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SN3218 Datasheet

Part Number SN3218
Manufacturers SI-EN Technolog
Logo SI-EN Technolog
Description 18 Channel LED Driver
Datasheet SN3218 DatasheetSN3218 Datasheet (PDF)

SN3218 18 Channel LED Driver Description SN3218 is comprised of 18 constant current channels each with independent PWM control, designed for driving LEDs. The output current of each channel can be set at up to 23mA (Max.) by an external resistor. The average LED current of each channel can be changed in 256 steps by changing the PWM duty cycle through an I2C interface. The chip can be turned off by pulling the SDB pin low or by using the software shutdown feature to reduce power consumption. T.

  SN3218   SN3218






Part Number SN3218A
Manufacturers SI-EN Technolog
Logo SI-EN Technolog
Description 18 Channel LED Driver
Datasheet SN3218 DatasheetSN3218A Datasheet (PDF)

SN3218A 18 SN3218A 18 , 256 。 , 38mA。 I2C SN3218A , SDB , 。SN3218A “1010 1000”。 SN3218A QFN-24(4mm × 4mm) SOP-24 。 2.7V ~ 5.5V,-40°C ~ +85°C 。  2.7V ~ 5.5V  I2C ,,   LED  LED 256  -40°C ~ +85°C  QFN-24(4mm × 4mm)、SOP-24  LED  LED 1 1:REXT = 3.3kΩ , 21mA。 REXT , 9 。 2:PCB ,,。 2011.12 P0.4 1 QFN-24 () SN3218A OUT18 1 R_EXT 2 VCC 3 GND 4 SDA 5 SCL 6 18 OUT12 17 OUT11 16 OUT10 15 OUT9 14 OUT8 13 OUT7 SOP-24 1 2 3 4 5 6 7~23 24 OUT18 R_EXT V.

  SN3218   SN3218







Part Number SN321
Manufacturers KODENSHI KOREA
Logo KODENSHI KOREA
Description Low Power Single OP AMP
Datasheet SN3218 DatasheetSN321 Datasheet (PDF)

www.DataSheet.co.kr Low Power Single OP-AMP Semiconductor http:// www.auk.co.kr SN321 Description The SN321 consists of a high gain Internally frequency compensated operational amplifier designed to operate from a single power supply over a wide range of voltage. The input common mode range includes ground and the device is able to operate in single supply applications, even in dual supply applications. it is also can be driven large capacitive loads. The SN321 is available in the SOT-25(SOT2.

  SN3218   SN3218







18 Channel LED Driver

SN3218 18 Channel LED Driver Description SN3218 is comprised of 18 constant current channels each with independent PWM control, designed for driving LEDs. The output current of each channel can be set at up to 23mA (Max.) by an external resistor. The average LED current of each channel can be changed in 256 steps by changing the PWM duty cycle through an I2C interface. The chip can be turned off by pulling the SDB pin low or by using the software shutdown feature to reduce power consumption. The slave address is fixed “1010 1000”. SN3218 is available in QFN-24 (4mm × 4mm). It operates from 2.7V to 5.5V over the temperature range of -40°C to +85°C. Features z 2.7V to 5.5V supply z I2C interface, automatic address increment function z Internal reset register z Modulate LED brightness with 256 steps PWM z Each channel can be controlled independently z -40°C to +85°C temperature range z QFN-24 (4mm × 4mm) package Applications z Mobile phones and other hand-held devices for LED display z LED in home appliances Typical Application Circuit Jul. 2010 P0.1 Figure 1 Typical application circuit 1 SI-EN Technology Pin Configuration Package Pin Configuration (Top View) SN3218 24 SDB 23 OUT17 22 OUT16 21 OUT15 20 OUT14 19 OUT13 QFN-24 OUT18 1 R_EXT 2 VDD 3 GND 4 SDA 5 SCL 6 18 OUT12 17 OUT11 16 OUT10 15 OUT9 14 OUT8 13 OUT7 OUT1 7 OUT2 8 OUT3 9 OUT4 10 OUT5 11 OUT6 12 Pin Description No. 1 2 3 4 5 6 7~23 24 Pin OUT18 R_EXT VDD GND SDA SCL OUT1 ~ OUT17 SDB Thermal Pad I/O .


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