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4-Channel LED Driver with Phase Shift Control

パッケージ情報

CADモデル:View CAD Model
Pkg. Type:QFN
Pkg. Code:LCB
Lead Count (#):20
Pkg. Dimensions (mm):3.99 x 3.99 x 0.90
Pitch (mm):0.5

環境及び輸出分類情報

Moisture Sensitivity Level (MSL)3
Pb (Lead) FreeYes
ECCN (US)EAR99
HTS (US)8542.39.0090

製品スペック

Lead Count (#)20
Carrier TypeReel
Moisture Sensitivity Level (MSL)3
Pb (Lead) FreeYes
Pb Free CategoryPb-Free 100% Matte Tin Plate w/Anneal-e3
Temp. Range (°C)-40 to +85°C
Backlight for LCD Size (inches)17 - 17
Brightness ControlPWM
Channels (#)4
Fault SwitchYes
Frequency Range (MHz)0.6 - 1.2
IQ (Max) (μA)10
IS (mA)5
ISW (Typical) (mA)2200
Input Voltage (Max) (V)26
Input Voltage (Min) (V)4.5
Input Voltage Range (V)4.5 - 26
Integrated DiodeNo
LEDs (#)4
Length (mm)4
MOQ1000
Output Current Max/Channel (mA)30
Output Voltage (Max) (V)45
Over Voltage ProtectionYes
Parametric CategoryBacklight LED Drivers
Peak Efficiency (%)92
Pitch (mm)0.5
Pkg. Dimensions (mm)4.0 x 4.0 x 0.90
Pkg. TypeQFN
Qualification LevelStandard
Thickness (mm)0.9
Topology [Rail 1]Inductor Boost
Total Current for DC/DC Lighting (mA)120
Width (mm)4

説明

Support is limited to customers who have already adopted these products.

The ISL97675 is an LED driver that drives 4 channels of low power LEDs from 4. 5V to 26V input and up to 45V output. The ISL97675 compensates for non-uniformity of the forward voltage drops in the LED strings with its 4 voltage controlled-current source channels. Its headroom control monitors the highest LED forward voltage string for output regulation, to minimize the voltage headroom and power loss in the typical multi-string operation. The ISL97675 offers two PWM Dimming modes: The part digitizes the incoming 100Hz to 30kHz PWM signal and provides 8-bit PWM dimming with phase shift function. Another mode is direct PWM mode without phase shift, where the dimming frequency follows the input PWM signal and the minimum on time can be as short as 350ns. The ISL97675 features channel phase shift control to minimize the input, output ripple characteristics and load transients as well as spreading the light output to help eliminate or reduce the video and audio noise interference from the backlight driver operation.