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BQ24020_07 Datasheet, PDF (3/22 Pages) Texas Instruments – SINGLE-CHIP, LI-ION AND LI-POL CHARGER IC WITH AUTONOMOUS USB-PORT AND AC-ADAPTER SUPPLY MANAGEMENT (bqTINY-II)
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RECOMMENDED OPERATING CONDITIONS
over operating free-air temperature range (unless otherwise noted)
Supply voltage (from AC input), VCC
Supply voltage (from USB input), VCC
Operating junction temperature range, TJ
bq24020, bq24022, bq24023
bq24024, bq24025, bq24026
bq24027
SLUS549D – DECEMBER 2002 – REVISED MARCH 2006
MIN NOM
4.5
4.35
–40
MAX
6.5
6.5
125
UNIT
V
V
°C
ELECTRICAL CHARACTERISTICS
over 0°C ≤ TJ ≤ 125°C and recommended supply voltage, unless otherwise noted
PARAMETER
TEST CONDITIONS
INPUT CURRENT
ICC(VCC) VCC current
VCC > VCC(min)
ICC(SLP)
Sleep current
Sum of currents into OUT pin, VCC < V(SLP)
ICC(STBY) Standby current
CE = High
0°C ≤TJ ≤ 85°C
IIB(OUT)
Input current on OUT pin
Charge DONE
VCC > VCC(MIN)
IIB(CE)
Input current on CE pin
IIB(TTE)
Input bias current on TTE pin
IIB(TE)
Input bias current on TE pin
VOLTAGE REGULATION VO(REG) + V(DO-MAX) ≤ VCC , I(TERM) < IO(OUT) ≤ 1 A
VO(REG) Output voltage,
Voltage regulation accuracy
TA = 25°C
V(DO)
AC dropout voltage (V(AC)–V(OUT))
V(DO)
USB dropout voltage
(V(USB) – V(OUT))
CURRENT REGULATION
IO(OUT)
AC output current range(1)
IO(OUT)
USB output current range
V(SET)
Output current set voltage
K(SET)
Output current set factor
ǒ Ǔ K(SET) V(SET)
IO(OUT) +
(1)
RSET
VO(OUT) = VO(REG)
VO(REG) + V(DO-MAX)) ≤ VCC
VO(OUT) = VO(REG)
VO(REG) + V(DO-MAX)) ≤ VCC
VO(OUT) = VO(REG)
VO(REG) + V(DO-MAX)) ≤ VCC
IO(OUT) = 1A
ISET2 = High
ISET2 = Low
VI(OUT) > V(LOWV)
VI(AC)– VI(OUT) > V(DO-MAX)
VCC ≥ 4.5 V
VCC(MIN) ≥ 4.5 V
VUSB– VI(OUT) > V(DO-MAX)
VI(OUT) > V(LOWV)
ISET2 = Low
VCC(MIN) ≥ 4.5 V
VUSB– VI(OUT) > V(DO-MAX)
VI(OUT) > V(LOWV)
ISET2 = High
Voltage on ISET1 pin, VCC ≥ 4.5 V, VIN ≥ 4.5 V,
VI(OUT) > V(LOWV), VIN– VI(OUT) > V(DO-MAX)
50 mA ≤ IO(OUT) ≤ 1 A
10 mA ≤ IO(OUT) < 50 mA
1 mA ≤ IO(OUT) < 10 mA
MIN TYP
1.2
2
1
4.20
–0.35%
–1%
350
350
60
50
80
400
2.463 2.500
307
322
296
320
246
320
MAX UNIT
2.0 mA
5
150
5
µA
1
1
1
V
0.35%
1%
500
500 mV
100
1000
100 mA
500
2.538 V
337
346
416
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