Datasheet

LT1158
19
1158fb
TYPICAL APPLICATIONS
Figure 15. High Effi ciency 6-Cell NiCd Protected Motor Drive
Figure 16. 3-Phase Brushless DC Motor Control
BAT85
LT1158 F15
0.01μF
15Ω
START CURRENT
= 25A MINIMUM
15Ω
0.1μF
Q2
Q1, Q2: IRLZ44 (LOGIC-LEVEL)
R
S
: DALE TYPE LVR-3
ULTRONIX RCS01
1k
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
BOOST
T GATE DR
T GATE FB
T SOURCE
SENSE
+
SENSE
–
V
+
B GATE DR
BOOST DR
V
+
BIAS
ENABLE
FAULT
INPUT
GND
B GATE FB
LT1158
R
S
0.015Ω
1N4148
+
–
Q1
STOP
(FREE RUN)
PWM
100μF
7.2V
NOMINAL
10μF
1μF
-
+
+
+
POSITION FEEDBACK
CONTROLS LT1158
ENABLE INPUTS
F
A
5V
1158 F16
ENABLE
FAULT
INPUT
LT1158
V
+
ENABLE
FAULT
INPUT
LT1158
V
+
ENABLE
FAULT
INPUT
LT1158
V
+
F
B
F
C
SHUTDOWN
PWM CONTROLS
LT1158 INPUTS
COMMUTATING LOGIC