BD8381EFV-E2 Rohm Semiconductor, BD8381EFV-E2 Datasheet - Page 12

• Manufacturer Part Number: BD8381EFV-E2
• Description: LED Drivers AUTOMOTIVE GRADE LED DRIVER
• Manufacturer: Rohm Semiconductor

Specifications of BD8381EFV-E2

• Operating Supply Voltage: 5 V to 30 V
• Maximum Supply Current: 7 mA
• Maximum Power Dissipation: 1.45 W
• Maximum Operating Temperature: + 125 C
• Mounting Style: SMD/SMT
• Package / Case: HTSSOP-28
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

● Procedure for external components selection
© 2010 ROHM Co., Ltd. All rights reserved.
BD8381EFV-M
www.rohm.com
Follow the steps as shown below for selecting the external components
1.
2.
3.
4.
5.
6.
7.
8.
9.
Work out IL_MAX from the operating conditions.
Select the value of RSC such that IOCP > IL_MAX
Select the value of L such that 0.05[V/µs] <
Select coil, schottky diodes, MOSFET and RCS which meet with the ratings
Select the output capacitor which meets with the ripple voltage requirements
Select the input capacitor
Work on with the compensation circuit
Work on with the Over-Voltage Protection (OVP) setting
Work on with the soft-start setting
10.
Verify experimentally
Vout
L
*RCS < 0.3[V/ µs]
12/20
Feedback the value of L
2010.10 - Rev.0.11
Technical Note