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производитель

ADP3804JRU

High Frequency Switch Mode Li-Ion Battery Charger

Analog Devices 

ADP3804

ABSOLUTE MAXIMUM RATINGS*

PIN FUNCTION DESCRIPTIONS

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

BAT, CS+, CS– to GND . . . . . . . . . . . . –0.3 V to VCC+0.3 V

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

Pin

Number Mnemonic

Function

BST to PGND . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +30 V 1

VCC

Supply Voltage.

BST to SW . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +8 V 2

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

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

ISET, ADJ, CCCV, SD, SYNC, CT,

3

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

SYS–

SYS+

Negative System Current Sense

Input.

Positive System Current Sense

Input.

COMP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +3 V 4

ISYS

System Current Sense Output.

GND to PGND . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +0.3 V 5

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

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

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

6

LIMIT

CT

System Current Sense Limit Out-

put.

Oscillator Timing Capacitor.

Storage Temperature Range . . . . . . . . . . . . –65°C to +150°C 7

SYNC

Oscillator Synchronization Pin.

Lead Temperature Range (Soldering 10 sec) . . . . . . +300°C 8

NOTES

*This is a stress rating only and functional operation of the device at these or any 9

REG

REF

6.0 V Analog Regulator Output.

2.5 V Precision Reference Output.

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

10

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

Y extended periods may affect device reliability.

11

R qJA is specified for worst case conditions with device soldered on a circuit board.

12

ORDERING GUIDE

INA L Model

IM A ADP3804JRU

Battery Package

Package

13

Voltage Description Option

14

Adjustable TSSOP-24 RU-24

EL IC ADP3804JRU-12.5 12.525 V TSSOP-24 RU-24

R N15

ADP3804JRU-12.6 12.600 V TSSOP-24 RU-24

P H 16

EC A 17

T T PIN CONFIGURATION

A 24 Lead TSSOP

18

D19

SD

COMP

CCCV

AGND

BAT

ADJ

ISET

CS–

CS+

PGND

Shutdown Control Input.

External Compensation Node.

Constant Current/Constant Voltage

Output.

Analog Ground.

Battery Sense Input. 2.5 V for

ADP3804, 12.525 V for ADP3804-

12.5 or 12.6 V for ADP3804-12.6

Battery Voltage Adjust Input.

Charge Current Program Input.

Negative Current Sense Input.

Positive Current Sense Input.

Power Ground.

VCC 1

SYS– 2

SYS+ 3

ADP3804

24 SW

23 DRVH

22 BST

20

DRVL

Low Drive Output switches be-

tween REG and PGND.

21

BSTREG

7.0 V Regulator Output for Boost.

ISYS 4 TOP VIEW 21 BSTREG

LIMIT 5 (Not to Scale) 20 DRVL

CT 6

19 PGND

SYNC 7

18 CS+

REG 8

17 CS–

REF 9

16 ISET

SD 10

15 ADJ

COMP 11

14 BAT

CCCV 12

13 AGND

22

BST

23

DRVH

24

SW

Floating Bootstrap Supply for

DRVH.

High Drive Output switches be-

tween SW and BST.

Buck Switching Node Reference for

DRVH.

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.

–4–

REV. PrI

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