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Renesas Electronics Corporation
LED Driver with 1-Wire Dimming

Package Information

CAD Model:View CAD Model
Pkg. Type:TDFN
Pkg. Code:LQE
Lead Count (#):8
Pkg. Dimensions (mm):2.0 x 3.0 x 0.75
Pitch (mm):0.5

Environmental & Export Classifications

Moisture Sensitivity Level (MSL)2
Pb (Lead) FreeYes
ECCN (US)EAR99
HTS (US)8542.39.0090
RoHS (ISL97632IRT14Z-TK)Download

Product Attributes

Lead Count (#)8
Carrier TypeReel
Moisture Sensitivity Level (MSL)2
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)3.5 - 3.5
Brightness ControlDigital 5-Bit Dimming
Channels (#)1
Fault SwitchYes
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 DiodeYes
InterfaceSingle Wire
LEDs (#)7
Length (mm)2
MOQ1000
Output Current Max/Channel (mA)40
Output Voltage (Max) (V)27
Over Voltage ProtectionYes
Parametric CategoryBacklight LED Drivers
Peak Efficiency (%)86
Pitch (mm)0.5
Pkg. Dimensions (mm)2.0 x 3.0 x 0.75
Pkg. TypeTDFN
Qualification LevelStandard
Thickness (mm)0.75
Topology [Rail 1]Inductor Boost
Total Current for DC/DC Lighting (mA)40
Width (mm)3

Description

The ISL97632 represents an efficient and highly integrated PWM boost LED driver that is suitable for 1. 8 to 3. 5 LCDs that employ 2 to 7 white LEDs for backlighting. With integrated Schottky diode, OVP, and dynamic digital dimming capability, the ISL97632 provides a simple, reliable, and flexible solution to the backlight designers. The ISL97632 features a simple 1-Wire digital interface that provides a 5-bit dimming control. The dimming signal adjusts the FB voltage and therefore the LED brightness in a DC manner in 32 linear steps. An EN pin can be used to provide a zero brightness setting or shutdown power saving function. The ISL97632 is available in the 8 Ld TDFN (2mmx3mm) package. There are 14V, 18V, and 26V OVP options that are suitable for 3, 4, and 7 LEDs (3. 5V/20mA type) backlight applications respectively. The ISL97632 is specified for operation over the -40°C to +85°C ambient temperature at input voltage from 2. 4V to 5. 5V.