Datasheet > RT8720B

RT8720B

更新时间： 2024-01-13 15:54:07

品牌	Logo	应用领域
立锜 - RICHTEK		/
页数	文件大小	规格书
9页	165K
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技术参数
数据手册

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RT8720B 技术参数

Status：	Active	Number of Phases：	1
System Frequency, fSCLK (MHz)：		ADC resolution (bits)：
MCU supply voltage, V5V, Min (V)：		MCU supply voltage, V5V, Max (V)：
Features：	OCP;OVP;UVP	Package Type：	UDFN2x2-8S
Datasheet：	https://datasheet5.oss-cn-shanghai.aliyuncs.com/datasheets/richtek/DS8720B-01.pdf

RT8720B 数据手册

RT8720B

Single-Phase Full-Wave Fan Motor Driver

General Description

Features

^Low Supply Current

The RT8720B is a single-phase driver IC for fan motors.

Rotation speed is controlled by supply voltage modulation.

In the supply voltage control application, the fan speed

slope is adjustable by the external voltage input. The

RT8720B provides several protection features including

lock protection, thermal shutdown, over-current protection

and under-voltage protection. In thermal shutdown mode,

the supply current is less than 100μA. The rotation

frequency is generated by FG output.

^Adjustable Voltage Control Fan Speed

^Supply Voltage Speed Control

^Smart Force Start-up Function

^Built-in Lock Protection

^Built-in Thermal Shutdown

^Built-in Over-Current Protection

^Built-in Frequency Generator with FG Output Signal

^Include Hall Bias Circuit

^RoHS Compliant and Halogen Free

Ordering Information

RT8720B

Applications

 Single-Phase Fan Motor forNotebook or PC

Package Type

QU : UDFN-8SL 2x2 (U-Type)

Lead Plating System

G : Green (Halogen Free and Pb Free)

Pin Configurations

Note :

(TOP VIEW)

Richtek products are :

OUT1

VCC

SET

OUT2

H+

H-

 RoHS compliant and compatible with the current require-

ments of IPC/JEDEC J-STD-020.

 Suitable for use in SnPb or Pb-free soldering processes.

UDFN-8SL 2x2

Marking Information

1V : Product Code

W : Date Code

1VW

Simplified Application Circuit

Optional

RT8720B

Supply

OUT2

VCC

Voltage

Single-Phase

Brushless

DC Motor

OUT1

H+

Pull-High Voltage

Floating

H-

Hall

SET

GND

is a registered trademark of Richtek Technology Corporation.

DS8720B-01 March 2014

www.richtek.com

12 3 4 5 6 7...9

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