µPD16803

2

ORDERING INFORMATION

Part Number

Package

µPD16803GS

20-pin plastic SOP (300 mil)

BLOCK DIAGRAM

OSC

CIRCUIT

BAND GAP

REFERENCE

CHARGE

PUMP

LEVEL CONTROL

CIRCUIT

SWITCH

CIRCUIT

CONTROL

CIRCUIT

LEVEL

SHIFT

“H”

BRIDGE 2

“H”

BRIDGE 1

0.01 F

µ

0.01 F

µ

0.01 F

µ

2

1A

1B

2A

2B

PGND

PGND

C1L

C2L

C1H

C2H

Connected in diffusion layer

Note 3

Note 2

PS

INC

DGND

Note 1

Notes 1. 3

2. The power-saving mode is set when the PS pin goes high. In this mode, the voltage of the charge pump

circuit is lowered and the ON resistance of the H bridge driver transistor increases, limiting the current.

In the power-saving mode, the motor cannot turn.

3. It is recommended to connect an external capacitor of 0.22

the operation.