APM8601 Datasheet, PDF (5/14 Pages) Diodes Incorporated – DUAL CHANNEL SINGLE CELL LINEAR LITHIUM BATTERY CHARGER WITH 28V

APM8601
DUAL CHANNEL SINGLE CELL LINEAR LITHIUM BATTERY
CHARGER WITH 28V OVP and PROGRAMMABLE CHARGE
TIMER
Electrical Characteristics
APM8601 is tested at V_DC = V_USB = 5V, V_BAT = 4V, V _EN = 0V, R_SETI = 2kΩ, C_CT = 68nF, at an ambient temperature of +25°C
unless otherwise noted.
Symbol
Parameter
Test Conditions
Min
Typ.
Max Unit
V_DC/V_USB Input Voltage Range
0
28
V
V_DC/V_USB Input Operating Range (Note 5)
4.15
7.00
V
UVLO
Input Undervoltage Lock Out
(Note 5)
Input rising, 500mV
hysteresis (typ.) V_BAT = 3.2V
3.85
4.0
4.15
V
OVLO
Input Overvoltage Lock Out
Input rising, 200mV
hysteresis (typ.)
7.2
7.5
7.8
V
I_DC/USB
Input Supply Current
I_BAT = 0mA, R_THM = 10kΩ
750
1200
µA
I_SHTDWN
Shutdown Current
EN = High, TA = 25ºC
275
435
µA
R_{DS_ON}
Input to BAT On-Resistance
Input = 3.7V, V_BAT = 3.6V
0.5
0.8
Ω
V_DROPOUT Input to BAT dropout Voltage
Input falling, 200mV
hysteresis (typ.)
5
55
150
mV
V_{BAT_REG} Battery Voltage Regulation
I_BAT = 0mA, T_A = 25ºC
4.179
4.2
4.221
V
BAT_RSTTH
Battery Fast-Charge Restart
Threshold
From BAT regulation
voltage
-230
-175
-110
mV
R_SETI = 1.5kΩ
950
1000
1140
I_{DC_CHG}
DC Charge Current
V_USB = 0V
R_SETI = 2.0kΩ
R_SETI = 5.0kΩ
Prequal, R_SETI = 2kΩ,
V_BAT = 2.5V
727
750
280
300
60
75
870
353
mA
95
V_USEL = 5V
450
475
500
I_{USB_CHG}
USB Charge Current
V_DC = 0V
V_USEL = 0V
Prequal, R_SETI = 2kΩ,
V_BAT = 2.5V
75
90
105
mA
60
75
95
SS
Soft-Start Time
Ramp time to fast-charge
1.2
ms
V_{PREQ_TH} BAT Prequel Threshold
V_BAT rising, 180mV
hysteresis (typ.)
2.9
3.0
3.1
V
I_LEAK
BAT Leakage Current
V_DC = V_USB = 0V, V_BAT =
4.2V
0.001
5
µA
R_SETI
Resistance Range for SETI
Guaranteed by charging
current
1.5
5.0
kΩ
Note:
5. Guaranteed by testing of undervoltage- and overvoltage-threshold. To completely charge a battery cell, the input voltage must be greater than 4.32V.
APM8601
Document number: DS35138 Rev. 1 - 2
5 of 14
www.diodes.com
December 2010
© Diodes Incorporated