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| 型号： | LTC4007EGN#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 3/24页 |
| 文件大小： | 0K |
| 描述： | IC BATT CHARGER CTRLR 4A 24SSOP |
| 标准包装： | 55 |
| 功能： | 充电管理 |
| 电池化学： | 锂离子（Li-Ion） |
| 电源电压： | 6 V ~ 28 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 24-SSOP（0.154"，3.90mm 宽） |
| 供应商设备封装： | 24-SSOP |
| 包装： | 管件 |
| 产品目录页面： | 1341 (CN2011-ZH PDF) |
LTC4007
ELECTRICAL CHARACTERISTICS The l denotes the speci?cations which apply over the full operating
temperature range (Note 4), otherwise speci?cations are at T A = 25°C. V DCIN = 20V, V BAT = 12V unless otherwise noted.
SYMBOL PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Current Sense Ampli?er, CA1
Input Bias Current Into BAT Pin
11.67
μA
CMSL CA1/I 1 Input Common Mode Low
CMSH CA1/I 1 Input Common Mode High
l
l
0
V CLN – 0.2
V
V
Current Comparators I CMP and I REV
I TMAX
Maximum Current Sense Threshold (V CSP – V BAT )
V ITH = 2.5V
l
140
165
200
mV
I TREV
Reverse Current Threshold (V CSP – V BAT )
–30
mV
Current Sense Ampli?er, CA2
Transconductance
1
mmho
Source Current
Sink Current
Measured at I TH , V ITH = 1.4V
Measured at I TH , V ITH = 1.4V
–40
40
μA
μA
Current Limit Ampli?er
Transconductance
1.4
mmho
V CLP
Current Limit Threshold
l
93
100
107
mV
I CLP
CLP Input Bias Current
100
nA
Voltage Error Ampli?er, EA
Transconductance
1
mmho
Sink Current
Measured at I TH , V ITH = 1.4V
36
μA
OVSD Overvoltage Shutdown Threshold as a Percent of
l
102
107
110
%
Programmed Charger Voltage
Input P-Channel FET Driver (INFET)
DCIN Detection Threshold (V DCIN – V CLN )
DCIN Voltage Ramping Up
l
0
0.17
0.25
V
from V CLN – 0.1V
Forward Regulation Voltage (V DCIN – V CLN )
l
25
50
mV
Reverse Voltage Turn-Off Voltage (V DCIN – V CLN )
DCIN Voltage Ramping Down
l
–60
–25
mV
INFET “On” Clamping Voltage (V DCIN – V INFET )
I INFET = 1μA
l
5
5.8
6.5
V
INFET “Off” Clamping Voltage (V DCIN – V INFET )
I INFET = –25μA
0.25
V
Thermistor
NTCVR Reference Voltage During Sample Time
4.5
V
High Threshold
V NTC Rising
l
NTCVR
NTCVR
NTCVR
V
? 0.48
? 0.5
? 0.52
Low Threshold
V NTC Falling
l
NTCVR
NTCVR
NTCVR
V
? 0.115
? 0.125
? 0.135
Thermistor Disable Current
V NTC ≤ 10V
10
μA
Indicator Outputs (ACP, CHG, FLAG, LOBAT , I CL , FAULT
C10TOL
LBTOL
FLAG (C/10) Accuracy
LOBAT Threshold Accuracy
RESTART Threshold Accuracy
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
l
l
l
l
l
l
l
l
l
0.375
7.10
7.27
9.46
9.70
11.13
11.40
14.84
15.20
0.397
7.32
7.50
9.76
10
11.42
11.70
15.23
15.60
0.420
7.52
7.71
10.10
10.28
11.65
11.94
15.54
15.92
V
V
V
V
V
V
V
V
V
I CL Threshold Accuracy
83
93
1O5
mV
4007fc
3
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