BQ24232HA Datasheet, PDF (8/36 Pages) Texas Instruments – USB-Friendly Lithium-Ion Battery Charger

bq24232HA
SLUSCG4 – MAY 2016
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Electrical Characteristics (continued)
over junction temperature range –5°C ≤ T_J ≤ 125°C and recommended supply voltage (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
LOGIC LEVELS ON EN1, EN2, CE, TD
V_IL
Logic LOW input voltage
0
V_IH
Logic HIGH input voltage
1.4
I_IL
Input sink current
V_IL = 0 V
I_IH
Input source current
V_IH = 1.4 V
LOGIC LEVELS ON PGOOD, CHG
V_OL
Output LOW voltage
I_SINK = 5 mA
MAX
0.4
6.0
1
10
0.4
UNIT
V
V
μA
μA
V
6.6 Timing Requirements
over junction temperature range –5°C ≤ T_J ≤ 125°C and recommended supply voltage (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
INPUT
t_DGL(PGOOD)
Deglitch time, input power
detected status
Time measured from V_IN: 0 V → 5-V
1-μs rise time to PGOOD = LO
2
t_DGL(OVP)
Input overvoltage blanking time
50
t_REC(OVP)
Input overvoltage recovery time ^{Time measured from VIN: 11 V → 5-V}
1-μs fall time to PGOOD = LO
2
POWER PATH
t_DGL(SC2)
Deglitch time, supplement mode
short circuit
250
t_REC(SC2)
Recovery time, supplement
mode short circuit
60
BATTERY CHARGER
t_DGL1(LOWV)
Deglitch time on precharge to
fast-charge transition
25
t_DGL2(LOWV)
Deglitch time on fast-charge to
precharge transition
25
t_DGL(TERM)
Deglitch time, termination
detected
25
t_DGL(RCH)
Deglitch time, recharge
threshold detected
62.5
t_DGL(NO-IN)
Delay time, input power loss to VBAT = 3.6 V. Time measured from
charger turnoff
V_IN: 5 V → 3 V 1-μs fall time
20
BATTERY CHARGING TIMERS
t_PRECHG
Precharge safety timer value
t_MAXCHG
Charge safety timer value
t_PRECHG
Precharge safety timer value
t_MAXCHG
Charge safety timer value
K_TMR
Timer factor
BATTERY-PACK NTC MONITOR⁽¹⁾
TMR = floating
TMR = floating
18 kΩ < R_TMR < 72 kΩ
18 kΩ < R_TMR < 72 kΩ
1440
1800
14400
18000
R_TMR × K_TMR
10×RTMR ×K_TMR
36
48
2160
21600
60
t_DGL(TS)
Deglitch time, pack temperature
fault detection
Battery charging, V_TS Falling
50
UNIT
ms
μs
ms
μs
ms
ms
ms
ms
ms
ms
s
s
s
s
s/kΩ
ms
(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 kΩ.
8
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