/
VOUT TIME
TC = +125°C
-1%
Thermal Resistance, each Regulator (Junction to Case) 3/
JC
- 5 °C/W
Notes: 1/ Unless otherwise specified, these specifications apply for, (Vin - Vout) = 5V, Iout = 0.5A and -55°C < Tc < +125°C. 2/ Regulation is measured at a constant junction temperature, using pulse testing with a low duty cycle. Changes in output voltage due to
heating effects are covered under the specification for thermal regulation. Measurements taken at the output lead must be adjusted for lead resistance. 3/ Not tested. Shall be guaranteed to the specified limits. 4/ Specification derated to reflect High Dose Rate (1019 condition A) to 100 krad(Si) and Low Dose Rate (1019 condition D) to 50 krad(Si),.