UPD16808 Datasheet, PDF (1/12 Pages) NEC – MONOLITHIC DUAL H BRIDGE DRIVER CIRCUIT

DATA SHEET
MOS INTEGRATED CIRCUIT
µPD16808
MONOLITHIC DUAL H BRIDGE DRIVER CIRCUIT
DESCRIPTION
The µPD16808 is a monolithic dual H bridge driver circuit which employing N-channel power MOS FETs for its driver
stage. By using the power MOS FETs for the output stage, saturation voltage and power consumption are substantially
improved as compared with conventional driver circuits that use bipolar transistors.
Because the dual H bridge driver circuits at the output stage are independent of each other, this IC is ideal as the driver
circuit for a 1- to 2-phase excitation bipolar driving stepping motor for the head actuator of an FDD.
FEATURES
• Low ON resistance (sum of ON resistors of top and bottom FETS)
RON1 = 1.0 Ω TYP. (VM = 5.0 V)
RON2 = 1.5 Ω TYP. (VM = 12.0 V)
• Low current consumption: IDD = 0.4 mA TYP.
• Four input modes independently controlling dual H bridge drivers (with 1- to 2-phase excitation selected)
• Motor voltage 12 V/5 V compatible
• Compact surface mount package: 20-pin plastic SOP (300 mil)
PIN CONFIGURATION (Top View)
C1H
1
C2L
2
VM1
3
1A
4
PGND1
5
2A
6
VDD
7
IN1
8
IN2
9
IN3
10
20
C1L
19
C2H
18
VG
17
1B
16
PGND2
15
2B
14
VM2
13
SEL
12
IN4
11
DGND
Document No. S12720EJ2V0DS00 (2nd edition)
Date Published September 1997 N
Printed in Japan
©
1997