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| 型号： | LTC4110EUHF#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 3/52页 |
| 文件大小： | 0K |
| 描述： | IC BATTERY BACKUP MANAGER 38-QFN |
| 标准包装： | 52 |
| 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： | 管件 |
| 产品目录页面： | 1341 (CN2011-ZH PDF) |
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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
Power Input
DCIN
DCOUT
V BAT
I SPLY
Operating Voltage Range
Operating Voltage Range
Operating Voltage Range
Supply Current (I DCIN + I DCOUT ) in Idle Mode
Charge or Calibration Modes
Charge or Calibration Modes
Backup Mode
Backup Mode
l
l
l
l
4.5
4.5
2.7
2.7
2
19
19
19
19
3
V
V
V
V
mA
(Note 4)
I BIDL
Battery Current in Idle Mode (Notes 4 and 5)
30
45
μA
I BBU
I BSD
Battery Current in Backup Mode (Note 5)
Battery Current in Shutdown (Note 5)
V DCIN = 0
V SHDN = V BAT , V DCIN = 0
2
20
3
45
mA
μA
V UVI
V UVD
Undervoltage Lockout Exit Threshold
Undervoltage Lockout Entry Threshold
V DCIN Increasing
V DCIN Decreasing
l
l
3.7
3.4
4
3.7
4.45
4.1
V
V
V UVH
Undervoltage Lockout Hysteresis
400
mV
V DD Regulator
V DD
V DD(MIN)
Output Voltage
Output Voltage
No Load
I DD = –10mA
l
l
4.5
4.25
4.75
5
V
V
Charging Performance
V FTOL
Charge Float Voltage Accuracy
4.20V for Li-Ion. 2.35V for Lead Acid (Note 8)
–0.5
0.5
%
V CHG = GND
–5°C < T A < 85°C (Note10)
–40°C < T A < 85°C
l
–0.8
–1
0.8
1
%
%
V FATOL
Charge Float Voltage Adjust Accuracy
0.3V and –0.3V for Li-Ion Batteries,
l
–2
2
%
0.15V and –0.15V for Lead Acid Batteries
(Note 8)
I BTOL
I PTOL
Bulk Charge Current Accuracy (Note 7)
Preconditioning and Wake-Up Current
V CSP – V CSN =100mV
V BAT ≥ 3.1V
–40°C < T A < 85°C
V BAT ≥ 3.3V (Note 8), V CSP – V CSN = 10mV;
l
–3
–5
–30
3
5
30
%
%
%
Accuracy (Note 7)
Li-Ion and NiMH/NiCd Batteries Only
V BAT ≤ 3.3 (Note 8), V CSP – V CSN = 10mV;
–40
40
%
Li-Ion and NiMH/NiCd Batteries Only
I SKVA
Voltage Error Ampli?er Sink Current at I TH Pin V ITH = 2V
96
μA
I SRCA
Current Error Ampli?er Source Current at I TH
V ITH = 2V
–24
μA
Pin
I SKCA
Current Error Ampli?er Sink Current at I TH Pin V ITH = 2V
24
μA
I VCHG
V CHG Pin Bias Current
V CHG = 1.25V
–100
100
nA
V BC
V BCH
Bulk Charge Threshold Voltage;
V BAT Increasing (Note 8)
Bulk Charge Threshold Voltage Hysteresis;
Li-Ion, V CHG = GND
NiMH/NiCd
Li-Ion, V CHG = GND
2.80
0.84
3.00
0.90
85
3.20
0.96
V
V
mV
V AR
V BAT Decreasing (Note 8)
Auto Recharge Threshold Voltage;
NiMH/NiCd
Standard Li-Ion Only;
40
mV
V ARH
V BAT Decreasing
Auto Recharge Threshold Hysteresis Voltage;
Speci?ed as Percentage of Float Voltage
Standard Li-Ion Only; Speci?ed as
93
95
2
97
%
%
V BAT Increasing
Percentage of Float Voltage
4110fb
3
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