Datasheet > ADP8863ACPZ-R7

ADP8863ACPZ-R7

更新时间： 2024-02-14 11:03:06

品牌	Logo	应用领域
亚德诺 - ADI		驱动器泵
页数	文件大小	规格书
48页	760K
描述
Charge Pump,7-Channel Fun Lighting LED Driver

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ADP8863ACPZ-R7 技术参数

是否无铅：	含铅	是否Rohs认证：	符合
生命周期：	Active	零件包装代码：	QFN
包装说明：	LFCSP-20	针数：	20
Reach Compliance Code：	compliant	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	2.28
Samacsys Description：	1.5 A LED Flash Driver with I2C-Compatible Interface	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：	1	复用显示功能：	NO
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	封装等效代码：	LCC20,.16SQ,20
封装形状：	SQUARE	封装形式：	CHIP CARRIER
峰值回流温度（摄氏度）：	260	电源：	3.6 V
认证状态：	Not Qualified	座面最大高度：	0.8 mm
子类别：	Display Drivers	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：	Matte 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

ADP8863ACPZ-R7 数据手册

Charge Pump, 7-Channel

Fun Lighting LED Driver

ADP8863

TYPICAL OPERATING CIRCUIT

FEATURES

Automated blinking and funlight timing for each LED driver

16 programmable fade in and fade out times

0.1 sec to 5.5 sec

Selectable linear, square, or cubic fade rates

7 independent and programmable LED drivers

7 drivers capable of 30 mA (maximum)

1 driver also capable of 60 mA (maximum)

Programmable maximum current limit (128 levels)

Separate and independent controls for backlight LEDs

Backlight fade override

Up to two built-in comparator inputs with programmable

modes for ambient light sensing

ALS

PHOTO

SENSOR

D7 CMP_IN

0.1µF

VIN

1µF

VOUT

VDDIO

OUT

1µF

C1+

ADP8863

nRST

nINT

SDA

SCL

1µF

C1–

C2+

1µF

C2–

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

2× for maximum efficiency

GND1

GND2

Standby mode for <1 μA current consumption

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

Figure 1.

Small lead frame chip scale package (LFCSP)

APPLICATIONS

LED indication

Funlight indicator lighting

Keypad backlighting

RGB LED color generation and mixing

General backlighting of small format displays

GENERAL DESCRIPTION

The ADP8863 combines a powerful charge pump driver with

advanced autonomous LED lighting features. It allows as

many as seven LEDs to be independently driven up to 30 mA

(maximum). The seventh LED can also be driven to 60 mA

(maximum). All LEDs are programmable for maximum current

and fade in/fade out times via the I²C interface.

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. The device includes a variety of safety features including

short-circuit, overvoltage, and overtemperature protection.

These features allow 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.

Additionally, automated blinking routines can be independently

programmed and enabled for all seven LED channels. These

LEDs can also be combined into groups to reduce the processor

instructions.

The ADP8863 is available in a compact lead frame chip scale

package (LFCSP).

Rev. 0

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

rights of third parties that may result from its 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 and registeredtrademarks arethe property of their respective owners.

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

Tel: 781.329.4700

Fax: 781.461.3113

www.analog.com

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