U2102B-XFPG3Y ATMEL Corporation, U2102B-XFPG3Y Datasheet

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U2102B-XFPG3Y

Manufacturer Part Number
U2102B-XFPG3Y
Description
Multifunction Timer IC
Manufacturer
ATMEL Corporation
Datasheet
Features
Applications
1. Description
The timer control circuit U2102B is based on bipolar technology. The output stage can
switch either a MOSFET or an IGBT. Two sensor inputs and the retriggerable and
adjustable tracking time useful for a wide range of applications. By using the reverse
phase-control technique, the resistive load can be dimmed without the need of a com-
pensation inductance. The integrated current monitoring function provides a very fast
switch-off in case of a short-circuit condition. No additional fuse is needed.
Integrated Reverse Phase Control
Mode Selection:
Current Monitoring:
Integrated Chip Temperature Monitoring
Adjustable and Retriggerable Tracking Time
External Window Adjustment for Sensor Input
Enable Input for Triggering
Two- or Three-wire Applications
Motion Detectors
Time-delay Relays
Dimmers
Reverse Phase Controls
Timers
– Zero-voltage Switch with Static Output
– Two-stage Reverse Phase Control with Switch-off
– Two-stage Reverse Phase Control with Dimming Function
– High-speed Short-circuit Monitoring with Output
– High-current Monitoring with Integrating Buffer
Multifunction
Timer IC
U2102B
Rev. 4767B–INDCO–10/05

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U2102B-XFPG3Y Summary of contents

Page 1

... Timers 1. Description The timer control circuit U2102B is based on bipolar technology. The output stage can switch either a MOSFET or an IGBT. Two sensor inputs and the retriggerable and adjustable tracking time useful for a wide range of applications. By using the reverse phase-control technique, the resistive load can be dimmed without the need of a com- pensation inductance ...

Page 2

... Figure 1-1. Block Diagram 1 V Ref 2 Reverse 3 phase control oscillator 6 Programing Triggering with buffers 7 8 U2102B 2 Voltage monitoring Control Divider logic 9 16 Synchronization Voltage limitation Push pull Current monitoring Temperature Test logic monitoring 4767B–INDCO–10/05 ...

Page 3

... Input current monitoring 12 IOFF Fast output current monitoring 13 GND Ground 14 VO Output voltage 15 +VS Supply voltage 16 SYNC Synchronization input 4767B–INDCO–10/05 1 VREF 2 CRAMP RRAMP 3 4 CONTROL U2102B 5 OSC PROG TRIGGER 8 SYNC GND IOFF TEST 9 V9 U2102B 3 ...

Page 4

... Figure 2-2. Block Diagram with Typical Circuit for DC Loads U2102B 4 4767B–INDCO–10/05 ...

Page 5

... Power Supply, Synchronization Pins 15 and 16 The U2102B’s voltage limitation circuit enables the power supply via the dropping resistor R the case of DC loads, the entire supply current flows into pin 16 and is supplied via an internal diode to pin 15, where the resultant supply voltage is limited and smoothed by C resistor at pin 16 is necessary in order to guarantee reliable synchronization ...

Page 6

... A sufficiently large residual phase angle must remain in this case to guarantee the device’s supply. The power supply is simplified if the device is operated as a static zero-voltage switch for AC loads (see module is connected directly to the AC line. U2102B 6 V – V ...

Page 7

... Chip Temperature Monitoring The U2102B includes a chip temperature monitoring circuit which disables the output stage when a temperature of approximately 140°C is reached. The circuit will only be enabled again after cooling down and when the operating voltage has been additionally switched off and on. ...

Page 8

... Signal Characteristics of Reverse Phase Control V mains Ref Ref V 14 U2102B reduced 5.5 V. The charging current is switched off at this point and 7). at pin 2 is set with the resistor R 3 0.45 V. The output stage is switched on at this value = I ...

Page 9

... set when the timer has enabled the output stage. max = The window discriminator is in the OFF state when the voltage at pin guarantees that there are no peak noise signals at the inputs ON U2102B = Ref = GND): ...

Page 10

... The RC values for a certain tracking time (µ reverse phase control mode, switchover from maximum current flow angle to the value set at pin 4 takes place after expiry of 3/4 of the total tracking time t U2102B 10 Trigger Condition Pin Ref 0.5 V Ref ...

Page 11

... Current Monitoring The U2102B’s current monitoring circuit represents a double electronic fuse. The circuit mea- sures the current flowing through the power switch by means of the voltage drop across the shunt resistor R due to a high load current (e.g., short circuit), the switch-off latch is set and the switching output pin 11 closes immediately ...

Page 12

... Input current V Programming, Tri-state Input Input current V Operating mode: Static zero-voltage switch 2-stage reverse phase control with switch-off 2-stage reverse phase control RC Oscillator Input current V Upper threshold Lower threshold Discharge impedance U2102B 12 Symbol R thJA R thJA R thJA Pin = ...

Page 13

... V 2 0.45 0.5 0. 100 115 T ±I 500 100 120 T1 V 450 500 550 T2 I lkg V Sat V Sat -V Sat V SatL - U2102B Unit 1 2 µA 1.0 V 1.2 V 2 ...

Page 14

... GND IGBT 100 R 1 1N4007 µF/ 100 U2102B 820 k Control 100 Ref NTC Ref ...

Page 15

... V mains 230 V ~ Load GND R sh IGBT 100 µF/ U2102B 750 NTC V Ref Enable 2 220 nF Trigger signal C 1 µF Ref U2102B 15 ...

Page 16

... 220 k sync U2102B 16 mains Load IGBT 100 1N4007 100 k 47 µF/ 25V U2102B 100 Control 100 100 100 k V ...

Page 17

... Ordering Information Extended Type Number U2102B-xY U2102B-xFPY U2102B-xFPG3Y 15. Package Information Package DIP16 Dimensions in mm Alternative 4767B–INDCO–10/05 Package DIP16 SO16 SO16 20.0 max 1.64 0.58 2.54 1.44 0.48 17. Remarks Tube, Pb-free Tube, Pb-free Taped and reeled, Pb-free 7.82 7.42 4.8 max 6.4 max 3.3 0.5 min 0.39 max 9.75 8.15 technical drawings according to DIN ...

Page 18

... Package SO16 Dimensions 16. Revision History Please note that the following page numbers referred to in this section refer to the specific revision mentioned, not to this document. Revision No. 4767B-INDCO-08/05 U2102B 18 10.0 9.85 0.4 1.27 8. History Put datasheet in a new template First page: Pb-free logo added Page 17: Ordering Information changed 5 ...

Page 19

... Atmel products are not suitable for, and shall not be used in, automotive applications. Atmel’s products are not intended, authorized, or warranted for use as components in applications intended to support or sustain life. © Atmel Corporation 2005. All rights reserved. Atmel marks or trademarks of Atmel Corporation or its subsidiaries. Other terms and product names may be trademarks of others. Atmel Operations Memory ...

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