AT1457 Datasheet, PDF (4/12 Pages) List of Unclassifed Manufacturers – 1-CELL LITHIUM AND LITHIUM POLYMER CHARGE MANAGEMENT IC

AT1457
Preliminary Product Information
1-Cell Lithium-Ion And Lithium-Polymer
Charge Management IC
Electrical Characteristics
(VIN=4.5V to 7V, TA=-20°C to +85°C unless otherwise noted. Typical value are at TA=+25°C)
Parameter
Symbol
Condition
Values
Unit
V_CC Current
Entire device
Battery Voltage
Regulation
V_CC Sleep current
Input bias current on
BAT pin
Input bias current on
SNS pin
Input bias current on
TS pin
Output voltage
Current Regulation
Current regulation
threshold
Charge Termination
Detection
Charge termination
current detect
threshold
Temperature
Comparator
Precharge
Comparator
Lower temperature
threshold
Upper temperature
threshold
Precharge threshold
Precharge current Precharge current
regulation
regulation
V_RCH Comparator
(Battery Recharge
Threshold)
STAT PIN
Recharge
threshold
Output (low) voltage
Output (high) voltage
I_(VCC)
I_(VCCS)
V_CC > V_CC(min),
Excluding external
loads
V_(BAT) ≥ V_(min),
V_(BAT) - V_CC ≥ 0.8V
I_IB(BAT) V_(BAT) = V_(REG)
Min. Typ. Max.
-- 2 4 mA
-- 3 6 µA
-- -- 1 µA
I_IB(SNS) V_(SNS) = 5 V
-- -- 5 µA
I_IB(TS) V_(TS) = 5 V
-- -- 5 µA
V_O(REG)
--
V_(SNS)
High-side current
sensing configuration
Low-side current
sensing configuration
4.059 4.10 4.141 V
4.158 4.20 4.242 V
95.4 105 115.5 mV
100 110 121 mV
Voltage at pin SNS,
relative to V_CC for high-
V_(TERM) ^{side sensing, and to Vss} 4
for low-side sensing, 0
℃≤T_A≤50℃
14 24 mV
V_(TS1)
V_(TS2)
TS pin voltage
29.1 30 30.9 %Vcc
58.3 60 61.8 %Vcc
V_(min)
--
2.94 3 3.06 V
3.04 3.1 3.16 V
Voltage at pin SNS,
relative to V_CC for high-
side sensing, and to V_{SS -- 13 -- mV}
for low-side sensing, 0
V_{( PRECHG)} ℃≤T_A≤50℃
Voltage at pin SNS,
relative to V_CC for high-
side sensing,
3
13 22 mV
0℃≤T_A≤50℃, V_CC=5V
V_(RCH)
--
V_O(REG)
-98mV
V_O(REG)
-
100mV
V_O(REG)
-
102mV
V
V_OL(STAT) I_OL = 10 mA
V_OH(STAT) I_OH = 5 mA
-- -- 0.7 V
V_CC-
0.5
--
--
V
2F, No.10, Prosperity RD. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C.
Tel: [phone]
WWW: http://www.aimtron.com.tw
Fax: [phone]
Email: [e-mail]
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