Datasheet > RT8462

RT8462

更新时间： 2024-11-12 15:50:03

品牌	Logo	应用领域
立锜 - RICHTEK		/
页数	文件大小	规格书
16页	288K
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RT8462 技术参数

Status：	Active	Vin (min) (V)：	6
Vin (max) (V)：	36	Vout (max) (V)：	60
LED Channels：	1	Topology：	Boost;Buck
SW Freq (typ) (kHz)：	370	Vcs (typ) (mV)：	190
Dimming Control：	Analog;PWM;PWM-to-Analog	Features：	Adjustable Frequency;Adjustable Soft-Start;Enable Input;OCP;OVP
Package Type：	SOP-14

RT8462 数据手册

RT8462

High Voltage High Current LED Driver Controller for

Buck, Boost or Buck-Boost Topology

General Description

Features

^High Voltage Capability : V_INUp to 36V, LED Sensing

Threshold Common Mode Voltage Up to 60V

^Buck, Boost or Buck-Boost Operation

The RT8462 is a current mode PWM controller designed

to drive an external MOSFET for high current LED

applications. With a current sense amplifier threshold of

190mV, the LED current is programmable with one

external current sense resistor. With the maximum

operating input voltage of 36V and output voltage up to

60V, the RT8462 is ideal for buck, boost or buck-boost

operation.

^Programmable Switching Frequency

^Easy Dimming Control : Analog or Digital

Converting to Analog with One External Capacitor

^Programmable Soft-Start to Avoid Inrush Current

^Programmable Over Voltage Protection

^V_INUnder Voltage Lockout and Thermal Shutdown

^RoHS Compliant and Halogen Free

With the switching frequency programmable over 100kHz

to 1MHz, the external inductor and capacitors can be small

while maintaining high efficiency.

Applications

Dimming can be done by either analog or digital. The built-

in clamping comparator and filter allow easy low noise

analog dimming conversion from digital signal with only

one external capacitor.

 General Industrial High Power LED Lighting

 Desk Lights and Room Lighting

 Building and Street Lighting

 Industrial Display Backlight

The RT8462 is available in SOP-14 and WQFN-16L 3x3

packages.

Pin Configuration

(TOP VIEW)

Ordering Information

RSET

ISW

ISP

ISN

GATE

GBIAS

GND

VCC

OVP

RT8462

Package Type

S : SOP-14

QW : WQFN-16L 3x3 (W-Type)

ACTL

DCTL

Lead Plating System

G : Green (Halogen Free and Pb Free)

Z : ECO (Ecological Element with

Halogen Free and Pb free)

SOP-14

Note :

Richtek products are :

16 15 14 13

 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.

RSET

ISW

ISP

GND

VCC

OVP

GND

ISN

WQFN-16L 3x3

is a registered trademark of Richtek Technology Corporation.

DS8462-09 April 2019

www.richtek.com

12 3 4 5 6 7...16

中文翻译

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