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參數(shù)資料
| 型號： | LP3947 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | USB/AC Adaptor, Single Cell Li-Ion Battery Charger IC |
| 中文描述： | 的USB / AC適配器，單節(jié)鋰離子電池充電器IC |
| 文件頁數(shù)： | 4/14頁 |
| 文件大小： | 649K |
| 代理商： | LP3947 |
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
All pins except GND and CHG-IN
(Note 3)
Junction Temperature
Storage Temperature
Power Dissipation (Note 4)
ESD (Note 5)
Human Body Model
Machine Model
0.3V to +6.5V
0.3V to +6V
150C
40C to +150C
1.89W
2 kV
200V
Operating Ratings
(Notes 1, 2)
CHG-IN
EN, ISEL, MODE, SCL, SDA,
V
T
(Note 3)
Junction Temperature
Operating Temperature
Thermal Resistance
θ
JA
Maximum Power Dissipation
(Note 6)
0.3V to 6.5V
0V to 6V
40C to +125C
40C to +85C
37C/W
1.21W
Electrical Characteristics
Unless otherwise noted, V
CHG-IN
= 5V, V
BATT
= 4V, C
= 1 μF, C
BATT
= 10 μF. Typical values and limits appearing in nor-
mal type apply for T
J
= 25C. Limits appearing in
boldface
type apply over the entire junction temperature range for operation,
T
J
= 40C to +85C. (Notes 7, 8, 9)
Symbol
Parameter
Conditions
Typ
Limit
Units
Min
Max
V
CC
SUPPLY
V
CHG-IN
V
USB
I
CC
Input Voltage Range
4.5
4.3
6
6
20
V
Quiescent Current
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)
(Note 8)
2
μA
50
150
V
OK-TSHD
Adaptor OK Trip Point (CHG-IN)
60
50
3.95
3.75
5.9
5.7
160
20
mV
mV
V
V
V
UVLO-TSHD
Under Voltage Lock-Out Trip Point
3.6
3.4
4.3
4.1
V
OVLO-TSHD
Over Voltage Lock-Out Trip Point
V
Thermal Shutdown Temperature
Thermal Shutdown Hysteresis
BATTERY CHARGER
I
CHG
Fast Charge Current Range
C
ISEL = High, In USB Mode
ISEL = Low, In USB Mode
In AC Adaptor Mode
I
CHARGE
= 100 mA or 150 mA
I
CHARGE
≥
200 mA
V
BATT
= 2V
100 mA to 450 mA, 0.1C EOC Only
(Note 10)
500 mA to 750 mA, All EOC Points
T
J
= 0C to +85C
T
J
= 40C to +85C
T
J
= 0C to +85C
T
J
= 40C to +85C
V
BATT
Rising, Transition from
Pre-Charge to Full Current
100
500
mA
100
20
10
45
750
+20
+10
70
Fast Charge Current Accuracy
mA
%
mA
I
PRE-CHG
I
EOC
Pre-Charge Current
End of Charge Current Accuracy
10
+10
mA
20
4.059
4.038
4.158
4.137
+20
4.141
4.162
4.242
4.263
%
V
BATT
Battery Regulation Voltage (For 4.1V
Cell)
4.1
4.1
4.1
4.2
V
Battery Regulation Voltage (For 4.2V
Cell)
V
CHG-Q
Full Charge Qualification Threshold
3.0
V
L
www.national.com
4
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LP3947ISD-09 | 功能描述:電池管理 RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel |
| LP3947ISD-09/NOPB | 功能描述:電池管理 RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel |
| LP3947ISD-51 | 功能描述:電池管理 RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel |
| LP3947ISD-51/NOPB | 功能描述:電池管理 RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel |
| LP3947ISD-51EV | 功能描述:電源管理IC開發(fā)工具 LP3947 EVAL BOARD RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
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