Datasheet

12
LTC1255
TYPICAL APPLICATIO S
U
Low Frequency (f
O
= 100Hz) PWM Motor Speed Control with
Current Limit and 22V Overvoltage Shutdown
Dual Automotive Lamp Dimmer with Controlled Rise and Fall Times
and Short-Circuit Protection
V
S
DS1
LTC1255
G2
GND

IN2

G1
DS2IN1
+
22V
MMBZ5251BL
100k
10k
10k
0.47µF
100Ω
0.1µF
50V
LMC555
0.01µF
35
2
6
8
4
22V
MMBZ5251BL
MR750
0.01Ω
10µF
50V
IRFR024
LTC1255 • TA06
+
1µF
5.6V
9.1k
MR2535L
14V
1
0.1µF
1k
1N4148
FAST
15k
MED
30k
SLOW
60k
OFF
1N4148
14V
MOTOR
V
S
DS1
LTC1255
G2
GND

IN2

G1
DS2IN1
100Ω
LMC555
0.01µF
35
2
6
8
4
+
10µF
5.6V
9.1k
1
0.1µF
1N4148
1N4148
100k
1k
PULSE
WIDTH
ADJUST
+
10µF
50V
MR2535L
14V
0.1µF0.1µF
30k
0.1µF 0.05Ω
100k
30k
12V
MMBZ5242B
#53
14V
BULBS
MTD3055E
12V
MMBZ5242B
MTD3055E
0.05Ω
100k
LTC1255 • TA06