RT7204E datasheet(3/45 Pages) RICHTEK

3 / 45 page

RT7204E

is a registered trademark of Richtek Technology Corporation.

RT7204E_DS-00

May 2024

www.richtek.com

Table of Contents

General Description ................................................. 1

Applications .............................................................. 1

Features..................................................................... 1

Ordering Information................................................ 2

Marking Information ................................................. 2

Simplified Application Circuit.................................. 2

Pin Configuration ..................................................... 4

Functional Pin Description ...................................... 4

8.1

IO Type Definition............................................ 5

Functional Block Diagram ....................................... 6

Absolute Maximum Ratings..................................... 7

Recommended Operating Conditions .................... 7

Electrical Characteristics......................................... 7

Typical Application Circuit .................................... 14

Typical Operating Characteristics ........................ 16

Operation................................................................. 29

15.1

Power Structure............................................. 29

15.2

Constant Voltage and Constant Current

(CV/CC) Regulators ....................................... 29

15.3

Current Sense Amplifier ................................ 29

15.4

External Temperature Sensing ...................... 30

15.5

Interface of D+ and D- ................................... 30

15.6

Interface of CC1 and CC2 ............................. 31

15.7

Open-Drain Driver of The VBUS Pin ..............31

15.8

I2C Communication ........................................32

15.9

Rectification Detection ...................................32

Application Information..........................................33

16.1

Constant Voltage (CV) Loop ..........................33

16.2

Constant Current (CC) Loop ..........................33

16.3

Power-Up Sequence ......................................34

16.4

Output Voltage Rises and Falls......................35

16.5

Output Overvoltage Protection.......................36

16.6

Blocking N-MOSFET Control .........................37

16.7

VBUS Drop Protection ...................................38

16.8

Temperature Sensing and

Thermal Protection .........................................38

16.9

VIN Detection and LPS Protection ..................39

16.10 Thermal Considerations .................................39

Outline Dimension ..................................................40

Footprint Information..............................................41

Packing Information................................................42

19.1

Tape and Reel Data .......................................42

19.2

Tape and Reel Packing..................................43

19.3

Packing Material Anti-ESD Property ..............44

Datasheet Revision History....................................45

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