AS3525-A/-B C22O22
Data Sheet, Confidential
7.4.15.4 Parameter
Table 139 Charger Parameter
Symbol
Parameter
Notes
Min
37
Typ
68
Max
111
Unit
mA
mA
V
ICHG_trick Charging Current
(trickle charge)
BVDD<=3V, CHG_IN = 5.5V
BVDD<=3V, CHG_IN = 4.0V
17
32
55
VCHG_trick Charger Endpoint Voltage (trickle BVDD<=3V, CHG_IN = 4.4V
charge)
0.70*
0.72*
0.74*
CHG_IN CHG_IN CHG_IN
ICHG (0-7) Charging Current
BVDD > 3V
INOM
-20%
VNOM
INOM
INOM
+20%
VNOM
+30mV
4.0
mA
V
VCHG (0-7) Charging Voltage
BVDD > 3V, end of charge is true
VNOM
-50mV
VON_ABS Charger On Voltage IRQ
VON_REL Charger On Voltage IRQ
VOFF_REL Charger Off Voltage IRQ
BVDD = 3V
3.1
170
77
V
CHG_IN-CHG_OUT
CHG_IN-CHG_OUT
240
mV
mV
mV
mV
mA
40
VBATEMP_ON Battery Temp. high level (55°C) BVDD >3V
380
480
400
500
420
520
VBATEMP_OFF Battery Temp. low level (50°C)
ICHG_OFF End Of Charge current level
BVDD >3V
BVDD >3V
5%
INOM
160
10%
INOM
336
15%
INOM
420
IREV_OFF Reverse current shut down
BVDD = 5V, CHG_IN open
nA
BVDD=3.6V; Tamb=25ºC; unless otherwise specified
7.4.15.5 Register Description
Charger Related Register
Name
Base
Offset
Description
IRQ_ENRD_0
I2C audio master
0x25
Enable/disable EOC and battery over-temperature interrupt
Read out charger status
Table 140 Charger Register
Name
Base
Default
0x00
Charger
I2C audio master
Charger Register
This register is reset at a DVDD-POR.
Offset: 0x22
Bit
Bit Name
TMPSup_off
Default
Access
Bit Description
7
0
R/W
0: enables 15uA supply for external 100k NTC resistor
1: disables supply
set maximum charging current
111: 400 mA
110: 350 mA
..
001: 100 mA
000: 50 mA
set maximum charger voltage
111: 4.25 V
110: 4.2 V
6:4
3:1
0
CHG_I
000
000
0
R/W
R/W
R/W
CHG_V
CHG_OFF
..
001: 3.95 V
000: 3.9 V
0: enables Charger
1: disables Charger
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