In-Vehicle 1ch Low Side Switch - BD1LB500FVM-C

BD1LB500FVM-C is an in-vehicle 1ch low side switch. This switch builds in the overcurrent limiting circuit, thermal shutdown circuit, open load detection circuit and under voltage lock out circuit. It also provides the diagnostic output circuit when an abnormality is detected.

Part Number
Unit Quantity
Minimum Package Quantity
Packing Type
BD1LB500FVM-CGTR Active MSOP8 3000 3000 Taping Yes
Grade Automotive
Channel Number [ch] 1
Drain-Source Voltage (Max.)[V] 42.0
Output Current[A] 0.8
ON Resistance [mΩ] 350
Over Current Detect [A] 0.8
Active Clamp Energy [mJ] 25.0
Supply Voltage(Min.)[V] 3.5
Supply Voltage(Max.)[V] 5.5
Current consumption(Typ.)[µA] 500
Thermal Shut Down Self-restart
Open Load Detect [V] 2.0
Status Terminal Available
Junction Temperature Tj (Min.)[°C] -40
Junction Temperature Tj (Max.)[°C] 150
    • Built-in overcurrent limiting circuit
    • Built-in thermal shutdown circuit (TSD)
    • Built-in open load detection circuit (at output OFF)
    • Enables direct control from CMOS logic ICs, etc.
    • Low standby current
    • Built-in under voltage lock out circuit
    • Built-in diagnostic output (ST) terminal
    • Low ON resistance RDS (ON) =350mΩ (Typ) (VDD=IN=5V,
    • Ta=25°C, IOUT=0.25A)
    • Built-in overvoltage protection (active clamp) for output circuit
    • Monolithic power IC in which the control unit (CMOS) and power MOSFET are incorporated into one chip
    • 1ch low side switch for driving mechanical relay coil
    • AEC-Q100 Qualified
Other New/Updated Products Relating to Power Management
PART NUMBER Product Name Package Datasheet Distribution Inventory
BD1LB500EFJ-C In-Vehicle 1ch Low Side Switch HTSOP-J8   Buy Sample
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Technical Data
Thermal Resistance

The definition and how to use thermal resistance and thermal characterization parameter of packages for ROHM’s integrated circuit are described in this application note.