參數(shù)資料
型號： LP3945
廠商： National Semiconductor Corporation
英文描述： Battery Charge Management System
中文描述： 電池充電管理系統(tǒng)
文件頁數(shù)： 4/15頁
文件大?。?/td> 337K
代理商： LP3945
Absolute Maximum Ratings
(Notes 1,
2)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
CHG-IN
BATT, VB
SENSE
, SDA, SCL, EOC,
CHG, EN, BIPB, StopModeEN
Junction Temperature
Storage Temperature
Power Dissipation (Note 3)
0.3V to +6.5V
0.3V to +6V
150C
65C to +150C
1.76W
ESD (Note 4)
Human Body Model
Machine Model
2kV
200V
Operating Ratings
(Notes 1, 2)
CHG-IN
EN, BIPB, StopModeEN
Junction Temperature, T
J
Operating Temperature, T
A
Thermal Resistance,
θ
JA
Maximum Power Dissipation
(T
A
= 85C, (Note 5) )
3.0V to 6.0V
0V to (V
CHG-IN
+0.3V)
40C to +125C
40C to +85C
37C/W
1.08W
Electrical Characteristics
Unless otherwise noted, V
= 5V, V
= 4V, C
= 1μF, C
= 10μF. Typical values and limits appearing in nor-
mal type apply for T
= 25C. Limits appearing in
boldface
type apply over the entire junction temperature range for operation,
T
J
= 40C to +85C. (Notes 6, 7, 8)
Symbol
Parameter
Conditions
Typical
Limit
Units
Min
Max
V
CC
SUPPLY
V
CHG-IN
Input Voltage Range
Operating Range
4.5
4.5
6
6
20
V
Battery Connected
V
CHG-IN
≤
4V
EOC = Low, adaptor connected,
V
BATT
= 4.1V
V
CHG-IN
- V
BATT
(Rising)
V
CHG-IN
- V
BATT
(Falling)
V
CHG-IN
(Rising)
V
CHG-IN
(Falling)
V
CHG-IN
(Rising)
V
CHG-IN
(Falling)
I
BATT
Battery Leakage Current
2
μA
50
150
μA
V
OKTSHD
Adapter OK Trip Point (CHG-IN)
60
50
4.15
3.95
5.9
5.7
160
20
mV
mV
V
V
V
UVLOTSHD
Under Voltage Lock-out Trip
Point
3.8
3.6
4.5
4.3
V
OVLOTSHD
Over Voltage Lock-out Trip Point
V
Thermal Shutdown Temperature
Thermal Shutdown Hysteresis
BATTERY CHARGER—Li ION MODE (MODE = LOW)
Fast Charge Current Range
Fast Charge Current Accuracy
Programmable Charging Current
Step
I
PRE-CHG
Pre-Charge Current
I
EOC
End Of Charge Current Accuracy For I
EOC
= 0.1C, 0.15C or 0.2C
(Note 7)
C
C
I
CHG
500
10
950
+10
mA
%
50
mA
V
BATT
= 2V
50
+20
65
20
mA
%
V
BATT
Battery Regulation Voltage
(For 4.1V Cell) (Default State)
T
J
= 0C to +85C
I
CHARGE
= 10 mA, Mode = Low
T
J
= 40C to +85C
I
CHARGE
= 10 mA, Mode = Low
T
J
= 0C to +85C
I
CHARGE
= 10 mA, Mode = Low
T
J
= 40C to +85C
I
CHARGE
= 10 mA, Mode = Low
V
BATT
Rising, Transition from
Pre-Charge to Full Current
4.1
4.059
4.141
V
4.1
4.038
4.162
Battery Regulation Voltage
(For 4.2V Cell)
4.2
4.158
4.242
4.2
4.137
4.263
V
CHG-Q
Full Charge Qualification
Threshold
3.0
V
L
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4
相關(guān)PDF資料
PDF描述
LP3945ILD Battery Charge Management System
LP3945ILDX Battery Charge Management System
LP3961ES-1.8 800mA Fast Ultra Low Dropout Linear Regulators
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LP3945ILD 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Battery Charge Management System
LP3945ILDX 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Battery Charge Management System
LP3945LD 功能描述:IC MANAGEMENT BATT CHARGE 14-LLP RoHS:否 類別:集成電路 (IC) >> PMIC - 電池管理 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 功能:充電管理 電池化學(xué):鋰離子（Li-Ion）、鋰聚合物（Li-Pol） 電源電壓:3.75 V ~ 6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SC-74A，SOT-753 供應(yīng)商設(shè)備封裝:SOT-23-5 包裝:剪切帶 (CT) 產(chǎn)品目錄頁面:669 (CN2011-ZH PDF) 其它名稱:MCP73831T-2ACI/OTCT
LP3946 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Battery Charge Management System
LP3946ILDX 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Battery Charge Management System
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