PRELIMINARY Isolated DC-DC Converters BYB100-48S2 Bothhand USA Features Wide 2 : 1 Input Voltage Range High Power Density High Efficiency Operating Temperature Range: -40°C to +85°C (with derating) Output Short Circuit Protection: Hiccup, continuous & Auto Recovery Output Over Voltage Protection Over Temperature Protection Fixed Switching Frequency Input/ Output Isolation 1500VDC Lead Free Design, RoHS Compliant Industry Standard Pinout Adjustable Output Voltage Applications Distributed power system Telecommunication application Battery powered equipment Industrial application Process control equipment Transportation equipment Input Specifications Input voltage range 36~75V Converter: ON Open or 3.5V＜Vr＜12V Converter: OFF Short(2) or 0V＜Vr＜1.2V Sourcing current of remote control pin Nominal Vin ＜0.2mA Idle input current (at Remote OFF state) Nominal Vin ＜20mA Remote ON/OFF Output Specifications Output voltage Output voltage accuracy 12V Vout=11.88 ~ 12.12V ±1% Maximum Load 8.33A Minimum Load 0A Maximum capacitive load Efficiency Vin=48V and full load Ripple / Noise 20MHz bandwidth. ±0.02%/℃ (maximum) Temperature coefficient Output short circuit protection 100mVp-p (maximum) Automatic recovery Output over voltage protection Hiccup, Continuous 15V (typical) General Specifications Reliability, calculated MTBF Operating ambient temperature [email protected] With derating www.bothhandusa.com -40℃~+85℃ Rev:20120801A Page 1 of 3 PRELIMINARY Isolated DC-DC Converters BYB100-48S2 Bothhand USA Maximum case surface temperature 105℃ Thermal shutdown 110°C typ. Storage temperature range -55℃~+125 ℃ Relative humidity 95% RH (maximum) Isolation voltage Input to output 1500VDC Isolation capacitance Input to output 1200pF (typical) Isolation resistance Input to output (500VDC) 10 Ω (minimum) Cooling Natural convection 9 Physical Specifications Case material Aluminum Potting material Silicon rubber (UL94V-0) 2.40 × 2.28 × 0.5 Inch Dimensions (61.0 × 57.9 × 12.7 mm) Weight 97g (3.42oz) (typical) Soldering temperature 260℃/10Sec (maximum) Lead-free wave soldering Note 1. Typical value, tested at nominal input and full load. 2. Short to -Vin (Pin 2). Remote Sense Application circuit The Remote Sense function is used to compensate for the voltage drop incurred when the load is located physically far away from the DC/DC converter providing its power. The Remote Sense pins are connected as close to the load as possible. The DC/DC converter’s regulation specification is maintained across the points where the Remote Sense wires are connected at the load. This will remove the effect of the voltage drop caused by the resistance of the wires used to conduct the power from the DC/DC converter to the load. This is represented by RCL1 and RCL2. With the use of Remote Sense, the effects of RCL1 and RCL2 are eliminated. If the Remote Sense function is not used, the +Sense has to be connected to +Vout and the –Sense has to be connected to –Vout as close to the DC/DC converter as possible. RCL1 +Vout +Vin +Sense Load -Vin -Sense -Vout RCL1 and RCL2 are line resisters [email protected] www.bothhandusa.com RCL2 Rev:20120801A Page 2 of 3 PRELIMINARY Isolated DC-DC Converters BYB100-48S2 Bothhand USA Mechanical Dimensions Pin Assignment Pin Single 1 -Vin 2 Case Remote On/Off 3 4 +Vin 5 -Vout 6 -Sense 7 Trim 8 +Sense 9 +Vout 4-M3x0.5 (Through hole) 1 2 5 Bottom view 6 7 3 8 4 9 Pin 5&9 diameter: 2.0 [0.08] Other pins diameter: 1.0 [0.04] Unit: mm [inch] Tolerance: ±0.5 [0.02] [email protected] www.bothhandusa.com Rev:20120801A Page 3 of 3