Datasheet > ADP8861ACPZ-R7

ADP8861ACPZ-R7

更新时间： 2024-02-23 14:13:45

品牌	Logo	应用领域
亚德诺 - ADI		驱动接口集成电路
页数	文件大小	规格书
41页	732K
描述
Charge Pump, 7-Channel Smart LED Driver with I<sup>2</sup>C Interface

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ADP8861ACPZ-R7 技术参数

是否无铅：	含铅	是否Rohs认证：	符合
生命周期：	Active	包装说明：	HVQCCN,
针数：	20	Reach Compliance Code：	compliant
ECCN代码：	EAR99	HTS代码：	8542.39.00.01
风险等级：	1.62	数据输入模式：	SERIAL
接口集成电路类型：	LED DISPLAY DRIVER	JESD-30 代码：	S-XQCC-N20
JESD-609代码：	e3	长度：	4 mm
湿度敏感等级：	3	功能数量：	1
区段数：	7	端子数量：	20
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	座面最大高度：	0.8 mm
最大供电电压：	5.5 V	最小供电电压：	2.5 V
标称供电电压：	3.6 V	表面贴装：	YES
温度等级：	INDUSTRIAL	端子面层：	Tin (Sn)
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：	30
宽度：	4 mm	最小 fmax：	0.4 MHz
Base Number Matches：	1

ADP8861ACPZ-R7 数据手册

Charge Pump, 7-Channel

Smart LED Driver with I²C Interface

Data Sheet

ADP8861

FEATURES

TYPICAL OPERATING CIRCUIT

Charge pump with automatic gain selection of 1×, 1.5×, and 2×

for maximum efficiency

7 independent, programmable LED drivers

7 drivers capable of 30 mA (typical)

VIN

1 driver also capable of 60 mA (typical)

Programmable maximum current limit (128 levels)

Standby mode for <1 μA current consumption

16 programmable fade in and fade out times

0.1 sec to 5.5 sec

1µF

VOUT

OUT

VDDIO

1µF

nRST

SDA

SCL

C1+

C1–

C2+

C2–

VDDIO

Choose from linear, square, or cubic rates

Fading override

1µF

ADP8861

I²C-compatible interface for all programming

Dedicated reset pin and built-in power-on reset (POR)

Short-circuit, overvoltage, and overtemperature protection

Internal soft start to limit inrush currents

Input-to-output isolation during faults or shutdown

Operation down to V_IN= 2.5 V with undervoltage lockout

(UVLO) at V_IN= 2.0 V

1µF

nINT

GND1

GND2

Figure 1.

Available in a small 20-ball, 2.15 mm × 2.36 mm × 0.6 mm

WLCSP or a 20-lead, 4 mm × 4 mm × 0.75 mm LFCSP

APPLICATIONS

Mobile display backlighting

Mobile phone keypad backlighting

Dual RGB backlighting

LED indication

General backlighting of small format displays

GENERAL DESCRIPTION

The ADP8861 provides a powerful charge pump driver with

independent control of up to seven LEDs. These seven LEDs

can be independently driven up to 30 mA (typical). The seventh

LED can also be driven to 60 mA (typical). All LEDs are pro-

grammable for maximum current and fade in/out times via

the I²C interface. These LEDs can also be combined into groups to

reduce the processor instructions during fade in/out.

This entire configuration is driven by a two-capacitor charge

pump with gains of 1×, 1.5×, and 2×. The charge pump is

capable of driving a maximum I_OUTof 240 mA from a supply

of 2.5 V to 5.5 V. A full suite of safety features, including short-

circuit, overvoltage, and overtemperature protection, allows

easy implementation of a safe and robust design. Additionally,

input inrush currents are limited via an integrated soft start

combined with controlled input-to-output isolation.

Rev. C

Document Feedback

Information furnished by Analog Devices is believed to be accurate and reliable. However, no

responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other

rightsof third parties that may result fromits use. Specifications subject to change without notice. No

license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Trademarks andregisteredtrademarks are the property of their respective owners.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Technical Support

www.analog.com

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