BQ2057CSN BENCHMARQ, BQ2057CSN Datasheet - Page 5

• Manufacturer Part Number: BQ2057CSN
• Description: PROG BATTERY CHARGER, 2057, SOIC8
• Manufacturer: BENCHMARQ

Specifications of BQ2057CSN

• Battery Type: Li-Ion / Li-Polymer
• Input Voltage: 15V
• Battery Charge Voltage: 4.2V
• Charge Current Max: 2A
• Battery Ic Case Style: SOIC
• No. Of Pins: 8
• No. Of Series Cells: 1
• Operating Temperature: RoHS Compliant

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