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LP3941A Datasheet, PDF (13/32 Pages) National Semiconductor (TI) – Cellular Phone Power Management Unit | |||
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Comparatorsâ Electrical Characteristics (Continued)
Unless otherwise noted, VBATT = +2.5V to 5.5V, VO3 = 3.0V, VCM = 0.27V. Typical values and limits appearing in normal type
apply for TJ = 25ËC. Limits appearing in boldface type apply over the entire junction temperature range for operation, â40 to
+125ËC. (Notes 2, 8, 9)
Symbol
Parameter
Condition
Min
Typ
Max
Units
IQ
Quiescent Current per
Comparator
Note: Comparator output buffers are powered by LDO3 output voltage.
5
µA
RESET Electrical Characteristics
Unless otherwise noted, VBATT = +2.5V to 5.5V. Typical values and limits appearing in normal type apply for TJ = 25ËC. Limits
appearing in boldface type apply over the entire junction temperature range for operation, â40 to +125ËC. (Notes 2, 8, 9)
Symbol
Parameter
Condition
Min
Typ
Max
Units
V
Output Voltage High
OH
Internal Logic Supply
ISOURCE = 0 µA
VO3â0.2
VOL
Output Voltage Low
Internal Logic Supply
ISINK = 500 µA
VTSHLD
VO1 Threshold
VO1 Rising
90
93
VO1 Falling
82
85
tDELAY
RESET Active Time-Out Period From VO1 ⥠93% until RESET = High
34
40
tPS-HOLD PS-HOLD Timer
From RESET = Hi to PS-HOLD = Hi
From PS-HOLD = Low to RESET =
29
35
Low
V
0.4
V
96
%
88
%
47
ms
41
ms
tRESET
Shut-Down Timer
From RESET = Low until LDOs
turned off (no output regulation)
51
60
70
ms
RPU
IS-MAX
Pull-up Resistance to VO1
Maximum Sink Current
14
kâ¦
5
mA
LED Driver Electrical Characteristics
Unless otherwise noted, VBATT = +2.5V to 5.5V. Typical values and limits appearing in normal type apply for TJ = 25ËC. Limits
appearing in boldface type apply over the entire junction temperature range for operation, â40 to +125ËC. (Notes 2, 8, 9)
Symbol
Parameter
Condition
Min
Typ
Max
Units
VOL
ILEAKAGE
LED1â3 Output Low Level
LED1â3 Off Leakage Current
ISINK = 40 mA
VDR = 5.5V
0.17
0.55
V
4
µA
Main Battery Charger Electrical Characteristics
Unless otherwise noted, VCHG-IN = 5V, VBATT = 4V. Typical values and limits appearing in normal type apply for TJ = 25ËC.
Limits appearing in boldface type apply over the entire junction temperature range for operation, â40 to +125ËC. (Notes 2, 9,
8, 12)
Symbol
Parameter
Condition
Min
Typ
Max
Units
V
CHG-IN
Input Voltage Range
Operating Range
Battery Connected
4.5
12
V
4.5
6
VOKâTSHD
Adapter OK Trip Point
(CHG-IN)
VUVLOâTSHD Under Voltage Lock-Out Trip
Point
VOVLOâTSHD Over Voltage Lock-Out Trip
Point
IBATTSENSE Leakage Current
IBATT
Battery Input Current
VCHG-INâVBATT Rising
VCHG-INâVBATT Falling
VCHG-IN Rising
VCHG-IN Falling
VCHG-IN Rising
VCHG-IN Falling
VBATT = 4.2V
VCHG-IN ⤠4V
Charging Complete, charger
connected, VBATT = 4.1V
80
mV
30
mV
3.85
4.25
4.65
V
3.90
V
5.46
6.00
6.54
V
5.80
V
8
µA
2
µA
150
µA
13
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