FDMF6707C Datasheet, PDF (2/18 Pages) Fairchild Semiconductor – Extra-Small, High-Performance, High- Frequency DrMOS Module

Typical Application Circuit
V_5V
C_VDRV
C_VIN
V_IN
3V ~ 15V
DISB#
2.2V
OFF
ON
Open Drain
Output
DISB#
VDRV
VCIN
VIN
BOOT
R_BOOT
PWM
SMOD#
FDMF6707C
PHASE
VSWH
THWN#
CGND
PGND
C_BOOT
L_OUT
C_OUT
V_OUT
Figure 1. Typical Application Circuit
DrMOS Block Diagram
VCIN
UVLO
DISB#
10µA
V_CIN
R_{UP_PWM}
PWM
R_{DN_PWM}
Input
3-State
Logic
THWN#
Temp.
Sense
VDRV
GH
Logic
GL
Logic
V_CIN
10µA
DBoot
Level Shift
Dead-Time
Control
BOOT
VIN
Q1
HS Power
MOSFET
GH
30kΩ
PHASE
V_DRV
VSWH
GL
30kΩ
Q2
LS Power
MOSFET
CGND
SMOD#
Figure 2. DrMOS Block Diagram
PGND
© 2011 Fairchild Semiconductor Corporation
FDMF6707C • Rev. 1.0.1
2
www.fairchildsemi.com