Lattice Technology Co., Ltd. announced that it has been able to supply LDS8866, LDS8865 and LDS8864 product samples. By using its patented PowerLite current regulator, Lattice's new range of LED driver-based products can achieve 95% of charge pump-based products. Performance. The non-voltage memory (NVM) on the chip allows the user to pre-set the highest current for each of the three sets of LEDs without the need for an external resistor. The LED current regulation can be controlled by a design engineer's easy-to-use PWM interface. This product line supports up to six LEDs for portable backlighting applications and up to 32 milliamps (mA) per circuit. Lattice develops analog and mixed-signal semiconductor devices that support mobile consumer electronics devices, including color display drivers, LED drivers, and audio ICs for portable consumer electronics.

At the beginning of this century, mobile phones have evolved from voice applications to comprehensive multimedia platforms. This shift has made a major breakthrough in the use of these communication tools. Five years ago, users almost exclusively used mobile phones for voice communication. Today, everyone can use mobile phones to exchange text messages, receive and compose emails, share photos, browse the Internet, shoot video clips, and even activate them from mobile phones. Integrated Global Positioning System. These applications are focused on the display screen of the phone, so the user is facing the screen for a longer time than using the phone to talk. In addition, the screen of the mobile phone is getting bigger and bigger, with higher resolution and the required power. The amount of power consumed by the screen is mostly used for LED lighting on the screen. Since LED driver chips (such as LDS8866, LDS8865 and LDS8864) control the power supply of LEDs, even in terms of performance, even if there is only a small increase, it is enough for mobile phones. The overall life of the battery brings great benefits.

Lattice's new line of charge pump LED drivers offers portable application designers a number of strengths. To extend battery life, the new series combines the advantages of a PowerLite current regulator with a 1.33x charge pump to increase performance to 95%. The ultra-low-voltage regulated PowerLite current regulator consumes only 50 millivolts (mV) of conversion internally, maintaining maximum performance for longer than other products. To improve system current matching, the device's highest LED current is factory-set by the built-in non-voltage memory (NVM). In addition, the PWM interface can be used for dynamic backlight brightness control. The components are packaged in tiny 16-pin TQFN packages (3 mm x 3 mm).

Introduction to LDS8866

The LDS8866 is a high-performance multi-mode boost mode fractional charge pump with an ultra-low voltage drop that can drive up to six LEDs. Includes a 1.33x boost mode fractional charge pump and an ultra low dropout PowerLite current regulator for up to 95% performance. 1.33 times mode does not require an additional external capacitor. The PWM1/PWM2 logic input gives the chip enable control and PWM mode LED brightness control. The highest LED current is set by the factory and can be adjusted from 0.5 mA to 32 mA. The boost mode charge pump supports multiple input voltages from 2.7 volts to 5.5 volts. The device is available in a 16-pin TQFN package (3 mm x 3 mm) with a height of only 0.8 mm.

Introduction to LDS8865

The LDS8865 is a high-performance multi-mode boost mode fractional charge pump with an ultra-low voltage drop that can drive up to six LEDs. Includes an ultra low dropout PowerLite current regulator for up to 93% efficiency. The PWM1/PWM2 logic input gives the chip enable control and PWM mode LED brightness control. The highest LED current is set by the factory and can be adjusted from 0.5 mA to 32 mA. The boost mode charge pump supports multiple input voltages from 2.7 volts to 5.5 volts. The device is available in a 16-pin TQFN package (3 mm x 3 mm) with a height of only 0.8 mm.

Introduction to LDS8864

The LDS8864 is a high-performance multi-mode boost mode fractional charge pump that combines an ultra-low voltage drop across up to six LEDs to boost performance to 90%. The PWM1/PWM2 logic input gives the chip enable control and PWM mode LED brightness control. The highest LED current is set by the factory and can be adjusted from 0.5 mA to 32 mA. The boost mode charge pump supports multiple input voltages from 2.7 volts to 5.5 volts. The device is available in a 16-pin TQFN package (3 mm x 3 mm) with a height of only 0.8 mm.


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