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CS5124 Datasheet(PDF) 1 Page - Cherry Semiconductor Corporation |
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CS5124 Datasheet(HTML) 1 Page - Cherry Semiconductor Corporation |
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1 / 10 page  V CC BIAS UVLO SS Gnd GATE IS V FB R8 0.39Ω Q2 IRFR220 R5 17.4k C2 1.5µF, 100V C1 0.1µF, 100V R2 200k 10µH 36-75VIN L1 R1 510k Q1 ZVN3310A T1 D1 MBRD360CT R3 47Ω R6 1k C3 .022µF C6 .01µF R7 30.1k C5 47µF, 10V ISOLATED RTN 5VOUT ENABLE 48VRTN D4 R4 10Ω BAS16LT1 C4 0.47µF, 25V C8 1000pF C7 0.1µF TPS5908 U2 R9 10.0k C9 1000pF CS5124 CTX15-14514 Features s Line UVLO Monitoring s Low Current Sense Voltage for Resistive Current Sensing s External Synchronization to Higher or Lower Frequency Oscillator (CS5126 Only) s Bias for Start up Circuitry (CS5124 Only) s Thermal Shutdown s Sleep On/Off Pin s Soft Start Timer s Leading Edge Blanking s Direct Optocoupler Interface s 90ns Propagation Delay s 35ns Driver Rise and Fall Times s Sleep Mode Package Options High Performance, Integrated Current Mode PWM Controllers CS5124/6 Description Applications Diagram 8 Lead SO Narrow 1 1 VCC BIAS UVLO SS Gnd GATE ISENSE VFB 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 A Company ® Rev. 3/12/99 Gnd UVLO 1 VCC SYNC SS GATE ISENSE VFB CS5124 CS5126 48V to 5V, 1A flyback converter using the CS5124 The CS5124/6 is a fixed frequency current mode controller designed specifically for DC-DC converters found in the telecommunications industry. The CS5124/6 integrates many commonly required current mode power supply features and allows the power supply designer to realize substantial cost and board space savings. The product matrix is as follows: CS5124: 400kHz w/VBIAS Pin, 195mV first current sense threshold CS5126: 200kHz w/SYNC Pin, 335mV first current sense threshold The CS5124/6 integrates the follow- ing features: Internal Oscillator, Slope Compensation, Sleep On/Off, Under Voltage Lock Out, Thermal Shutdown, Soft Start Timer, Low Voltage Current Sense for Resistive Sensing, Second Current Threshold for Pulse by Pulse Over Current Protection, a Direct Optocoupler Interface and Leading Edge Current Blanking. The CS5124/6 has supply range of 7.7V to 20V and is available in 8 pin SO narrow package. |
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Similar Description - CS5124 |
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