FDMF6840C View Datasheet(PDF) - Fairchild Semiconductor
Part Name
Description
MFG CO.
'FDMF6840C' PDF : 19 Pages View PDF
Typical Application Circuit
V5V
CVDRV
CVIN
VIN
3V ~ 16V
DISB#
PWM Input
OFF
ON
Open-Drain
Output
DISB#
VDRV
VCIN
VIN
BOOT
RBOOT
PW M
SMOD#
FDMF6840C
PHASE
VSW H
THWN#
CGND
PGND
CBOOT
LOUT
COUT
VOUT
Figure 1. Typical Application Circuit
DrMOS Block Diagram
VCIN
UVLO
DISB#
10µA
VCIN
RUP_PWM
PWM
RDN_PWM
Input
3-State
Logic
THWN#
Temp.
Sense
VDRV
GH
Logic
DBoot
Level-Shift
Dead-Time
Control
VCIN
GL
Logic
10µA
BOOT
VIN
Q1
HS Power
MOSFET
GH
30k
PHASE
VDRV
VSWH
GL
30k
Q2
LS Power
MOSFET
CGND
SMOD#
Figure 2. DrMOS Block Diagram
PGND
© 2015 Fairchild Semiconductor Corporation
FDMF6840C • Rev. 1.0
2
www.fairchildsemi.com
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