L9473

www.DataSheet4U.com L9473 CAR ALTERNATOR VOLTAGE REGULATOR 1 ■ FEATURES FOR AIR AND LIQUID COOLED APPLICATIONS AMBIENT AIR TEMPERATURE (THERMISTOR) COMPENSATED SPECIAL DEFAULT COMPENSATION CURVE WITH TS-TERMINAL OPEN COMPENSATION CURVE WITH APPLICATION SPECIFIC RESISTOR ON TS THERMAL PROTECTION FIELD DRIVER, LAMP DRIVER, RELAY DRIVER, AND DF (FIELD MONITOR) SHORT CIRCUIT PROTECTED LOAD RESPONSE CONTROL SINGLE PHASE AUTOSTART Figure 1. Package ■ Multiwatt8 ■ Table 1. Order Codes Part Number L9473J Package Multiwatt8 ■ ■ ■ Voltage regulator intended for use in automotive charging applications. This All Silicon Voltage Regulator regulates the output of an automotive generator by controlling the field winding current by means of a variable frequency PWM high side driver. ■ ■ 2 DESCRIPTION The L9484 is a monolithic multifunction generator Figure 2. Block Diagram NTC 7 4 1 8 2 6 3 May 2005 Rev. 1 1/9 L9473 Table 2. PIN DESCRIPTION N° 1 2 3 4 5 Pin VGO F+ G TS Gnd Field Driver - High Side Drive Output Ground for ASVR (Must be connected for Ground for ASVR) Thermistor Sense Terminal Internally connected to the Tab or Slug in MW-8. Shall not be used for ASVR Ground, nor voltage applied to Pin 5 to cause ≥ 50mV Pin 5 to Pin 3. May be unconnected or externally connected to Pin 3. Inverted Field Monitor Output Lamp - Low Side Driver; Relay - High Side Driver Phase Sense Input Description Generator Output – Voltage Sense and Power Supply to ASVR www.DataSheet4U.com...