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IR3502A Datasheet(PDF) 6 Page - International Rectifier |
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IR3502A Datasheet(HTML) 6 Page - International Rectifier |
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6 / 38 page  IR3502A Page 6 of 38 December 17, 2009 PARAMETER TEST CONDITION MIN TYP MAX UNIT Minimum Voltage 120 250 mV Open Voltage Loop Detection Threshold Measure V(VCCL) - V(EAOUT), Relative to Error Amplifier maximum voltage. 125 300 600 mV Open Voltage Loop Detection Delay Measure PHSOUT pulse numbers from V(EAOUT) = V(VCCL) to PGOOD = low. 8 Pulses Enable Input VR 11 Threshold Voltage ENABLE rising 825 850 875 mV VR 11 Threshold Voltage ENABLE falling 775 800 825 mV VR 11 Hysteresis 25 50 75 mV Bias Current 0V ≤ V(ENABLE) ≤ 3.3V -5 0 5 A Blanking Time Noise Pulse < 100ns will not register an ENABLE state change. Note 1 75 250 400 ns Over-Current Comparator Input Offset Voltage 1V ≤ V(IIN) ≤ 3.3V -40 -25 -10 mV Input Filter Time Constant 2 S Over-Current Threshold VDRP-VDAC_BUFF 1.07 1.17 1.27 V Over-Current Delay Counter ROSC = 7.75 KΩ (PHSOUT=1.5MHz) 4096 Cycle Over-Current Delay Counter ROSC = 15.0 KΩ (PHSOUT=800kHz) 2048 Cycle Over-Current Delay Counter ROSC = 50.0 KΩ (PHSOUT=250kHz) 1024 Cycle Over-Current Limit Amplifier Input Offset Voltage -10 0 10 mV Transconductance Note 1 0.50 1.00 1.75 mA/V Sink Current 35 55 75 uA Unity Gain Bandwidth Note 1 0.75 2.00 3.00 kHz Over Voltage Protection (OVP) Comparators Threshold at Power-up Measure at 1.5V VCCLDRV 1.1 1.21 1.30 V Threshold during Normal Operation Compare to V(VDAC) 105 125 145 mV OVP Release Voltage during Normal Operation Compare to V(VDAC) -13 3 20 mV Threshold during Dynamic VID down 1.70 1.73 1.75 V Dynamic VID Detect Comparator Threshold 25 50 75 mV Propagation Delay to IIN Measure time from V(VO) > V(VDAC) (250mV overdrive) to V(IIN) transition to > 0.9 * V(VCCL). 90 180 nS IIN Pull-up Resistance 5 15 Ω Propagation Delay to OVP Measure time from V(VO) > V(VDAC) (250mV overdrive) to V(ROSC/OVP) transition to >1V. 90 180 nS OVP High Voltage Measure V(VCCL)-V(ROSC/OVP) 0 1.2 V OVP Power-up High Voltage ROSC = 7.75 KΩ. Measure V(VCCLDRV)-V(ROSC/OVP) @ 1.5V .100 .240 .375 V OVP Power-up High Voltage ROSC = 24.5 KΩ. Measure V(VCCLDRV)-V(ROSC/OVP) @ 1.5V 0 0.2 |
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Similar Description - IR3502A |
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