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LM3633YFQT Datasheet(PDF) 3 Page - Texas Instruments |
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LM3633YFQT Datasheet(HTML) 3 Page - Texas Instruments |
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3 / 59 page  A B C D E 1 2 3 4 Top View E D C B A 1 2 3 4 Bottom View LM3633 www.ti.com SNVS867 – JUNE 2014 5 Pin Configuration and Functions DSBGA (YFQ) 20 PINS Pin Functions PIN DESCRIPTION NAME NUMBER Integrated charge pump flying capacitor negative pin. Connect a 1-µF ceramic capacitor between C+ C − A1 and C −. Integrated charge pump flying capacitor positive pin. Connect a 1-µF ceramic capacitor between C+ and C+ A2 C −. CPOUT A3 Integrated charge pump output pin. Bypass CPOUT to GND with a 1-µF ceramic capacitor. IN A4 Input voltage connection. Bypass IN to GND with a minimum 2.2-µF ceramic capacitor. Input pin to high-voltage current sink 1 (40 V max). The boost converter regulates the minimum of HVLED1 B1 HVLED1, HVLED2 and HVLED3 to VHR. SDA B2 Serial data connection for I2C-Compatible Interface. Overvoltage sense input. Connect OVP to the positive pin of the inductive boost output capacitor OVP B3 (COUT). GND B4 Ground Input pin to high-voltage current sink 2 (40 V max). The boost converter regulates the minimum of HVLED2 C1 HVLED1, HVLED2 and HVLED3 to VHR. SCL C2 Serial clock connection for I2C-Compatible Interface. PWM brightness control input for CABC operation. PWM is a high-impedance input and cannot be left PWM C3 floating. Drain connection for the internal NFET. Connect SW to the junction of the inductor and the Schottky SW C4 diode anode. Input pin to high-voltage current sink 3 (40 V max). The boost converter regulates the minimum of HVLED3 D1 HVLED1, HVLED2 and HVLED3 to VHR. Hardware enable input. Drive this pin high to enable the device. Drive this pin low to force the device HWEN D2 into a low power shutdown. HWEN is a high-impedance input and cannot be left floating. LVLED6 D3 Low-voltage current sink 6 LVLED5 D4 Low-voltage current sink 5 LVLED1 E1 Low-voltage current sink 1 LVLED2 E2 Low-voltage current sink 2 LVLED3 E3 Low-voltage current sink 3 LVLED4 E4 Low-voltage current sink 4 Copyright © 2014, Texas Instruments Incorporated Submit Documentation Feedback 3 Product Folder Links: LM3633 |
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