LT1158CS LINER [Linear Technology], LT1158CS Datasheet - Page 19

• Manufacturer Part Number: LT1158CS
• Description: Half Bridge N-Channel Power MOSFET Driver
• Manufacturer: LINER [Linear Technology]

TYPICAL APPLICATIONS
(FREE RUN)
DIRECTION
PWM
STOP
ENABLE A
ENABLE B
FAULT A
FAULT B
INPUT A
INPUT B
Control Logic for Sign/Magnitude Drive
1N4148
74HC02
+
+
10 F
0.01 F
0.01 F
10 F
+
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen-
tation that the interconnection of its circuits as described herein will not infringe on existing patent rights.
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1 F
BOOST DR
V
BIAS
ENABLE
FAULT
INPUT
GND
B GATE FB
BOOST DR
V
BIAS
ENABLE
FAULT
INPUT
GND
B GATE FB
+
+
U
LT1158
LT1158
Figure 17. 10A Full Bridge Motor Control
1N4148
T GATE DR
B GATE DR
1N4148
T GATE DR
B GATE DR
T SOURCE
T GATE FB
T GATE FB
T SOURCE
SENSE
SENSE
SENSE
SENSE
BOOST
BOOST
V
V
+
–
+
+
–
+
ENABLE A
FAULT A
INPUT A
ENABLE B
FAULT B
INPUT B
16
15
14
13
12
11
10
16
15
14
13
12
11
10
9
9
1158F17b
47
15
15
D1
D2
15
15
PWM
0.1 F
0.1 F
Control Logic for Locked Anti-Phase Drive
Motor stops if either side is shorted to ground
74HC132
Q1
+
Q3
Q2
0.1 F
–
+
R
0.015
–
Q4
S
+
+
5V
5.1k
2.4k
LT1158 F17a
470 F
470 F
LOW
ESR
LOW
ESR
10V TO 30V
Q1, Q3: IRF540 (STANDARD)
Q2, Q4: IRFZ44
D1, D2: BAT83
R
150k
S
2.4k
: DALE TYPE LVR-3
ULTRONIX RCS01
0.01 F
1N4148
IRC540 (SENSE FET)
SIDE A: SHOWS
STANDARD MOSFET
CONNECTION
SIDE B: SHOWS
CURRENT-SENSING
MOSFET CONNECTION
LT1158
INPUT A
ENABLE B
FAULT B
INPUT B
ENABLE A
FAULT A
1158F17c
19