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6-Channel LED Driver

封装信息

Lead Count (#) 24
Pkg. Code LJE
Pitch (mm) 0.5
Pkg. Type QFN
Pkg. Dimensions (mm) 3.99 x 3.99 x 0.90

环境和出口类别

Moisture Sensitivity Level (MSL) 3
Pb (Lead) Free Yes
ECCN (US) EAR99
HTS (US) 8542.39.0090
RoHS (ISL97636AIRZ) 下载

产品属性

Lead Count (#) 24
Carrier Type Tube
Moisture Sensitivity Level (MSL) 3
Pb (Lead) Free Yes
Pb Free Category Pb-Free 100% Matte Tin Plate w/Anneal-e3
Temp. Range (°C) -40 to +85°C
Backlight for LCD Size (inches) 17 - 17
Brightness Control PWM
Channels (#) 6
Fault Switch Yes
Frequency Range (MHz) 1.2 - 1.2
IQ (Max) (μA) 20
IS (mA) 10
ISW (Typical) (mA) 2500
Input Voltage (Max) (V) 24
Input Voltage (Min) (V) 6
Input Voltage Range (V) 6 - 24
Integrated Diode No
LEDs (#) 60
Length (mm) 4
MOQ 1500
Output Current Max/Channel (mA) 35
Output Voltage (Max) (V) 34.5
Over Voltage Protection Yes
Parametric Category Backlight LED Drivers
Peak Efficiency (%) 91
Pitch (mm) 0.5
Pkg. Dimensions (mm) 4.0 x 4.0 x 0.90
Pkg. Type QFN
Qualification Level Standard
Thickness (mm) 0.9
Topology [Rail 1] Inductor Boost
Total Current for DC/DC Lighting (mA) 210
Width (mm) 4

描述

The ISL97636A is an integrated power LED driver that controls 6 channels of LED current for LCD backlight applications. The ISL97636A is capable of driving typically 54 (6x9) pieces of 3. 5V/30mA or 60 (6x10) pieces of 3. 2V/20mA LEDs. The ISL97636A's contains 6 channels of voltage controlled current sources with typical currents matching of ±1%, which compensate for the non-uniformity effect of forward voltages variance in the LED stacks. To minimize the voltage headroom and power loss in the typical multi-strings operation, the ISL97636A features a dynamic headroom control that monitors the highest LED forward voltage string and uses its feedback signal for output regulation. The LED brightness can be pulse width modulated with an applied PWM signal from DC to audio noise free 20kHz. The ISL97636A features extensive protection functions that include string open and short circuit detections, OVP, OTP, thermal shutdown and an optional input overcurrent protection with master fault disconnect switch. Available in the 24 Ld 4mmx4mm QFN, the ISL97636A operates from -40°C to +85°C with input voltage ranges from 6V to 24V for high LEDs count applications.