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RT7205AL Datasheet(PDF) 4 Page - Richtek Technology Corporation

Part # RT7205AL
Description  Programmable SMPS and USB Type-C Controller
PDF  36 Pages
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Manufacturer  RICHTEK [Richtek Technology Corporation]
Direct Link  http://www.richtek.com
Logo RICHTEK - Richtek Technology Corporation

RT7205AL Datasheet(HTML) 4 Page - Richtek Technology Corporation

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RT7205A
4
DS7205A-00
February 2018
www.richtek.com
©
Copyright
2018 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
Functional Pin Description
Pin No.
Pin Name
Type
Pin Function
1
V_TR
AI
Transformer voltage sense node.
2
CS+
AI
Positive input of a current-sense amplifier for output current sensing.
3
CS-
AI
Negative input of a current-sense amplifier for output current sensing.
4
D-
A/D IO
USB D- channel.
5
D+
A/D IO
USB D+ channel.
6
CC_GND
GND
Alternative ground for CC1 and CC2.
7
CC1
A/D IO
Type-C connector Configuration Channel (CC) 1, used to detect a cable
plug event and determine the cable orientation.
8
CC2
A/D IO
Type-C connector Configuration Channel (CC) 2, used to detect a cable
plug event and determine the cable orientation.
9
RT
A/D I
Remote thermal sensor connection node for over-temperature protection.
10
IFB
AI
Feedback input for the constant-current loop.
11
VFB
AI
Feedback input for the constant-voltage loop.
12
OPTO
AO
Current sink output for optocoupler connection.
13
OVP
AO
Over-voltage fault indication output, used to pull low an optocoupler.
14
USBP
D IO
Control signal of the blocking N-MOSFET
15
VDD
PWR
Supply input voltage.
16
VDD
PWR
Supply input voltage.
17
AGND
GND
Analog ground.
18
V2
PWR
Regulated DC bias to supply for the MCU.
19
V5
PWR
Regulated DC bias to supply for internal circuitry.
20
VCP
AO
Charge pump driver output.
21
V9
PWR
Regulated DC bias to supply for the synchronous rectifier driver.
22
VG
AO
Gate driver output for the SR MOSFET.
23
PGND
GND
Power ground.
24
BLD
D IO
Bleeder connection node to provide another path to discharge the output
capacitor.
25
(Exposed Pad)
GND
GND
Power ground. The exposed pad must be connected to GND and well
soldered to a large PCB copper area for maximum power dissipation.



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