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LM3533TMX-40 Datasheet(PDF) 3 Page - Texas Instruments |
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LM3533TMX-40 Datasheet(HTML) 3 Page - Texas Instruments |
3 / 63 page A1 A2 B1 B2 B3 A3 C2 C1 C3 D2 D3 A4 B4 C4 D4 D1 E2 E3 E4 E1 LM3533 www.ti.com SNOSC68C – APRIL 2012 – REVISED SEPTEMBER 2015 5 Pin Configuration and Functions YFQ Package 20-Pin DSBGA Top View Pin Functions PIN TYPE DESCRIPTION NO. NAME Integrated charge pump flying capacitor negative terminal. Connect a 1-µF ceramic capacitor A1 C − OUT from C+ to C −. Integrated charge pump flying capacitor positive terminal. Connect a 1-µF ceramic capacitor A2 C+ OUT from C+ to C −. A3 CPOUT OUT Integrated charge pump output terminal. Bypass CPOUT to GND with a 1-µF ceramic capacitor. A4 IN IN Input voltage connection. Bypass IN to GND with a minimum 2.2-µF ceramic capacitor. B1 SCL IN Serial clock connection for I2C-compatible interface. B2 SDA I/O Serial data connection for I2C-compatible interface. Overvoltage sense Input. Connect OVP to the positive terminal of the inductive boost's output B3 OVP IN capacitor (COUT). B4 GND GND Ground Input pin to high-voltage current sink 1 (40 V maximum). The boost converter regulates the C1 HVLED1 IN minimum of HVLED1 and HVLED2 to 0.4 V. ALS interrupt output (INT). When INT mode is enabled this pin becomes an open-drain output C2 INT OUT that pulls low when the ALS changes zones. On power-up, INT mode is disabled and is high impedance and must be tied high or low. PWM brightness control input for CABC operation. PWM is a high-impedance input and cannot C3 PWM IN be left floating. Drain connection for the internal NFET. Connect SW to the junction of the inductor and the C4 SW IN Schottky diode anode. Input pin high-voltage current sink 2 (40 V maximum). The boost converter regulates the D1 HVLED2 IN minimum of HVLED1 and HVLED2 to 0.4 V. D2 ALS IN Ambient light sensor input. Hardware enable input. Drive this pin high to enable the device. Drive this pin low to force the D3 HWEN IN device into a low power shutdown. HWEN is a high-impedance input and cannot be left floating. D4 LVLED5 IN Low-voltage current sink 5 E1 LVLED1 IN Low-voltage current sink 1 E2 LVLED2 IN Low-voltage current sink 2 E3 LVLED3 IN Low-voltage current sink 3 E4 LVLED4 IN Low-voltage current sink 4 Copyright © 2012–2015, Texas Instruments Incorporated Submit Documentation Feedback 3 Product Folder Links: LM3533 |
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