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White LED Driver with PWM Dimming

Package Information

CAD Model: View CAD Model
Pkg. Type: TDFN
Pkg. Code: LBV
Lead Count (#): 8
Pkg. Dimensions (mm): 2.01 x 3.00 x 0.75
Pitch (mm): 0.5

Environmental & Export Classifications

Moisture Sensitivity Level (MSL) 3
Pb (Lead) Free Yes
ECCN (US) EAR99
HTS (US) 8542.39.0090
RoHS (ISL97634IRT14Z-T) Download

Product Attributes

Lead Count (#) 8
Carrier Type Reel
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) 3.5 - 3.5
Brightness Control PWM DC to 32kHz
Channels (#) 1
Fault Switch Yes
Frequency Range (MHz) 1.4 - 1.4
IQ (Max) (μA) 1
IS (mA) 1.5
ISW (Typical) (mA) 470
Input Voltage (Max) (V) 5.5
Input Voltage (Min) (V) 2.4
Input Voltage Range (V) 2.4 - 5.5
Integrated Diode Yes
LEDs (#) 7
Length (mm) 2
MOQ 6000
Output Current Max/Channel (mA) 40
Output Voltage (Max) (V) 27
Over Voltage Protection Yes
Parametric Category Backlight LED Drivers
Peak Efficiency (%) 85
Pitch (mm) 0.5
Pkg. Dimensions (mm) 2.0 x 3.0 x 0.75
Pkg. Type TDFN
Qualification Level Standard
Thickness (mm) 0.75
Topology [Rail 1] Inductor Boost
Total Current for DC/DC Lighting (mA) 40
Width (mm) 3

Description

The ISL97634 represents an efficient and highly integrated PWM boost LED driver that is suitable for LED backlighting in small size LCD panels. With integrated Schottky diode, OVP, and wide range of PWM dimming capability, the ISL97634 provides a simple, reliable, and flexible solution to the backlight designers. The ISL97634 features a wide range of PWM dimming control capability. It allows dimming frequency as low as DC to 32kHz beyond audible spectrum. The ISL97634 also features a feedback disconnect switch to prevent the output from being modulated by the PWM dimming signal that minimizes system disturbance. The ISL97634 is available in the 8 Ld TDFN (2mmx3mm) package. There are 14V, 18V, and 26V OVP options that are suitable for various number of LEDs in series. The ISL97634 is specified for operation over the -40°C to +85°C ambient temperature at input voltage from 2. 4V to 5. 5V.