ADP8140 Series

4 Channel High Current LED Driver with Adaptable Power Control

Catalog

4 Channel High Current LED Driver with Adaptable Power Control

Part	Operating Temperature [Max]	Operating Temperature [Min]	Applications	Package / Case	Package / Case	Voltage - Supply (Max)	Current - Output / Channel	Voltage - Supply (Min) [Min]	Supplier Device Package	Mounting Type	Number of Outputs	Dimming	Type	Outputs and Type	Outputs and Type	Voltage - Input [Min]	Voltage - Input [Max]	Features	Utilized IC / Part	Voltage - Output	Supplied Contents
Analog Devices ADP8140ACPZ-2-R7	105 °C	-40 °C	Backlight Lighting	CSP	16-WFDFN Exposed Pad	30 V	500 mA	3 V	16-LFCSP-WD (4x4)	Surface Mount	4	Analog PWM	Linear
Analog Devices ADP8140ACPZ-1-R7	105 °C	-40 °C	Backlight Lighting	CSP	16-WFDFN Exposed Pad	30 V	500 mA	3 V	16-LFCSP-WD (4x4)	Surface Mount	4	Analog PWM	Linear
Analog Devices ADP8140CP-EVALZ							500 mA							4	Non-Isolated Outputs	3 V	30 V	Dimmable	ADP8140	3 V	Board(s)
Analog Devices ADP8140EB-EVALZ							500 mA							4	Non-Isolated Outputs	3 V	30 V	Dimmable	ADP8140	3 V	Board(s)

Catalog

4 Channel High Current LED Driver with Adaptable Power Control

Key Features

• Highly integrated feature set for a high brightness LED driver solution with minimal external components

• 4 current sink channels with an adjustable current from

• 125 μA to 500 mA

• Analog and pulse-width modulation (PWM) dimming inputs

• Analog and PWM LED current outputs

• 2% (maximum) matching between LED channels

• 5% (maximum) LED current accuracy

• Operates from VINof 3 V to 30 V; higher voltages easily accomplished with an external Zener diode

• Operates with LED anode supply voltages up to 100 V dc

• Feedback output controls external power source for optimal efficiency and safety

• Multiple ADP8140 IC operation in parallel to control one power supply

• Integrated error amplifier for secondary side control of isolated power supplies

• Easy connection of a temperature thermistor or light sensor

• Provides robust protection of the entire systemPower supply overvoltage protectionLED overtemperature protectionLED short-circuit protectionLED open-circuit protectionIC overtemperature protectionShorted ISET protectionOpen ISET and EN protection

• Power supply overvoltage protection

• LED overtemperature protection

• LED short-circuit protection

• LED open-circuit protection

• IC overtemperature protection

• Shorted ISET protection

• Open ISET and EN protection

• Standby mode for low current consumption

• Fault indicator output

• Small, thermally enhanced, LFCSP package (4 mm × 4 mm)

Description

The ADP8140 provides high current control of up to four LED drivers. Each driver can sink up to 500 mA. The sink current is programmed for all four drivers with one external resistor.The device features a feedback output that controls an external power supply for optimal efficiency. The ADP8140 also protects the LEDs, power supply, and itself against thermal events, short circuits, overvoltages, and LED open circuits. Multiple ADP8140 ICs are easily connected in parallel to drive additional LED strings or higher current LEDs. The ADP8140 is available in a small, thermally enhanced, lead frame chip scale package (LFCSP).ApplicationsHigh brightness LED lightingLarge format LED backlighting