FDMS2380 Datasheet, PDF (1/15 Pages) Fairchild Semiconductor – Dual Integrated Solenoid Driver

August 2007
FDMS2380
Dual Integrated Solenoid Driver
Features
„ 5A, 60V Load Clamp
„ r_DS(ON) = 30mΩ (Typ.) Excitation path
„ 6V to 26V Operation
„ CMOS Compatible
„ Soft Short Detection
„ Thermal Shutdown
„ Diagnostic Output
„ Integrated Clamps
„ Over-current Protection
„ Open Load Detection
„ Over-voltage Protection
Applications
„ Transmission Solenoid Driver
„ Inductive Load Management
General Description
The FDMS2380 is an intelligent low side driver with built in
recirculation and demagnetization circuits designed
specifically for driving inductive loads. The inputs are
CMOS compatible. A separate diagnostic signal for each
channel provides the system with an indication of the
operation of the solenoid or the presence of a protection
fault condition. Built-in Over-voltage, Over-current, Over-
temperature circuits protect the device from these
conditions. Additional diagnostic circuitry is included for
detecting Open Load, Under-voltage and output ground
fault conditions. The FDMS2380 contains two independent
intelligent low side solenoid drivers.
Pin 1
Power QFN
Internal Logical Block Diagram (One of two Identical Channels)
VBATT
INA
INB
DIAG
Volt Regulator
& Over / Under
Voltage Detect
Control
Logic
Soft Short
&
Recirculation
Over Temp
Shutdown
Open Load
Detect
PDMOS
Driver
& Clamp
Diagnostic Control
&
Pulse Generation
Over
Current
Shutdown
NDMOS
Driver
Power
PDMOS
Recirculation
Device
OUT
Power
NDMOS
Excitation
Device
©2007 Fairchild Semiconductor Corporation
1
FDMS2380 Rev. A
GND
www.fairchildsemi.com