|Category||Power Management => DC-DC Converters|
|Description||28V/100W DC/DC Converter Vin=16-50V, Vo= 12V@8.3A W/emi Filter|
|Datasheet||Download ADDC02812DA datasheet
FEATURES V dc Input, 100 W Output V dc Input, 100 W Output (ADDC02815DA) Integral EMI Filter Designed to Meet MIL-STD-461D Low Weight: 80 Grams NAVMAT Derated Many Protection and System Features APPLICATIONS Commercial and Military Airborne Electronics Missile Electronics Space-Based Antennae and Vehicles Mobile/Portable Ground Equipment
SENSE +SENSE ADJUST STATUS VOUT VAUX INHIBIT SYNC ISHARE TEMP VIN +VIN INPUT SIDE CONTROL CIRCUIT FIXED FREQUENCY DUAL INTERLEAVED POWER TRAIN VOUT OUTPUT FILTER VCOM +VOUT OUTPUT SIDE CONTROL CIRCUIT
The ADDC02812DA and ADDC02815DA hybrid military dc/ dc converters with integral EMI filter offer the highest power density of any dc/dc power converters with their features and in their power range available today. The converters with integral EMI filter are a fixed frequency, 1 MHz, square wave switching dc/dc power supply. They are not variable frequency resonant converters. In addition to many protection features, these converters have system level features that allow them to be used as a component in larger systems as well as a stand-alone power supply. The units are designed for high reliability and high performance applications where saving space and/or weight are critical. The ADDC02812DA and ADDC02815DA are available in a hermetically sealed, molybdenum based hybrid package and are easily heatsink mountable. Three screening levels are available, including military SMD.
1. 60 W/cubic inch power density with an integral EMI filter designed to meet all applicable requirements in MIL-STD461D when installed in a typical system setup 2. Light weight: 80 grams 3. Operational and survivable over a wide range of input conditions: V50 V dc; survives low line, high line, and positive and negative transients 4. High reliability; NAVMAT derated 5. Protection features include: Output Overvoltage Protection Output Short Circuit Current Protection Thermal Monitor/Shutdown Input Overvoltage Shutdown Input Transient Protection 6. System level features include: Current Sharing for Parallel Operation Inhibit Control Output Status Signal Synchronization for Multiple Units Input Referenced Auxiliary Voltage
Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781/329-4700 World Wide Web Site: http://www.analog.com Fax: 781/326-8703 © Analog Devices, Inc., 1997
Parameter INPUT CHARACTERISTICS Steady State Operating Input Voltage (12 V) Steady State Operating Input Voltage (15 V) Abnormal Operating Input Voltage Range (per (12 V) Abnormal Operating Input Voltage Range (per (15 V) Input Voltage Shutdown V) No Load Input Current V/15 V) Disabled Input Current V/15 V) OUTPUT 3, 4 Regulated Output Voltage (+12 V) Case Temp
(TC = 25C, VIN V dc unless otherwise noted; full temperature range to +90C; all temperatures are case and TC is the temperature measured at the center of the package bottom.)
Line Regulation (12 V) Line Regulation (15 V) Load Regulation (12 V) Load Regulation (15 V) Output Ripple/Noise (Regulated +12 V)5 (Cross Regulated 12 V)5 Output Ripple/Noise (Regulated +15 V)5 (Cross Regulated 15 V)5 Total Output Current (IO) 12 V Total Output Current (IO) 15 V Output Overvoltage Protection (12 V) Output Overvoltage Protection (15 V) Output Current Limit V/15 V) Output Short Circuit Current V/15 V) ISOLATION CHARACTERISTICS Isolation Voltage
4.17 A, VIN 4.17 A, VIN 4.17 A, VIN 3.34 A, VIN 3.34 A, VIN 3.34 A, VIN 4.17 A, VIN 4.17 A, VIN 4.17 A, VIN 3.34 A, VIN 3.34 A, VIN 3.34 A, VIN 4.17 A, VIN 3.34 A, VIN V dc VIN 28 V dc, +4.17 A VIN 28 V dc, A, 5 kHz 2 MHz A, 5 kHz 2 MHz 12 V dc, VIN 15 V dc, VIN 4.17 A, Open Remote Sense Connection 3.34 A, Open Remote Sense Connection = 90% VOUT Nom
Parameter DYNAMIC CHARACTERISTICS Output Voltage Deviation Due to Step Change in Load (12 V) Output Voltage Deviation Due to Step Change in Load (15 V) Response Time Due to Step Change in Load (12 V)
Test Level Conditions 2.08 A di/dt = 0.5 A/µs, Measured to Within 2% of Final Value 1.67 A, di/dt = 0.5 A/µs, Measured to Within 2% of Final Value 4.17 A, from Inhibit High to Status High 3.34 A, from Inhibit High to Status High 0.34 A
Soft Start Turn-On Time (12 V) Soft Start Turn-On Time (15 V) THERMAL CHARACTERISTICS Efficiency (12 V)
Hottest Junction (12 V) Hottest Junction (15 V) CONTROL CHARACTERISTICS Clock Frequency (12 V) Clock Frequency (15 V) Adjust (Pin 3) VADJ (12 V) Adjust (Pin 3) VADJ (15 V) Status (Pin 4) VOH VOL VAUX (Pin 5) VO (nom) (12 V) VAUX (Pin 5) VO (nom) (15 V) Inhibit (Pin 6) VIL IIL VI (Open Circuit) SYNC (Pin 7)8 VIH IIH ISHARE (Pin (12 V) ISHARE (Pin (15 V) Temp (Pin 9)IOH 400 µA IOL 1 mA IAUX = 5 mA, Load Current 4.17 A IAUX = 5 mA, Load Current 3.34 A
NOTES 1 Military subgroups apply only to military qualified devices. V dc upper limit rated for transient condition to 50 ms. V dc lower limit rated for continuous operation during emergency condition. Steady state and abnormal input voltage range require source impedance sufficient to insure input stability at low line. See sections entitled System Instability Considerations and Input Voltage Range. 3 Measured at the remote sense points. 4 Output characteristics tested with balanced loads on each output; however, unit operates with unbalanced loads to 90%/10% split. 5 Regulated output typically performs with less ripple than cross regulated output. 100% test is performed with VD+ regulated and VD cross regulated. 6 CLOAD 0. 7 Refer to section entitled Thermal Characteristics for more information. 8 Unit has internal pull-down; refer to section entitled Pin 7 (SYNC). Specifications subject to change without notice.
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