參數(shù)資料
型號: LTC1960
廠商: Linear Technology Corporation
英文描述: 4A, High Efficiency, Standalone Li Battery Charger
中文描述: 第4A,高效,獨立鋰電池充電器
文件頁數(shù): 3/20頁
文件大?。?/td> 241K
代理商: LTC1960
3
LTC4007
4007i
The
G
denotes specifications which apply over the full operating
temperature range (Note 4), otherwise specifications are at T
A
= 25
°
C. V
DCIN
= 20V, V
BAT
= 12V unless otherwise noted.
ELECTRICAL CHARACTERISTICS
SYMBOL
Current Comparators I
CMP
and I
REV
I
TMAX
Maximum Current Sense Threshold (V
CSP
– V
BAT
)
I
TREV
Reverse Current Threshold (V
CSP
– V
BAT
)
Current Sense Amplifier, CA2
Transconductance
Source Current
Sink Current
Current Limit Amplifier
Transconductance
V
CLP
Current Limit Threshold
I
CLP
CLP Input Bias Current
Voltage Error Amplifier, EA
Transconductance
Sink Current
OVSD
Overvoltage Shutdown Threshold as a Percent
of Programmed Charger Voltage
Input P-Channel FET Driver (INFET)
DCIN Detection Threshold (V
DCIN
– V
CLN
)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
V
ITH
= 2.4V
G
140
165
–30
200
mV
mV
1
mmho
Measured at I
TH
, V
ITH
= 1.4V
Measured at I
TH
, V
ITH
= 1.4V
–40
40
μ
A
μ
A
1.4
100
100
mmho
mV
G
93
107
nA
1
mmho
Measured at I
TH
, V
ITH
= 1.4V
36
107
μ
A
%
G
102
110
DCIN Voltage Ramping Up
from V
CLN
– 0.1V
G
0
0.17
0.25
V
Forward Regulation Voltage (V
DCIN
– V
CLN
)
Reverse Voltage Turn-Off Voltage (V
DCIN
– V
CLN
)
INFET “On” Clamping Voltage (V
DCIN
– V
INFET
)
INFET “Off” Clamping Voltage (V
DCIN
– V
INFET
)
G
25
–25
5.8
50
mV
mV
DCIN Voltage Ramping Down
I
INFET
= 1
μ
A
I
INFET
= –25
μ
A
G
–60
5
G
6.5
0.25
V
V
Thermistor
NTCVR
Reference Voltage During Sample Time
High Threshold
4.5
V
V
V
NTC
Rising
G
NTCVR
0.48
NTCVR
0.115
NTCVR
0.5
NTCVR
0.125
NTCVR
0.52
NTCVR
0.135
10
Low Threshold
V
NTC
Falling
G
V
Thermistor Disable Current
Indicator Outputs (ACP, CHG, FLAG, LOBAT, I
CL
, FAULT
C10TOL
FLAG (C/10) Accuracy
LBTOL
LOBAT Threshold Accuracy
V
NTC
10V
μ
A
Voltage Falling at PROG
3C4C = 0V, CHEM = 0V
3C4C = 0V, CHEM = Open
3C4C = Open, CHEM = 0V
3C4C = Open, CHEM = Open
3C4C = 0V, CHEM = 0V
3C4C = 0V, CHEM = Open
3C4C = Open, CHEM = 0V
3C4C = Open, CHEM = Open
G
0.375
7.10
7.27
9.46
9.70
11.13
11.40
14.84
15.20
83
0.397
7.32
7.50
9.76
10
11.42
11.70
15.23
15.60
93
0.420
7.52
7.71
10.10
10.28
11.65
11.94
15.54
15.92
1O5
V
V
V
V
V
V
V
V
V
G
G
G
G
RESTART Threshold Accuracy
G
G
G
G
I
CL
Threshold Accuracy
mV
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