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UPD16818GS Datasheet

  • UPD16818GS

  • Stepper Motor Controller/Driver

  • 16頁

  • ETC

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DATA SHEET
MOS INTEGRATED CIRCUIT
碌
PD16818
MONOLITHIC DUAL H BRIDGE DRIVER CIRCUIT
DESCRIPTION
The
碌
PD16818 is a monolithic dual H bridge driver IC which uses N-channel power MOS FETs in its output 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 power-saving mode.
The
碌
PD16818 is therefore ideal as the driver circuit of a 2-phase excitation, bipolar-driven stepping motor for the head
actuator of an FDD.
FEATURES
鈥?Compatible with 3V-/5V- supply voltage
鈥?Pin compatible with
碌
PD16803
鈥?Low ON resistance (sum of ON resistors of top and bottom MOS FETs)
R
ON1
= 1.2
鈩?/div>
(V
M
= 3.0 V)
R
ON2
= 1.0
鈩?/div>
(V
M
= 5.0 V)
鈥?Low current consumption: I
DD
= 0.4 mA TYP. (V
DD
= 2.7 V to 3.6 V)
鈥?Stop mode function that turns OFF all output MOS FETs
鈥?Drive current can be set in power-saving mode (set by external resistor)
鈥?Compact surface mount package
ORDERING INFORMATION
Part Number
Package
20-pin plastic SOP (300 mil)
20-pin plastic SSOP (225 mil)
碌
PD16818GS
碌
PD16818GR-8JG
ABSOLUTE MAXIMUM RATINGS (T
A
= 25
擄
C)
Parameter
Supply voltage
Motor block
Control block
Power
consumption
Symbol
V
M
V
DD
P
D1
P
D2
Condition
Rating
鈥?.5 to +7.0
鈥?.5 to +7.0
1.0
Note 1
1.25
Note 2
0.79
Note 2
PW
鈮?/div>
5 ms, Duty
鈮?/div>
40 %
鹵1.0
Note 2
鈥?.5 to V
DD
+ 0.5
0 to 60
150
鈥?5 to +150
A
V
擄C
擄C
擄C
W
Unit
V
碌
PD16818GS
碌
PD16818GR-8JG
P
D2S
I
D (pulse)
V
IN
T
A
T
J (MAX)
T
stg
Instantaneous H bridge drive current
Input voltage
Operating temperature range
Operation junction temperature
Storage temperature range
Notes 1.
IC only
2.
When mounted on a glass epoxy printed circuit board (100 mm
脳
100 mm
脳
1 mm)
The information in this document is subject to change without notice.
Document No. S11365EJ2V0DS00 (2nd edition)
Date Published December 1997 N
Printed in Japan
漏
1997

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