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MC34848EP

更新时间： 2024-11-08 19:48:55
品牌 Logo 应用领域
恩智浦 - NXP 驱动接口集成电路
页数 文件大小 规格书
38页 659K
描述
LED DISPLAY DRIVER, QCC48, 7 X 7 MM, 1 MM HEIGHT, 0.50 MM PITCH, LEAD FREE, MO-220VKKD-2, QFN-48

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MC34848EP 技术参数

是否Rohs认证： 符合生命周期：Obsolete
零件包装代码：QFN包装说明：HVQCCN, LCC48,.27SQ,20
针数：48Reach Compliance Code：unknown
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.74数据输入模式：SERIAL
接口集成电路类型：LED DISPLAY DRIVERJESD-30 代码：S-XQCC-N48
长度：7 mm湿度敏感等级：3
复用显示功能：NO功能数量：1
区段数：8端子数量：48
最高工作温度：85 °C最低工作温度：-40 °C
封装主体材料：UNSPECIFIED封装代码：HVQCCN
封装等效代码：LCC48,.27SQ,20封装形状：SQUARE
封装形式：CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE峰值回流温度（摄氏度）：260
电源：3.3,24 V认证状态：Not Qualified
座面最大高度：1 mm子类别：Display Drivers
最大供电电压：3.6 V最小供电电压：2.6 V
标称供电电压：3.3 V电源电压1-最大：14 V
电源电压1-分钟：6 V电源电压1-Nom：12 V
表面贴装：YES温度等级：INDUSTRIAL
端子形式：NO LEAD端子节距：0.5 mm
端子位置：QUAD处于峰值回流温度下的最长时间：40
宽度：7 mm最小 fmax：85 MHz
Base Number Matches：1

MC34848EP 数据手册

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Document Number: MC34848  
Rev. 1.0, 5/2010  
Freescale Semiconductor  
Advance Information  
8-Channel LED Driver with Differential  
Interface  
MC34848  
The 34848 is a high efficiency, 8-channel LED driver for use in LCD  
backlighting applications. It is designed to support up to 160 mA /  
channels in scan backlight mode, or 80 mA/channels in local dimming  
mode. Current reference is set using a single resistor to GND and LED  
current tolerance is accurate to ±1% channel-to-channel and IC-to-IC.  
The current can be programmed in both local dimming and scan modes.  
POWER MANAGEMENT IC  
Each channel has independent PWM control with 10-bit resolution,  
programmed with high speed differential interface. The frequency  
between ICs is synchronized and derived from Controller (LED Driver  
Controller) signals. When the SCAN pin is pulled high, it enables the  
Scan mode. In this mode, each of 8 channels is on for nominally 3/8 of  
the frame.  
EP SUFFIX (PB-FREE)  
98ARH99048A  
The integrated boost controller is used to generate the minimum  
output voltage required to keep all LEDs illuminated with the selected  
current, providing the highest efficiency possible. The integrated boost  
clock can be programmed from 200 kHz to 1.2 MHz.  
48-PIN QFN  
Features  
ORDERING INFORMATION  
Temperature  
• Drives 8 LED channels: ±1% current tolerance  
• Local dimming mode, scan mode (2/8, 3/8, 4/8, 5/8), test mode  
• Output voltage up to 45 V supporting up to 12 LEDs  
• Auto drive voltage (VOUT) selection: Minimum feedback voltage  
500 mV for low power  
Device  
Package  
Range (T )  
A
MC34848EP  
-40°C to 85°C  
48 QFN EP  
• Differential Interface: Initial setup (LED current, fPWM, OVP, etc.), PWM data in normal operation  
• Integrated PLL for synchronization: 177 to 200 Hz in 1.0 Hz steps  
• 10-bit PWM control per channel: Dimming ratio: >1000:1, turn-on time: <200 ns  
• Pb-free packaging designated by suffix code EP”  
24 V  
3.0 V  
DVDD  
12 V  
PVCC  
CPLL  
VDC  
GD  
OUT_SW  
CS  
COMP  
VLOGIC  
OVP  
SLEW  
AGND  
DGND  
PGND  
SCAN  
SCAN  
SHUT_B  
SHUT_B  
MC34848  
SCAN-RESET  
SETUP  
SCAN-RESET  
SETUP  
ISET  
LS  
LS  
CTRL  
CH1  
CH2  
CH3  
CH4  
CH5  
CH6  
CH7  
CH8  
CLK(+),(-)  
DATA(+).(-)  
DIO1  
CLK  
DATA  
STH  
Figure 1. 34848 Simplified Application Diagram  
* This document contains certain information on a new product.  
Specifications and information herein are subject to change without notice.  
© Freescale Semiconductor, Inc., 2010. All rights reserved.  
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