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TPS61160DRVTG4 Datasheet(PDF) 15 Page - Texas Instruments |
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TPS61160DRVTG4 Datasheet(HTML) 15 Page - Texas Instruments |
15 / 39 page ![]() 15 TPS61160, TPS61161 www.ti.com SLVS791E – NOVEMBER 2007 – REVISED JULY 2016 Product Folder Links: TPS61160 TPS61161 Submit Documentation Feedback Copyright © 2007–2016, Texas Instruments Incorporated Device Functional Modes (continued) 7.4.4 External PWM Dimming For assistance in selecting the proper values for RSET, R1-R3, RFLTR, CFLTR and D2 for the specific application, refer to How to Use Analog Dimming With the TPS6116x (SLVA471) and/or Design Tool for Analog Dimming Using a PWM Signal (SLVC366). Also see Choosing Component Values. 7.5 Programming 7.5.1 EasyScale: One-Wire Digital Dimming EasyScale is a simple but flexible one pin interface to configure the FB voltage. The interface is based on a master-slave structure, where the master is typically a microcontroller or application processor. Figure 14 and Table 2 give an overview of the protocol. The protocol consists of a device specific address byte and a data byte. The device specific address byte is fixed to 72 hex. The data byte consists of five bits for information, two address bits, and the RFA bit. The RFA bit set to high indicates the Request for Acknowledge condition. The Acknowledge condition is only applied if the protocol was received correctly. The advantage of EasyScale compared with other one-pin interfaces is that its bit detection is in a large extent independent from the bit transmission rate. It can automatically detect bit rates from 1.7 kBit/sec and up to 160 kBit/sec. |
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