參數(shù)資料
型號(hào)： Si9978DW
廠商： Vishay Intertechnology,Inc.
英文描述： Configurable H-Bridge Driver(可配置的H橋驅(qū)動(dòng)器)
中文描述： 可配置的H橋驅(qū)動(dòng)器（可配置的魔橋驅(qū)動(dòng)器）
文件頁(yè)數(shù)： 3/6頁(yè)
文件大?。?/td> 172K
代理商： SI9978DW
Si9978DW
Vishay Siliconix
FaxBack 408-970-5600, request 70011
www.siliconix.com
S-60752—Rev. D, 05-Apr-99
3
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. V
CAP
= (V+) + (V
DD
)
TRUTH TABLE
Current Limit
Comparator Input Bias Current
I
IB
-5
-0.2
5
μA
Comparator Threshold Voltage
V
TH
T
A
= 25
°
C
90
100
110
mV
85
115
One Shot Pulse Width
t
p
R
A
, R
B
= 100 k
, C
A
, C
B
= 100 pF
R
A
, R
B
= 100 k
, C
A
, C
B
= 0.001 μF
C
L
= 600 pF
8
10
12
μs
80
100
120
Propagation Delay
t
pd
600
ns
H-BRIDGE MODEL
MODE
DIR/
IN
A
EN/
EN
A
QS/
IN
B
PWM/
EN
B
BRK
IL
A
+
IL
B
+
GT
A
GB
A
GT
B
GB
B
CL/
FAULT
B
FAULT/
FAULT
A
Condition
1
1
1
1
0
L
X
H
L
L
1
1
Normal
Operation
1
1
1
0
0
L
X
L
L
1
1
1
0
1
1
0
L
X
L
H
L
1
1
1
0
1
0
0
L
X
L
L
1
1
1
X
1
X
X
1
L
X
L
H
K
H
1
1
Brake
1
X
0
X
X
X
L
X
L
L
L
L
1
1
Disable
1
X
1
X
X
0
X
L
L
L
L
Overcurrent
1
X
X
X
X
X
X
X
L
L
L
L
1
0
Undervoltage
on V
DD
SPECIFICATIONS
Parameter
Symbol
Test Conditions
Unless Otherwise Specified
V+ = 20 to 40 V
Limits
-40 to 85
°
C
Unit
Min
a
Typ
b
Max
a
HALF-BRIDGE MODEL
MODE
DIR/
IN
A
EN/
EN
A
QS/
IN
B
PWM/
EN
B
BRK
IL
A
+
IL
B
+
GT
A
GB
A
GT
B
GB
B
CL/
FAULT
B
FAULT/
FAULT
A
Condition
0
1
1
X
0
X
L
L
H
L
L
L
1
1
Normal
Operation
0
0
1
X
0
X
L
L
L
H
L
L
1
1
0
X
0
1
1
X
L
L
L
L
H
L
1
1
0
X
0
0
1
X
L
L
L
L
L
H
1
1
0
X
1
X
X
X
X
L
L
X
X
1
Overcurrent on
A
0
X
X
X
1
X
X
X
X
L
L
1
Overcurrent on
B
0
X
X
X
X
X
X
X
L
L
L
L
0
0
Undervoltage
on V
DD
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