Diodes APM8601 - Manual (Page 5)

APM8601
DUAL CHANNEL SINGLE CELL LINEAR LITHIUM BATTERY
CHARGER WITH 28V OVP and PROGRAMMABLE CHARGE
TIMER
APM8601
Document number: DS35138 Rev. 1 - 2
5 of 14
www.diodes.com
December 2010
© Diodes Incorporated
NEW PROD
UC
T
Electrical Characteristics
APM8601 is tested at V
DC
= V
USB
= 5V, V
BAT
= 4V, V
EN
= 0V, R
SETI
= 2k Ω, C
CT
= 68nF, at an ambient temperature of +25°C
unless otherwise noted.
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.
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
= 10k Ω 750 1200 µA
I
SHTDWN
Shutdown Current
EN
= High, T
A
= 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
I
DC_CHG
DC Charge Current
V
USB
= 0V
R
SETI
= 1.5k Ω 950 1000 1140
mA
R
SETI
= 2.0k Ω 727 750 870
R
SETI
= 5.0k Ω 280 300 353
Prequal, R
SETI
= 2k Ω,
V
BAT
= 2.5V
60 75 95
I
USB_CHG
USB Charge Current
V
DC
= 0V
V
USEL
= 5V 450 475 500
mA
V
USEL
= 0V 75 90 105
Prequal, R
SETI
= 2k Ω,
V
BAT
= 2.5V
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 k Ω