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BQ24156AYFFR Datasheet(PDF) 5 Page - Texas Instruments

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Part # BQ24156AYFFR
Description  Fully Integrated Switch-Mode One-Cell Li-Ion Charger
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

BQ24156AYFFR Datasheet(HTML) 5 Page - Texas Instruments

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bq24153A, bq24156A
bq24158, bq24159
www.ti.com
SLUSAB0A
– OCTOBER 2010 – REVISED FEBRUARY 2012
RECOMMENDED OPERATING CONDITIONS
MIN
NOM
MAX
UNIT
VBUS
Supply voltage, bq24153A/8
4
6(1)
V
VBUS
Supply voltage, bq24156A/9
4
9(1)
V
TJ
Operating junction temperature range
–40
125
°C
(1)
The inherent switching noise voltage spikes should not exceed the absolute maximum rating on either the BOOST or SW pins. A tight
layout minimizes switching noise.
ELECTRICAL CHARACTERISTICS
Circuit of Figure 2, VBUS = 5 V, HZ_MODE = 0, OPA_MODE = 0 (CD = 0), TJ = –40°C to 125°C, TJ = 25°C for typical values
(unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
INPUT CURRENTS
VBUS
> VBUS(min), PWM switching
10
mA
I(VBUS)
VBUS supply current control
VBUS
> VBUS(min), PWM NOT switching
5
0
°C < TJ < 85°C, CD=1 or HZ_MODE=1
15
23
μA
0
°C < TJ < 85°C, V(CSOUT) = 4.2 V, High Impedance
Ilgk
Leakage current from battery to VBUS pin
5
μA
mode, VBUS = 0 V
0
°C < TJ < 85°C, V(CSOUT) = 4.2 V, High Impedance
Battery discharge current in High
mode, V = 0 V, SCL, SDA, OTG = 0 V
23
μA
Impedance mode, (CSIN, CSOUT, SW pins)
or 1.8 V
VOLTAGE REGULATION
V(OREG)
Output regulation voltage programable
Operating in voltage regulation, programmable
3.5
4.44
V
range
TA = 25°C
–0.5%
0.5%
Voltage regulation accuracy
–1%
1%
CURRENT REGULATION (FAST CHARGE)
bq24153A/8, V(LOWV) ≤ V(CSOUT) < V(OREG),
550
VBUS
> V(SLP), R(SNS) = 68 mΩ, LOW_CHG=0,
1250
mA
Programmable
IO(CHARGE)
Output charge current programmable range
bq24156A/9, V(LOWV) ≤ V(CSOUT) < V(OREG),
550
VBUS
> V(SLP), R(SNS) = 68 mΩ, LOW_CHG=0,
1550
mA
Programmable
Low charge current (default after POR in 15
VLOWV ≤ VCSOUT < VOREG, VBUS >VSLP, RSNS= 68
325
350
mA
min mode) for bq24153A/6A/8/9
m
Ω, LOW_CHG=1, OTG=High for bq24153A/8
Regulation accuracy of the voltage across
37.4 mV
≤ V(IREG)< 44.2mV
–3.5%
3.5%
R(SNS) (for charge current regulation)
44.2 mV
≤ V(IREG)
-3%
3%
V(IREG) = IO(CHARGE) × R(SNS)
WEAK BATTERY DETECTION
V(LOWV)
Weak battery voltage threshold
3.4
3.7
V
Adjustable using I2C control
programmable range2(1)
Weak battery voltage accuracy
–5%
5%
Hysteresis for V(LOWV)
Battery voltage falling
100
mV
Deglitch time for weak battery threshold
Rising voltage, 2-mV over drive, tRISE = 100 ns
30
ms
CD, OTG and SLRST PIN LOGIC LEVEL
VIL
Input low threshold level
0.4
V
VIH
Input high threshold level
1.3
V
I(bias)
Input bias current
Voltage on control pin is 5 V
1.0
µA
CHARGE TERMINATION DETECTION
Termination charge current programmable
V(CSOUT) > V(OREG) – V(RCH),
mA
I(TERM)
50
400
range
VBUS
> V(SLP), R(SNS) = 68 mΩ, Programmable
Deglitch time for charge termination
Both rising and falling, 2-mV overdrive,
30
ms
tRISE, tFALL = 100 ns
3.4 mV
≤ V(IREG_TERM) ≤ 6.8 mV
–15%
15%
Regulation accuracy for termination current
across R(SNS)
6.8 mV
< V(IREG_TERM) ≤ 17 mV
–10%
10%
V(IREG_TERM) = IO(TERM) × R(SNS)
17 mV
< V(IREG_TERM) ≤ 27.2 mV
–5.5%
5.5%
(1)
While in 15-min mode, if a battery that is charged to a voltage higher than this voltage is inserted, the charger enters Hi-Z mode and
awaits I2C commands.
Copyright
© 2010–2012, Texas Instruments Incorporated
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Product Folder Link(s): bq24153A bq24156A bq24158 bq24159


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