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UCC3958-1 Datasheet(PDF) 3 Page - Texas Instruments |
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UCC3958-1 Datasheet(HTML) 3 Page - Texas Instruments |
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3 / 8 page  3 UCC3958 -1/-2/-3/-4 ELECTRICAL CHARACTERISTICS: Unless otherwise specified, PACK+ = 4V, –20°C < TA < 70°C. All voltages measured with respect to BNEG. TA =TJ. PARAMETER TEST CONDITIONS MIN TYP MAX UNITS BNEG/PACK - SWITCH VBNEG -VPACK NORM, ISWITCH = 2A –100 –150 mV NORM, ISWITCH = –2A 100 150 mV VPACK+>VOV,ISWITCH = 20mA to 2A, (OV State) –100 –300 mV VPACK+ = 2.5V, ISWITCH = –20mA to –2A, (UV State) 100 600 mV RDSON NORM ISWITCH =2A 50 75 m Ω NORM ISWITCH = –2A 50 75 m Ω IBNEG – (Charger Leakage Current in OV) VPACK+>VOV (OV State) ([VPACK+]–[VPACK–]=6V) 120 µA BIAS Current IPACK+VPACK+> VUV 720 µA IPACK+ In Super Low Power Mode (VPACK+<VUV) 1 1.5 µA VBAT Minimum Operating Cell Voltage 1.5 V Battery Sample Rate (TS) 712 17 ms Short Circuit Protection ITHLD 2.75 5.25 7.25 A TDLY CDLY = 0 350 µs CDLY = 100pF (Maximum Recommended Value) 2.5 ms RRESET Overcurrent Reset Resistance 7.5 M Ω LPWARN Output LP Warn Threshold 2.55 2.65 2.75 V TR CLOAD = 100pF, 10% to 90% of PACK+ 280 560 ns TF CLOAD = 100pF, 10% to 90% of PACK+ 120 280 ns VHIGH (VPACK+–VLPWARN)ISINK = 200µA, VUV <VPACK+<VTLO 0.3 0.4 V VLOW ISOURCE = 200µA, VTLO <VPACK+ <VUV 0.3 0.4 V Measure Delay 6ms OVUVB Output TR CLOAD = 100pF, Hi Z to 90% of PACK+ 280 560 ns TF CLOAD = 100pF, Hi Z to 10% of PACK+ 140 280 ns VHIGH (VPACK+ –VOVUVB)ISOURCE = 200µA, VPACK+ ≥ VOV 0.3 0.4 V VLOW ISINK = 200µA, VPACK+ ≤ VUV 0.3 0.4 V ZOUT Output Tristated 10 M Ω Measure Delay 18 ms CE Input ISINK 150 nA Note 1: Other threshold voltages are available. |
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