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IR3522 Datasheet(PDF) 6 Page - International Rectifier |
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IR3522 Datasheet(HTML) 6 Page - International Rectifier |
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6 / 32 page  IR3522 Page 6 V3.01 PARAMETER TEST CONDITION MIN TYP MAX UNIT Soft Start and Soft Stop Start Delay Measure Enable to EAOUT1 activation 1 2.9 3.5 ms Start-up Time Measure Enable activation to PGOOD 3 8 13 ms SS/DEL1 to FB1 Input Offset Voltage With FB1 = 0V, adjust V(SS/DEL1) until EAOUT1 drives high 0.7 1.4 1.9 V Charge Current -20 -45 -90 µA Soft Stop Discharge Currents 25 55 105 µA Charge Voltage 3.7 4 4.2 V Discharge Comp. Threshold 150 220 300 mV Delay Comparator Threshold Relative to Charge Voltage, SS/DELx rising Note 1 80 mV Delay Comparator Threshold Relative to Charge Voltage, SS/DELx falling Note 1 120 mV Delay Comparator Hysteresis Note 1 40 mV IINx Bias Current -1 0 1 uA SRD Comp. Rise Threshold 330 390 440 mV SRD Comp. Fall Threshold 310 360 425 mV SRD Comp Hysteresis 15 30 50 mV IIN1 High Voltage Measure V(VCCL)-V(IIN1) 0 1.2 V Error Amplifiers VOUT1 System Set-Point Accuracy (Deviation from Table 2 and per test circuit in Figures 2A) -0.5 0.5 % VOUT2 Tracking Accuracy (Deviation from Table 2, and 3 per test circuit in Figures 2B) -1.0 1.0 % Input Offset Voltage Measure V(FB1) – V(VREF1). Measure V(FB2) – V(VOUT1)/2. Note 2 -1 0 1 mV FB1, FB2 Bias Currents -1 0 1 µA DC Gain Note 1 100 110 135 dB Bandwidth Note 1 20 30 40 MHz Slew Rate Note 1 5.5 12 20 V/µs Sink Current 0.4 0.85 1.2 mA Source Current 5.0 8.5 12.0 mA Maximum Voltage Measure V(VCCL) – V(EAOUTx) 500 780 950 mV Minimum Voltage 120 250 mV Open Control Loop Detection Threshold Measure V(VCCL) - V(EAOUTx), Relative to Error Amplifier maximum voltage. 125 300 600 mV Open Control Loop Detection Delay Measure PHSOUT pulse numbers from V(EAOUTx)=V(VCCL) to PGOOD = low. 8 Pulses FB2 Activation Voltage With FB2 grounded, V(VOUT1)/2 when EAOUT2 drives high 40 70 100 mV VREF1 Reference Source and Sink Currents Includes I(OCSET1) and I(OCSET2) -8% 2000*Vrosc(V) / ROSC(k ) +8% µA POWER GOOD (PGOOD) Output Under Voltage Threshold - Voutx Decreasing VOUT1 referenced to VREF1 VOUT2 referenced to VOUT1/2 -365 -315 -265 mV Under Voltage Threshold - Voutx Increasing VOUT1 referenced to VREF1 VOUT2 referenced to VOUT1/2 -325 -275 -225 mV Under Voltage Threshold Hysteresis 5 53 110 mV Output Voltage I(PGOOD) = 3mA 150 300 mV Leakage Current V( PGOOD ) = 5.5V 0 10 µA PGBIAS Activation Threshold I( PGOOD )=2mA, V(PGOOD) = 300mV 2 3.5 V PGBIAS Clamp Voltage I(PGBIAS) = 100uA 3 4.5 6.5 V I(PGBIAS)max 100 uA |
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