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TPS61161A Datasheet(PDF) 1 Page - Texas Instruments |
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TPS61161A Datasheet(HTML) 1 Page - Texas Instruments |
1 / 31 page C1 38V MAX VIN SW FB GND CTRL COMP C2 20 mA TPS61161A ON/OFF DIMMING CONTROL V 3 V to 18 V I L1 22 H m 1 F m C3 220 nF R 10 set W 1 F m L1: TDK VLCF5020T-220MR75-1 C1: Murata GRM188R61E105K C2: Murata GRM21BR71H105K D1: ONsemi MBR0540T1 D1 Product Folder Sample & Buy Technical Documents Tools & Software Support & Community An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. TPS61160A, TPS61161A SLVS937C – MARCH 2009 – REVISED JULY 2016 TPS6116xA White LED Driver with PWM Brightness Control in 2-mm x 2-mm WSON Package 1 1 Features 1 • Input Voltage Range: 2.7 V to 18 V • 26-V Open LED Protection for TPS61160A 38-V Open LED Protection for TPS61161A • 200mV Reference Voltage With ±2% Accuracy • PWM Interface for Brightness Control • Built-in Soft Start • Up to 90% Efficiency • 2-mm × 2-mm × 0.8-mm 6-Pin WSON Package With Thermal Pad 2 Applications • Cellular Phones • Portable Media Players • Ultra Mobile Devices • GPS Receivers • White LED Backlighting for Media Form Factor Display 3 Description With a 40-V rated integrated switch FET, the TPS61160A/61A is a boost converter that drives LEDs in series. The boost converter runs at 600-kHz fixed switching frequency to reduce output ripple, improve conversion efficiency, and allows for the use of small external components. The default white LED current is set with the external sensor resistor Rset, and the feedback voltage is regulated to 200 mV, as shown in the typical application. During the operation, the LED current can be controlled by a pulse width modulation (PWM) signal applied to the CTRL pin through which the duty cycle determines the feedback reference voltage. In PWM dimming mode, the TPS61160A/61A does not burst the LED current; therefore, it does not generate audible noises on the output capacitor. For maximum protection, the device features integrated open LED protection that disables the TPS61160A/61A to prevent the output from exceeding the absolute maximum ratings during open LED conditions. The TPS61160A/61A is available in a space-saving, 2-mm × 2-mm WSON package with thermal pad. Device Information(1) PART NUMBER PACKAGE OPEN LED PROTECTION TPS61160A WSON (6) TPS61160A use 26 V (typical) TPS61161A TPS61161A use 38 V (typical) (1) For all available packages, see the orderable addendum at the end of the data sheet. Typical Application of TPS61161A |
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