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CS5101

Cherry Semiconductor Corporation
Part Number CS5101
Manufacturer Cherry Semiconductor Corporation
Description Secondary Side Post Regulator
Published Mar 24, 2005
Detailed Description CS5101 CS5101 Secondary Side Post Regulator for AC/DC and DC/DC Multiple Output Converters Description The CS5101 is a ...
Datasheet PDF File CS5101 PDF File

CS5101
CS5101

Overview
CS5101 CS5101 Secondary Side Post Regulator for AC/DC and DC/DC Multiple Output Converters 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.
Features s 1.
5A Peak Output (Grounded Totem Pole) s 8V to 75V Gate Drive Voltage s 8V to 45V Supply Voltage s 300ns Propagation Delay s 1% Error Amplifier Reference Voltage s Lossless Turn On and Turn Off s Sleep Mode: < 100µA s Overcurrent Protection with Dedicated Differential Amp s Synchronization to External Clock s External Power Switch Drain Voltage Monitor Application Diagram VSY L1 1 TR CR4 3 Q1 4 5 R10 VOUT 6 R5 R6 CR5 R8 R11 R13 + C6 Package Options 14L PDIP SYNC 1 R9 R12 R14 VD VC VG PGnd IS COMP ISIS+ Gnd CR1 C5 + VCC VREF LGnd R1 R2 CR3 R7 VFB COMP VSYNC VCC R3 CR2 VREF LGnd VFB + C1 C2 R4 COMP RAMP VD RAMP CS5101 SSPR VC VG C4 16L SO Wide SYNC VCC VREF DGnd 1 PGnd IS COMP ISIS+ VD VC VG PGnd PGnd IS COMP ISIS+ 2 C3 CR AGnd VFB COMP RAMP Cherry Semiconductor Corporation 2000 South County Trail, East Greenwich, RI 02818 Tel: (401)885-3600 Fax: (401)885-5786 Email: info@cherry-semi.
com Web Site: www.
cherry-semi.
com Rev.
3/31/97 1 A ¨ Company CS5101 Absolute Maximum Ratings Power Supply Voltage, VCC .
.
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