BQ24020_07 Datasheet, PDF (2/22 Pages) Texas Instruments – SINGLE-CHIP, LI-ION AND LI-POL CHARGER IC WITH AUTONOMOUS USB-PORT AND AC-ADAPTER SUPPLY MANAGEMENT (bqTINY-II)

bq24020, bq24022, bq24023
bq24024, bq24025, bq24026
bq24027
SLUS549D – DECEMBER 2002 – REVISED MARCH 2006
www.ti.com
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
Different versions of the bqTINY-II offer many additional features. These include a temperature-sensor input for
detecting hot or cold battery packs, a power-good output (PG) indicating the presence of input power, a
TTL-level charge-enable input (CE) used to disable or enable the charge process, and a TTL-level timer and
taper-detect enable input (TTE) used to disable or enable the fast-charge timer and charge termination.
ORDERING INFORMATION
T_J
– 40°C
to
125°C
CHARGE
REGULATION
VOLTAGE (V)(1)
4.2
4.2
4.2
4.2
4.2
4.2
OPTIONAL
FUNCTIONS ⁽¹⁾
CE and TS
PG and CE
CE and TTE
TTE and TS
CE and TS
TE and TS
FAST-CHARGE TAPER
TIMER (Hours) TIMER
5
Yes
5
Yes
5
Yes
5
Yes
7
Yes
7
No
4.2
PG and CE
7
No
USB TAPER
THRESHOLD
10% of ISET1 Level
10% of ISET1 Level
10% of ISET1 Level
10% of ISET1 Level
10% of ISET1 Level
10% of selected
USB charge rate
10% of selected
USB charge rate
(1) The DRC package is available taped and reeled only in quantities of 3,000 devices per reel.
PART
NUMBER(2)
MARKINGS
bq24020DRCR
bq24022DRCR
bq24023DRCR
bq24024DRCR
bq24025DRCR
AZS
AZU
AZV
AZW
AZX
bq24026DRCR
ANR
bq24027DRCR
ANS
Dissipation Ratings
PACKAGE
DRC ⁽¹⁾
θ_JA
46.87 °C/W
T_A < 40°C POWER RATING
1.5 W
DERATING FACTOR ABOVE T_A = 25°C
0.021 W/°C
(1) This data is based on using the JEDEC High-K board and the exposed die pad is connected to a copper pad on the board. This is
connected to the ground plane by a 2x3 via matrix.
ABSOLUTE MAXIMUM RATINGS⁽¹⁾
over operating free-air temperature range (unless otherwise noted)
Input voltage⁽²⁾
AC, CE, ISET1, ISET2, OUT, PG, STAT1, STAT2, TE, TS, TTE, USB
Output sink/source current STAT1, STAT2, PG
Output current
TS
Output current
OUT
Operating free-air temperature range, T_A
Junction temperature range, T_J
Storage temperature, T_stg
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds
bq24020, bq24022,
bq24023, bq24024
bq24025, bq24026
bq24027
–0.3 to 7.0
15
200
1.5
–40 to 125
–65 to 150
300
UNIT
V
mA
µA
A
°C
(1) 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.
(2) All voltages are with respect to V_SS.
2
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