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IS31LT3918 Datasheet

Part Number IS31LT3918
Manufacturers ISSI
Logo ISSI
Description HIGH VOLTAGE LED LIGHTING DRIVER
Datasheet IS31LT3918 DatasheetIS31LT3918 Datasheet (PDF)

IS31LT3918 HIGH VOLTAGE LED LIGHTING DRIVER WITH SWITCH DIMMING OCTOBER 2011 GENERAL DESCRIPTION IS31LT3918 LED driver IC is a peak current detection buck converter which operates in constant off time mode. It operates over a very wide input voltage supply range of 6VDC to 450VDC or 110VAC/220VAC. IS31LT3918 incorporates the special feature of switch dimming by detecting OFF-ON cycles of the main power switch. When the switch is cycled within a 2 second period (typical) the device automatically .

  IS31LT3918   IS31LT3918






Part Number IS31LT3916
Manufacturers ISSI
Logo ISSI
Description Offline LED driver
Datasheet IS31LT3918 DatasheetIS31LT3916 Datasheet (PDF)

IS31LT3916 Offline LED driver with active PFC and primary side sensing General Description Features February 2013 The IS31LT3916 is a primary side, peak current mode, isolated or non-isolated type HBLED driver. The device works at a constant frequency in discontinuous conduction mode to provide a constant power to the output. It eliminates the need for an opto-coupler, TL431, or any other type of secondary side feedback. It operates from a wide input voltage range of 85VAC to 265VAC. The IS.

  IS31LT3918   IS31LT3918







Part Number IS31LT3910
Manufacturers ISSI
Logo ISSI
Description UNIVERSAL HIGH BRIGHTNESS LED DRIVER
Datasheet IS31LT3918 DatasheetIS31LT3910 Datasheet (PDF)

IS31LT3910 UNIVERSAL HIGH BRIGHTNESS LED DRIVER WITH TEMPERATURE COMPENSATION GENERAL DESCRIPTION The IS31LT3910 is a peak current mode control LED driver IC. The IS31LT3910 operates in constant off-time mode. It allows efficient operation of High Brightness (HB) LEDs with voltage sources ranging from 8VDC to 450DC or 110VAC/220VAC. The IS31LT3910 includes a PWM dimming input that can accept an external control signal with a duty ratio of 0 - 100% and a frequency of up to a few kilohertz. It als.

  IS31LT3918   IS31LT3918







HIGH VOLTAGE LED LIGHTING DRIVER

IS31LT3918 HIGH VOLTAGE LED LIGHTING DRIVER WITH SWITCH DIMMING OCTOBER 2011 GENERAL DESCRIPTION IS31LT3918 LED driver IC is a peak current detection buck converter which operates in constant off time mode. It operates over a very wide input voltage supply range of 6VDC to 450VDC or 110VAC/220VAC. IS31LT3918 incorporates the special feature of switch dimming by detecting OFF-ON cycles of the main power switch. When the switch is cycled within a 2 second period (typical) the device automatically switches the dimming level to the next step. As a result, dimming can be achieved without replacing any wiring in the original system. There are multiple modes of switch dimming that the user may configure 2 steps or 3 steps, as well as different levels of dimming via the external pins DIM1 and DIM2. IS31LT3918 can also realize LED dimming using an external PWM signal. It can accept a PWM signal from 0% to 100% duty cycle. The LED current may also be adjusted linearly by applying an analog input voltage in the range of 0.5V to 2.5V. IS31LT3918 adopts a peak current mode control architecture, which eliminates the need for any additional loop compensation while maintaining a good degree of constant output current regulation. TYPICAL APPLICATION CIRCUIT Switch K D1 85Vac- 265Vac D3 Fuse D2 R1 C1 D4 C2 R5 Q2 DZ D6 R2 VIN DIM1 Gate CS ADJ http://www.DataSheet4U.net/ FEATURES        User configurable switch dimming levels 3% output current accuracy Over current, voltage and temperatu.


2013-02-23 : BU-61580    BU-61581    BU-61585    BU-61586    BU-61570    BU-61571    BU-61582    VQB100R-T110-S5    VQB100R-T110-S12    VQB100R-T110-S24   


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