voltage regulator. L9474N Datasheet

L9474N regulator. Datasheet pdf. Equivalent

L9474N Datasheet
Recommendation L9474N Datasheet
Part L9474N
Description All silicon voltage regulator
Feature L9474N; L9474N All silicon voltage regulator Datasheet - production data Multiwatt 8 GAPG0505150828PS Fea.
Manufacture STMicroelectronics
Datasheet
Download L9474N Datasheet




STMicroelectronics L9474N
L9474N
All silicon voltage regulator
Datasheet - production data
Multiwatt 8
GAPG0505150828PS
Features
High side field driver
Thermal protection
Field driver short circuit protection
RVC interface
Overvoltage protection
Complex diagnostics
Load Response Control
Description
The L9474N is a monolithic multifunction
generator voltage regulator intended for use in
automotive applications.
This device regulates the output of an automotive
generator by controlling the field winding current
by means of a variable frequency PWM high side
driver.
The setpoint voltage reference is selected by the
ENGINE CONTROL UNIT via RVC protocol.
Table 1: Device summary
Order code
Package
Packing
L9474N
Multiwatt 8
Tube
May 2015
This is information on a product in full production.
DocID027831 Rev 1
1/13
www.st.com



STMicroelectronics L9474N
Contents
Contents
L9474N
1 Schematic diagram and pin description ........................................ 5
1.1 Schematic diagram ........................................................................... 5
1.2 Pin description................................................................................... 5
2 Electrical specification.................................................................... 6
2.1 Absolute maximum ratings ................................................................ 6
2.2 Thermal data ..................................................................................... 6
2.3 Electrical characteristic ..................................................................... 6
2.4 Diagnostic ......................................................................................... 8
2.5 Fault .................................................................................................. 8
2.6 Regulation features ........................................................................... 8
3 Package information ..................................................................... 10
3.1 Multiwatt 8 (pin 5 GND) package information.................................. 10
4 Revision history ............................................................................ 12
2/13 DocID027831 Rev 1



STMicroelectronics L9474N
L9474N
List of tables
List of tables
Table 1: Device summary ...........................................................................................................................1
Table 2: Pin description ..............................................................................................................................5
Table 3: Absolute maximum ratings ...........................................................................................................6
Table 4: Thermal data.................................................................................................................................6
Table 5: Electrical characteristic .................................................................................................................6
Table 6: Diagnostic .....................................................................................................................................8
Table 7: Fault driver to function list condition .............................................................................................8
Table 8: Regulation features.......................................................................................................................8
Table 9: Multiwatt 8 (pin 5GND) package mechanical drawing................................................................11
Table 10: Document revision history ........................................................................................................12
DocID027831 Rev 1
3/13







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