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V
DD
OUTPUT
A
B
IN
A
IN
B
GND
S
A
Shoot-Through
Protection Logic
S
B
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
Si9987
(3)
(7)
(6)
(2)
(1)
(8)
(5)
(4)
Si9987
Vishay Siliconix
Document Number: 70864
S-02936—Rev. C, 22-Jan-01
www.vishay.com
1
Buffered H-Bridge
FEATURES
APPLICATIONS
D
1.0-A H-Bridge
D
500-kHz Switching Rate
D
Shoot-Through Limited
D
TTL Compatible Inputs
D
3.8- to 13.2-V Operating Range
D
Surface Mount Packaging
D
VCM Drive
r
D
Brushed Motor Driver
D
Stepper Motor Driver
D
Power Converter
D
Optical Disk Drives
D
Power Supplies
D
High Performance Servo
DESCRIPTION
The Si9987 is an integrated, buffered H-bridge with TTL
compatible inputs and the capability of delivering a continuous
1.0 A @ V
DD
= 5.0 V (room temperature) at switching rates up
to 500 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 Si9987 is available in an 8-Pin SOIC package, 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 –40
to 85
_
C (D suffix).
FUNCTIONAL BLOCK DIAGRAM, PIN CONFIGURATION AND TRUTH TABLE
TRUTH TABLE
IN
A
IN
B
OUT
A
OUT
B
1
0
1
0
0
1
0
1
0
0
0
0
1
1
HiZ
HiZ
ORDERING INFORMATION
Part Number
Temperature Range
Package
Si9987CY-T1
0 to 70
_
C
Si9987DY-T1
–40 to 85
_
C
Tape and Reel
Si9987CY
0 to 70
_
C
Si9987DY
–40 to 85
_
C
Bulk (tubes)
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Si9987
Vishay Siliconix
www.vishay.com
2
Document Number: 70864
S-02936—Rev. C, 22-Jan-01
ABSOLUTE MAXIMUM RATINGS
a
Voltage on any pin with respect to ground
–0.3 V to V
DD
+0.3 V
. . . . . . . . . . .
Voltage on pins 5, 8 with respect to GND
–1 V to V
DD
+1 V
. . . . . . . . . . . . . .
Voltage on pins 1, 4
–0.3 V to GND +1 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maximum V
DD
15 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Peak Output Current
1.5 A
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage Temperature
–65 to 150
_
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maximum Junction Temperature (T
J
)
150
_
C
. . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Dissipation
b
1 W
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
q
JA
100
_
C/W
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous I
OUT
Current (T
J
= 135
_
C)
c
T
A
= 25
_
C
"
1.02 A
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
T
A
= 70
_
C
"
0.75 A
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
T
A
= 85
_
C
"
0.65 A
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating Temperature Range
Si9987CY
0 to 70
_
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Si9987DY
–40 to 85
_
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Notes
a.
Device mounted with all leads soldered or welded to PC board.
b.
Derate 10 mW/
_
C above 25
_
C.
c.
T
J
= T
A
+ (P
D
x
q
JA
), P
D
= Power Dissipation .
RECOMMENDED OPERATING RANGE
V
DD
3.8 V to 13.2 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maximum Junction Temperature (T
J
)
135
_
C
. . . . . . . . . . . . . . . . . . . . . . . . . . .
SPECIFICATIONS
Test Conditions Unless Specified
Limits
Parameter
Symbol
V
DD
= 3.8 to 13.2 V
S
A
@ GND, S
B
@ GND
Min
a
Typ
b
Max
a
Unit
Input
Input Voltage High
V
INH
2
Input Voltage Low
V
INL
1
V
Input Current with Input Voltage High
I
INH
V
IN
= 2 V
1
m
Input Current with Input Voltage Low
I
INL
V
IN
= 0 V
–1
m
A
Output
V
DD
= 10.8 V
10.40
10.56
I
OUT
= –1 A
V
DD
= 4.5 V
4.00
4.20
Output Voltage High
c
V
OUTH
V
DD
= 10.8 V
10.60
10.68
OUTH
I
OUT
= –500 mA
V
DD
= 4.5 V
4.25
4.35
I
OUT
= –300 mA, V
DD
= 3.8 V
3.63
3.70
V
DD
= 10.8 V
0.24
0.40
V
I
OUT
= 1 A
V
DD
= 4.5 V
0.30
0.50
Output Voltage Low
c
V
OUTL
V
DD
= 10.8 V
0.12
0.20
OUTL
I
OUT
= 500 mA
V
DD
= 4.5 V
0.15
0.25
I
OUT
= 300 mA, V
DD
= 3.8 V
0.10
0.17
Output Leakage Current Low
I
OLL
IN
A
= IN
B
w
2 V, V
OUT
= V
DD
= 13.2 V
0
10
m
Output Leakage Current High
I
OLH
V
OUT
= 0, V
DD
= 13.2 V
–10
0
m
A
Output V Clamp High
V
CLH
w
I
OUT
= 100 mA
V
DD
+0.7
V
DD
+0.9
Output V Clamp Low
V
CLL
IN
A
= IN
B
w
2 V
I
OUT
= –100 mA
–0.9
–0.7
V
Supply
IN = 100 kHz, V
DD
= 5.5 V
1.8
2.5
mA
V
DD
Supply Current
I
DD
IN
A
= IN
B
= 4.5 V, V
DD
= 5.5 V
75
125
m
A
Dynamic
T
PLH
300
Propogation Delay Time
T
PHL
V
DD
= 5 V
100
nS
Notes
a.
The algebraic convention whereby the most negative value is a minimum and the most positive a maximum, is used in this data sheet.
b.
Typical values are for DESIGN AID ONLY, not guaranteed nor subject to production testing.
c.
Maximum value measured at T
J
= 135
_
C. Typical value measured at T
J
= T
A
= 25
_
C (pulse width
v
300
m
sec, duty cycle
v
2%).
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Si9987
Vishay Siliconix
Document Number: 70864
S-02936—Rev. C, 22-Jan-01
www.vishay.com
3
TYPICAL CHARACTERISTICS (25_C UNLESS NOTED)
–
Standby (
I
DD
A)
m
0
2
4
6
8
–35
–20
–5
10
25
40
55
70
85
60
80
100
120
140
160
180
200
–35
–20
–5
10
25
40
55
70
85
0
1
2
3
4
5
6
4
6
8
10
12
14
Supply Current vs. Supply Voltage
(mA)
I
DD
V
DD
– Supply Voltage (V)
f = 100 kHz
40
80
120
160
200
4
6
8
10
12
14
Supply Current vs. Supply Voltage
(mA)
I
DD
V
DD
– Supply Voltage (V)
0
100
200
300
400
500
0.50
0.75
1.00
1.25
1.50
0
3
6
9
12
0.50
0.75
1.00
1.25
1.50
Output High Voltage vs. Output Current
Output Low Voltage vs. Output Current
(V)
V
OUTH
Output Current (A)
Output Current (A)
(mV)
V
OUTL
V
DD
= 10.8 V
V
DD
= 3.8 V
4.5 V
3.8 V
4.5 V
10.8 V
Supply Current vs. Temperature
Temperature (
_
C)
V
DD
= 13.2 V
Supply Current vs. Temperature
Temperature (
_
C)
V
DD
= 13.2 V
–
Standby (
I
DD
A)
m
5.5 V
5.5 V
f = 100 kHz
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Si9987
Vishay Siliconix
www.vishay.com
4
Document Number: 70864
S-02936—Rev. C, 22-Jan-01
TYPICAL CHARACTERISTICS (25_C UNLESS NOTED)
(mA)
I
DD
V
DD
– Supply Voltage (V)
Delay
T
ime (ns)
0
3
6
9
12
15
0
50
100
150
200
Supply Current vs. Frequency
V
DD
= 13.2 V
f – Frequency (kHz)
5.5 V
3.8 V
0
100
200
300
400
500
600
3
6
9
12
15
Propagation Time vs. Supply Voltage
T
PLH
T
PHL
(mA)
I
DD
V
DD
0
7
14
21
28
35
4
6
8
10
12
14
Supply Current vs. Supply Voltage
f = 500 kHz
V
DD
– Supply Voltage (v)
R
OUT
vs. V
DD
(
R
OUT
R
OUT
vs. Junction Temperature (T
J
)
Temperature (
_
C)
10.8 V
0.6
0.7
0.8
0.9
1.0
1.1
1.2
1.3
1.4
1.5
–50
–25
0
25
50
75
100
125
150
R
OUT
Normalized vs. Junction Temperature (T
J
)
Temperature (
_
C)
)
W
85
_
C
(
R
OUT
)
W
0.1
0.2
0.3
0.4
0.5
–50
0
50
100
150
13.2 V
0.10
0.14
0.18
0.22
0.26
0.30
0.34
0.38
0.42
0.46
0.50
2
4
6
8
10
12
14
T
A
= 135
_
C
25
_
C
–40
_
C
4.5 V
5.5 V
V
DD
= 3.8 V
Normalized (
R
OUT
)
W
V
DD
= 10.8 V
V
DD
= 4.5 V