HR121-2805 INTERPOINT | Alldatasheet

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±12 ±15

DESCRIPTION

The HR120 Series™ of DC/DC converters offers up to 12 watts of power from single or dual outputs in a single package over a –40°C to +85°C temperature range. Thick film hybrid manufacturing tech- nology produces high levels of miniaturization, giving the HR120 Series converters a low profile (0.330 inch), small board area (1.65 square inches), and high power density (22 watt/in 3). The parts are packaged in sealed steel enclosures, making them ideal for use in high reliability applications. Each unit is guaranteed to pass a hermeticity test with a maximum leak rate of 0.001 atm- cc/sec. D ESIGN M ETHODOLOGY The HR120 converters are switching regulators which use a quasi- square wave, single ended forward converter design with a nominal switching frequency of 600 kHz. Isolation between input and output circuits is provided with a transformer in the forward power loop and a temperature insensitive optical link in the feedback control loop. Output regulation is accomplished with constant frequency pulse width modulation. Both line and load regulation are typically within 10 mV. On dual output models, the positive output is independently regu- lated and the negative output is cross-regulated. Figures 7 and 8 illustrate what effects load changes have on the negative output. Indefinite short circuit protection and overload protection are provided by sensing output load current and restricting the output current to approximately 125% of full load output current. Since the output current is sensed in the secondary stage, the result is a predictable, constant output current control with no foldback char- acteristics. HR120 converters are provided with internal filtering elements on both the input and output to help reduce the need for external components. W IDE VOLTAGE R ANGE The 5 and 12 volt output models provide full power operation over the input voltage range of 16 to 40 volts (19 to 40 volts for 15 volt output models). Operation below 16 volts (or below 19 volts for the 15 volt output models), including operation in MIL-STD-704E emer- gency power conditions, is possible with derated output power. Please refer to the low voltage drop-out graphs, Figures 9 and 10. The HR120 Series provides full power operation at case tempera- tures from –40°C up to +85°C. Depending on operating levels, air flow, and ambient temperature, heat sinking may be required. INHIBIT FEATURE An inhibit terminal is provided that can be used to disable internal switching, resulting in a very low quiescent input current. An open collector TTL compatible low (≤0.8 V) is required to control the inhibit function. This level may be supplied by an open collector gate since the inhibit pin is provided with an internal pull-up resistor. DC/DC C ONVERTERS

28 VOLT INPUT

12 W ATT

FEATURES

  • –40°C to +85°C operation
  • 16 to 40 VDC input (19 to 40 VDC input for 15 volt output models)
  • Fully Isolated
  • Optocoupler feedback
  • 600 kHz typical operating frequency
  • Topology – Single Ended Forward
  • 50 V for up to 50 ms transient protection
  • Inhibit function
  • Indefinite short circuit protection
  • Up to 83% efficiency See Section B8, case E1 for dimensions. Weight: 21 grams typical. Screening: Standard only. See Section C2 for screening description.

RECOMMENDED OPERATING CONDITIONS TYPICAL CHARACTERISTICSINHIBITABSOLUTE MAXIMUM RATINGS Input Voltage

  • 16 to 40 VDC
  • 19 to 40 VDC 15 volt outputs Output Power
  • 12 watts (10 watts HR121-2805) Lead Soldering Temperature (10 sec per pin)
  • 300°C Storage Temperature Range (Case)
  • –55°C to +125°C B4-48 HR120 SERIES

Output Voltage Temperature Coefficient

  • 150 ppm/°C, typical Input to Output Capacitance
  • 50 pF, typical Current Limit
  • 125% of full load, typical Isolation
  • 100 megohm minimum at 500 V Conversion Frequency
  • 600 kHz typical Inhibit Pin Voltage (unit enabled)
  • 8 to 11 V Input Voltage Range
  • 16 to 40 VDC continuous
  • 19 to 40 VDC continuous 15 volt outputs
  • 50 V for 50 msec transient Case Operating Temperature (Tc)
  • –40°C to +85°C full power Inhibit TTL Open Collector
  • Logic low (output disabled) Logic low 0.8 V max Inhibit pin current 4 mA max
  • Referenced to input common
  • Logic high (output enabled) Open collector Electrical Characteristics: 25°C Tc, 28 VDC Vin, 100% load, unless otherwise specified. SINGLE OUTPUT MODELS HR121-2805 HR121-2812 HR121-2815 PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX MIN TYP MAX UNITS OUTPUT CURRENT — — 2.0 — — 1.0 — — 0.8 A OUTPUT POWER MIN. TO MAX. V IN — — 10 — — 12 — — 12 W OUTPUT RIPPLE 10 kHz to 2 MHz — 40 60 — 30 60 — 25 50 mV p-p LINE REGULATION MIN. TO MAX. V IN — 10 50 — 10 50 — 10 50 mV LOAD REGULATION NO LOAD TO FULL — 10 50 — 10 50 — 10 50 mV INPUT VOLTAGE NO LOAD TO FULL 16 28 40 16 28 40 19 28 40 VDC TRANSIENT 50 ms — — 50 — — 50 — — 50 INPUT CURRENT NO LOAD — 20 30 — 20 30 — 20 30 FULL LOAD — — 478 — — 548 — — 535 mA INHIBITED — 2 3 — 2 3 — 2 3 INPUT RIPPLE CURRENT 10 kHz TO 2 MHz — 135 180 — 150 200 — 150 220 mA p-p EFFICIENCY 74 77 — 77 81 — 80 83 — % LOAD FAULT

1 POWER DISSIPATION

W SHORT CIRCUIT — – 3.5 — — 2.8 — — 2 START-UP DELAY — 180 300 — 80 200 — 150 250 ms Notes 1. Indefinite short circuit protection not guaranteed above 85°C case temperature.

(1 = single, 2 = dual) B4-49 HR120 SERIES DUAL OUTPUT MODELS HR122-2812 HR122-2815 PARAMETER CONDITION MIN TYP MAX MIN TYP MAX UNITS VDC OUTPUT CURRENT 1, 2 — 0.5 1.0 — 0.4 0.8 A OUTPUT POWER 2 +V OUT — — 10.8 — — 10.8 TOTAL — — 12 — — 12 OUTPUT RIPPLE VOLTAGE 10 kHz TO 2 MHz — 30 60 — 30 60 mV p-p LINE REGULATION +V OUT — 5 50 — 5 50 mV MIN. TO MAX. VIN – VOUT — 30 150 — 30 150 LOAD REGULATION +V OUT — 5 50 — 10 50 mV NO LOAD TO FULL – V OUT — 30 150 — 30 150 CROSS REGULATION 20% TO 80% LOAD 3 — 5 10 — 4 8 50% LOAD 4 —4 5— 3 5 INPUT VOLTAGE CONTINUOUS 16 28 40 19 28 40 VDC TRANSIENT 50 ms — — 50 — — 50 INPUT CURRENT NO LOAD — 25 35 — 25 35 FULL LOAD — — 545 — — 540 mA INHIBITED — 1.9 3 — 1.9 3 INPUT RIPPLE CURRENT 10 kHz TO 2 MHz — 175 240 — 175 240 mA p-p EFFICIENCY 78 81 — 80 83 — % LOAD FAULT

5 POWER DISSIPATION

OVERLOAD — — 2.8 — — 2 W SHORT CIRCUIT — — 5 — — 5 START-UP DELAY — 150 250 — 150 250 ms Notes 1. Applies to both outputs. 2. Maximum combined output power is 12 watts. A maximum of 90% is available from either output. 3. 20% to 80% load on the positive output and 80% to 20% on the negative output. See Figure 8. 4. 50% load on the positive output and 50% to 20% load on the negative output. 50% load on the negative output and 50% to 20% load on the positive output. See Figure 7. 5. Indefinite short circuit protection not guaranteed above 85°C case temperature. Electrical Characteristics: 25°C Tc, 28 VDC Vin, 100% load, unless otherwise specified. MODEL NUMBER KEY PIN OUT Pin Single Output Dual Output

1 Inhibit Inhibit

2 No connection Positive Output

3 Output Common Output Common

4 Positive Output Negative Output

5 No connection No connection

6 Case Ground Case Ground

7 Input Common Input Common

8 Positive Input Positive Input

top of cover indicate pin one. 1 2345 87 6 FIGURE 1: PIN O UT See Section B8, case E1, for dimensions

Typical Performance Curves: 25°C Tc , 28 VDC Vin, 100% load, unless otherwise specified. FIGURE 5 FIGURE 7 Output Power (Watts) HR122-2812 Efficiency Efficiency (%) 2 4 6 8 10 12 16V 40V 28V Output Power (Watts) HR121-2805 Efficiency Efficiency (%) 2468 1 0 1 2 28V 40V 16V FIGURE 2 Output Power (Watts) HR121-2812 Efficiency Efficiency (%) 2 4 68 10 12 16V 40V 28V FIGURE 3 Output Power (Watts) HR122-2815 Efficiency Efficiency (%) 2 4 6 8 10 12 19V 40V 28V FIGURE 6 FIGURE 4 Output Power (Watts) HR121-2815 Efficiency Efficiency (%) 2 4 6 8 10 12 19V 40V 28V Output Load (%) Positive Output 20% to 80% Load Negative Output 80% to 20% Load HR122 Negative Output Voltage Cross Regulation Negative Output Voltage Change (%)–200 2 04 06 08 0 100 –10 –15 2812 2815 FIGURE 8 Output Power (Watts) 50 mV Drop HR121 Low Line Dropout Input Voltage (Volts) 112468 1 0 1 2 14 2812 2815 2805 FIGURE 9F IGURE 10 Output Power (Watts) 50 mV Drop HR122 Low Line Dropout Input Voltage (Volts) 112468 1 0 1 2 14 2812 2815 Output Load (%) Condition A: 50% Load Pos. Vout, 50% to 20% Neg. Vout Condition B: 50% Load Neg. Vout, 50% to 20% Pos. Vout HR122 Negative Output Voltage Cross Regulation Negative Output Voltage Change (%)–1001 023 0 4 0 50 2815 2812 Cond. B Cond. A2812 21821-009-DTS Rev A DQ# 2011 All technical information is believed to be accurate, but no responsibility is assumed for errors or omissions. Interpoint reserves the right to make changes in products or specifications without notice. HR120 Series is a trademark of Interpoint. Copyright © 1994 - 1999 Interpoint. All rights reserved.

TEST (HR products) STANDARD PRE-CAP INSPECTION Method 2017 yes FINAL ELECTRICAL TEST MIL-PRF-38534, Group A Subgroups 1 and 4: +25°C case yes HERMETICITY TESTING Gross Leak, Dip (1 x 10-3) yes FINAL VISUAL INSPECTION Method 2009 yes Test methods are referenced to MIL-STD-883 as determined by MIL- PRF-38534. HR700 Series HR300 Series HR150 Series HR120 Series HR40 Series Applies to the following products: