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UCC27527DSDT Datasheet(PDF) 11 Page - Texas Instruments |
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UCC27527DSDT Datasheet(HTML) 11 Page - Texas Instruments |
11 / 35 page 1 ENA 500 kW VDD 2 INA 465 kW 3 GND 4 INB 465 kW UVLO VDD V DD VDD 8 7 6 5 ENB OUTA VDD OUTB 500 kW VDD VDD UCC27527, UCC27528 www.ti.com SLUSBD0E – JUNE 2013 – REVISED DECEMBER 2014 8 Detailed Description 8.1 Overview The UCC2752x family of products represent Texas Instruments’ latest generation of dual-channel, low-side high- speed gate driver devices featuring 5-A source/sink current capability, industry best-in-class switching characteristics and a host of other features listed in table below all of which combine to provide efficient, robust, and reliable operation in high-frequency switching power circuits. Table 1. UCC27527 and UCC27528 Features and Benefits FEATURE BENEFIT Best-in-class 13-ns (typ) propagation delay Extremely low pulse transmission distortion 1-ns (typ) delay matching between channels Ease of paralleling outputs for higher (2x) current capability, ease of driving parallel power switches Expanded VDD Operating range of 4.5 V to 18 V Flexibility in system design Expanded operating temperature range of -40 °C to 140 °C (See Electrical Characteristics table) VDD UVLO Protection Outputs are held Low in UVLO condition, which ensures predictable, glitch-free operation at power-up and power-down Outputs held Low when input pins (INx) in floating condition Safety feature, especially useful in passing abnormal condition tests during safety certification Outputs enabled when enable pins (ENx) in floating condition Pin-to-pin compatibility with UCC2732X family of products from TI, in designs where pin #1, 8 are in floating condition CMOS input threshold logic Enhanced noise immunity, higher threshold level and wider hysteresis which is a function of VDD supply voltage and ability to employ RCD delay circuits on input pins. Ability of input and enable pins to handle voltage levels not restricted System simplification, especially related to auxiliary bias supply by VDD pin bias voltage architecture 8.2 Functional Block Diagram Figure 22. UCC27528 Block Diagram Copyright © 2013–2014, Texas Instruments Incorporated Submit Documentation Feedback 11 Product Folder Links: UCC27527 UCC27528 |
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