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ISL97634 Functional Diagram

ISL97634IRT18Z-TK

Obsolete
Renesas Electronics Corporation

LED DRIVER, BOOST/SEPIC, 1.45MHZ, TDFNEP ROHS COMPLIANT: YES

ISL97634 Functional Diagram

ISL97634IRT18Z-TK

Obsolete
Renesas Electronics Corporation

LED DRIVER, BOOST/SEPIC, 1.45MHZ, TDFNEP ROHS COMPLIANT: YES

Description

General part information

ISL97634 Series

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.

Technical Specifications

Parameters and characteristics for this part

SpecificationISL97634IRT18Z-TK
ApplicationsBacklight
Current - Output / Channel50 mA
DimmingPWM
Frequency1.45 MHz
Internal Switch(s)Yes
Mounting TypeSurface Mount
Number of Outputs1
Operating Temperature (Max)85 °C
Operating Temperature (Min)-40 °C
Package / Case8-WFDFN Exposed Pad
Package Length2 mm
Package Name8-TDFN
Package Width3 mm
TopologySEPIC, Step-Up (Boost)
TypeDC DC Regulator
Voltage - Supply (Max)5.5 V
Voltage - Supply (Min)2.4 V

Pricing

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CAD

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Documents

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