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ISL9444_1107 Datasheet(PDF) 5 Page - Intersil Corporation |
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ISL9444_1107 Datasheet(HTML) 5 Page - Intersil Corporation |
5 / 24 page Block Diagram PGOOD2 PGOOD1 PGOOD3 EN/SS1 EN2 VCC_5V EN3 PWM1 OC1 VCC_5V VCC_5V VCC_5V OCP OC2 CHANNEL 2 FB2 PWM2 OC3 OC2 OC1 PGND ERROR AMP 1 FB1 180kΩ + 0.7V 15pF 1000kΩ REF 16kΩ _ + ISEN2 OCSET2 2 CLOCK CYCLES SAME STATE FOR REQUIRED TO LATCH OVERCURRENT FAULT CHANNEL 3 PWM3 OC3 FB3 ISEN3 OCSET3 FB3 FB2 FB1 OV PHASE1 UGATE1 BOOT1 LGATE1 ADAPTIVE DEAD-TIME V/I SAMPLE TIMING VIN VCC_5V ADAPTIVE DEAD-TIME PHASE2 UGATE2 BOOT2 LGATE2 PGND V/I SAMPLE TIMING VCC_5V VCC_5V VCC_5V ISEN1 SAMPLE CURRENT SAMPLE CURRENT + 1.75V REFERENCE OCSET1 _ + _ + - + ADAPTIVE DEAD-TIME PHASE3 UGATE3 BOOT3 LGATE3 PGND V/I SAMPLE TIMING CHANNEL 1 POR FAULT LATCH REFERENCE ENABLE BIAS SUPPLIES EN/SS1 1.55µA EN/SS1 MINIMUM SOFT-START TK/SS3 TK/SS2 EXTBIAS SGND 0.7VREF _ + ERROR AMP 3 + 1.3V EN3 EN3 VIN SW THRES. + _ PFI + _ PFO PF REF DUTY CYCLE RAMP GENERATOR PWM CHANNEL PHASE CONTROL PG3_DLY 2µA PGND (see Note 6) |
Similar Part No. - ISL9444_1107 |
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Similar Description - ISL9444_1107 |
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