器件名称: U2010B_10
功能描述: Programmable Load-current Limitation with Over- and High-load Output
文件大小: 1247.68KB 共18页
简 介: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
Phase-control IC with Current Feedback and Overload Protection U2010B
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
Overload Mains voltage compensation
13
12
11
Limiting detector
Voltage detector
High load
Supply voltage
10
GND
Automatic retriggering
100% Output
70%
αmax
A
9
Current detector
16
Phase control unit = f(V4)
-
1
2
+
Programmable overload protection
B Autostart C Imax
Full wave rectifier
Voltage monitoring
1
U2010B
Load current detector
Level shift
Soft start
4 5 6 7
Reference voltage
8
2
3
4766C–INDCO–04/10
Figure 1-2.
230V ~
Block Diagram with External Circuit
18 kΩ/2W R1 R2 330 kΩ Load
15 14
D1
D3 LED
αmax
R8 470 kΩ
13 12
VS Overload
11
C1 22 F +
10
Limiting detector
Voltage detector
Mains voltage compensation
High load
Supply……