AK7864

更新时间： 2024-02-21 07:31:15

品牌	Logo	应用领域
AKM		显示驱动器驱动程序和接口接口集成电路泵
页数	文件大小	规格书
12页	212K
描述
3 channel LED driver with Charge Pump

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技术参数
数据手册

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AK7864 技术参数

生命周期：	Obsolete	零件包装代码：	QFN
包装说明：	HVQCCN,	针数：	16
Reach Compliance Code：	unknown	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	5.84
Is Samacsys：	N	接口集成电路类型：	LED DISPLAY DRIVER
JESD-30 代码：	S-XQCC-N16	长度：	3 mm
复用显示功能：	NO	功能数量：	1
区段数：	3	端子数量：	16
最高工作温度：	70 °C	最低工作温度：
封装主体材料：	UNSPECIFIED	封装代码：	HVQCCN
封装形状：	SQUARE	封装形式：	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
认证状态：	Not Qualified	座面最大高度：	0.75 mm
最大供电电压：	3.465 V	最小供电电压：	3.135 V
标称供电电压：	3.3 V	表面贴装：	YES
温度等级：	COMMERCIAL	端子形式：	NO LEAD
端子节距：	0.5 mm	端子位置：	QUAD
宽度：	3 mm	Base Number Matches：	1

AK7864 数据手册

[AK7864]

AK7864

3 channel LED driver with Charge Pump

Device Outline

This product is include the charge pump power supply and include the 3 channel LED driver who

drives the LED of the anode common in the constant current . The current to pass for each channel

can be adjusted by the external resistance and the register setting. Also, it has the control pins which

turn on or off the current. It is the best for the LED drive for the CIS sensor.

Features

■ Operation Voltage

3.3V±5%

■ Operating Temperature Range

■ LED driver current

0 ~ 70℃

RED: 66mA (Adjustment external resister:22 ~ 66mA)

GREEN: 66mA (Same as above, each channel is spec in

absolute value.)

BLUE: 66mA (Same as above, each channel is spec in

absolute value.)

Usable Vf MAX range of the LED is 4.8V. The resistance for

the current regulation is usable in 1/16W -type.

▪ 50% setting is an upper bound when 3ch becoming

turning on at the same time.

▪ 3ch independent ON/OFF.

▪ Current setting in eight steps

When the external resistance value becomes the

assumption outside, it has the protection circuit which

doesn't make the electric current which flows through the

LED equal to or more than 150mA（-30%～+45%）

±9.1%（by ideal resistance）

■ Current Accuracy

■ LED Current rise / fall time

■ Charge Pump pressor circuit

■ Package

10μs (typ.) (10% ~ 90%)

Generate the necessary voltage for the LED （Vf max 4.8V）

16pinQFN 3mm, 0.75mm thickness with radiation TAB in

Solderside

■ Power

VDD 3.135 ~ 3.465V

■ Application

A light source driver for CIS module of MFP

MS1152 - E - 01

2010/09

12 3 4 5 6 7...12

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