Datasheet > DS3882_10

DS3882_10

更新时间： 2024-11-07 09:56:39

品牌	Logo	应用领域
美信 - MAXIM		控制器
页数	文件大小	规格书
31页	445K
描述
Dual-Channel Automotive CCFL Controller

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DS3882_10 数据手册

19-5666; Rev 2; 12/10

Dual-Channel Automotive CCFL Controller

DS382

General Description

Features

♦ Dual-Channel CCFL Controllers for Backlighting

The DS3882 is a dual-channel cold-cathode fluorescent

lamp (CCFL) controller for automotive applications that

provides up to 300:1 dimming. It is ideal for driving

CCFLs used to backlight liquid crystal displays (LCDs)

in navigation and infotainment applications and for dri-

ving CCFLs used to backlight instrument clusters. The

DS3882 is also appropriate for use in marine and avia-

tion applications.

LCD Panels and Instrument Clusters in

Automotive Navigation/Infotainment Applications

♦ Minimal External Components Required

♦ I C Interface

♦ Per-Channel Lamp-Fault Monitoring for Lamp-

Open, Lamp-Overcurrent, Failure to Strike, and

Overvoltage Conditions

The DS3882 features EMI suppression functionality and

provides a lamp current overdrive mode for rapid lamp

heating in cold weather conditions. The DS3882 sup-

ports configurations of 1 or 2 lamps with fully indepen-

dent lamp control and minimal external components.

Multiple DS3882 controllers can be cascaded to sup-

port applications requiring more than 2 lamps. Control of

the DS3882, after initial programming setup, can be

♦ Status Register Reports Fault Conditions

♦ Accurate ( 5%) Independent On-Board Oscillators

for Lamp Frequency (40kHz to 100kHz) and DPWM

Burst-Dimming Frequency (22.5Hz to 440Hz)

♦ Lamp and DPWM Frequencies can be

Synchronized with External Sources to Reduce

Visual LCD Artifacts in Video Applications

♦ Optional Spread-Spectrum Lamp Clock Reduces

completely achieved through I C software communica-

EMI

tion. Many DS3882 functions are also pin-controllable if

software control is not desired.

♦ Lamp Frequency can be Stepped Up or Down to

Move EMI Spurs Out of Band

Applications

♦ Lamp Current Overdrive Mode with Automatic

Turn-Off Quickly Warms Lamp in Cold

Temperatures

Automotive LCDs

Instrument Clusters

♦ Analog and Digital Brightness Control

Marine and Aviation LCDs

♦ 300:1 Dimming Range Possible Using the Digital

Pin Configuration

Brightness Control Option

♦ Programmable Soft-Start Minimizes Audible

TOP VIEW

Transformer Noise

FAULT

28 OVD2

27 LCM2

26 GB2

♦ On-Board Nonvolatile (NV) Memory Allows Device

Customization

SDA

♦ 8-Byte NV User Memory for Storage of Serial

SCL

25 GA2

Numbers and Date Codes

LSYNC

LOSC

BRIGHT

PSYNC

POSC

24 V

♦ Low-Power Standby Mode

DS3882

23 PDN

22 LCO

21 GND

20 STEP

19 N.C.

18 OVD1

17 LCM1

16 GB1

15 GA1

♦ 4.75V to 5.25V Single-Supply Operation

♦ Temperature Range: -40°C to +105°C

♦ 28-Pin TSSOP Package

A1 10

GND_S 11

SVML 12

SVMH 13

Ordering Information

PART

TEMP RANGE

-40°C to +105°C

PIN-PACKAGE

28 TSSOP

DS3882E+C

DS3882E+T&R/C

28 TSSOP

+Denotes a lead(Pb)-free/RoHS-compliant package.

T&R = Tape and reel.

TSSOP

Typical Operating Circuit appears at end of data sheet.

______________________________________________ Maxim Integrated Products

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,

or visit Maxim’s website at www.maxim-ic.com.

12 3 4 5 6 7...31

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与DS3882_10相关器件

型号	品牌	获取价格	描述	数据表
DS3882E	MAXIM	获取价格	Dual-Channel Automotive CCFL Controller
DS3882E+	ROCHESTER	获取价格	FLUORESCENT LIGHT CONTROLLER, 100 kHz SWITCHING FREQ-MAX, PDSO28, 0.173 INCH, LEAD FREE, T
DS3882E+	MAXIM	获取价格	Fluorescent Light Controller, Voltage-mode, 100kHz Switching Freq-Max, PDSO28, 0.173 INCH,
DS3882E+C	MAXIM	获取价格	Fluorescent Light Controller, 100kHz Switching Freq-Max, PDSO28, 0.173 INCH, LEAD FREE, TS
DS3882E+T&R	MAXIM	获取价格	Fluorescent Light Controller, Voltage-mode, 100kHz Switching Freq-Max, PDSO28, 0.173 INCH,
DS3882E+T&R/C	MAXIM	获取价格	Fluorescent Light Controller, 100kHz Switching Freq-Max, PDSO28, 0.173 INCH, LEAD FREE, TS
DS3882ER	MAXIM	获取价格	Dual-Channel Automotive CCFL Controller
DS3882ET	MAXIM	获取价格	Dual-Channel Automotive CCFL Controller
DS3883	NSC	获取价格	BTL 9-Bit Data Transceiver
DS3883A	NSC	获取价格	BTL 9-Bit Data Transceiver

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