Product Summary

The LS7232 is a monolithic, MOS integrated circuit designed for the control of brightness of incandescent lamps. The outputs of these ICs control the brightness of a lamp by controlling the firing angle of a triac connected in series with the lamp. All internal timings are synchronized with the line frequency by means of a built-in phase-lock loop circuit. The output occurs once every half-cycle of the line frequency. Within the halfcycle, the LS7232 output can be positioned anywhere between 158°conduction angle for maximum brightness and 41 conduction angle for minimum brightness in relation to the AC line frequency. The positioning of the output is controlled by applying a low level at the SENS input or a high level at the EXT input.

Parametrics

LS7232 absolute maximum ratings: (1)Phase-lock loop synchronization allows use in Wall Switch applications.; (2)Provides brightness control of incandescent lamps with touch plates or mechanical switches.; (3)Controls the duty cycle from 23% to 88% (conduction angles for AC half-cycles between 41 and 158 respectively.); (4)Operates at 50Hz/60Hz line frequency.; (5)Extension input for remote activation.; (6)Input for slow dimming.; (7)+12V to +18V DC Power Supply voltage. (VSS - VDD).

Features

LS7232 features: (1)DC Supply Voltage VSS: +20 V; (2)Any Input Voltage VIN: VSS -20 to VSS + 0.5 V; (3)Operating Temperature TA: 0 to +80 ℃; (4)Storage Temperature TSTG: -65 to +150 ℃.

Diagrams

LS7232 PIN ASSIGNMENT

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
LS7232NT
LS7232NT
Other

Data Sheet
Negotiable 
Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
LS720A-RH
LS720A-RH

INVERTER 10.8-13.2V IN 1650V OUT
Data Sheet
Negotiable 
LS7210
LS7210
Other

Data Sheet
Negotiable 
LS7211
LS7211
Other

Data Sheet
Negotiable 
LS7212
LS7212
Other

Data Sheet
Negotiable 
LS7213
LS7213
Other

Data Sheet
Negotiable 
LS7220
LS7220
Other

Data Sheet
Negotiable