
SERVO MOTOR CONTROL FOR RADIO CONTROL
M51660L
MITSUBISHI <CONTROL / DRIVER IC>
PIN CONFIGURATION (TOP VIEW)
DESCRIPTION
The M51660L is a semiconductor integrated circuit for use in servo
motor control in radio control applications.
Housed in a 14-pin molded plastic zig-zag inline package (ZIP), the
M51660L contributes to the miniaturization of the set.
The built-in voltage regulating circuit, and the differential
comparator used in the comparator circuit provide the M51660L
with extremely stable power supply voltage fluctuation
characteristics and temperature change characteristics.
FEATURES
G
Small circuit current
3.5mA typ.
(When output is off)
G
Excellent power supply and temperature stability
G
Simple setting of dead band
G
Includes protection circuit for continuous “H” level input
APPLICATION
Digital proportional system for radio control, and servo motor
control circuit, etc.
RECOMMENDED OPERATING CONDITIONS
Supply voltage range
3.5 – 7V
Rated supply voltage
4.8V
BLOCK DIAGRAM
Outline 14P5A
Servo position voltage
1
4
5
3
2
6
7
8
9
10
11
12
13
14
M
Timing capacitor
Timing resistor
External PNP transistor drive (1)
Input
Output (1)
GND
Error pulse output
Output (2)
Stretcher input
External PNP transistor drive (2)
Regulated voltage output
Supply
11
13
9
1
2
3
8
7
14
Supply
(4.8V)
GND
5
Input
Control
logic
circuit
Flip-flop
4
6
10
12
Output
drive
circuit
Stretcher
input
Error pulse
output
Timing
capacitance
Servo position
voltage input
One-shot
multivibrator
Pulse
stretcher
Voltage
regulating
circuit
External PNP transistor drive (1)
Output (1)
Output (2)
External PNP transistor drive (2)
Regulated voltage output
V
CC
Timing
resistor