EC49021AS/AD

Dual/Single USB Charger Port Controller

Page 2 of 5

5J21N-Rev.F001

PIN CONFIGURATION

PIN DESCRIPTION

EC49021ASB3R：

：

：

：

NO.

NAME

TYPE

DESCRIPTION

1

DP1

I/O

Connected to the D+ or D– line of USB connector, provide the correct voltage with

attached portable equipment for DCP detection.

2

GND

G

Ground connection

3

N/C

–

No connect pin. Can be grounded or left floating.

4

N/C

–

No connect pin. Can be grounded or left floating.

5

IN

P

Power supply. Connect a ceramic capacitor with a value of 0.1-µF or greater from the IN

pin to GND as close to the device as possible.

6

DM1

I/O

Connected to the D+ or D– line of USB connector, provide the correct voltage with

attached portable equipment for DCP detection.

EC49021ADB3R：

：

：

：

NO.

NAME

TYPE

DESCRIPTION

1

DP1

I/O

Connected to the D+ or D– line of USB connector, provide the correct voltage with

attached portable equipment for DCP detection.

2

GND

G

Ground connection

3

DP2

I/O

Connected to the D+ or D– line of USB connector, provide the correct voltage with

attached portable equipment for DCP detection.

4

DM2

I/O

Connected to the D+ or D– line of USB connector, provide the correct voltage with

attached portable equipment for DCP detection.

5

IN

P

Power supply. Connect a ceramic capacitor with a value of 0.1-µF or greater from the IN

pin to GND as close to the device as possible.

6

DM1

I/O

Connected to the D+ or D– line of USB connector, provide the correct voltage with

attached portable equipment for DCP detection.

Part Number

Package

Marking

Marking Information

EC49021ASB3R

SOT23-6L

49021

ASLLL

1.

LLL：Lot No.

EC49021ADB3R

SOT23-6L

49021

ADLLL

2.

LLL：Lot No.

EC49021ASB3R

EC49021ADB3R