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TPS28226DRBR Datasheet(PDF) 11 Page - Texas Instruments |
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TPS28226DRBR Datasheet(HTML) 11 Page - Texas Instruments |
11 / 39 page 6 13K 2 VDD EN/PG BOOT UGATE PHASE LGATE GND 7 1 8 5 4 VDD 27K 3-STATE INPUT CIRCUIT PWM 3 SHOOT- THROUGH PROTECTION THERMAL SD HLD-OFF TIME UVLO TPS28226 www.ti.com SLUS791A – JULY 2007 – REVISED SEPTEMBER 2015 7 Detailed Description 7.1 Overview The TPS28226 features a 3-state PWM input compatible with all multi-phase controllers employing 3-state output feature. As long as the input stays within 3-state window for the 250-ns hold-off time, the driver switches both outputs low. This shutdown mode prevents a load from the reversed- output-voltage. The other features include undervoltage lockout, thermal shutdown and two-way enable/power good signal. Systems without 3-state featured controllers can use enable/power good input/output to hold both outputs low during shutting down. The TPS28226 is offered in an economical SOIC-8 and thermally enhanced low-size Dual Flat No-Lead (DFN-8) packages. The driver is specified in the extended temperature range of –40°C to 125°C with the absolute maximum junction temperature 150°C. 7.2 Functional Block Diagram For the TPS28226DRB the thermal PAD on the bottom side of package must be soldered and connected to the GND pin and to the GND plane of the PCB in the shortest possible way. Copyright © 2007–2015, Texas Instruments Incorporated Submit Documentation Feedback 11 Product Folder Links: TPS28226 |
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