Press Center
Home About us Products Support Quality & Certification Career Contact us
• Power Management
    Linear Regulators
    Low Dropout Linear Regulators
    DDR Termination Regulators
    Shunt Reference Regulators
    Step Down Switching Regulators
    Switching Regulator
    Step-Up DC-DC Converter
    PWM Controller
    White LED Driver
    Supervisory Circuit
    Voltage Detection and System R
    USB Power Switch
    Power Factor Control
    Li-Battery Protection or Charg
    FET Bias Controllers
    Combo IC
    Inverting DC-DC Converter
• Amplifier / Comparator
    Audio Amplifiers
    Operational Amplifier
    Voltage Comparator
• Analog Switches
    Video Signal Switch
    Analog Multiplexers, Demultipl
• Hall ICs
• Special Application ICs
    Motor Controller IC
    Interface and Driver Circuit
    Telecommunication Circuit
    Melody IC
    Alarm /Sound Generator IC
    Remote Controller IC
    Television Circuit
    Leakage Current Detector
    Automotive IC
    A-D or D-A Converters
    Radio and Cassette Recorder Ci
    Mouse&Keyboard Controller
    Transient Voltage Suppressors
    Sense Monitor
    Video Filter
    ZCB snubber
• Logic
    Power Mosfet
• SCRs
Home >
UL497 Datasheet

As an integrated electronic ignition controller for breakerless
ignition systems which uses Hall effect sensors, the UTC UL497
drives an NPN external darlington to control the coil current
providing the required stored energy with low dissipation.
One of the UTC UL497 special features is the programmable
time for the recovery of the correct dwell ratio Td/T while the coil
peak current fails to reach 94 % of the nominal value.
* Direct driving of the external power darlington
* Coil current charent charging angle control
* Programme coil current peak limitation
* When 94% nominal current not reached programmable dwell recovery time 
* RPM output
* Has peranent conduction protection
* Overvoltage protection 
* Internal supply zener
* Reverse battery protection
About us  |  Products  |  Contact us
Copyright 2011 UTC All received