U2010B Datasheet, PDF (1/18 Pages) TEMIC Semiconductors – Phase Control Circuit for Current Feedback

Features
• Full-wave Current Sensing
• Mains Supply Variation Compensated
• Programmable Load-current Limitation with Over- and High-load Output
• Variable Soft Start
• Voltage and Current Synchronization
• Automatic Retriggering Switchable
• Triggering Pulse Typically 125 mA
• Internal Supply-voltage Monitoring
• Current Requirement ≤3 mA
• Temperature-compensated Reference Voltage
Applications
• Advanced Motor Control
• Grinder
• Drilling Machine
1. Description
The U2010B is designed as a phase-control circuit in bipolar technology for motor
control applications with load-current feedback and overload protection. It enables
load-current detection and has a soft-start function as well as reference voltage
output.
Figure 1-1. Block Diagram
15
14
13
12
11
Overload
Limiting Voltage
detector detector
Automatic
retriggering
Mains voltage
compensation
Supply 10
High load
voltage
G
N
D
100%
70%
A
α_max
Current
detector
16
Phase
control unit
ϕ = f (V₄)
Output
B9
Programmable Auto-
-
12
+
overload ^start
Full wave
rectifier
protection
C
I_max
Pulse
output
Voltage
monitoring ^U2010B
1 ^Load
current
detector
Level
shift
Soft Reference
start voltage
2
3
4
5
6
7
8
Phase-control
IC with Current
Feedback and
Overload
Protection
U2010B
Rev. 4766B–INDCO–10/05