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SMB239 bảng dữ liệu(PDF) 7 Page - Summit Microelectronics, Inc.

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SMB239 bảng dữ liệu(HTML) 7 Page - Summit Microelectronics, Inc.

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SMB239
Summit Microelectronics, Inc
2129 3.0 2/23/2009
7
DC OPERATING CHARACTERISTICS (CONTINUED)
TA= -30°C to +85°C, VIN = +5.0V, VFLOAT = +4.2V unless otherwise noted. All voltages are relative to GND.
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
Logic Inputs/Output
VIL
Input Low Level
600
mV
VIH
Input High Level
1.4
V
VOL
SDA/STAT Output Low Level
ISINK=3mA
300
mV
ISINK
STAT sink current
VOL = 0.4V
5
mA
Battery Charger
VTRICKLECHG
Trickle-charge to pre-charge
voltage threshold
2.0
V
ITRICKLECHG
Nominal trickle-charge
current
VBATT = 1.5V
10
mA
VPRECHG
Pre-charge to fast-charge
voltage threshold
100mV steps
2.400
3.100
V
IPRECHG
Nominal pre-charge current
range
16 steps
25
212.5
mA
∆IPRECHG
Pre-charge current tolerance
IPRECHG = 100mA,
T=0
oC to +70oC
75
100
125
mA
ICHG
Nominal Fast charge current
range
16 steps
47.5
525
mA
∆ICHG
Fast charge current tolerance
ICHG = 525mA,
T=0
oC to +70oC
495
525
560
mA
VFLT
Float voltage range
20mV steps
4.020
4.400
V
∆VFLT
Float voltage tolerance
T=+10
oC to +50oC, V
FLT =
4.2V
-1
+1
%
VDO
Dropout voltage
ICHG =100mA
55
mV
ITERM
Charge termination current
range
16 steps
25
250
mA
∆ITERM
Termination current tolerance
ITERM =55mA, T=0
oC to +70oC
35
55
70
mA
VRECH
Recharge threshold voltage
115
mV
VCH
Charge threshold voltage
range after power applied
3 steps, VBATT < VFLT - VCH
220
550
mV
ITHERM
Thermistor current
3 settings
10
100
µA
∆ITHERM
Thermistor current tolerance
ITHERM=100µA, T=0
oC to
+70
oC
90
100
110
µA
THI
Charge cutoff temp (high)
Adjustable, conditions per
typical application
30
65
oC
TLO
Charge cutoff temp (low)
Adjustable, conditions per
typical application
-20
15
oC
Note 1: Voltage and current accuracies are only guaranteed for factory-programmed settings. Changing the output voltage from that reflected in the
customer specific CSIR code will result in inaccuracies exceeding those specified above.
Note 2: The SMB239 device is not intended to function as a battery pack protector. Battery packs used in conjunction with this device need to provide
adequate internal protection and to comply with the corresponding battery pack specifications.


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