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参数资料
| 型号： | LP3946ILD |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | 电源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO14 |
| 文件页数： | 10/15页 |
| 文件大小： | 337K |
| 代理商： | LP3946ILD |
Absolute Maximum Ratings (Notes 1,
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
CHG-IN
0.3V to +6.5V
BATT, VB
SENSE, SDA, SCL, EOC,
CHG, EN, BIPB, StopModeEN
0.3V to +6V
Junction Temperature
150C
Storage Temperature
65C to +150C
Power Dissipation (Note 3)
1.76W
ESD (Note 4)
Human Body Model
Machine Model
2kV
200V
Operating Ratings (Notes 1, 2)
CHG-IN
3.0V to 6.0V
EN, BIPB, StopModeEN
0V to (V
CHG-IN+0.3V)
Junction Temperature, T
J
40C to +125C
Operating Temperature, T
A
40C to +85C
Thermal Resistance,
θ
JA
37C/W
Maximum Power Dissipation
(T
A = 85C, (Note 5) )
1.08W
Electrical Characteristics
Unless otherwise noted, V
CHG-IN = 5V, VBATT = 4V, CCHG-IN = 1F, CBATT = 10F. 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 6, 7, 8)
Symbol
Parameter
Conditions
Typical
Limit
Units
Min
Max
V
CC SUPPLY
V
CHG-IN
Input Voltage Range
4.5
6
V
Operating Range
Battery Connected
4.5
6
I
BATT
Battery Leakage Current
V
CHG-IN
≤ 4V
2
20
A
EOC = Low, adaptor connected,
V
BATT
= 4.1V
50
150
A
V
OKTSHD
Adapter OK Trip Point (CHG-IN)
V
CHG-IN -VBATT (Rising)
60
mV
V
CHG-IN -VBATT (Falling)
50
mV
V
UVLOTSHD
Under Voltage Lock-out Trip
Point
V
CHG-IN (Rising)
4.15
3.8
4.5
V
CHG-IN (Falling)
3.95
3.6
4.3
V
OVLOTSHD
Over Voltage Lock-out Trip Point
V
CHG-IN (Rising)
5.9
V
CHG-IN (Falling)
5.7
Thermal Shutdown Temperature
160
C
Thermal Shutdown Hysteresis
20
C
BATTERY CHARGER — Li ION MODE (MODE = LOW)
I
CHG
Fast Charge Current Range
500
950
mA
Fast Charge Current Accuracy
10
+10
%
Programmable Charging Current
Step
50
mA
I
PRE-CHG
Pre-Charge Current
V
BATT =2V
50
65
mA
I
EOC
End Of Charge Current Accuracy For I
EOC = 0.1C, 0.15C or 0.2C
+20
20
%
V
BATT
Battery Regulation Voltage
(For 4.1V Cell) (Default State)
T
J = 0C to +85C
I
CHARGE = 10 mA, Mode = Low
4.1
4.059
4.141
V
T
J = 40C to +85C
I
CHARGE = 10 mA, Mode = Low
4.1
4.038
4.162
Battery Regulation Voltage
(For 4.2V Cell)
T
J = 0C to +85C
I
CHARGE = 10 mA, Mode = Low
4.2
4.158
4.242
T
J = 40C to +85C
I
CHARGE = 10 mA, Mode = Low
4.2
4.137
4.263
V
CHG-Q
Full Charge Qualification
Threshold
V
BATT Rising, Transition from
Pre-Charge to Full Current
3.0
V
LP3945/LP3946
www.national.com
4
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LP3946ILDX | 制造商:NSC 制造商全称:National Semiconductor 功能描述:Battery Charge Management System |
| LP3946LD | 制造商:Rochester Electronics LLC 功能描述:STANDALONE CC/CV LIION BATTERY - Bulk |
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| LP3947 | 制造商:NSC 制造商全称:National Semiconductor 功能描述:USB/AC Adaptor, Single Cell Li-Ion Battery Charger IC |
| LP3947ISD-09 | 功能描述:电池管理 RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel |
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