ADP1653ACPZ-R7 Integrated Circuits (ICs)

Voltage - Output:	--
Base Part Number:	ADP1653
Supplier Device Package:	16-LFCSP-VQ (3x3)
Package / Case:	16-VFQFN Exposed Pad, CSP
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C (TA)
Applications:	Camera Flash
Dimming:	I²C
Frequency:	1.2MHz
Current - Output / Channel:	500mA (Flash)
Series:	--
Voltage - Supply (Max):	5.5V
Voltage - Supply (Min):	3V
Number of Outputs:	1
Internal Switch(s):	Yes
Topology:	Step-Up (Boost)
Type:	DC DC Regulator
Part Status:	Discontinued at Digi-Key
Packaging:	Cut Tape (CT)

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Introduction

ADP1653ACPZ-R7 is a high efficiency, ultra-low power, low voltage linear current source developed by Analog Devices. This device is an ideal choice for driving LEDs in DIY or commercial applications, because of its wide output current range, high accuracy and good efficiency. This article will focus on the application fields and working principles of the ADP1653ACPZ-R7 LED voltage driver.

Application Fields

The ADP1653ACPZ-R7 LED driver is a versatile driver suitable for a range of LED driving applications, including automotive, communications, industrial, and consumer applications. Some typical applications include LED backlighting, LED lighting, LED signage, street lighting, and LED decorative lighting.

Automotive Application

In automotive applications, the ADP1653ACPZ-R7 LED driver is suitable for applications such as instrument clusters, HUDs, accent lighting, decorative lighting, and turn signals. The driver is designed to be highly efficient and deliver an accurately regulated output current over wide input and output voltage ranges.

Communications Application

In communications applications, the ADP1653ACPZ-R7 can be used for powering LEDs for optical transceivers and UBS transmitters. The driver can be driven from a single-cell Li-ion battery, allowing designers to reduce their system power budget from up to 5W down to 1W or less.

Industrial Applications

The ADP1653ACPZ-R7 driver is suitable for a number of industrial applications, including industrial lighting, thermal management systems, machinery alarms, and alert systems. The device supports wide input and output voltage ranges, making it ideal for driving LEDs in high-voltage and low-voltage industrial environments.

Consumer Applications

The ADP1653ACPZ-R7 driver is suitable for use in consumer devices and applications, including digital picture frames, portable projectors, and LED TVs. The driver is reliable and efficient, and can deliver a wide range of output current with excellent accuracy.

Working Principle

The ADP1653ACPZ-R7 LED driver is based on a linear current source topology. The driver consists of two stages: a voltage regulation stage, and a current regulation stage. The voltage regulation stage consists of a low dropout (LDO) regulator and a power MOSFET switch. The LDO regulates the input voltage to the desired output voltage, and the MOSFET switch is used to regulate the current.The current regulation stage consists of a precision current reference, and a second MOSFET switch. The reference sets the output current limit, and the MOSFET switch is used to regulate the current. The output current is regulated to match the reference voltage by adjusting the duty cycle of the MOSFET switch.The ADP1653ACPZ-R7 is a high efficiency, low voltage LED driver that is suitable for a wide variety of LED driving applications. It is capable of regulating an output current over a wide range of input and output voltages, and is designed to reduce system power budget. The driver is reliable and efficient, and offers excellent performance and accuracy.

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