ISL97687IRTZ-TS2705 4-Channel LED Driver with Phase Shift Control and 10-Bit Dimming Resolution

Description

The ISL97687 is a PWM controlled LED driver that supports four channels of LED current, for Monitor and TV LCD backlight applications. It is capable of driving 160mA per channel from a 9V to 32V input supply, with current sources rated up to 75V absolute maximum. The ISL97687's current sources achieve typical current matching to ±1%, while dynamically maintaining the minimum required VOUT necessary for regulation. This adaptive scheme compensates for the non-uniformity of forward voltage variance in the LED strings. The ISL97687 can decode both an incoming PWM signal and an analog input voltage, for DC-to-PWM dimming applications. Modes include direct PWM and several modes where the PWM frequency is synthesized on chip at 10-bit resolution. This can be either free running, or synchronized with the frame rate to give both a frequency and a phase lock, minimizing panel to panel variation and display flicker. Phase shift is supported, reducing flicker and audio noise, as is multiplication of the incoming decoded analog and PWM values. The ISL97687 has an advanced dynamic headroom control function that monitors the highest LED forward voltage string, and regulates the output to the correct level to minimize power loss. This proprietary regulation scheme also allows for extremely linear PWM dimming from 0. 02% to 100%. The LED current can also be switched between two current levels, giving support for 3D applications. The ISL97687 incorporates extensive protections of string open and short-circuit detections, OVP, and OTP.

Company Information

Shenzhen Wisdtech Technology Co., Ltd are a large-scale supplier specializing in famous semiconductor integrated circuits (ICS) from all over the world.

We have many years of sales management experience, professional supporting various electronic components, and has a large amount of stock for a long time.
It mainly Agent of CCTC Advanced Ceramic Capacitors
RICHTEK,SGMRICO ,distributes on AD,XILINX,ST,ALTERA,TI and all series ICs and Resistor ,inductor and moudles. The products are widely used in the field of portable electronic products. Based on technology and market-oriented, We have accumulated rich business experience and has formed a complete management system. At the same time, it has established good cooperative relations with manufacturers and agents in the United States, Europe, Japan, South Korea and Taiwan, and constantly improved service quality. Therefore, it has received strong support and high trust from the majority of users! The business has developed rapidly and has established long-term friendly cooperative relations with many traders and manufacturers all over the country. The company always adheres to the development concept and purpose of "quality first, reasonable price, quick delivery and service first". It is our duty to provide the most satisfactory service to the enterprise. Through a strong market service network system, we provide standardized, professional, diversified and all-round high-quality services to the enterprise.

Q1: Who are you?

A1: We are a large-scale supplier specializing in famous semiconductor integrated circuits (ICS) from all over the world

what product you can provide?

we have stock over 15 millions stock on AD,XILINX,ST,ALTERA,TI and all series ICs and Capacitor ,Resistor ,inductor and moudles. welcome to Bom List enquiry.

How do I pay for the order?

We accept wire transfer,western union,Pay Pal,Escrow (if you prefer other methods,please contact us)

Laneya
Telephone:+86-13420902155
E-mail:sales@wisdtech.com.cn
Wechat:laneyatao66
WhatsApp:+8613420902155
Skype:sales@wisdtech.com.cn