COUNTDOWN POWER TIMER Data Sheet 27462.20A COUNTER OSC.
|
|
|
Top Searches for this datasheet
COUNTDOWN POWER TIMER
COUNTDOWN POWER TIMER
Data Sheet 27462.20A
COUNTER
OSC. GROUND OUTPUT TOGGLE
MODE SELECT CONNECTION CONNECTION SUPPLY
Dwg. PS-016 Dwg. PS-016
VREG
ULQ2436M rugged, long-duration countdown timer specifically designed operate automotive industrial environment. uses internal oscillator drive digital countdown circuit timing periods typically 2-1/2 minutes. ULQ2436M multiplies oscillator period 4064. Internal logic automatically cause timeout halved successive timeouts. technology used countdown logic circuitry conventional linear bipolar devices oscillator output power functions. This combination, together with low-cost 8-pin mini-DIP plastic package, results very economical power timer suitable wide variety applications. Darlington-connected output driver capable switching loads
Supply Current, IREG Output Current, IOUT
Output Voltage, VOUT Input Voltage, min.) (continuous)
Package Power Dissipation, Graph
FEATURES
ABSOLUTE MAXIMUM RATINGS +25°C
V/400 Output Switch Low-Cost Ceramic Timing Capacitor Dual-Mode Timing Operation -40°C +85°C Operation Operation Internal Stabilizing Regulator Low-Cost 8-Pin Mini-DIP
APPLICATIONS
Automotive Rear-Window Defogger Timer Automotive Courtesy Light Timer Appliance Power Timer Power Control System
Operating Temperature Range, -40°C +85°C Storage Temperature Range, -65°C +150°C
Always order complete part number:
ULQ2436M
COUNTDOWN POWER TIMER
ALLOWABLE PACKAGE POWER DISSIPATION WATTS
55°C/W
TEST CIRCUIT TYPICAL REAR-WINDOW DEFOGGER APPLICATION
COUNTER
VREG
FREE AIR, 80°C/W
TOGGLE
TEMPERATURE
Dwg. GP-009-1B Dwg. ES-012A
ELECTRICAL SPECIFICATIONS -40°C +85°C, (unless otherwise specified).
Limits Characteristic Regulator Voltage Output Saturation Voltage Test Conditions IREG Output IOUT +25°C IOUT +25°C Output Leakage Current VOUT VOUT Open Circuit Input Threshold Voltage Oscillator Tolerance Series Resistor +25°C -40°C +85°C Divider Count (VCC Initial Timeout Subsequent Timeouts Min. 4064 2032 Max. 1.35 ±3.0 ±6.0 4064 2032 Units
Northeast Cutoff, 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000 Copyright 1987, 1993, Allegro MicroSystems, Inc.
COUNTDOWN POWER TIMER
CIRCUIT DESCRIPTION
OSC. external resistor range external capacitor range 0.001 determine frequency internal oscillator. period oscillation nominally RTCT with overall output time period (after digital countdown) 4064 RTCT where seconds. also MODE SELECT. OUTPUT. output open-collector Darlington-connected transistor. output (low) during timing period. external Zener diode used protect output against inductive-load switching transients automotive "load dump". TOGGLE. push-button, momentary-action switch this input toggles timer from state. oscillator countdown circuitry started rising edge input pulse. Internal de-bounce circuitry included. SUPPLY. timer requires supply current applied this through current-limiting resistor (RS). internal volt Zener diode shunt regulator provides stable supply device over wide supply voltage variations. Capacitor used provide decoupling. MODE SELECT. With MODE SELECT connected GROUND, first activation will preset time delay. activations after first will time half initial preset time. This sequence reset each time supply interrupted. With MODE SELECT connected SUPPLY (VREG), timer will repeat preset time delay each time activated.
COURTESY LIGHT
COURTESY LIGHT TIMER
BATTERY
COUNTER
VREG
Dwg. ES-013
Allegro MicroSystems, Inc. reserves right make, from time time, such departures from detail specifications required permit improvements design products. Components made under military approvals will accordance with approval requirements. information included herein believed accurate reliable. However, Allegro MicroSystems, Inc. assumes responsibility use; infringements patents other rights third parties which result from use.
Other recent searches
UCC2895 - UCC2895 UCC2895 Datasheet
SPI11N60S5 - SPI11N60S5 SPI11N60S5 Datasheet
SPP11N60S5 - SPP11N60S5 SPP11N60S5 Datasheet
SPB11N60S5 - SPB11N60S5 SPB11N60S5 Datasheet
S6C0671 - S6C0671 S6C0671 Datasheet
R66ZOV271HC - R66ZOV271HC R66ZOV271HC Datasheet
MBT3904DW1T1 - MBT3904DW1T1 MBT3904DW1T1 Datasheet
EPF8110S - EPF8110S EPF8110S Datasheet
Privacy Policy | Disclaimer
© 2012 Datasheet Archive
