參數(shù)資料
型號(hào)： 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(yè)數(shù)： 5/14頁(yè)
文件大小： 649K
代理商： LP3947
Electrical Characteristics
(Continued)
Unless otherwise noted, V
= 5V, V
= 4V, C
= 1 μF, C
= 10 μF. 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 7, 8, 9)
Symbol
Parameter
Conditions
Typ
Limit
Units
Min
Max
BATTERY CHARGER
V
BAT-RST
Restart Threshold Voltage
(For 4.1V Cell)
Restart Threshold Voltage
(For 4.2V Cell)
Internal Current Sense Resistance
Internal Current Sense Resistor
Load Current
Diff-Amp Output
V
BATT
Falling, Transition from EOC,
to Pre-Qualification State
V
BATT
Falling, Transition from EOC,
to Pre-Qualification State
(Note 8)
3.9
3.77
4.02
V
4.00
3.86
4.12
R
SENSE
120
m
1.2
A
ICHG
MON
I
CHG
= 50 mA
I
CHG
= 100 mA
I
CHG
= 750 mA
T
J
= 0C to 85C
T
J
= 40C to +85C
EOC, CHG Pins each at 9 mA
0.583
0.663
1.790
5.625
5.625
100
V
t
OUT
Charger Time Out
4.78
4.5
6.42
6.75
Hrs
V
OL
TEMPERATURE SENSE COMPARATORS
V
UTLO
Low Voltage Threshold
Low Level Output Voltage
mV
Voltage at Ts Pin, Rising
Voltage at Ts Pin, Falling
Voltage at Ts Pin, Rising
Voltage at Ts Pin, Falling
Voltage at Ts Pin, % of V
T
2.427
2.369
1.470
1.390
97
2.787
V
V
OTLO
High Voltage Threshold
V
V
LDO
V
T
LDO MODE (Ts = HIGH)
V
OUT
LDO Mode Voltage Threshold
Voltage Output
%
V
Output Voltage Regulation
I
LOAD
= 50 mA
I
LOAD
= 750 mA
4.10
4.06
V
LOGIC LEVELS
V
IL
V
IH
I
IL
Low Level Input Voltage
High Level Input Voltage
Input Current
EN, ISEL, MODE
EN, ISEL, MODE
EN, ISEL = LOW
MODE = LOW
EN, ISEL, MODE = HIGH
0.4
V
V
μA
μA
μA
2.0
10
5
5
+10
+5
+5
I
IH
Input Current
Electrical Characteristics, I
2
C Interface
Unless otherwise noted, V
= V
= 5V, V
= 4V. Typical values and limits appearing in normal type apply for T
=
25C. Limits appearing in
boldface
type apply over the entire junction temperature range for operation, T
J
= 40C to +125C.
(Notes 7, 8, 9)
Symbol
Parameter
Conditions
Typ
Limit
Units
Min
0.4
Max
0.3 V
DD
V
DD
+0.5
0.2 V
DD
V
IL
V
IH
V
OL
V
HYS
F
CLK
t
HOLD
Low Level Input Voltage
High Level Input Voltage
Low Level Output Voltage
Schmitt Trigger Input Hysteresis
Clock Frequency
Hold Time Repeated START
Condition
CLK Low Period
CLK High Period
SDA & SCL (Note 8)
SDA & SCL (Note 8)
SDA & SCL (Note 8)
SDA & SCL (Note 8)
(Note 8)
(Note 8)
V
V
V
V
0.7 V
DD
0
0.1 V
DD
400
kHz
0.6
μs
t
CLK-LP
t
CLK-HP
(Note 8)
(Note 8)
1.3
0.6
μs
μs
L
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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(píng)估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V
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