U210B1
Phase Control Circuit鈥揕oad Current Feedback Applications
Description
The interated circuit, U210B1, is designed as a phase-
control circuit for load-current feedback application in
bipolar technology. To realize motor control systems, it
has integrated load current detection, voltage monitoring
and soft-start functions. The voltage obtained due to load
current proportionality, can be used according to the
application i.e., load-current compensation or load-
current regulation.
Features
D
D
D
D
D
Externally controlled integrated amplifier
Variable soft start
Automatic retriggering
Voltage and current synchronization
Triggering pulse typ. 125 mA
Package:
DIP14
D
Internal supply voltage monitoring
D
Temperature constant reference source
D
Current requirement
鈮?/div>
3 mA
14
Voltage
detector
1
Current
detector
Automatic
retriggering
Output
pulse
4
5
Control
amplifier
6
8
+
鈥?/div>
7
Phase
control unit
枚
= f (V
12
)
3
Supply
voltage
limitation
Reference
voltage
Voltage
monitoring
2
13
鈥揤S
GND
Load
current
detection
Soft start
12
11
9
10
95 10686
Figure 1. Block diagram
TELEFUNKEN Semiconductors
Rev. A1, 28-May-96
1 (12)
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