Datasheet

 
 
SLUS025F − MAY 2001 − REVISED JULY 2002
5
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absolute maximum ratings over operating free-air temperature (unless otherwise noted)
†
Supply voltage (V
CC
with respect to GND) −0.3 to +18 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input voltage, SNS, BAT, TS, COMP (all with respect to GND) −0.3 V to V
CC
+0.3 V. . . . . . . . . . . . . . . . . . . . . . . . . .
Sink current (STAT pin) not to exceed P
D
20 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Source current (STAT pin) not to exceed P
D
10 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output current (CC pin) not to exceed P
D
40 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Total power dissipation, P
D
(at 25°C) 300mW. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating free-air temperature range, T
A
−20°C to 70°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range, T
stg
−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 T
A
= 25°C
T
A
≤ 25°C
POWER RATING
T
A
= 70°C
POWER RATING
DGK 3.4 mW/°C 424 mW 271 mW
recommended operating conditions
MIN MAX UNIT
Supply voltage, V
CC
4.5 15 V
Operating free-air temperature range, T
A
−20 70 °C
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
I
(VCC)
V
CC
Current V
CC
> V
CC(min)
, Excluding external loads 2 4 mA
I
(VCCS)
V
CC
Sleep current
For bq2057 and bq2957C,
V
(BAT)
≥ V
(min)
, V
(BAT)
– V
CC
≥ 0.8 V
3 6
A
I
(VCCS)
V
CC
Sleep current
For bq2057T and bq2957W,
V
(BAT)
≥ V
(min)
, V
(BAT)
– V
CC
≥ 0.8 V
10
µA
I
IB(BAT)
Input bias current on BAT pin V
(BAT)
= V
(REG)
1 µA
I
IB(SNS)
Input bias current on SNS pin V(
SNS)
= 5 V 5 µA
I
IB(TS)
Input bias current on TS pin V
(TS)
= 5 V 5 µA
I
IB(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
V
O(REG)
Output voltage
bq2057C, See Notes 1, 2, 3 4.158 4.20 4.242
V
V
O(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 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)