P/N + Описание + Поиск контента

General Description
The RT9269 is a compact, high efficient LED driver with high flexibility of application configurations in charge pump mode or in boost rectifier mode, delivering Tens of mA constant output current for driving 1~4 white LED’s.

Features
• 0.25V Low Reference Voltage
• 17µA Quiescent (Switch-off) Supply Current
• Zero Shutdown Mode Supply Current
• 85% Efficiency
• 500kHz Fixed Switching Rate
• Tuning LED brightness with CE pin ON/OFF Duty
• Small SOT-26 Package

Applications
• LED Module
• Hand Held Panel
• Compact Back Light Module
• Small Battery Charger
• Constant Current Source

General Description
The RT9269 is a compact, high efficient LED driver with high flexibility of application configurations in charge pump mode or in boost rectifier mode, delivering Tens of mA constant output current for driving 1~4 white LEDs.

Features
• 0.25V Low Reference Voltage
• 17μA Quiescent (Switch-off) Supply Current
• Zero Shutdown Mode Supply Current
• 85% Efficiency
• 500kHz Fixed Switching Rate
• Tuning LED brightness with EN Pin ON/OFF Duty
• Small SOT-23-6 Package
• RoHS Compliant and 100% Lead (Pb)-Free

Applications
• LED Module
• Hand Held Panel
• Compact Back Light Module
• Small Battery Charger
• Constant Current Source

DESCRIPTION
LT®3466-1 is a dual switching regulator that combines a
white LED driver and a boost converter in a low profile, small footprint (3mm × 3mm × 0.75mm) DFN Package. The LED driver can be configured to drive up to 10 White LEDs in series and the boost converter can be used for generating the LCD bias voltages or driving a secondary OLED display. Series connection of the LEDs provides identical LED currents resulting in uniform brightness and eliminating the need for ballast resistors and expensive factory calibration.

FEATURES
■ Drives Up to 10 White LEDs from a 3.6V Supply
■ Two Independent Step-Up DC/DC Converters
■ Independent Dimming and Shutdown Control of the Outputs
■ ±1.5% Output Voltage Accuracy (Boost Converter)
■ ±4% LED Current Programming Accuracy
■ Internal Schottky Diodes
■ Internal Soft-Start Eliminates Inrush Current
■ Output Overvoltage Protection (39.5V Max VOUT)
■ Fixed Frequency Operation Up to 2MHz
■ 83% Efficiency Driving 8 White LEDs at 15mA from a 3.6V Supply
■ Wide Input Voltage Range: 2.7V to 24V
■ Tiny (3mm × 3mm) 10-Lead DFN Package

APPLICATIONS
■ White LED and OLED Displays
■ Digital Cameras, Sub-Notebook PCs
■ PDAs, Handheld Computers
■ TFT - LCD Bias Supply
■ Automotive

Description
This evaluation board represents a cost effective solution to drive an array of high brightness LEDs, using the LED driver STP16CP05. This driver provides the same constant current for each of its output channels, thus there is no difference in brightness and color between the LEDs.

Features
■ 32 LED matrix driven by STP16CP05
■ LED current regulation
■ Adjustable brightness
■ Animated text capability
■ Adjustable blinking speed; several blinking modes
■ Input voltage ranges from 5 V to 35 V input voltage range
■ DC-DC converter for high efficiency

General Description
The AL5812 is an adjustable Linear LED driver offering excellent temperature stability and output handling capability. The AL5812 simplifies the design of linear and isolated or non-isolated LED drivers by setting the LED current with standard value resistors.Key

Features
• Low Reference Voltage (VRSET=0.5V)
• -40˚C to 125˚C Temperature Range
• ±3% LED Current Tolerance
• MSOP-8EP and U-DFN3030-6 Packages

Applications
• Linear LED driver
• Isolated Offline LED Converters
• LED Signs
• Instrumentation Illumination

General Description
The AL5812 is an adjustable Linear LED driver offering excellent temperature stability and output handling capability. The AL5812 simplifies the design of linear and isolated or non-isolated LED drivers by setting the LED current with standard value resistors.

Key Features
• Low Reference Voltage (VRSET=0.5V)
• -40˚C to 125˚C Temperature Range
• ±3% LED Current Tolerance
• MSOP-8EP and U-DFN3030-6 Packages

Applications
• Linear LED driver
• Isolated Offline LED Converters
• LED Signs
• Instrumentation Illumination

General Description
The AL5811 is an adjustable Linear LED driver offering excellent temperature stability and output handling capability. The AL5811 simplifies the design of linear and isolated or non-isolated LED drivers by setting the LED current with standard value resistors.

Key Features
• Low Reference Voltage (VRSET=0.5V)
• -40˚C to 125˚C Temperature Range
• MSOP-8EP and U-DFN3030-6 Packages

Applications
• Linear LED driver
• Isolated Offline LED Converters
• LED Signs
• Instrumentation Illumination

General Description
The AL5811 is an adjustable Linear LED driver offering excellent temperature stability and output handling capability. The AL5811 simplifies the design of linear and isolated or non-isolated LED drivers by setting the LED current with standard value resistors.

Key Features
• Low Reference Voltage (VRSET=0.5V)
• -40˚C to 125˚C Temperature Range
• MSOP-8EP and U-DFN3030-6 Packages

Applications
• Linear LED driver
• Isolated Offline LED Converters
• LED Signs
• Instrumentation Illumination

Description

The BP2833A is a high precision buck constant current LED driver. The device operates in critical conduction mode and is suitable for 85Vac~265Vac universal input offline LED lighting.

Features

 Critical Conduction Mode Operation

 Internal 500V Power MOSFET

 No Auxiliary Winding

 Ultra Low Operating Current

 ±5% LED Output Current Accuracy

 LED Open Protection

 LED Short Protection

 Current Sensing Resistor Short Protection

 VCC Under Voltage Protection

 Thermal Regulation Function

 Available in SOP-8 Package

Applications

 LED Candle Light

 LED Bulb

 Other LED Lighting

GENERAL DESCRIPTION
The SM8205 is a current mode control wide-input voltage (8V to 48V) LED driver IC specifically designed to power one or multi-strings of high power LEDs. The 10V gate driver allow the use of standard level MOSFET. The low voltage 5.0V VCC is used to power the internal logic and also acts as a reference voltage to set the current level. An external resistor sets the adjustable switching frequency of the SM8205.

FEATURES
● Wide input operating voltage range from 8V to 48V
● Internal 2% reference voltage
● Integrated PWM dimming N-channel MOSFET driver
● Dimming ratio: 1000:1
● 100KHz to 1MHz programmable high-frequency operation
● Programmable slope compensation
● Input under-voltage protection
● LED short-circuit protection (SCP)
● LED open-voltage protection (OVP)
● Junction over-temperature shutdown protection
● drivers LEDs in Boost, Buck-Boost, SEPIC Topology
● Cycle-by-cycle current limit
● Soft start
● Providing SOP-16 Package

APPLICATIONS
● Single-string LED LCD backlighting
● High power LED drivers
● DC/DC Boost / Buck-Boost converter
● Automotive or Industrial