Various ICs for mobile

DW8780

Triple Output DC/DC for AMOLED Display

DW8780 is DC-DC converter with triple synchronous output (OUTP, OUTN and AVDD) for powering AMOLED display. The device integrates two boost converters for OUTP, AVDD and an inverting buck boost converter for OUTN which are suitable for battery operated products. The digital control pin CTRL allows programming the OUTP, OUTN and AVDD voltage in digital steps. DW8780 uses new technologies for high performance line and load regulation.

These functions are is required to prevent flicker noise of AMOLED display by input voltage drop and recovery during transmit periods in mobile phones.

Applications

• AMOLED display for mobile device
• Smart phone
• Small size table
• Activematrix OLED Display ≤ 8

Features

• Operating voltage: 2.8V to 4.4V
• 0.8% accuracy OUTP
• Adjustable output voltage by digital interface OUTP : 4.4V to 5.0V with 0.1V step (default: 4.6V) OUTN : -6.4V to -1.4V with 0.1V step (default: -5.4V) AVDD : 5.0V to 8.0V with 0.1V step (default: 5.8V)
• Continuous output current
• OUTP/OUTN : min. 300mA
• AVDD : min. 80mA
• Short circuit protection
• Thermal Shutdown

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DW8780X

Triple Output DC/DC for AMOLED Display.

DW8780X is DC-DC converter with triple synchronous output (OUTP, OUTN and AVDD) for powering AMOLED display. The device integrates two boost converters for OUTP, AVDD and an inverting buck boost converter for OUTN which are suitable for battery operated products. The digital control pin CTRL allows programming the OUTP, OUTN and AVDD voltage in digital steps. DW8780X uses new technologies for high performance line and load regulation.

These functions are is required to prevent flicker noise of AMOLED display by input voltage drop and recovery during transmit periods in mobile phones.

Applications

• AMOLED display for mobile device
• Smart phone
• Small size table
• Activematrix OLED Display ≤ 8

Features

• Operating voltage: 2.9V to 4.5V
• 0.5% accuracy OUTP
• Adjustable output voltage by digital interface OUTP : 4.4V to 5.0V with 0.1V step (default: 4.6V) OUTN : -6.4V to -1.4V with 0.1V step (default: -5.4V) AVDD : 5.0V to 8.0V with 0.1V step (default: 5.8V)
• Continuous output current
• OUTP/OUTN : min. 300mA
• AVDD : min. 80mA
• Short circuit protection
• Thermal Shutdown

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DW8781

Triple Output DC/DC for AMOLED Display

DW8781 is DC-DC converter with triple synchronous output (OUTP, OUTN and AVDD) for powering AMOLED display. The device integrates two boost converters for OUTP, AVDD and an inverting buck boost converter for OUTN which are suitable for battery operated products. The digital control pin CTRL allows programming the OUTP, OUTN and AVDD voltage in digital steps.

DW8781 uses new technologies for high performance line and load regulation. These functions are required to prevent flicker noise of AMOLED display by input voltage drop and recovery during transmit periods in mobile phones.

Applications

• AMOLED display for mobile device
• Smart phone
• Small size table
• Activematrix OLED Display ≤ 8

Features

• Operating voltage: 2.9V to 4.5V
• 0.8% accuracy OUTP
• Adjustable output voltage by digital interface OUTP : 4.6V to 5.2V with 0.1V Step (Default: 4.6V) OUTN : -6.4V to -1.4V with 0.1V Step (Default: -4.0V) AVDD : 5.0V to 7.7V with 0.1V Step (Default: 5.8V)
• Continuous output current
• OUTP/OUTN : min. 360mA
• AVDD : min.100mA
• Short circuit protection
• Thermal Shutdown

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DW8782

Triple Output DC/DC for AMOLED Display

DW8782 is DC-DC converter with triple synchronous output (OUTP, OUTN and AVDD) for powering AMOLED display. The device integrates two boost converters for OUTP, AVDD and an inverting buck boost converter for OUTN which are suitable for battery operated products. The digital control pin CTRL allows programming the OUTP, OUTN and AVDD voltage in digital steps.

DW8782 uses new technologies for high performance line and load regulation. These functions are required to prevent flicker noise of AMOLED display by input voltage drop and recovery during transmit periods in mobile phones.

Applications

• AMOLED display for mobile device
• Smart phone
• Small size table
• Activematrix OLED Display ≤ 8

Features

• Operating voltage: 2.9V to 4.5V
• 0.8% accuracy OUTP
• Adjustable output voltage by digital interface OUTP : 4.6V to 5.2V with 0.1V Step (Default: 4.6V) OUTN : -6.4V to -1.4V with 0.1V Step (Default: -4.0V) AVDD : 5.0V to 7.7V with 0.1V Step (Default: 5.8V)
• Continuous output current
• OUTP/OUTN : min. 360mA
• AVDD : min.100mA
• Short circuit protection
• Thermal Shutdown

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DW8735

0.4W DC/DC for AMOLED Display

DW8735 is a high frequency and efficiency DC-DC converter with an integrated power switch capable of providing an output voltage up to 10V. It also offers 1-wire control function to change the output voltage in digital steps. It uses new technologies for high performance line and load regulation.

These enable to prevent flicker noise of AMOLED display by input voltage drop and recovery during transmit periods in mobile applications./p>

Applications

• AMOLED display for mobile device
• Wearable device
• Heathcare device

Features

• Step up synchronous boost converter
• Operating voltage : 2.5V ~ 4.8V
• 1.5MHz switching frequency.
• High performance line transient regulation
• Adjustable output voltage by 1-wire control : 46 steps, 100mV
• Output voltage : 5.5V ~ 10V with 0.1V step (Default : 8.0V)
• Minimum 40ma continuous output current
• Over voltage protection
• Short circuit protection
• DLP / auto discharge
• Thermal Shutdown

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DW8738

Triple Output DC/DC for AMOLED Display

DW8738 device is a highaccuracy display power supply solution. The device generates two positive voltage supply rail and one voltagereference. The device is comprised of the synchronous-boost converters which generate the panel power and the analog power.

The dualpurpose enable and programming pins (EN1, EN2 and EN3) allow the enabling and disabling of each converter and voltage reference, the selection of active discharge on or discharge off option, as well as the programming of each output voltage in 100mV steps.

Applications

• AMOLED display for mobile device
• Wearable device
• Heathcare device

Features

• Operating voltage: 2.9V to 4.5V
• Two programmable boost-converters and one voltage-reference.
• Adjustable output voltage by digital interface VOUT1=6V to 10V, with 0.1V Step (Default: 8.0V) VOUT2=5V to 6V, with 0.1V Step (Default: 5.5V) VOUT3=0.2V to 2.5V, with 0.1V Step (Default: 1.0V)
• Continuous output current: VOUT1 : min.360mA, VOUT2 : min.100mA, VOUT3 : ±25mA
• 1% output voltage accuracy
• Over voltage protection
• Short circuit protection
• Outputs actively discharge during power down
• Thermal Shutdown

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DW8755A

LCD Bias for LCD Display

W8755A is a DC-DC converter with dual synchronous output, which is a unique and highly integrated device.It continuously supports maximum 100mA output current. It operates in thefixed switching frequency of 540KHz. Its various functions protect abnormal operation. It offers internal softstart and Thermal Shutdown functions. It also has an anti-ringing circuit that can detect the output ringing noise

Applications

• LCD panel power supply
• Smartphone TFT-LCD
• Tablet TFT-LCD
• General dual power supply application

Features

• Synchronous boost converter and buck-boost converter
• Operating voltage : 2.7V ~ 5.3V
• Up to 88% efficiency
• Fixed 540KHz switching frequency
• Output voltage variable by 1-wire
• Positive Output: 4.6V ~ 6.0 V (0.1V Step)
• Negative Output: -4.6V ~ -6.0V (0.1V Step)
• Up to 100mA continuous current @ 3.7V
• Built in anti-ringing, short protection and Thermal Shutdown circuit

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DW8769L

Low IQ LCD Bias for LCD Display

DW8769L, with low IQ (0.55mA), is a power supply IC to support general positive/negative driven LCD. It is integrated with a boost regulator, LDO and charge pump to generate dual output voltages. The device uses a single inductor scheme in order to provide smaller sizeas well as high efficiency. With its input voltage range from 2.5V to 5.5V, it is optimized for products powered by singlecell batteries and output currents min. 80mA. DW8769L offers low quiescent current, making it well suited for application, which needs for longer battery life.

Applications

• LCD panel power supply
• Smartphone TFT-LCD
• Tablet TFT-LCD
• General dual power supply application

Features

• Single inductor dual output regulator
• Over 85% efficiency at IOUT> 10mA
• Low quiescent current: 0.55mA (Typ.)
• Driving current: Min. 80mA @ 2.9V
• Programmable output voltages
• Positive output voltage range: 4.0V to 6.0V (0.1V step)
• Negative output voltage range: -6.0V to -4.0V (0.1V step)
• Over current protection
• Thermal Shutdown
• Under voltage lockout
• GPIO & I2C interface

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DW8767

3-Combo IC(LCD Bias + 2CH Backlight + 1.5A Flash Driver) Single Chip Backlight with LCM Power and 1.5A LED Flash Driver

DW8767 is a high-efficiency two-string power source, which provides the power for LED strings for display backlight and camera flash along with the bias power for LCD module into one device. The device has the safety features required for LED drivers with up to 90% efficiency and bias positive/ negative power rails achieving 1.5% accuracy. Capable of driving up to 20 backlight LEDs, the device is ideal for small to medium-size displays.

1.5A constant current LED driver powered by a synchronous boost converter can be used for flash applications. The high side flash current source allows for grounded cathode LED operation. 30.

Applications

• LCD panel power supply
• Smartphone TFT-LCD
• Tablet TFT-LCD
• General dual power supply application

Features

• Drives two string of typically 10 LEDs in series Backlight boost with 36V maximum output voltage 25mA maximum output current
• Backlight efficiency up to 90%
• 11-bit exponential or linear dimming
• PWM input for content adjustable brightness control
• I2C programmable output Voltages Positive LCD bias 4.0V to 6.0V (50mV step) Negative LCD bias -4.0V to -6.0V (50mV step)
• Driving current : 80mA info@bestmadeinkorea.com
• 1.5A flash LED boost with up to 85% efficiency
• 30-ball WLCSP Package

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DW8832

High Efficiency 3 String White LED Driver

DW8832 is a high-efficiency 3-string power supply IC, which provides the voltage for LED strings for display backlight. DW8832's 11-bit LED driver provides high-performance backlight dimming for up to 3 series LED strings. The full-scale LED current ranges from 5mA to 30mA. An adaptive current regulation allows for changing LED voltages in each string while maintaining current regulation. LED voltage operates over 2.7V to 5.0V input voltage range.

DW8832 provides an additional feature, a Pulse Width Modulation (PWM) control input for Content Adjustable Backlight Control(CABC), which can be used to control any high voltage current sink.

Applications

• Small LCD backlighting
• Car navigation LCD backlighting
• Smart phone

Features

• Drives 3 parallel high-voltage LED strings for display lighting
• High-voltage strings capable of up to 40V output voltage and up to 90% efficiency
• Up to 30mA per current sink
• 11-bit exponential or linear dimming resolution
• External PWM input for Content Adjustable Backlight Control(CABC)
• I2C compatible interface
• Adaptive boost output to LED voltages
• Selectable 500kHz and 1MHz switching frequency
• 4 configurable over-voltage protection thresholds (16V, 24V, 32V and 40V)
• Over-current protection
• Thermal Shutdown

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DW8742

2MHz Ultra Small Step Down Converter

DW8742 device is a high frequency synchronous step down DC-DC converter optimized for battery powered portable applications. It supports up to 500mA output current and allows the use of cost efficient inductors and capacitors. With a wide input voltage range of 2.35V to 5.0V, the device supports applications powered by Li-Ion batteries with extended voltage range.

It works in a fixed 2MHz switching frequency and in PWM Mode operation over the entire load range. It prevents abnormal operation to protect the system. It offers internal soft-start and Thermal Shutdown functions. It consumes only 1μA when EN pin disables. It is integrated an auto discharge circuit.

Applications

• Portable Media
• Smart phone
• Tablet

Features

• Vin range from 2.7V to 5.0V
• Step down DC-DC converter
• 2MHz switching frequency
• Up to 92% efficiency
• Output peak current up to 600mA
• Normal PWM mode for the entire load range
• Soft Start with. 90us start up time
• Start-up current run-away protection
• Built in Auto discharge function
• Built in Short Current protection
• Thermal Shutdown