The ISL97682, ISL97683, ISL97684 are Intersils highly integrated 2-3-4-channel LED drivers that are suitable for medium size TFT-LCD backlights. These parts can drive multiple channels of LEDs from inputs as low as 4V to outputs of up to 45V. They can also operate from inputs as low as 3V to outputs of up to 26.5V in bootstrap configuration.
The ISL97682, ISL97683, ISL97684 feature optional channels phase shift control. This feature is used to minimize the input, output ripple characteristics and load transient, which help eliminate or reduce the video and audio noise interference from the backlight driver operation.
The ISL97682, ISL97683, ISL97684 offer 8-bit PWM dimming for systems that need frequency tuning flexibility. With the unique adaptive boost switching architecture, the ISL97682, ISL97683, ISL97684 also offer Direct PWM dimming with output, which follows input and achieves linearity as low as 0.009% at 200Hz or 1.35% at 30kHz.
The drivers incorporate dynamic headroom control that monitors the highest LED forward voltage string and uses its feedback signal for the minimum output regulation. The ISL97682, ISL97683, ISL97684 incorporate extensive fault protection functions including string open and short circuit detections, OVP, and OTP. The switching frequency can be selected at either 600kHz or 1.0MHz in PFM or PWM mode. These parts are available in the thin and compact 16 Ld 3mmx3mm TQFN package and operate in ambient temperature from -40°C to +85°C.
Manufacturer: Intersil
Win Source Part Number: 777497-ISL97683IRTZ-
Packaging: Reel package
Type: DC DC Regulator
Operating Temperature Range: -40°C ~ 85°C (TA)
Package: 16-WFQFN Exposed Pad
Applications: Backlight
Mounting: SMD
Voltage - Output: 45V
Frequency: 600kHz
Internal Switch(s): Yes
Topology: Step-Up (Boost)
Number of Outputs: 3
Dimming: PWM
Family Name: ISL97683
Categories: Integrated Circuits (ICs)
Manufacturer Package: 16-TQFN (3x3)
Voltage Supply MAX: 26.5V
Output Current per Channel: 50mA
Voltage Supply MIN: 4V
Alternative Parts (Cross-Reference): RT8510GQW; BD6066GU-E2; ADD5203ACPZ-RL; LP8556TME-E02/NOPB;
Introduction Date: March 11, 2011
ECCN: EAR99
Country of Origin: Taiwan
Estimated EOL Date: 2025
Halogen Free: Compliant
Popularity: Medium
Fake Threat In the Open Market: 43 pct.
Supply and Demand Status: Balance
LED DRIVER, FULL REEL; Device Topology:Boost (Step Up); Input Voltage Min:4V; Input Voltage Max:26.5V; Output Voltage Max:45V; Output Current Max:50mA; Switching Frequency:1MHz; No. of Outputs:3Outputs; IC Mounting:Surface Mount RoHS Compliant: Yes
IC LED DRIVER RGLTR DIM 16TQFN
IC LED DRV RGLTR PWM 50MA 16TQFN
| Renesas Electronics Corporation | Win Source Electronics | Newark, An Avnet Company | Lingto Electronic Limited | Shenzhen Shengyu Electronics Technology Limited | |
|---|---|---|---|---|---|
| Product Category | LED Drivers | LED Drivers | LED Drivers | LED Drivers | LED Drivers |
| Product Number | ISL97683IRTZ-TK | 777497-ISL97683IRTZ-TK | 41T4050 | ISL97683IRTZ-TK | ISL97683IRTZ-TK |
| Product Name | Compact 3-Ch LED Drivers with Phase Shift Control | Board Mount LED Drivers - ISL97683IRTZ-TK | Led Driver, Full Reel; Device Topology Renesas | PMIC - LED Drivers | Integrated Circuits (ICs) - Power Management (PMIC) - LED Drivers |
| Form Factor | Intgrated Circuit (IC) | Intgrated Circuit (IC) | Intgrated Circuit (IC) | ||
| Input Voltage | 4 to 26.5 volts | 4 to 26.5 volts | 4 to 26.5 volts | ||
| Output Voltage | 45 volts | 45 volts | 45 volts | ||
| Output Current | 50 milliamps | 50 milliamps | 50 milliamps | ||
| Efficiency | 90.1 % |
