RT7080
Functional Block Diagram
VILDO
VIN
FB
SW SWGND
Internal
Regulator
HS Switch
Current
Comparator
UVLO
FB
Comparator
-
+
0.8V
Current
Sense
V5D
V5D
VIN EN
5V LDO
Logic &
Deadtime
VIN EN Control
Buck Converter
VIN
VIN EN
P0_12 EN
CP_PG
P0_12 EN
EN
Pre-Driver &
Current Sense Circuit
CP EN
Charge
Pump
VCP
CPP
CPN
VCP
VIN
RSTN
AD6
V5V
AD7
AD8
AD9
V5V
V5VN
V1P8
V1P8N
P0_6
3 phase motor controller
(RT7100)*
P0_7
P0_10
P0_11
P0_15
Control
Logic
Pre-Driver_L
VIN
VCP
Level
Shifter
P0_2
VLIN
Pre-Driver_H
V5D
Pre-Driver_L
LOV
Current Sense
DVSS
P0_1
WHIN
Vcs_V
Circuit
VIN
HOW
W
LOW
Current Sense
Vcs_W
VSS
Circuit
PGND
HOV
V
P0_4
ULIN
Driver
Current Sense
Vcs_U
VHIN
Circuit
P0_5
UHIN
P0_12
P0_12_EN
Pre-Driver_H
V5D
U
Level
Shifter
Driver
HOU
LOU
P0_3
VCP
P0_0
Vcs_U
Vcs_V
Vcs_W
Pre-Driver_L
WLIN
Level
Shifter
Pre-Driver_H
V5D
* : Please refer to AN_RT7100_Introduction_TW for how to use RT7100.
Copyright
©
2019 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
DS7080-00 August 2019
www.richtek.com
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