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| BQ40Z60_16 Datasheet, PDF (15/47 Pages) Texas Instruments – Programmable Battery Management Unit | |||
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bq40z60
SLUSAW3C â DECEMBER 2014 â REVISED JULY 2015
8.33 Battery Charger Precharge Current Sense (HSRP, HSRN)
Typical values stated where TA = 25°C and VCC = 10.8 V, Min/Max values stated where TA = â40°C to 85°C and VCC =
2.2 V to 26 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX UNIT
VIN(Normal
range)
VACC
Differential Input range
Measurement accuracy
DAC range for current measurement
VHSRP â VHSRN = 2 mV, RSense= 10 mΩ
(VHSRN > 2.3 V)
2
â70%
20 mV
70%
8.34 AC Adapter Fault Detect (HSRN, VCC)
Typical values stated where TA = 25°C and VCC = 10.8 V, Min/Max values stated where TA = â40°C to 85°C and VCC =
2.2 V to 26 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX UNIT
VHSRN â VCC
AC adapter input fault
detect
Battery > AC adapter input (Falling)
150
225
300 mV
VHys
Recovery hysteresis
AC adapter input > Battery (Rising)
50
100
150 mV
8.35 Battery Charger Overcurrent Detection (V)HSRP, (V)HSRN
Typical values stated where TA = 25°C and VCC = 10.8 V, Min/Max values stated where TA = â40°C to 85°C and VCC =
2.2 V to 26 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX UNIT
IOC(max)
Charger overcurrent
threshold
Charging current as a percentage of max sense
voltage range
180
200 mV
IOC(min)
Charger overcurrent
threshold
Minimum charging overcurrent detected
45
55
mV
8.36 Battery Charger Undercurrent Detection (V)HSRP, (V)HSRN
Typical values stated where TA = 25°C and VCC = 10.8 V, Min/Max values stated where TA = â40°C to 85°C and VCC =
2.2 V to 26 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX UNIT
IUC(Detect)
IUC(Non-synch)
Detect under current for
negative inductor current
Minimum sense voltage to
enter non-synchronous
mode
VHSRP â VHSRN < 0 mV, for negative inductor
current, VHSRP > 2.3 V
1
5
1.7
16 mV
mV
8.37 System Operation Detection (V)HSRN
Typical values stated where TA = 25°C and VCC = 10.8 V, Min/Max values stated where TA = â40°C to 85°C and VCC =
2.2 V to 26 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX UNIT
VHSRN
VHys
Input voltage for operation VHSRN Falling
Recovery hysteresis
VHSRN Rising
2.05
2.15
100
150
2.25 V
200 mV
8.38 Battery Overvoltage Comparator (VFB)
Typical values stated where TA = 25°C and VCC = 10.8 V, Min/Max values stated where TA = â40°C to 85°C and VCC =
2.2 V to 26 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX UNIT
VOV(max)
Battery over-voltage
detection
VFB > Set value (Rising)
106%
VOV(Recovery)
Battery over-voltage
recovery
VFB < VOV (Falling)
103%
Copyright © 2014â2015, Texas Instruments Incorporated
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