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


Pinout




Specifications

Power Supply Voltage, V_CC .................................................................................................................-0.3V to 45V
V_SYNC and Output Supply Voltages, V_C, V_G, V_SYNC, V_D.........................................................................-0.3V to 75V
V_IS+, V_IS- (V_CC Ð 4V, up to 24V)............................................................................................................-0.3 to 24V
V_REF, V_FB, V_COMP, V_RAMP, V_ISCOMP.........................................................................................................-0.3 to 10V
Operating Junction Temperature, T_J ....................................................................................................-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


Description

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.