SI9978 Datasheet, PDF (6/6 Pages) Vishay Siliconix – Configurable H-Bridge Driver

Si9978
Vishay Siliconix
APPLICATION CIRCUIT
V+
C₁
EN
DIR
PWM
QS
BRK
CL
FAULT
R₄
R₃
V_CC
R₂
100 kW
C₂
C₃
U1
1
V_DD
2
EN/EN_A
3
4 ^DIR/INA
PWM/EN_B
5
QS/IN_B
6
MODE
7
BRK
8
CL/F_B
9
F/F_A
10
NC
11
R_A/C_A
12
R_B/C_B
24
V+
23
C₄
CAP_A
22
S_{A 21}
GT_A
20
GB_A
19
CAP_{B 18}
C₅
S_B
17
GT_B
16
GB_B
15
GND
14
IL_B+
13
IL_A+
Si9978
C₈
GND
LITTLE FOOTr
Q₁
Q₃
C₆
C₇
A
B
OUT OUT
Q₂
Q₄
R₁
FIGURE 1. Basic H-Bridge Circuit
www.vishay.com
6
Document Number: 70011
S-40804—Rev. E, 26-Apr-04