U2010B-MFP Datasheet, PDF (1/18 Pages) ATMEL Corporation – Phase-control IC with Current Feedback and Overload Protection

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
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. 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
B
Programmable Auto-
9
-
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. 4766A–INDCO–01/04