ADP3804

–4–

REV. PrI

PRELIMINAR

Y

TECHNICAL

DA

TA

ABSOLUTE MAXIMUM RATINGS*

Input Voltage (VCC to GND) . . . . . . . . . . . –0.3 V to +25 V

SYS+, SYS– to GND . . . . . . . . . . . . . . . . . . . . –25 V to +25 V

BST to PGND . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +30 V

BST to SW . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +8 V

SW to PGND . . . . . . . . . . . . . . . . . . . . . . . . . . –4 V to +25 V

DRVL to PGND . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +8 V

ISET, ADJ, CCCV,

SD, SYNC, CT,

LIMIT, ISYS TO GND . . . . . . . . . . . . . . . . –0.3 V to +10 V

COMP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +3 V

GND to PGND . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +0.3 V

Operating Ambient Temperature Range . . . . . . 0°C to 100°C

q

JA

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115°C/W

Operating Junction Temperature Range . . . . . 0°C to +125°C

Storage Temperature Range . . . . . . . . . . . . –65°C to +150°C

Lead Temperature Range (Soldering 10 sec) . . . . . . +300°C

NOTES

*This is a stress rating only and functional operation of the device at these or any

other conditions above those indicated in the operation section of this specifi-

cation is not implied. Exposure to absolute maximum rating conditions for

extended periods may affect device reliability.

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

device features proprietary ESD protection circuitry, permanent damage may occur on devices

subjected to high energy electrostatic discharges. Therefore, proper ESD precautions are recom-

mended to avoid performance degradation or loss of functionality.

PIN FUNCTION DESCRIPTIONS

Pin

Number

Mnemonic

Function

1

VCC

Supply Voltage.

2

SYS–

Negative System Current Sense

Input.

3

SYS+

Positive System Current Sense

Input.

4

ISYS

System Current Sense Output.

5

LIMIT

System Current Sense Limit Out-

put.

6

CT

Oscillator Timing Capacitor.

7

SYNC

Oscillator Synchronization Pin.

8

REG

6.0 V Analog Regulator Output.

9

REF

2.5 V Precision Reference Output.

10

SD

Shutdown Control Input.

11

COMP

External Compensation Node.

12

CCCV

Constant Current/Constant Voltage

Output.

13

AGND

Analog Ground.

14

BAT

Battery Sense Input. 2.5 V for

ADP3804, 12.525 V for ADP3804-

12.5 or 12.6 V for ADP3804-12.6

15

ADJ

Battery Voltage Adjust Input.

16

ISET

Charge Current Program Input.

17

CS–

Negative Current Sense Input.

18

CS+

Positive Current Sense Input.

19

PGND

Power Ground.

20

DRVL

Low Drive Output switches be-

tween REG and PGND.

21

BSTREG

7.0 V Regulator Output for Boost.

22

BST

Floating Bootstrap Supply for

DRVH.

23

DRVH

High Drive Output switches be-

tween SW and BST.

24

SW

Buck Switching Node Reference for

DRVH.

PIN CONFIGURATION

24 Lead TSSOP

ORDERING GUIDE

Battery

Package

Package

Model

Voltage

Description

Option

ADP3804JRU

Adjustable

TSSOP-24

RU-24

ADP3804JRU-12.5

12.525 V

TSSOP-24

RU-24

ADP3804JRU-12.6

12.600 V

TSSOP-24

RU-24

14

13

12

11

16

15

10

9

8

1

2

3

4

7

6

5

ADP3804

TOP VIEW

(Not to Scale)

SYS+

BST

DRVH

SW

VCC

SYS–

ISYS

LIMIT

PGND

DRVL

BSTREG

BAT

COMP

CT

SYNC

REG

REF

SD

AGND

CCCV

ISET

CS–

CS+

ADJ

17

18

19

20

21

22

23

24