Datasheet > ADP8860ACBZ-R7

ADP8860ACBZ-R7

更新时间： 2024-11-29 19:57:19

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
53页	689K
描述
Charge Pump, 7-Channel Smart LED Driver with I<sup>2</sup>C Interface

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ADP8860ACBZ-R7 数据手册

Charge Pump, 7-Channel

Smart LED Driver with I²C Interface

ADP8860

FEATURES

TYPICAL OPERATING CIRCUIT

ALS

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

2× for maximum efficiency

Up to two built-in comparator inputs with programmable

modes for ambient light sensing

OPTIONAL

PHOTOSENSOR

OUT

PHOTOSENSOR

Outdoor, office, and dark modes for maximum backlight

power savings

7 independent and programmable LED drivers

6 drivers capable of 30 mA (typical)

0.1µF

D7 CMP_IN

D6/

CMP_IN2

1 driver capable of 60 mA (typical)

1µF

VDDIO

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

Choose from linear, square, or cubic rates

Fading override

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

OUT

1µF

nRST

SDA

SCL

C1+

C1–

C2+

C2–

VDDIO

1µF

ADP8860

1µF

nINT

GND1

GND2

Figure 1.

Small wafer level chip scale package (WLCSP) or lead frame

chip scale package (LFCSP)

APPLICATIONS

Mobile display backlighting

Mobile phone keypad backlighting

Dual RGB backlighting

LED indication

General backlighting of small format displays

The ADP8860 allows as many as six LEDs to be independently

driven up to 30 mA (typical). A seventh LED can be driven to

60 mA (typical). All LEDs are programmable for minimum/max-

imum 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.

GENERAL DESCRIPTION

Driving this entire configuration is a two-capacitor charge pump

with gains of 1×, 1.5×, and 2×. This setup 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. Addi-

tionally, input inrush currents are limited via an integrated soft

start combined with controlled input-to-output isolation.

The ADP8860 combines a programmable backlight LED charge

pump driver with automatic phototransistor control. This combi-

nation allows for significant power savings because it changes the

current intensity in office and dark ambient light conditions. By

performing this function automatically, it eliminates the need for

a processor to monitor the phototransistor.

The light intensity thresholds are fully programmable via the

I²C® interface. A second phototransistor input, with dedicated

comparators, improves the ambient light detection levels for

various user operating conditions.

The ADP8860 is available in two package types, either a compact

2 mm × 2.4 mm × 0.6 mm WLCSP (wafer level chip scale package)

or a small LFCSP (lead frame chip scale package).

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 are theproperty 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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与ADP8860ACBZ-R7相关器件

型号	品牌	获取价格	描述	数据表
ADP8860ACPZ-R7	ADI	获取价格	Charge Pump, 7-Channel Smart LED Driver with I<sup>2</sup>C Interface
ADP8860ACPZ-R7	ROCHESTER	获取价格	LED DISPLAY DRIVER, QCC20, 4 X 4 MM, ROHS COMPLIANT, MO-220-VGGD, WLCSP-20
ADP8861	ADI	获取价格	Charge Pump, 7-Channel Smart LED Driver with I2C Interface
ADP8861ACPZ-R7	ADI	获取价格	Charge Pump, 7-Channel Smart LED Driver with I<sup>2</sup>C Interface
ADP8861ACPZ-RL	ADI	获取价格	Charge Pump, 7-Channel Smart LED Driver with I2C Interface
ADP8861DBCB-EVALZ	ADI	获取价格	Charge Pump, 7-Channel Smart LED Driver with I2C Interface
ADP8863	ADI	获取价格	Charge Pump,7-Channel Fun Lighting LED Driver
ADP8863ACPZ-R7	ADI	获取价格	Charge Pump,7-Channel Fun Lighting LED Driver
ADP8863DBCP-EVALZ	ADI	获取价格	Charge Pump,7-Channel Fun Lighting LED Driver
ADP8866	ADI	获取价格	Charge Pump Driven 9-Channel LED Driver with Automated LED Lighting Effects

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