Datasheet > HT7L5502

HT7L5502

更新时间： 2024-09-24 17:14:59

品牌	Logo	应用领域
台湾合泰/盛群 - HOLTEK		功率因数校正
页数	文件大小	规格书
14页	471K
描述
Primary-Side Regulation Dimmable LED Driver with Active PFC

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中文翻译

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数据手册

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HT7L5502 数据手册

HT7L5502/HT7L5503

Primary-Side Regulation

Dimmable LED Driver with Active PFC

Features

Applications

• Primary-side current regulation without secondary-

side feedback circuitry

• General illumination

• E26/27, T5/T8 LED lamps

• Smart lighting applications

• Power factor higher than 0.9

• Compatible with wide dimming range

♦

PWM dimming range: 5%~100%

General Description

♦

Analog dimming range: 10%~100%

The HT7L5502/03 is a controller for implementing

constant current LED driver with power factor

correction (PFC). By using primary-side regulation,

it controls the LED output current accurately without

the need of secondary-side feedback components. The

HT7L5502/03 operates in the quasi-resonant mode

to achieve higher efficiency. The output current can

be modulated by the DIM pin. The HT7L5502/03

integrates robust protection functions, including

output over voltage protection, output short-circuit

protection (SCP), VCC over voltage protection, VCC

under voltage lockout and over temperature protection

(OTP).

• Tight LED constant current regulation of ±3%

• Line compensation for enhanced LED current

accuracy

• Constant voltage regulation when LED is turned oﬀ

• Full protection functions for enhanced safety

♦

Output over voltage protection

♦

Output short-circuit protection

♦

VCC over voltage protection

♦

VCC under voltage lockout

♦

External/internal over temperature protection

• Package type: 8-pin SOP

Typical Application Circuit

R_SN2

C_SN2

D_OUT

C_OUT

F₁

C_SN1

R_SN1

R_DUMMY

N_P

N_S

AC Mains

R_ST

C_IN

D_SN

R_AUX

D_AUX

VCC

N_A

(Optional)

DIM

VCC

DRV

GND

ZCD

NTC

COMP

R_ZCD1

R_G

ZCD

R_PCS

R_NTC

ZCD

C_COMP

R_ZCD2

C_VCC

R_CS

C_CS

R_BIAS

HT7L5502

PWM Dimming Signal

OPTO

HT7L5502 Application Circuit for Dimming Signal from Secondary-Side

Rev. 1.00

November 15, 2023

12 3 4 5 6 7...14

中文翻译

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