參數(shù)資料
型號(hào)： LTC4008EGN-1#TRPBF
廠商： LINEAR TECHNOLOGY CORP
元件分類： 穩(wěn)壓器
英文描述： 4A, High Efficiency, Multi-Chemistry Battery Charger; Package: SSOP; No of Pins: 20; Temperature Range: -40°C to +125°C
中文描述： BATTERY CHARGE CONTROLLER, 345 kHz SWITCHING FREQ-MAX, PDSO20
封裝： 0.150 INCH, LEAD FREE, PLASTIC, SSOP-20
文件頁(yè)數(shù)： 18/24頁(yè)
文件大?。?/td> 221K
代理商： LTC4008EGN-1#TRPBF
LTC4008
3
4008fb
ELECTRICAL CHARACTERISTICS The l denotes the specications which apply over the full operating
temperature range, otherwise specications are at TA = 25°C. VDCIN = 20V, VBAT = 12V unless otherwise noted.
SYMBOL PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
DCIN Operating Range
628
V
IQ
Operating Current
Charging Sum of Current from CLP, CLN, DCIN
3
5
mA
VTOL
Voltage Accuracy
(Notes 2, 5)
l
–0.8
–1.0
0.8
1.0
%
BATMON Error (Note 5)
Measured from BAT to BATMON,
RLOAD = 100k
035
80
mV
ITOL
Charge Current Accuracy (Note 3)
VCSP – VBAT Target = 100mV
l
–4
–5
4
5
%
Shutdown
Battery Leakage Current
DCIN = 0V (LTC4008 Only)
ACP/SHDN = 0V
l
–10
20
35
10
μA
UVLO
Undervoltage Lockout Threshold
DCIN Rising, VBAT = 0V
l
4.2
4.7
5.5
V
Shutdown Threshold at ACP/SHDN
l
1
1.6
2.5
V
Operating Current in Shutdown
VSHDN = 0V, Sum of Current from CLP,
CLN, DCIN
23
mA
Current Sense Amplier, CA1
Input Bias Current Into BAT Pin
11.66
μA
CMSL
CA1/I1 Input Common Mode Low
l
0V
CMSH
CA1/I1 Input Common Mode High
VDCIN ≤ 28V
l
VCLN – 0.2
V
VOS
Input Voltage Offset
–3.5
3.5
mV
Current Comparators ICMP and IREV
ITMAX
Maximum Current Sense Threshold (VCSP – VBAT)VITH = 2.5V
l
140
165
200
mV
ITREV
Reverse Current Threshold (VCSP – VBAT)
–30
mV
Current Sense Amplier, CA2
Transconductance
1
mmho
Source Current
Measured at ITH, VITH = 1.4V
–40
μA
Sink Current
Measured at ITH, VITH = 1.4V
40
μA
Current Limit Amplier
Transconductance
1.4
mmho
VCLP
Current Limit Threshold
l
93
100
107
mV
ICLN
CLN Input Bias Current
100
nA
Voltage Error Amplier, EA
Transconductance
1
mmho
VREF
Reference Voltage Used to Calculate VFLOAT
1.19
V
IBEA
Input Bias Current
±4
±25
nA
Sink Current
Measured at ITH, VITH = 1.4V
36
μA
OVSD
Overvoltage Shutdown Threshold as a Percent of
Programmed Charger Voltage
l
102
107
110
%
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