Using the TPS92001EVM-645 User's Guide Literature Number: SLUU510 August 2011
User's Guide SLUU510 – August 2011 Non-Dimmable LED Lighting Driver Controller 1 Introduction The TPS92001EVM-645 evaluation module is a constant-current, non-dimmable LED driver. It is designed to drive 9 LEDs at 330 mA and is rated for an AC input of 105 VRMS to 135 VRMS. 2 Description The TPS92001/2 family of general LED lighting PWM controllers contains control and drive circuitry required for off-line isolated or non-isolated LED lighting applications.
Schematic www.ti.com Schematic + 4 Figure 1.
Test Setup 5 www.ti.com Test Setup WARNING High voltages that may cause injury exist on this evaluation module (EVM). Please ensure all safety procedures are followed when working on this EVM. Never leave a powered EVM unattended. The use of isolated equipment is highly recommended. 5.1 Test Equipment Voltage Source: 105 VRMS to 135 VRMS isolated AC source capable of at least 20 W. Multimeters: Two Voltmeters for measuring up to 35 VDC each and two ammeters for up to 1 A each.
Test Setup www.ti.com 5.3 List of Test Points Table 2.
Test Procedure 6 www.ti.com Test Procedure All tests should use the set up described in Section 5 of this user guide. WARNING High voltage levels are present on this evaluation module whenever it is energized. Proper precautions must be observed whenever working with this module. Serious injury can occur if proper safety procedures are not followed. 6.1 Line/Load Regulation and Efficiency Measurement Procedure 1. 2. 3. 4. Connect EVM per Figure 2 above.
Performance Data and Typical Characteristic Curves www.ti.com 7 Performance Data and Typical Characteristic Curves Figure 3 through 12 present typical performance curves for TPS92001EVM-645. 7.1 Efficiency Efficiency Output Current (mA) 88.4 88.3 88.2 88.1 88.0 87.9 105 110 115 120 125 Input Voltage (VAC) 130 G000 Figure 3. Efficiency 7.2 Input Voltage vs. Power Factor PF Power Factor 0.885 0.880 0.875 0.870 0.865 105 110 115 120 125 Input Voltage (VAC) 130 G000 Figure 4.
Performance Data and Typical Characteristic Curves 7.4 www.ti.com Output Ripple Figure 6. Output Ripple 7.5 Input Waveforms Figure 7.
Performance Data and Typical Characteristic Curves www.ti.com 7.6 Clock Signal and Switch Node Voltage Figure 8. Clock Signal and Switching Node Waveform 7.7 Current Sense Figure 9.
Performance Data and Typical Characteristic Curves 7.8 www.ti.com Turn-On Waveform Figure 10. Enable Turn On Waveforms 7.9 Turn-Off Waveform Figure 11.
www.ti.com 8 TPS92001EVM-645 EVM Assembly Drawing and PCB layout TPS92001EVM-645 EVM Assembly Drawing and PCB layout The following figures (Figure 12 through Figure 14) show the design of the TPS92001EVM-645 printed circuit board. Figure 12.
TPS92001EVM-645 EVM Assembly Drawing and PCB layout www.ti.com Figure 13.
www.ti.com TPS92001EVM-645 EVM Assembly Drawing and PCB layout Figure 14.
List of Materials 9 www.ti.com List of Materials The EVM components list according to the schematic shown in Figure 1. Table 3. TPS92001EVM-645 List of Materials 14 QTY REF DES 1 C1 Capacitor, leaded, metalized film, 400 VDC, 125°C, 20 ±%, 0.1 µF, 0.310 inch x 0.310 inch DESCRIPTION B32529D6104M Epcos 1 C10 Capacitor, ceramic, 25 V, X7R, 10%, 1.0 µF, 0805 Std Std 1 C11 Capacitor, ceramic, 10 V, X7R, 10%, 0.47 µF, 0603 Std Std 1 C2 Capacitor, poly film, 200 VAC, ±20%, 0.1 µF, 6.
Evaluation Board/Kit Important Notice Texas Instruments (TI) provides the enclosed product(s) under the following conditions: This evaluation board/kit is intended for use for ENGINEERING DEVELOPMENT, DEMONSTRATION, OR EVALUATION PURPOSES ONLY and is not considered by TI to be a finished end-product fit for general consumer use. Persons handling the product(s) must have electronics training and observe good engineering practice standards.
IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.
