DS3988

更新时间： 2024-09-23 04:15:15

品牌	Logo	应用领域
美信 - MAXIM		控制器
页数	文件大小	规格书
23页	778K
描述
8-Channel Cold-Cathode Fluorescent Lamp Controller

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数据手册

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DS3988 数据手册

Rev 0; 4/05

8-Channel Cold-Cathode

Fluorescent Lamp Controller

General Description

Features

The DS3988 is an 8-channel controller for cold-cathode

fluorescent lamps (CCFLs) used to backlight liquid

crystal displays (LCDs) in TV and PC monitor applica-

tions. The DS3988 supports configurations of 1 to 8

lamps, and multiple DS3988 controllers can be cascad-

ed to support applications requiring more than 8 lamps.

♦ High-Density CCFL Controller for LCD TV and PC

Monitor Backlights

♦ Can Be Easily Cascaded to Support More Than

8 Lamps

♦ Minimal External Components

♦ Analog Brightness Control

Applications

♦ Per-Channel Lamp Control Ensures Equal

Brightness Among Lamps and Maximizes Lamp

Life

LCD Televisions

LCD PC Monitors

♦ Gate Driver Phasing Minimizes DC Supply Current

Surges

Ordering Information

♦ Per-Channel Lamp Fault Monitoring for Lamp

Open, Lamp Overcurrent, Failure to Strike, and

Overvoltage Conditions

PART

TEMP RANGE

-40°C to +85°C

PꢀN-PACKAGE

48 TQFP

DS3988T

DS3988T+

48 TQFP

♦ Accurate (±±5% ꢀndependent On-Board Oscillators

for Lamp Frequency (40kHz to 80kHz% and DPWM

Burst Dimming Frequency (22.±Hz to 440Hz%

+Denotes lead-free package.

Pin Configuration

♦ Can Be Synchronized to External Sources for the

Lamp and DPWM Frequencies

♦ <105 to 1005 Dimming Range

TOP VIEW

♦ Programmable Soft-Start Minimizes Audible

Transformer Noise

♦ ꢀ²C-Compatible Serial Port and On-Board

Nonvolatile (NV% Memory Allow Device

Customization

GA1

GB1

OVD8

LCM8

GB8

LCM1

OVD1

GA2

GA8

♦ 8-Byte NV User Memory for Storage of Serial

OVD7

LCM7

GB7

Numbers and Date Codes

DS3988

GB2

♦ 4.±V to ±.±V Single-Supply Operation

♦ -40°C to +8±°C Temperature Range

♦ 48-Lead TQFP (7mm x 7mm% Package

LCM2

OVD2

GA3

GA7

OVD6

LCM6

GB6

GB3 10

LCM3 11

OVD3 12

GA6

I C is a trademark of Philips Corp. Purchase of I C compo-

nents from Maxim Integrated Products, Inc., or one of its subli-

censed Associated Companies, conveys a license under the

Philips I C Patent Rights to use these components in an I C

system, provided that the system conforms to the I C Standard

Specification as defined by Philips.

48-LEAD TQFP

7 x 7 x 1.0mm

Typical Operating Circuit appears at end of data sheet.

______________________________________________ Maxim Integrated Products

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at

1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

12 3 4 5 6 7...23

中文翻译

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与DS3988相关器件

型号	品牌	获取价格	描述	数据表
DS3988T	MAXIM	获取价格	8-Channel Cold-Cathode Fluorescent Lamp Controller
DS3988T+	MAXIM	获取价格	8-Channel Cold-Cathode Fluorescent Lamp Controller
DS3988T+T&R	MAXIM	获取价格	Power Factor And Fluorescent Light Controller, 80kHz Switching Freq-Max, PQFP48, 7 X 7 MM,
DS3991	MAXIM	获取价格	Low-Cost CCFL Controller
DS3991V	MAXIM	获取价格	Low-Cost CCFL Controller
DS3991VC	MAXIM	获取价格	Low-Cost CCFL Controller
DS3991VR	MAXIM	获取价格	Low-Cost CCFL Controller
DS3991VRC	MAXIM	获取价格	Low-Cost CCFL Controller
DS3991VT	MAXIM	获取价格	Low-Cost CCFL Controller
DS3991VTC	MAXIM	获取价格	Low-Cost CCFL Controller

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