DATA SHEET
MOS INTEGRATED CIRCUIT
碌
PD16803
MONOLITHIC DUAL H BRIDGE DRIVER CIRCUIT
DESCRIPTION
The
碌
PD16803 is a monolithic dual H bridge driver circuit which uses N-channel power MOS FETs in its driver stage.
By employing the power MOS FETs for the output stage, this driver circuit has a substantially improved saturation voltage
and power consumption as compared with conventional driver circuits that use bipolar transistors.
In addition, the drive current can be adjusted by an external resistor in a power-saving mode.
The
碌
PD16803 is therefore ideal as the driver circuit of the 2-phase excitation, bipolar-driven stepping motor for the head
actuator of an FDD.
FEATURES
鈥?Low ON resistance (sum of ON resistors of top and bottom transistors)
R
ON1
= 1.5
鈩?/div>
TYP. (V
M
= 5.0 V)
R
ON2
= 2.0
鈩?/div>
TYP. (V
M
= 12.0 V)
鈥?Low current consumption: I
DD
= 0.4 mA TYP.
鈥?Stop mode function that turns OFF all output transistors
鈥?Compact surface mount package: 20-pin plastic SOP (300 mil)
PIN CONFIGURATION (Top View)
C1H
C2L
V
M1
1A
PGND
2A
V
DD
IN
1
IN
2
INC
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
C1L
C2H
V
G
1B
PGND
2B
V
M2
R
X
PS
DGND
Document No. S11452EJ2V0DS00 (2nd edition)
Date Published July 1997 N
Printed in Japan
漏
1997
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