RT5081
Functional Block Diagram
CHG_VDDP
Charger / USB PD / FLED
CHG_VMID
CHG_BOOT
CHG_VIN
OVP_CTRL
VBUS
LDO
OVP Controller
UUG Controller
BL_VDDA
PD_VDDA
( To VBUS ) PD_VBUS
PD_VCONN5V
CHG
Protection
Charger/OTG
Controller
CHG
H/L
Programmable
USB Type-C PD
Controller
CHG_VLX
Driver
PD_CC1
PD_CC2
PD_IRQB
CHG_PGND
D+
D-
BC 1.2
FL_VMID ( To CHG_VMID )
FL_VINTORCH ( To SYS )
( To VBAT sense) VBATS
CHG_VBATOVPB
CHG_STAT
CHG_DSEL
CHG State Machine
FLED
Controller
FL_LEDCS1
FL_LEDCS2
CHG_OTG
CHG_EN
CHG_ILIM
CHG_QONB
FL_TORCH
FL_STROBE
FL_TXMASK
CHG_VMID
VBAT
VSYS
VDDA
Power Path
Controller
ADC
Silicon
Temp
Detection
VDDA
Regulator
VDDM
AGND
VBAT
TS
BASE
TS Detector
SCL
SDA
I2C
RGB Driver
RGB_ISINK1
RGB_ISINK2
RGB_ISINK3
RGB_ISINK4
MRSTB
IRQB
RGB Current
Stage
RGB Control
System Digital Controller
RGB PWM RC
LDO
LDO_VOUT
LDO_VIN
VREF
VFB
-
+
LDO
Core
Display Bias
DB_VDDA
LDO_VOUT
BL_VDDA
DB_NEGCF1
DB_NEGCF2
DB_NEGVOUT
Inverting
Charge
Pump
NEG SCP
POS SCP
BackLight
DB_NEGPGND
BL
Protection
BL_VOUT
BL_VLX
DB_POSVOUT
DB_BSTVOUT
LDO
BL PWM/Drv
BL_PGND
Min
Headroom
Select
DB BST
H/L
Driver
BL DC to
DC Core
DB_POSVLX
DB BST
Control
BL_LED1
BL_LED2
BL_LED3
BL_LED4
BL Current
Stage
DB_POSPGND
PWM
Logic
BL Control
Logic
OCP
PWM RC
BL_PWM
BL_EN
DB_ENP
DB_ENN
Copyright 2018 Richtek Technology Corporation. All rights reserved.
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is a registered trademark of Richtek Technology Corporation.
www.richtek.com
10
DS5081-00 January 2018
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
