Vishay Siliconix
Si9986
Document Number: 70007
S-72211-Rev. F, 22-Oct-07
www.vishay.com
1
Buffered H-Bridge
FEATURES
• 1.0 A H-Bridge
• 200 kHz Switching Rate
• Shoot-Through Limited
• TTL Compatible Inputs
• 3.8 to 13.2 V Operating Range
• Surface Mount Packaging
APPLICATIONS
• VCM Driver
• Brushed Motor Driver
• Stepper Motor Driver
• Power Converter
• Optical Disk Drives
• Power Supplies
• High Performance Servo
DESCRIPTION
The Si9986 is an integrated, buffered H-bridge with TTL
compatible inputs and the capability of delivering a
continuous 1.0 A at V
DD
= 12 V (room temperature) at
switching rates up to 200 kHz. Internal logic prevents the
upper and lower outputs of either half-bridge from being
turned on simultaneously. Unique input codes allow both
outputs to be forced low (for braking) or forced to a high
impedance level.
The Si9986 is available in both standard and lead (Pb)-free,
8-pin SOIC packages, specified to operate over a voltage
range of 3.8 V to 13.2 V, and the commercial temperature
range of 0 to 70 °C (C suffix) and the industrial temperature
range of - 40 to 85 °C (D suffix).
FUNCTIONAL BLOCK DIAGRAM, PIN CONFIGURATION AND TRUTH TABLE
V
DD
OUTPUT
AB
IN
A
IN
B
GND
S
A
Shoot-Through
Protection Logic
S
B
(3)
(7)
(6)
(2)
(1) (8) (5) (4)
GND
SO-8
5
6
7
8
Top View
2
3
4
1
S
A
OUT
A
V
DD
IN
A
IN
B
S
B
OUT
B
Si9986
PIN DESCRIPTION
Pin
Number
Name Function
1
S
A
Source of the low-side MOSFET on bridge arm A
2 GND Ground
3
V
DD
IC power supply
4
S
B
Source of the low-side MOSFET on bridge arm B
5
OUT
B
Center tap of bridge arm B. Connects to one end
of the load
6
IN
B
Input signal to control bridge arm B
7
IN
A
Input signal to control bridge arm A
8
OUT
A
Center tap of bridge arm A. Connects to the other
end of the load
ORDERING INFORMATION
Part Number
Temperature
Range
Package
Si9986CY-T1 0 to 70 °C
Tape and Reel
Si9986DY-T1 - 40 to 85 °C
Si9986CY-T1-E3 0 to 70 °C
Lead (Pb)-free
Tape and Reel
Si9986DY-T1-E3 - 40 to 85 °C
Si9986CY 0 to 70 °C
Bulk (tubes)
Si9986DY - 40 to 85 °C
TRUTH TABLE
IN
A
IN
B
OUT
A
OUT
B
1010
0101
0000
11HiZHiZ
* Pb containing terminations are not RoHS compliant, exemptions may apply.
Available
Pb-free
RoHS*
COMPLIANT