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L121A Datasheet Preview

L121A Datasheet

TRIAC/SCR BURST CONTROL

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L121A pdf
LINEAR INTEGRATED CIRCUIT
TRIAC/SCR BURST CONTROL
The L 121 A is a monolithic integrated circuit in 16-lead dual in-line plastic packa!je. It incorporates the
following functions:
AC supply 50/60 Hz
Zero-voltage detector
Ramp generator
Inhibition of casual firing pulses
Stabilization of the internal positive DC supply
High gain operational amplifier
Output short-circuit protection
The L 121A is intended for use as a burst controller in industrial and consumer applications.
ABSOLUTE MAXIMUM RATINGS
19
I Db ID2
V 14
V S- 12
V 10-12
V 1_2
V 3 -5
Ptot
Tstg
Top
AC Peak supply current
Input diodes peak current
Maximum voltage (pin 14)
Positive clamp voltage
Negative clamp voltage
Differential input voltage
Differential input voltage
Total power dissipation at Tamb = 85°C
Storage temperatu re
Operating junction temperature
60
1
20
15
15
±7
±8
800
-55 to 150
-25 to 150
mA
A
V
V
V
V
V
mW
°C
°C
ORDERING NUMBER: L 121AB
MECHANICAL DATA
Dimensions in mm
41 6/82



SGS
SGS

L121A Datasheet Preview

L121A Datasheet

TRIAC/SCR BURST CONTROL

No Preview Available !

L121A pdf
CONNECTION DIAGRAM (top view)
RAMP VOLTAGE
AMPLIFIER OUTPUT
NON INV. AMPLIF INPUT
DC REFERENCE VOLTAGE
INV. AMPLIFIER INPUT
STABILIZED DC SUPPLY
GATE PULSE OUTPUT
POSITIVE RECTIFIER SUPPLY
16 CURRENT GENERATOR
15 OUTPUT LOGIC CIRCUIT
14
ZERO LOW VOLTAGE
DETECTOR
GND
GND
CHOPPER
NEG. RECTIFIER SUPPLY
AC SUPPLY
5-3517 f1
BLOCK DIAGRAM
+---1
Ii
I[
.L
42
S-3518


Part Number L121A
Description TRIAC/SCR BURST CONTROL
Maker SGS
Total Page 8 Pages
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L121A pdf
L121A Datasheet PDF
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