ADP3806 查看數據表（PDF） - Analog Devices

零件编号

产品描述 (功能)

生产厂家

ADP3806

High Frequency Switch Mode Li-Ion Battery Charger

Analog Devices 

ADP3806

PIN CONFIGURATION AND FUNCTION DESCRIPTIONS

VCC 1

24 SW

SYS– 2

23 DRVH

SYS+ 3

22 BST

ISYS 4

21 BSTREG

LIMIT 5 ADP3806 20 DRVL

CT 6 TOP VIEW 19 PGND

SYNC 7 (Not to Scale) 18 CS+

REG 8

17 CS–

REF 9

16 ISET

SD 10

15 BATSEL

COMP 11

14 BAT

LC 12

13 AGND

Figure 2. Pin Configuration

Table 3. Pin Function Descriptions

Pin No. 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 Output.

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

LC

Low Current Output.

13

AGND

Analog Ground.

14

BAT

Battery Sense Input. 2.5 V for ADP3806. 12.525 V or 16.7 V for ADP3806-12.5. 12.6 V or 16.8 V for ADP3806-12.6.

15

BATSEL

Battery Voltage Sense Input. High = three cells, low = four cells.

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. This switches between REG and PGND.

21

BSTREG

7.0 V Regulator Output for Boost.

22

BST

Floating Bootstrap Supply for DRVH.

23

DRVH

High Drive Output. This switches between SW and BST.

24

SW

Buck Switching Node Reference for DRVH.

Rev. C | Page 6 of 16

Share Link: