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bq24195L Datasheet(PDF) 8 Page - Texas Instruments

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Part # bq24195L
Description  I2C Controlled 2.5A / 4.5A Single Cell USB/Adapter Charger With 5.1V at 1A / 5.1V at 2.1A Synchronous Boost Operation
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

bq24195L Datasheet(HTML) 8 Page - Texas Instruments

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bq24195
bq24195L
SLUSB97 – OCTOBER 2012
www.ti.com
ELECTRICAL CHARACTERISTICS (continued)
VVBUS_UVLOZ < VVBUS < VACOV and VVBUS > VBAT + VSLEEP, TJ = –40°C to 125°C and TJ = 25°C for typical values unless other
noted.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
POWER PATH MANAGEMENT
Isys = 0A, Q4 off, VBAT up to 4.2 V,
VSYS_RANGE
System regulation voltage
3.5
4.35
V
REG01[3:1]=101, VSYSMIN = 3.5 V
VSYS_MIN
System voltage output
REG01[3:1]=101, VSYSMIN = 3.5 V
3.55
3.65
V
Internal top reverse blocking MOSFET on-
RON(RBFET)
Measured between VBUS and PMID
23
38
m
Ω
resistance
TJ = –40°C – 85°C
30
38
Internal top switching MOSFET on-
RON(HSFET)
m
Ω
resistance between PMID and SW
TJ = -40°C – 125°C
30
48
TJ = –40°C – 85°C
35
48
Internal bottom switching MOSFET on-
RON(LSFET)
m
Ω
resistance between SW and PGND
TJ = -40°C – 125°C
35
51
BATFET forward voltage in supplement
VFWD
BAT discharge current 10mA
30
mV
mode
VSYS_BAT
SYS/BAT Comparator
VSYS falling
90
mV
VBATGD
Battery good comparator rising threshold
VBAT rising
3.4
3.55
3.7
V
VBATGD_HYST
Battery good comparator falling threshold
VBAT falling
100
mV
BATTERY CHARGER
VBAT_REG_ACC
Charge voltage regulation accuracy
VBAT = 4.208V
–0.5%
0.5%
VBAT = 3.8V, ICHG = 1792mA, TJ = 25°C
–4%
4%
IICHG_REG_ACC
Fast charge current regulation accuracy
VBAT = 3.8V, ICHG = 1792mA, TJ = –20°C – 125°C
–7%
7%
ICHG_20pct
Charge current with 20% option on
VBAT = 3.1V, ICHG = 104mA, REG02=03
75
100
125
mA
VBATLOWV
Battery LOWV falling threshold
Fast charge to precharge, REG04[1] = 1
2.6
2.8
2.9
V
VBATLOWV_HYST
Battery LOWV rising threshold
Precharge to fast charge, REG04[1] = 1
2.8
3.0
3.1
V
IPRECHG_ACC
Precharge current regulation accuracy
VBAT = 2.6V, ICHG = 256mA
–20%
20%
ITERM_ACC
Termination current accuracy
ITERM = 256mA, ICHG = 960mA
–20%
20%
VSHORT
Battery Short Voltage
VBAT falling
1.8
V
VSHORT_HYST
Battery Short Voltage hysteresis
VBAT rising
200
mV
ISHORT
Battery short current
VBAT<2.2V
100
mA
VRECHG
Recharge threshold below VBAT_REG
VBAT falling, REG04[0] = 0
100
mV
tRECHG
Recharge deglitch time
VBAT falling, REG04[0]=0
20
ms
TJ = 25°C
12
15
RON_BATFET
SYS-BAT MOSFET on-resistance
m
Ω
TJ = –40°C – 125°C
12
20
INPUT VOLTAGE/CURRENT REGULATION
VINDPM_REG_ACC
Input voltage regulation accuracy
–2%
2%
USB100
85
100
mA
USB150
125
150
mA
USB Input current regulation limit, VBUS =
IUSB_DPM
5V, current pulled from SW
USB500
440
500
mA
USB900
750
900
mA
IADPT_DPM
Input current regulation accuracy
Input current limit 1.5A
1.4
1.5
1.6
A
IIN_START
Input current limit during system start up
VSYS<2.2V
100
mA
KILIM
IIN = KILIM/RILIM
IINDPM = 1.5A
440
485
530
A x
Ω
D+/D- DETECTION
VD+_SRC
D+ voltage source
0.5
0.6
0.7
V
ID+_SRC
D+ connection check current source
7
14
µA
ID–_SINK
D– current sink
50
100
150
µA
D–, switch open
–1
1
µA
ID_LKG
Leakage current into D+/D–
D+, switch open
–1
1
µA
VD+_LOW
D+ Low comparator threshold
0.7
0.8
V
VD–_LOWdatref
D– Low comparator threshold
250
400
mV
RD–_DWN
D– Pulldown for connection check
14.25
24.8
k
Ω
Charging timer with 100mA USB host in
tSDP_DEFAULT
45
mins
default mode
8
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Copyright © 2012, Texas Instruments Incorporated
Product Folder Links: bq24195 bq24195L


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