U2350B-FP
PWM Speed Control for Permanent Excited DC Motors
Description
The monolithic integrated bipolar circuit U2350B is a
MOSFET or IGBT - control circuit which works on the
principle of pulse width modulation (PWM). The overall
concept enables the construction of a power controller
with mains voltage compensation where intermittent
operation is also possible. In addition, the circuit also
enables mains-voltage compensated current control,
which maintains the power supplied at a constant level
after the preset threshold has been exceeded.
Features
D
D
D
D
D
D
D
D
Pulse width control up to 30 kHz clock frequency
Mains supply compensation
Current regulation
Temperature monitoring with indicator
Active operation indicator
Blink-warn indicator
Switchable to interval operation
Push-pull output stage for separate supply
Package:
SO16
D
Supply voltage monitoring
D
Temperature compensated supply voltage limitation
Applications
D
Domestic equipment
D
Tools
Block Diagram
2
LED control
1
+V
S
16
GND
Voltage limitation
12
Push– pull
output
15
14
13
8
6
7
Oscillator
4
Temperature
monitoring
Output
control
PWM Control
10
9
5
Tristate
Program
logic
Current
limitation
11
95 10873
Figure 1. Block diagram
TELEFUNKEN Semiconductors
Rev. A1, 29-May-96
1 (9)
TEMIC [ TEMIC SEMICONDUCTORS ]
