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The CS5101 is a bipolar monolithic secondary side post regulator (SSPR) which provides tight regulation of multiple output voltages in AC-DC or DC-DC converters. Leading edge pulse width modulation is used with the CS5101.
The CS5101 is designed to operate over an 8V to 45V supply voltage (VCC) range and up to a 75V drive voltage (VC).
The CS5101 features include a totem pole output with 1.5A peak output current capability, externally programmable overcurrent protection, an on chip 2% precision 5V reference, internally compensated error amplifier, externally synchronized switching frequency, and a power switch drain voltage monitor. It is available in a 14 lead plastic DIP or a 16 lead wide body SO package.
CS5101 Maximum Ratings
Power Supply Voltage, VCC .................................................................................................................-0.3V to 45V VSYNC and Output Supply Voltages, VC, VG, VSYNC, VD.........................................................................-0.3V to 75V VIS+, VIS- (VCC Ð 4V, up to 24V)............................................................................................................-0.3 to 24V VREF, VFB, VCOMP, VRAMP, VISCOMP.........................................................................................................-0.3 to 10V Operating Junction Temperature, TJ ....................................................................................................-40 to 150 Operating Temperature Range ..............................................................................................................-40 to 85 Storage Temperature Range ...............................................................................................................-65 to 150 Output Energy (capacitive load per cycle)..........................................................................................................5µJ ESD Human Body ..............................................................................................................................................2kV ESD Machine Model..........................................................................................................................................200V Lead Temperature Soldering Wave Solder (through hole styles only)...............................10 sec. max, 260 peak Reflow (SMD styles only)...............................................................................60 sec. max above 183, 230 peak
CS5101 Features
·1.5A Peak Output (Grounded Totem Pole) ·8V to 75V Gate Drive Voltage ·8V to 45V Supply Voltage ·300ns Propagation Delay ·1% Error Amplifier Reference Voltage ·Lossless Turn On and Turn Off ·Sleep Mode: < 100µA ·Overcurrent Protection with Dedicated Differential Amp ·Synchronization to External Clock ·External Power Switch Drain Voltage Monitor