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Part Number: L9911B

 

 

 

 

Description: The L9911 is a monolithic multifunction alternator voltage regulator intended for use in automotive ap...


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L9911B General Description


The L9911 is a monolithic multifunction alternator voltage regulator intended for use in automotive application. It includes the control section, the field power stage, fault diagnostic circuit which drives a warning lamp, and the protection against short circuits.

L9911B Maximum Ratings

Symbol Parameter Value Unit
VS DC Supply Voltage (2 min. @ 25°C) 24 V
  Transient Supply Voltage (load dump) [see application circuit]
t<500ms		 40 V
  Transient Supply Voltage (low energy spikes) [see application
circuit] ISO7637-1 pulse 1,2,3 /ISO7637-3		 60 V
Tj Junction temperature range -40 to 150 °C
Tstg, Tcase Storage and case temperature range -40 to 150 °C
Ptot Total power Dissipation (@ Tcase 150°C, Ifield 5A) 4 W
  Reverse Battery Voltage (see application diagram) @ 25°C, T =
15 sec		 -2.5 V
  Normal working condition reverse voltage (P vs. GROUND) -1.5 V
  DC Pin Current on F+, B+, GND (bonding limitation) 15 A
  ESD Voltage MILSTD883C (All pins vs.GND) ±4 KV

L9911B Features

· FULLY MONOLITHIC DESIGN
· HIGH SIDE FIELD DRIVER
· THERMAL PROTECTION
· FIELD SHORT CIRCUIT PROTECTION
· PROTECTED DIAGNOSTIC LAMP DRIVER
· PROTECTED HIGH SIDE RELAY DRIVER
· COMPLEX DIAGNOSTICS
· LOAD RESPONSE CONTROL
· DFM OUTPUT (FIELD MONITOR)

L9911B Connection Diagram

L9911B Connection Diagram

L9911B datasheet

L9911B
PDF/DataSheet Download

  • Datasheet: L9911B
  • File Size: 190511 KB
  • Manufacturer: STMICROELECTRONICS [STMicroelectronics]
  • Click here to Download

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Related Part Number

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