REV. 0

–6–

ADP3522

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.

ABSOLUTE MAXIMUM RATINGS

*

Voltage on Any Pin with Respect to

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

5 mm)

4-Layer JEDEC PCB . . . . . . . . . . . . . . . . . . . . . . . . . . 32

∞C/W

2-Layer SEMI PCB . . . . . . . . . . . . . . . . . . . . . . . . . . 108

∞C/W

Lead Temperature Range (Soldering, 60 sec.) . . . . . . . . 300

∞C

*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.

PIN CONFIGURATION

TOP VIEW

(Not to Scale)

1

2

3

4

5

6

7

TOP VIEW

ADP3522

8

24

23

22

21

20

19

18

17

PIN 1

INDICATOR

SIMEN

VRTCIN

VRTC

BATSNS

MVBAT

CHRDET

CHRIN

SIMVSEL

NC

VAN

VBAT

VCORE

VMEM

VBAT2

VSIM

NC

ORDERING GUIDE

Memory

LDO

Temperature

Package

Model

Output

Range

Option

ADP3522ACP-3

2.80 V

–20

∞C to +85∞C CP-32

ADP3522ACP-1.8

1.80 V

–20

∞C to +85∞C CP-32

PIN FUNCTION DESCRIPTIONS

Pin

Mnemonic

Description

1

SIMEN

SIM LDO Enable

2

VRTCIN

RTC LDO Input Voltage

3

VRTC

Real-Time Clock Supply/

Coin Cell Battery Charger

4

BATSNS

Battery Voltage Sense Input

5

MVBAT

Divided Battery Voltage Output

6

CHRDET

Charge Detect Output

7

CHRIN

Charger Input Voltage

8

SIMVSEL

Programs VSIM Output;

Low: 1.8 V

9

GATEDR

Charger Drive Output

10

GATEIN

Microprocessor Charger Gate

Control Input

11

DGND

Digital Ground

12

ISENSE

Charge Current Sense Input

13

EOC

End of Charge Output

14

CHGEN

Charge Enable Control Input

15

RESCAP

Reset Delay Time

16

RESET

Main Reset, Open Drain

17, 24, 32

NC

No Connection

18

VSIM

SIM LDO Output

19

VBAT2

Battery Input Voltage 2

20

VMEM

Memory LDO Output

21

VCORE

Digital Core LDO Output

22

VBAT

Battery Input Voltage

23

VAN

Analog LDO Output

25

VTCXO

TCXO LDO Output

26

REFOUT

Output Reference

27

AGND

Analog Ground

28

TCXOEN

TCXO LDO Enable and

MVBAT Enable

29

PWRONIN

Power On/Off Signal from

Microprocessor

30

PWRONKEY

Power On/Off Key

31

ROWX

Power Key Interface Output