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HV9930P-G

更新时间： 2024-09-30 03:43:11

品牌	Logo	应用领域
超科 - SUPERTEX		驱动器
页数	文件大小	规格书
7页	526K
描述
Hysteretic Boost-Buck (Cuk) LED Driver ICs

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中文翻译

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数据手册

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HV9930P-G 数据手册

HV9930

Hysteretic Boost-Buck (Čuk) LED Driver ICs

Features

General Description

ꢀ

Constant Output Current

Steps Output Voltage Up or Down

Low EMI

Variable Frequency Operation

Internal 8 to 200V Linear Regulator

Input and output current sensing

Input Current limit

The HV9930 is a variable frequency PWM controller IC

designed to control an LED lamp driver using a low noise

boost-buck (Cuk) topology. The HV9930 uses hysteretic-

current mode control to regulate both the input and the output

currents. This enables fast transient response (required for

PWM dimming) without the necessity for complex loop

compensation. Input current control enables current limiting

during startup and output overload conditions. Capacitive

isolation protects the LED Lamp from failure of the switching

MOSFET. HV9930 provides a low-frequency PWM dimming

input that can accept an external control signal with a duty ratio

of 0-100%.

Enable & PWM Dimming

Applications

ꢀ

Automotive LED Drivers

RGB backlight applications

Battery Powered LED Lamps

Other Low Voltage AC/DC or DC/DC LED Drivers

The HV9930 based LED driver is ideal for automotive LED

lamps and RGB backlight applications with low voltage DC

inputs. The HV9930 based LED Lamp drivers can achieve

efficiency in excess of 80%.

Typical Application Circuit

VDC

cs1

cs2

s2a

HV9930

V_IN

V_DD

s2b

GATE

CS1

GND

PWMD

CS2

ref2

REF

ref1

A090805

Supertex inc. 1235 Bordeaux Drive, Sunnyvale, CA 94089 Tel: (408) 222-8888

FAX: (408) 222-4895 www.supertex.com

A090805

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