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| BQ24075-Q1_15 Datasheet, PDF (5/38 Pages) Texas Instruments – SLUSAU3B –FEBRUARY 2012–REVISED MARCH 2012 | |||
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bq24075-Q1
www.ti.com
SLUSAU3B â FEBRUARY 2012 â REVISED MARCH 2012
ELECTRICAL CHARACTERISTICS (continued)
Over ambient temperature range (-40C° ⤠TA ⤠125°C) and the recommended supply voltage range (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX UNIT
BATTERY CHARGER
IBAT
VBAT(SC)
VBAT(REG)
VLOWV
tDGL1(LOWV)
tDGL2(LOWV)
ICHG
Source current for BAT pin short-circuit detection
BAT pin short-circuit detection threshold
Battery charge voltage
Pre-charge to fast-charge transition threshold
Deglitch time on pre-charge to fast-charge transition
Deglitch time on fast-charge to pre-charge transition
Battery fast charge current range
Battery fast charge current
VBAT = 1.5V
VBAT rising
VIN > VUVLO and VIN > VBAT + VIN(DT)
VBAT(REG) > VBAT > VLOWV, VIN = 5 V CE = LO,
EN1 = LO, EN2 = HI
CE = LO, EN1= LO, EN2 = HI,
VBAT > VLOWV, VIN = 5 V, IINmax > ICHG, no load on OUT pin,
thermal loop and DPPM loop not active
4
7.5
1.6
1.8
4.15
4.20
2.9
3
25
25
300
KISET/RISET
11 mA
2
V
4.23
V
3.1
V
ms
ms
1500 mA
A
KISET
IPRECHG
KPRECHG
Fast charge current factor
Pre-charge current
Pre-charge current factor
ITERM
Termination comparator detection threshold
(internally set)
CE = LO, (EN1, EN2) â (LO, LO),
VBAT > VRCH, t < tMAXCH, VIN = 5 V, DPPM loop and thermal
loop not active
CE = LO, (EN1, EN2) = (LO, LO),
VBAT > VRCH, t < tMAXCH, VIN = 5 V, DPPM loop and thermal
loop not active
797
890
KPRECHG/RISET
55
88
975 Aâ¦
A
110 Aâ¦
0.09ÃICHG
0.1ÃICHG 0.11ÃICHG
A
0.027ÃICHG 0.033ÃICHG 0.040ÃICHG
tDGL(TERM)
VRCH
Deglitch time, termination detected
Recharge detection threshold
VIN > VUVLO and VIN > VBAT + VIN(DT)
VBAT(REG)
â140mV
25
ms
VBAT(REG)
â100mV
VBAT(REG)
â55mV
V
tDGL(RCH)
Deglitch time, recharge threshold detected
tDGL(NO-IN)
Delay time, input power loss to OUT LDO turn-off
IBAT(DET)
Sink current for battery detection
tDET
Battery detection timer
BATTERY CHARGING TIMERS
VBAT = 3.6 V. Time measured from
VIN: 5 V â 3 V 1 μs fall-time
VBAT = 2.5V
BAT high or low
62.5
ms
20
ms
5
7.5
10 mA
250
ms
tPRECHG
Pre-charge safety timer value
tMAXCHG
Charge safety timer value
tPRECHG
Pre-charge safety timer value
tMAXCHG
Charge safety timer value
KTMR
Timer factor
BATTERY-PACK NTC MONITOR(1)
TMR = floating
TMR = floating
18 k⦠< RTMR < 72 kâ¦
18 k⦠< RTMR < 72 kâ¦
1440
1800
14400
18000
RTMR Ã KTMR
10ÃR TMR ÃKTMR
36
48
2160
21600
60
s
s
s
s
s/kâ¦
INTC
NTC bias current
VHOT
High temperature trip point
VHYS(HOT)
Hysteresis on high trip point
VCOLD
Low temperature trip point
VHYS(COLD)
Hysteresis on low trip point
tDGL(TS)
Deglitch time, pack temperature fault detection
THERMAL REGULATION
VIN > UVLO and VIN > VBAT + VIN(DT)
Battery charging, VTS Falling
Battery charging, VTS Rising from VHOT
Battery charging, VTS Rising
Battery charging, VTS Falling from VCOLD
TS fault detected to charger disable
72
270
2000
75
300
30
2100
300
50
80 μA
330 mV
mV
2200 mV
mV
ms
TJ(REG)
TJ(OFF)
TJ(OFF-HYS)
Temperature regulation limit
Thermal shutdown temperature
Thermal shutdown hysteresis
TJ Rising
125
°C
155
°C
20
°C
(1) These numbers set trip points of 0°C and 50°C while charging, with 3°C hysteresis on the trip points, with a Vishay Type 2 curve NTC
with an R25 of 10 kâ¦.
Copyright © 2012, Texas Instruments Incorporated
Product Folder Link(s): bq24075-Q1
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