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BQ24090DGQT Datasheet(PDF) 4 Page - Texas Instruments

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Part # BQ24090DGQT
Description  1A, Single-Input, Single Cell Li-Ion and Li-Pol Battery Charger
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

BQ24090DGQT Datasheet(HTML) 4 Page - Texas Instruments

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bq24090, bq24091
bq24092, bq24093
bq24095
SLUS968D – JANUARY 2010 – REVISED DECEMBER 2012
www.ti.com
ELECTRICAL CHARACTERISTICS (continued)
Over junction temperature range 0°C
≤ TJ ≤ 125°C and recommended supply voltage (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
QUIESCENT CURRENT
IOUT(PDWN)
Battery current into OUT pin
VIN = 0V
1
μA
IOUT(DONE)
OUT pin current, charging terminated
VIN = 6V, VOUT > VOUT(REG)
6
IIN(STDBY)
Standby current into IN pin
TS = LO, VIN ≤ 6V
125
μA
TS = open, VIN = 6V, TTDM – no load on OUT pin,
ICC
Active supply current, IN pin
0.8
1.0
mA
VOUT > VOUT(REG), IC enabled
BATTERY CHARGER FAST-CHARGE
Battery regulation voltage
VIN = 5.5V, IOUT = 25mA, (VTS-45°C≤ VTS ≤ VTS-0°C)
4.16
4.2
4.23
(bq24090/1/2/3)
VOUT(REG)
V
Battery regulation voltage (bq24095)
VIN = 5.5V, IOUT = 25mA
4.30
4.35
4.40
Battery hot regulation Voltage,
VO_HT(REG)
VIN = 5.5V, IOUT = 25mA, VTS-60°C≤ VTS ≤ VTS-45°C
4.02
4.06
4.1
V
bq24092/3
VOUT(REG) > VOUT > VLOWV; VIN = 5V, ISET2=Lo,
Programmed Output “fast charge”
IOUT(RANGE)
10
1000
mA
current range
RISET = 540 to 10.8kΩ
Adjust VIN down until IOUT = 0.5A, VOUT = 4.15V,
VDO(IN-OUT)
Drop-Out, VIN – VOUT
325
520
mV
RISET = 540 , ISET2=Lo (adaptor mode); TJ ≤ 100°C
IOUT
Output “fast charge” formula
VOUT(REG) > VOUT > VLOWV; VIN = 5V, ISET2 = Lo
KISET/RISET
A
RISET = KISET /IOUT; 50 < IOUT < 1000 mA
510
540
565
Fast charge current factor for
KISET
RISET = KISET /IOUT; 25 < IOUT < 50 mA
480
527
580
A
bq24090, 91, 92, 93
RISET = KISET /IOUT; 10 < IOUT < 25 mA
350
520
680
RISET = KISET /IOUT; 50 < IOUT < 1000 mA
510
560
585
Fast charge current factor for
KISET
RISET = KISET /IOUT; 25 < IOUT < 50 mA
480
557
596
A
bq24095
RISET = KISET /IOUT; 10 < IOUT < 25 mA
350
555
680
PRECHARGE – SET BY PRETERM PIN
Pre-charge to fast-charge transition
VLOWV
2.4
2.5
2.6
V
threshold
Deglitch time on pre-charge to fast-
tDGL1(LOWV)
70
μs
charge transition
Deglitch time on fast-charge to pre-
tDGL2(LOWV)
32
ms
charge transition
IPRE-TERM
Refer to the Termination Section
VOUT < VLOWV; RISET = 1080Ω;
%IOUT-
Pre-charge current, default setting
18
20
22
RPRE-TERM= High Z
CC
%PRECHG
Pre-charge current formula
RPRE-TERM = KPRE-CHG (Ω/%) × %PRE-CHG (%)
RPRE-TERM/KPRE-CHG%
VOUT < VLOWV, VIN = 5V, RPRE-TERM = 2k to 10kΩ;
RISET = 1080Ω , RPRE-TERM = KPRE-CHG × %IFAST-CHG,
90
100
110
Ω/%
where %IFAST-CHG is 20 to 100%
KPRE-CHG
% Pre-charge Factor
VOUT < VLOWV, VIN = 5V, RPRE-TERM = 1k to 2kΩ; RISET
= 1080
Ω, RPRE-TERM = KPRE-CHG × %IFAST-CHG, where
84
100
117
Ω/%
%IFAST-CHG is 10% to 20%
TERMINATION – SET BY PRE-TERM PIN
Termination Threshold Current, default
VOUT > VRCH; RISET = 1k;
%IOUT-
9
10
11
setting
RPRE-TERM= High Z
CC
%TERM
Termination Current Threshold
RPRE-TERM = KTERM (Ω/%) × %TERM (%)
RPRE-TERM/ KTERM
Formula
VOUT > VRCH, VIN = 5V, RPRE-TERM = 2k to 10kΩ ;
RISET = 750Ω KTERM × %IFAST-CHG, where %IFAST-CHG
182
200
216
is 10 to 50%
KTERM
% Term Factor
Ω/%
VOUT > VRCH, VIN = 5V, RPRE-TERM = 1k to 2kΩ ; RISET
174
199
224
= 750
Ω KTERM × %Iset, where %Iset is 5 to 10%
Current for programming the term. and
IPRE-TERM
pre-chg with resistor. ITerm-Start is the
RPRE-TERM = 2k, VOUT = 4.15V
71
75
81
μA
initial PRE-TERM current.
%TERM
Termination current formula
RTERM/ KTERM
%
tDGL(TERM)
Deglitch time, termination detected
29
ms
Elevated PRE-TERM current for, tTerm-
ITerm-Start
Start, during start of charge to prevent
80
85
92
μA
recharge of full battery,
4
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Copyright © 2010–2012, Texas Instruments Incorporated
Product Folder Links: bq24090 bq24091 bq24092 bq24093 bq24095


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