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