Features: • 75 mA Max. Startup Current• Fixed Frequency Current Mode Control• 1.0 MHz Switching Frequency• Undervoltage Protection Monitor• Overvoltage Protection Monitor with Programmable Hysteresis• Programmable Dual Threshold Overcurrent Protection with Delay...
CS51023A: Features: • 75 mA Max. Startup Current• Fixed Frequency Current Mode Control• 1.0 MHz Switching Frequency• Undervoltage Protection Monitor• Overvoltage Protection Monit...
SeekIC Buyer Protection PLUS - newly updated for 2013!
268 Transactions
All payment methods are secure and covered by SeekIC Buyer Protection PLUS.
Rating |
Value |
Unit |
Power Supply Voltage, VCC |
0.3, 20 |
V |
Driver Supply Voltage, VC |
0.3, 20 |
V |
SYNC, SLEEP, RTCT, SOFT START, VFB, SLOPE, ISENSE, UV, OV, ISET (Logic Pins) |
0.25 to VREF |
V |
Peak GATE Output Current |
1.0 |
A |
Steady State Output Current |
±0.2 |
A |
Operating Junction Temperature, TJ |
150 |
°C |
Storage Temperature Range, TS |
65 to +150 |
°C |
ESD (Human Body Model) |
2.0 |
KV |
Lead Temperature Soldering:Reflow:(SMD styles only)(Note1) |
230 peak |
°C |
The CS51021A/2A/3A/4A Fixed Frequency PWM Current Mode Controller family provides all necessary features required for ACDC or DCDC primary side control. Several features are included eliminating the additional components needed to implement them externally. In addition to low startup current (75 mA) and high frequency operation capability, the CS51021A/2A/3A/4A family includes overvoltage and undervoltage monitoring, externally programmable dual threshold overcurrent protection, current sense leading edge blanking, current slope compensation, accurate duty cycle control and an externally available 5.0 V reference. The CS51021A and CS51023A feature bidirectional synchronization capability, while the CS51022A and CS51024A offer a sleep mode with 100 mA maximum IC current consumption. The CS51021A/2A/3A/4A family is available in a 16 lead narrow body SO package.