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QB2057T Datasheet(PDF) 5 Page - Texas Instruments |
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QB2057T Datasheet(HTML) 5 Page - Texas Instruments |
5 / 30 page bq2057, bq2057C bq2057T, bq2057W SLUS025F − MAY 2001 − REVISED JULY 2002 5 www.ti.com absolute maximum ratings over operating free-air temperature (unless otherwise noted)† Supply voltage (VCC with respect to GND) −0.3 to +18 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Input voltage, SNS, BAT, TS, COMP (all with respect to GND) −0.3 V to VCC+0.3 V . . . . . . . . . . . . . . . . . . . . . . . . . . Sink current (STAT pin) not to exceed PD 20 mA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Source current (STAT pin) not to exceed PD 10 mA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Output current (CC pin) not to exceed PD 40 mA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Total power dissipation, PD (at 25°C) 300mW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Operating free-air temperature range, TA −20 °C to 70°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Storage temperature range, Tstg −40 °C to 125°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Lead temperature (soldering, 10 s) 300 °C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . † Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. DISSIPATION RATING TABLE PACKAGE DERATING FACTOR ABOVE TA = 25°C TA ≤ 25°C POWER RATING TA = 70°C POWER RATING DGK 3.4 mW/ °C 424 mW 271 mW recommended operating conditions MIN MAX UNIT Supply voltage, VCC 4.5 15 V Operating free-air temperature range, TA −20 70 °C electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT I(VCC) VCC Current VCC > VCC(min), Excluding external loads 2 4 mA I(VCCS) VCC Sleep current For bq2057 and bq2957C, V(BAT) ≥ V(min), V(BAT) – VCC ≥ 0.8 V 3 6 A I(VCCS) VCC Sleep current For bq2057T and bq2957W, V(BAT) ≥ V(min), V(BAT) – VCC ≥ 0.8 V 10 µA IIB(BAT) Input bias current on BAT pin V(BAT) = V(REG) 1 µA IIB(SNS) Input bias current on SNS pin V(SNS)= 5 V 5 µA IIB(TS) Input bias current on TS pin V(TS) = 5 V 5 µA IIB(COMP) Input bias current on COMP pin V(COMP) = 5 V 5 µA BATTERY VOLTAGE REGULATION bq2057, See Notes 1, 2, 3 4.059 4.10 4.141 VO(REG) Output voltage bq2057C, See Notes 1, 2, 3 4.158 4.20 4.242 V VO(REG) Output voltage bq2057T, See Notes 1, 2, 3 8.119 8.20 8.282 V bq2057W, See Notes 1, 2, 3 8.317 8.40 8.484 NOTES: 1. For high-side current sensing configuration 2. For low-side current sensing configuration, the tolerance is ±1% for TA = 25°C and ±1.2% for −20°C ≥ TA ≥ 70°C 3. V(BAT)+0.3 V ≤ VCC ≤ VCC(max) |
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