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參數資料
| 型號： | AT1457 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | 1-CELL LITHIUM AND LITHIUM POLYMER CHARGE MANAGEMENT IC |
| 中文描述： | 1節鋰和鋰聚合物充電管理IC |
| 文件頁數： | 4/12頁 |
| 文件大小： | 287K |
| 代理商： | AT1457 |
AT1457
Preliminary Product Information
1-Cell Lithium-Ion And Lithium-Polymer
Charge Management IC
2F, No.10, Prosperity RD. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C.
Tel: 886-3-563-0878 WWW:
http://www.aimtron.com.tw
Fax: 886-3-563-0879 Email:
service@aimtron.com.tw
4
Electrical Characteristics
(VIN=4.5V to 7V, TA=-20
°
C to +85
°
C unless otherwise noted. Typical value are at TA=+25
°
C)
Values
Parameter
Symbol
Condition
Min. Typ. Max.
Unit
V
CC
Current
I
(VCC)
V
>
V
,
Excluding external
loads
V
(BAT)
≥
V
(min)
,
V
(BAT)
- V
CC
≥
0.8V
--
2
4
mA
V
CC
Sleep current
I
(VCCS)
--
3
6
μ
A
Input bias current on
BAT pin
Input bias current on
SNS pin
Input bias current on
TS pin
I
IB(BAT)
V
(BAT)
= V
(REG)
--
--
1
μ
A
I
IB(SNS)
V
(SNS)
= 5 V
--
--
5
μ
A
Entire device
I
IB(TS)
V
(TS)
= 5 V
--
--
5
μ
A
4.059 4.10 4.141
4.158 4.20 4.242
V
V
Battery Voltage
Regulation
Output voltage
V
O(REG)
--
High-side current
sensing configuration
Low-side current
sensing configuration
Voltage at pin SNS,
relative to V
for high-
side sensing, and to Vss
for low-side sensing, 0
℃
≤
T
A
≤
50
℃
95.4
105 115.5 mV
Current Regulation
Current regulation
threshold
V
(SNS)
100
110
121
mV
Charge Termination
Detection
Charge termination
current detect
threshold
V
(TERM)
4
14
24
mV
Lower temperature
threshold
Upper temperature
threshold
V
(TS1)
29.1
30
30.9
%Vcc
Temperature
Comparator
V
(TS2)
TS pin voltage
58.3
60
61.8
%Vcc
2.94
3.04
3
3.06
3.16
V
V
Precharge
Comparator
Precharge threshold
V
(min)
--
3.1
Voltage at pin SNS,
relative to V
CC
for high-
side sensing, and to V
SS
for low-side sensing, 0
℃
≤
T
A
≤
50
℃
Voltage at pin SNS,
relative to V
CC
for high-
side sensing,
0
℃
≤
T
A
≤
50
℃
, V
CC
=5V
--
13
--
mV
Precharge current
regulation
Precharge current
regulation
V
( PRECHG)
3
13
22
mV
V
RCH
Comparator
(Battery Recharge
Threshold)
Recharge
threshold
V
(RCH)
--
V
-98mV
V
O(REG)
100mV
--
V
O(REG)
102mV
0.7
V
Output (low) voltage
V
OL(STAT)
I
OL
= 10 mA
--
V
STAT PIN
Output (high) voltage
V
OH(STAT)
I
OH
= 5 mA
V
CC
-
0.5
--
--
V
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