MONOLITHIC DUAL H-BRIDGE DRIVER
Description
DATA SHEET
MOS INTEGRATED CIRCUIT
µPD16813
MONOLITHIC DUAL H BRIDGE DRIVER CIRCUIT
DESCRIPTION
The µPD16813 is a monolithic dual H bridge driver circuit which uses power MOS FETs in its driver stage.
By complementing the P channel and N channel of the output stage, the circuit current has been substantially inproved as compared with that of conventional charge pump drivers.
The µPD16813 is therefore ideal as the driver circuit of the 2-phase excitation, bipolar-driven stepping motor for the head actuator of an FDD.
FEATURES
• Low ON resistance (sum of ON resistors of top and bottom transistors) RON = 2.
0 Ω TYP.
• Low current consumption: IDD = 100 µA MAX.
• Noise reduction circuit that operates when INC is OFF.
• Compact surface mount package: 16-pin plastic SOP (300 mil)
PIN CONFIGURATION (Top View)
VM1 1A PGND1 2A VDD IN1 IN2 INC
1 2 3 4 5 6 7 8
16 15 14 13 12 11 10 9
NC 1B PGND2 2B VM2 SEL NC DGND
ORDERING INFORMATION
Part Number Package 16-pin plastic SOP (300 mil)
µPD16813GS
Document No.
S10590EJ2V0DS00 (2nd edition) Date Published July 1997 N Printed in Japan
©
1997
µPD16813
BLOCK DIAGRAM
VDD VM
VM1 + IN1 1A IN2 ‘‘H” BRIDGE 1 1B PGND1 VM2 2A ‘‘H” BRIDGE 2 2B DGND PGND2
SEL
CONTROL CIRCUIT
INC
FUNCTION TABLE • In stop mode (SEL = High)
Excitation Direction <1> <2> <3> <4> – INC H H H H L IN1 H L L H × IN2 H H L L × H1 F R R F Stop H2 F F R R
H1 F <4> <1>
• In brake mode (SEL = Low)
Excitation Direction <1> <2> <3> <4> – INC H H H H L IN1 H L L H × IN2 H H L L × H1 F R R F Brake H2 F F R R
H2 R
H2 F
<3> H1 R
<2>
F : Forward R : Reverse × : Don’t care
2
µPD16813
FORWARD VM
REVERSE VM
STOP VM
BRAKE VM
ON
OFF
OFF
ON
OFF
OFF
OFF
OFF
A
B
A
B
A
B
A
B
OFF
ON
ON
OFF
OFF
OFF
ON
ON
ABSOLUTE MAXIMUM RATINGS (TA = +25 °C)
Parameter Supply voltage (motor block) Supply voltage (control block) Power consumption Symbol VM VDD Pd1 Pd2 Instantaneous H bridge driver current Input voltage Operating temperature range Operatio...
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