Multifunction Timer
U2102B
Multifunction Timer
Description
The monolithic integrated bipolar circuit U2102B is an MOSFET or IGBT control cir...
Description
U2102B
Multifunction Timer
Description
The monolithic integrated bipolar circuit U2102B is an MOSFET or IGBT control circuit which allows realization of an extremely wide range of timer and dimmer functions. The integrated current monitoring function additionally permits the power switch to be reliably protected without an additional fuse.
Features
D Integrated reverse phase control D Two- or three-wire applications D Mode selection:
– Zero-voltage switch with static output – Two-stage reverse phase control with switch-off – Two-stage reverse phase control
D Adjustable and retriggerable tracking time D External window adjustment for sensor input D Enable input for triggering
Applications
D D D D D
Motion detectors Time-delay relays Dimmers Reverse phase controls Timers
D Current monitoring:
– High-speed short-circuit monitoring with output – High-current monitoring with integrating buffer
D Integrated chip temperature monitoring
Package: DIP16, SO16
94 8666
1 VRef 2 3 4 Voltage monitoring
16 Synchronization 15 Voltage limitation Control 13
Reverse phase control
5
RC oscillator
Divider logic
Push pull
14
12 6 Programing Current monitoring 11
Triggering with buffers 7 8 9
Temperature monitoring
Test logic 10
Figure 1. Block diagram
TELEFUNKEN Semiconductors Rev. A1, 30-May-96
1 (16)
U2102B
68 k W +Vs 15 47 mF/25 V C1 14 IGBT RG Load
1 kW 2 Push pull Ramp Voltage limitation
R2 Reverse Phase + 4 – 12 Control GND 13 100 W Temp monitoring
1 MW
10 nF
C3
...
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