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参数资料
| 型号： | LTC4110EUHF#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 4/52页 |
| 文件大小： | 0K |
| 描述： | IC BATTERY BACKUP MANAGER 38-QFN |
| 标准包装： | 2,500 |
| 功能： | 备份管理 |
| 电池化学： | 铅酸，锂离子，锂聚合物，镍镉，镍氢，超级电容器 |
| 电源电压： | 4.5 V ~ 19 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 38-WFQFN 裸露焊盘 |
| 供应商设备封装： | 38-QFN（5x7） |
| 包装： | 带卷 (TR) |
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LTC4110
ELECTRICAL CHARACTERISTICS The l denotes the speci?cations which apply over the full operating
temperature range, otherwise speci?cations are at T A = 25°C. Unless otherwise speci?ed, V DCIN = V DCOUT = V DCDIV = 12V, V BAT = 8.4V,
GND = SGND = CLP = CLN = SHDN = 0V and R VREF = 49.9k. All currents into device pins are positive and all currents out of device pins
are negative. All voltages are referenced to GND, unless otherwise speci?ed.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
V BOV
Battery Overvoltage Threshold;
All Li-Ion, Lead Acid as Percentage of
V BAT Increasing
Float Voltage
NiMH/NiCd (Note 8)
105
1.80
107.5
1.85
110
1.90
%
V
V BOVH
Battery Overvoltage Threshold Hysteresis;
All Li-Ion, Lead Acid as Percentage of
V BAT Increasing.
Float Voltage
NiMH/NiCd (Note 8)
2
40
%
mV
V REF
Reference Pin Voltage Range
l
1.208
1.220
1.232
V
F TMR
t TIMEOUT
Programmed Timer Accuracy
Time Between Receiving Valid
C TIMER = 47nF
l
l
–15
140
0
175
15
210
%
sec
ChargingCurrent() and ChargingVoltage()
Commands. Wake-Up Timer.
Calibration Performance
V CTOL
Calibration Cut-Off Default Voltage Accuracy;
V BAT Decreasing
2.75V for Li-Ion, 1.93V for Lead Acid,
V CAL = GND (Note 8), 0.95V for NiMH/NiCd
l
–1.1
–1.3
1.1
1.3
%
%
V CTOLH
Calibration Cut-Off Default Voltage Hysteresis; Li-Ion
85
mV
V BAT Increasing. (Note 8)
Lead Acid
NiMH/NiCd
50
40
mV
mV
V CATOL
Calibration Cut-Off Voltage Adjust Accuracy
±400mV for Li-Ion, ±300mV for Lead Acid,
l
–1.5
1.5
%
±200mV for NiMH/NiCd (Note 8)
I FTOL
I VCAL
Calibration Current Accuracy (Note 7)
V CAL Pin Leakage Current
V CSP – V CSN = –100mV
V CAL = 1.25V
l
–5
–100
5
100
%
nA
I BDT
Back-Drive Current Limit Threshold
V CLP – V CLN Decreasing
l
7
10
13
mV
V CLN = V DCIN
I BDH
Back-Drive Current Limit Threshold Hysteresis V CLP – V CLN Increasing
1
mV
V CLN = V DCIN
V OVP
Calibration Mode Input Overvoltage
V DCDIV Rising
l
1.4
1.5
1.6
V
Comparator DCDIV Pin Threshold
V OVPH
Calibration Mode Input Overvoltage
V DCDIV Falling
100
mV
Comparator DCDIV Pin Hysteresis
AC Present and Discharge Cut-Off Comparators
V AC
AC Present Comparator DCDIV Pin Threshold
V DCDIV Falling
l
1.196
1.22
1.244
V
V ACH
I AC
AC Present Comparator DCDIV Pin Hysteresis
AC Present Comparator DCDIV Pin Input Bias
V DCDIV Rising
V DCDIV = 1.25V
50
100
mV
nA
Current
t AC
ACPb Pin Externally Programmed Falling Delay C ACPDLY = 100nF, R VREF = 49.9k,
V DCDIV Stepped From 1.17V to 1.30V
8
10
12
ms
V DTOL
Discharge Cut-Off Default Voltage Accuracy;
2.75V for Li-Ion, 1.93V for Lead Acid,
l
–1.5
1.5
%
V BAT Decreasing
V DIS = GND, 0.95V for NiMH/NiCd
V DTOLH
Discharge Cut-Off Default Voltage Hysteresis;
V BAT Increasing (Note 8)
Li-Ion
Lead acid
NiMH/NiCd
85
50
40
mV
mV
mV
V DATOL
Discharge Cut-Off Voltage Adjust Accuracy
±400mV for Li-Ion, ±300mV for Lead Acid,
l
2
2
%
±200mV for NiMH/NiCd
I VDIS
V DIS Pin Bias Current
V DIS = 1.25V
–100
100
nA
4110fb
4
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