ISL97678IRZ-TK Просмотр технического описания (PDF) - Renesas Electronics

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ISL97678IRZ-TK

8-Channel 45V, 50mA LED Driver

Renesas Electronics 

ISL97678

Revision History

The revision history provided is for informational purposes only and is believed to be accurate, but not warranted. Please visit our website to make sure

you have the latest revision.

DATE

REVISION

CHANGE

9/8/2017

FN6998.3

Added VHEADROOM_RANGE spec to the Electrical Specifications table.

Added Note 11.

In “Current Matching and Current Accuracy” on page 11, updated the second sentence in the second paragraph

for clarification.

Added Related Literature section.

Applied new header/footer.

3/22/2014

FN6998.2

Changed PWM dimming “0.8%~100% duty cycle” to “0.4%~100% duty cycle” on the front page.

Changed External PWM Input “25kHz” to “20kHz” in the Features section in order to be consistent with Electrical

Specifications.

Updated Application Circuit and Block Diagram drawings along with the resistor and capacitor names.

Moved the VFSW specification to the BOOST SWITCHING REGULAR section of the Electrical Specifications table.

Changed “/SHUT” to “EN” to be consistent with the Pin Descriptions table.

Changed “ISET” to “RSET” for the LED current setting resistor to be consistent across the datasheet.

Changed “VISET” to “VRSET” to be consistent with the RSET pin name.

Changed “ROSC” to “RFSW” to be consistent across the datasheet.

Changed “R1” and “R2” to “RUPPER” and “RLOWER”, respectively in OVP and VOUT Requirement section.

Added FIGURE 1. TYPICAL APPLICATION CIRCUIT: TFT-LCD NOTEBOOK DISPLAY.

Added FIGURE 25. MINIMUM 0.4% PWM DIMMING DUTY CYCLE.

Updated “Package Outline Drawing” on page 17 to the latest revision.

11/5/09

FN6998.1 Changed VSC spec from “3.3min, 4.4max” to “3.3min, 4.6max”.

10/26/09

FN6998.0 Initial release

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FN6998 Rev.3.00

Sep 8, 2017

Page 16 of 17

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