ADP3522
ABSOLUTE MAXIMUM RATINGS*
PIN FUNCTION DESCRIPTIONS
Voltage on Any Pin with Respect to
Pin
1
Mnemonic
SIMEN
Description
Any GND Pin . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +10 V
Voltage on Any Pin May Not Exceed VBAT, with the Following
Exceptions: CHRIN, BASE, ISENSE
Storage Temperature Range . . . . . . . . . . . . . –65∞C to +150∞C
Operating Ambient Temperature Range . . . . . –20∞C to +85∞C
Maximum Junction Temperature . . . . . . . . . . . . . . . . . 125∞C
JA, Thermal Impedance (LFCSP 5 mm ϫ 5 mm)
4-Layer JEDEC PCB . . . . . . . . . . . . . . . . . . . . . . . . . . 32∞C/W
2-Layer SEMI PCB . . . . . . . . . . . . . . . . . . . . . . . . . . 108∞C/W
Lead Temperature Range (Soldering, 60 sec.) . . . . . . . . 300∞C
SIM LDO Enable
RTC LDO Input Voltage
2
VRTCIN
VRTC
3
Real-Time Clock Supply/
Coin Cell Battery Charger
4
5
6
7
8
BATSNS
MVBAT
CHRDET
CHRIN
Battery Voltage Sense Input
Divided Battery Voltage Output
Charge Detect Output
Charger Input Voltage
*Stresses above those listed under Absolute Maximum Ratings may cause perma-
nent damage to the device. This is a stress rating only; functional operation of the
device at these or any other conditions above those listed in the operational
sections of this specification is not implied. Exposure to absolute maximum rating
conditions for extended periods may affect device reliability. Absolute maximum
ratings apply individually only, not in combination. Unless otherwise specified all
other voltages are referenced to GND.
SIMVSEL
Programs VSIM Output;
Low: 1.8 V
9
GATEDR
GATEIN
Charger Drive Output
10
Microprocessor Charger Gate
Control Input
11
DGND
ISENSE
EOC
Digital Ground
ORDERING GUIDE
Memory
12
Charge Current Sense Input
End of Charge Output
Charge Enable Control Input
Reset Delay Time
13
LDO
Output
Temperature
Range
Package
Option
14
CHGEN
RESCAP
RESET
NC
Model
15
ADP3522ACP-3
ADP3522ACP-1.8
2.80 V
1.80 V
–20∞C to +85∞C CP-32
–20∞C to +85∞C CP-32
16
Main Reset, Open Drain
No Connection
17, 24, 32
18
VSIM
SIM LDO Output
PIN CONFIGURATION
19
VBAT2
VMEM
VCORE
VBAT
Battery Input Voltage 2
Memory LDO Output
Digital Core LDO Output
Battery Input Voltage
Analog LDO Output
TCXO LDO Output
Output Reference
20
21
22
23
VAN
SIMEN 1
NC
24
23
PIN 1
INDICATOR
VRTCIN 2
VRTC 3
VAN
22 VBAT
25
VTCXO
REFOUT
AGND
TCXOEN
BATSNS 4
21 VCORE
26
ADP3522
5
TOP VIEW
20
19
MVBAT
VMEM
VBAT2
(Not to Scale)
TOP VIEW
27
Analog Ground
CHRDET 6
CHRIN 7
SIMVSEL 8
18 VSIM
17 NC
28
TCXO LDO Enable and
MVBAT Enable
29
PWRONIN
Power On/Off Signal from
Microprocessor
30
31
PWRONKEY
ROWX
Power On/Off Key
Power Key Interface Output
CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily
accumulate on the human body and test equipment and can discharge without detection. Although the
ADP3522 features proprietary ESD protection circuitry, permanent damage may occur on devices
subjected to high energy electrostatic discharges. Therefore, proper ESD precautions are recommended
to avoid performance degradation or loss of functionality.
–6–
REV. 0