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BQ2057TTSG4 Datasheet(PDF) 6 Page - Texas Instruments |
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BQ2057TTSG4 Datasheet(HTML) 6 Page - Texas Instruments |
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6 / 30 page  bq2057, bq2057C bq2057T, bq2057W SLUS025F − MAY 2001 − REVISED JULY 2002 6 www.ti.com electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) (continued) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT CURRENT REGULATION bq2057 and bq2057C, High-side current sensing configuration 95.4 105 115.5 V(SNS) Current regulation bq2057T and bq2057W, High-side current sensing configuration 113.6 125 137.5 mV V(SNS) Current regulation threshold bq2057 and bq2057C, Low-side current sensing configuration 100 110 121 mV bq2057T and bq2057W, Low-side current sensing configuration 118.1 130 143 CHARGE TERMINATION DETECTION I(TERM) Charge termination current detect threshold Voltage at pin SNS, relative to VCC for high-side sensing, and to Vss for low-side sensing, 0 °C ≤ TA ≤ 50°C −24 −14 −4 mV TEMPERATURE COMPARATOR V(TS1) Lower temperature threshold TS pin voltage 29.1 30 30.9 %VCC V(TS2) Upper temperature threshold TS pin voltage 58.3 60 61.8 %VCC PRECHARGE COMPARATOR bq2057 2.94 3 3.06 V(min) Precharge bq2057C 3.04 3.1 3.16 V V(min) Precharge threshold bq2057T 5.98 6.1 6.22 V threshold bq2057W 6.18 6.3 6.43 PRECHARGE CURRENT REGULATION I(PRECHG) Precharge current regulation Voltage at pin SNS, relative to VCC for high-side sensing, and to VSS for low-side sensing, 0 °C ≤ TA ≤ 50°C 13 mV I(PRECHG) regulation Voltage at pin SNS, relative to VCC for high-side sensing, 0 °C ≤ TA ≤ 50°C, VCC = 5 V 3 13 22 mV VRCH COMPARATOR (Battery Recharge Threshold) V(RCH) Recharge bq2057 and bq2057C VO(REG)− 98 mV VO(REG)− 100 mV VO(REG)− 102 mV V V(RCH) Recharge threshold bq2057T and bq2057W VO(REG)− 196 mV VO(REG)− 200 mV VO(REG)− 204 mV V CHARGE-RATE COMPENSATION (AutoComp) G(COMP) AutoComp gain V(BAT)+0.3 V≤ VCC ≤ VCC(max), bq2057, bq2057C, bq2057T, bq2057W 1.87 2.2 2.53 V/V G(COMP) AutoComp gain V(BAT)+0.3 V ≤ VCC ≤ VCC(max), bq2057T and bq2057W in low-side sensing configuration 2.09 2.4 2.76 V/V STAT PIN VOL(STAT) Output (low) voltage IOL = 10 mA 0.7 V VOH(STAT) Output (high) voltage IOH = 5 mA VCC-0.5 V CC PIN VOL(CC) Output low voltage IO(CC) = 5 mA (sink) 1.5 V IO(CC) Sink current Not to exceed power rating specification (PD) 5 40 mA |
Similar Part No. - BQ2057TTSG4 |
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Similar Description - BQ2057TTSG4 |
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