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TPS2346 Datasheet(PDF) 4 Page - Texas Instruments |
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TPS2346 Datasheet(HTML) 4 Page - Texas Instruments |
4 / 30 page TPS2346 SLUS529 – MAY 2002 4 www.ti.com electrical characteristics VI(VIN1) = 5.15 V, VI(VIN2) = 5 V, VI(VIN3) = 3.3 V, VI(VIN4) = –5.2 V, TA = –40_C to 85_C (unless otherwise noted) (continued) overcurrent comparators 1, 2, 3 PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VOC1 Overcurrent threshold voltage (VIN1 – CS1) 34 45 56 VOC2 Overcurrent threshold voltage (VIN2 – CS2) 29 40 51 mV VOC3 Overcurrent threshold voltage (VIN3 – CS3) 29 40 51 tR Response time 1 5 µs overcurrent comparator 4 PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VOC4 Overcurrent threshold voltage (VIN4 – CS4) relative to VMAX4 –50 –225 mV tR Response time 1 5 µs undervoltage (UV) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VUV1 Channel 1 undervoltage limit 4.35 4.53 4.71 VUV2 Channel 2 undervoltage limit 4.22 4.40 4.58 V VUV3 Channel 3 undervoltage limit 2.78 2.90 3.02 V VUV4 Channel 4 undervoltage limit -4.76 -4.58 -4.30 overvoltage (OV) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VOV1 Channel 1 overvoltage limit 5.54 5.77 6.00 VOV2 Channel 2 overvoltage limit 5.38 5.60 5.82 V VOV3 Channel 3 overvoltage limit 3.55 3.70 3.85 V VOV4 Channel 4 overvoltage limit -7.00 -5.82 -5.54 IRAMP output PARAMETER TEST CONDITIONS MIN TYP MAX UNIT ICHG Source current, charging VO(IRAMP) = 0.5 V –46 –58 –68 A IDSG Sink current, discharging VO(IRAMP) = 0.5 V 1.3 1.8 2.5 µA undervoltage lockout (UVLO) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VUVLO–L VIN1 UVLO, input rising 2.1 2.4 2.9 VUVLO–H VIN1 UVLO, input falling VI(VIN2) = VI(VIN3) = VI(VIN4) = 0 V 1.90 2.25 2.70 V VHYS VIN1 UVLO hysteresis VI(VIN2) VI(VIN3) VI(VIN4) 0 V 0.05 V ENABLE input PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VIL Low-level input voltage 0.8 V VIH High-level input voltage 2 V IIH High-level input leakage current VI(ENABLE) = 5 V 50 µA |
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Similar Description - TPS2346_08 |
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