SRSB-50T03C BEL [Bel Fuse Inc.], SRSB-50T03C Datasheet
SRSB-50T03C
Related parts for SRSB-50T03C
SRSB-50T03C Summary of contents
Page 1
ISOLATED DC/DC CONVERTERS 36 Vdc - 75 Vdc Input, Jul. 09, 2010 xRSB-50T03C RoHS Compliant Features • Isolated • High Efficiency • Fixed Frequency (600 kHz) • High Power Density • Input Under Voltage Lockout • Low Cost • Positive/Negative ...
Page 2
ISOLATED DC/DC CONVERTERS 36 Vdc - 75 Vdc Input, Jul. 09, 2010 Absolute Maximum Ratings Parameter Continuous non-operating Input Voltage Input Transient Voltage Remote On/Off I/O Isolation Voltage Ambient Temperature Storage Temperature Note: Ratings used beyond the maximum ratings may ...
Page 3
... Vin=48Vdc, Ta=25°C, 200 uS with a 1µF ceramic capacitor and 250 mV the minimum external cap at output 200 uS Unit - % V =48 V, full load kHz ℃ Calculated Per Bell Core SR-332 - (Vin=48V, Vo=3.3V, Io=80%load °C, FIT=10 - 0RSB-50T03C - SRSB-50T03C V - Ohm - pF www.belfuse.com Notes Notes a 9 /MTBF) 3 ...
Page 4
ISOLATED DC/DC CONVERTERS 36 Vdc - 75 Vdc Input, Jul. 09, 2010 Efficiency Data 90.00% 85.00% 80.00% 75.00% 70.00% 65.00% 60.00% 55.00% 50.00% Thermal Derating Curve Maximum junction temperature of semiconductors derated to 120 degree C. Bel Fuse Inc. 206 ...
Page 5
ISOLATED DC/DC CONVERTERS 36 Vdc - 75 Vdc Input, Jul. 09, 2010 Thermal Derating Curve (continued) Temperature reference points on top side Ripple and Noise Waveform Note: Ripple and noise at full load, and with a 1uF ceramic cap and ...
Page 6
ISOLATED DC/DC CONVERTERS 36 Vdc - 75 Vdc Input, Jul. 09, 2010 Transient Response Waveforms 50%-75% Load Transients at Vin=48 V Note: Transient response at di/dt=0.1A/us, with 1uF ceramic cap and 3000uF cap at output, and Ta=25 deg C. Remote ...
Page 7
ISOLATED DC/DC CONVERTERS 36 Vdc - 75 Vdc Input, Jul. 09, 2010 Output Trim Equations Equations for calculating the trim resistor are shown below. The Trim Down resistor should be connected between the Trim pin and GND pin. The Trim ...
Page 8
ISOLATED DC/DC CONVERTERS 36 Vdc - 75 Vdc Input, Jul. 09, 2010 Remote Sense This module has remote sense compensation feature. It can minimize the effects of resistance between module’s output and load in system layout and facilitates accurate voltage ...
Page 9
ISOLATED DC/DC CONVERTERS 36 Vdc - 75 Vdc Input, Jul. 09, 2010 Startup & Shutdown Rise time Startup time Startup from Vin Ch1: Vo, Ch2: Vin Test Condition: 48Vin, 3.3V/15A Shutdown Bel Fuse Inc. 206 Van Vorst Street, Jersey City, ...
Page 10
ISOLATED DC/DC CONVERTERS 36 Vdc - 75 Vdc Input, Jul. 09, 2010 Over Current Protection To provide protection in a fault output overload condition, the module is equipped with internal current-limiting circuitry and can endure current limiting for a few ...
Page 11
ISOLATED DC/DC CONVERTERS 36 Vdc - 75 Vdc Input, Jul. 09, 2010 Over Voltage Protection The output overvoltage protection consists of circuitry that monitors the voltage on the output terminals. If the voltage on the output terminals exceeds the over ...
Page 12
ISOLATED DC/DC CONVERTERS 36 Vdc - 75 Vdc Input, Jul. 09, 2010 Over Temperature Protection The OTP is achieved by thermistor U1 and the threshold is set at 120C in non-latch mode; the hottest component Q5 reaches 130C with 100LFM ...
Page 13
ISOLATED DC/DC CONVERTERS 36 Vdc - 75 Vdc Input, Jul. 09, 2010 Mechanical Outline 0RSB-50T03C Note: This module is recommended and compatible with Pb-Free Wave Soldering and must be soldered using a peak solder temperature of no more than 260 ...
Page 14
... ISOLATED DC/DC CONVERTERS 36 Vdc - 75 Vdc Input, Jul. 09, 2010 Mechanical Outline (continued) SRSB-50T03C Note: This module is recommended and compatible with Pb-Free Reflow Soldering and must be soldered using a reflow profile with a peak temperature of no more than 260ºC for less than 5 seconds. Note: 1) All Pins: Material - Copper Alloy; ...
Page 15
ISOLATED DC/DC CONVERTERS 36 Vdc - 75 Vdc Input, 3.3 Vdc/15 A Output Jul. 09, 2010 Revision History Date Version 2010-3-23 A First release 2010-7-9 B Update the Outline drawing of 0RSB-50T03C RoHS Compliance Complies with the European Directive 2002/95/EC, ...