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SC624A Datasheet(PDF) 11 Page - Semtech Corporation |
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SC624A Datasheet(HTML) 11 Page - Semtech Corporation |
11 / 23 page SC624A 11 Pin Descriptions Pin # Pin Name Pin Function 1 C2- Negative connection to bucket capacitor 2 — requires a 1μF capacitor connected to C2+ 2 PGND Ground pin for high current charge pump 3NC Unused pin — do not terminate 4 BL1 Current sink output for main backlight LED 1 — leave this pin open if unused 5 BL2 Current sink output for main backlight LED 2 — leave this pin open if unused 6 BL3 Current sink output for main backlight LED 3 — leave this pin open if unused 7 BL4 Current sink output for main backlight LED 4 — leave this pin open if unused 8 AGND Analog ground pin — connect to ground and separate from PGND current 9 SCL I2C clock input pin 10 NC Unused pin — do not terminate 11 SDA I2C bi-directional data pin — used for read and write operations for all internal registers (refer to Register Map and I2C Interface sections) 12 EN Chip enable — active high — low state resets all registers (see register map table) 13 BYP Bypass pin for voltage reference — connect with a 22nF capacitor to AGND 14 LDO2 Output of LDO2 — connect with a 1μF capacitor to AGND 15 LDO1 Output of LDO1 — connect with a 1μF capacitor to AGND 16 VOUT Charge pump output — all LED anode pins should be connected to this pin — requires a 2.2μF capacitor to PGND 17 C2+ Positive connection to bucket capacitor 2 — requires a 1μF capacitor connected to C2- 18 C1+ Positive connection to bucket capacitor 1 — requires a 1μF capacitor connected to C1- 19 VIN Battery voltage input — connect with a 1μF capacitor to PGND 20 C1- Negative connection to bucket capacitor 1 — requires a 1μF capacitor connected to C1+ T THERMAL PAD Thermal pad for heatsinking purposes — connect to ground plane using multiple vias — not connected internally |
Similar Part No. - SC624A_09 |
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Similar Description - SC624A_09 |
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