ADP3820AR-42 查看數據表（PDF） - Analog Devices

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ADP3820AR-42

Lithium-Ion Battery Charger

Analog Devices 

PIN FUNCTION DESCRIPTIONS

Pin

Pin

SOT-23-6 SO-8

1

8

2

7

3

5

4

3

5

4

6

1

2, 6

Name

SD

GND

VOUT

GATE

VIN

IS

NC

Function

Shutdown. Pulling this pin low

will disable the output.

Device Ground. This pin should

be tied to system ground closest

to the load.

Output Voltage Sense. This pin

is connected to the MOSFET’s

drain and directly to the load for

optimal load regulation. Bypass

to ground with a 10 µF or larger

capacitor.

Gate drive for the external

MOSFET.

Input Voltage. This is also the

positive terminal connection of

the current sense resistor.

Current Sense. Used to sense the

input current by monitoring the

voltage across the current sense

resistor. It is connected to the

more negative terminal of the

resistor as well as the power

MOSFET’s source pin. IS pin

should be tied to the VIN pin if

the current limit feature is not

used.

No Connect.

ADP3820

PIN CONFIGURATIONS

SO-8

RT-6 (SOT-23-6)

IS 1

8 SD

NC 2 ADP3820 7 GND

TOP VIEW

GATE 3 (Not to Scale) 6 NC

VIN 4

5 VOUT

NC = NO CONNECT

SD 1

6 IS

GND 2 ADP3820 5 VIN

TOP VIEW

VOUT 3 (Not to Scale) 4 GATE

REV. A

–3–

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