LT1158CS View Datasheet(PDF) - Linear Technology
Part Name
Description
MFG CO.
'LT1158CS' PDF : 20 Pages View PDF
LT1158
TYPICAL APPLICATIONS
1N4148
ENABLE A
FAULT A
INPUT A
1 BOOST DR
16
BOOST
2 V+
0.01µF
3 BIAS
15
T GATE DR
14
T GATE FB
4
+
ENABLE
13
T SOURCE
10µF 5 FAULT
LT1158 SENSE+ 12
6
INPUT
SENSE– 11
7
GND
V+ 10
8 B GATE FB
9
B GATE DR
15Ω
D1
15Ω
10V TO 30V
0.1µF
Q1
+
470µF
LOW
ESR
SIDE A: SHOWS
STANDARD MOSFET
CONNECTION
+
RS
0.015Ω
–
Q2
2.4k
ENABLE B
FAULT B
INPUT B
1N4148
1 BOOST DR
16
BOOST
2 V+
0.01µF
3 BIAS
15
T GATE DR
14
T GATE FB
+ 10µF
4
ENABLE
5 FAULT
13
T SOURCE
LT1158 SENSE+ 12
6
INPUT
SENSE– 11
7
GND
V+ 10
8 B GATE FB
9
B GATE DR
15Ω
D2
47Ω
15Ω
+
470µF
Q3
LOW
ESR
0.1µF
+–
Μ
SIDE B: SHOWS
CURRENT-SENSING
MOSFET CONNECTION
2.4k
Q4
Q1, Q3: IRF540 (STANDARD)
IRC540 (SENSE FET)
Q2, Q4: IRFZ44
D1, D2: BAT83
RS: DALE TYPE LVR-3
ULTRONIX RCS01
LT1158 F17a
Control Logic for Sign/Magnitude Drive
74HC02
ENABLE A
FAULT A
INPUT A
Control Logic for Locked Anti-Phase Drive
Motor stops if either side is shorted to ground
5V
74HC132 5.1k
0.01µF
ENABLE A
FAULT A
PWM
INPUT A
PWM
DIRECTION
STOP
(FREE RUN)
1N4148
+
1µF
ENABLE B
FAULT B
INPUT B
1158F17b
0.1µF
150k
1N4148
ENABLE B
FAULT B
INPUT B
1158F17c
Figure 17. 10A Full Bridge Motor Control
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.
19
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