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TPS5172RHAR Datasheet(PDF) 8 Page - Texas Instruments |
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TPS5172RHAR Datasheet(HTML) 8 Page - Texas Instruments |
8 / 42 page DEVICE INFORMATION TERMINAL CONFIGURATION 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 30 29 28 27 26 25 24 23 22 21 40 39 38 37 36 35 34 33 32 31 DROOP VREF GND CSP1 CSN1 CSN2 CSP2 GFB VFB THRM TPS51727 RHA PACKAGE DRVH1 VBST1 LL1 DRVL1 V5IN PGND DRVL2 LL2 VBST2 DRVH2 TPS51727 SLUS806A – APRIL 2008 – REVISED MAY 2008 .............................................................................................................................................................. www.ti.com RHA Package Terminal Configuration (Top View) TERMINAL FUNCTIONS TERMINAL I/O DESCRIPTION NAME NO. CSN1 5 Negative current sense inputs. Connect to the most negative node of current sense resistor or inductor DCR I sense RC network. CSN2 6 CSP1 4 Positive current sense inputs. Connect to the most positive node of current sense resistor or inductor DCR I sense RC network. CSP2 7 DACS 14 I DAC range selection input. Tie to V5FILT. Output of GM error amplifier. A resistor to VREF sets the droop gain. A capacitor to VREF helps shape the DROOP 1 O transient response. DRVH1 30 O Top N-channel MOSFET gate drive outputs DRVH2 21 DRVL1 27 O Synchronous N-channel MOSFET gate drive outputs. DRVL2 24 EN 34 I Enable signal. 3.3V I/O level; 100ns de-bounce. Regulator enters controlled “soft-stop” when brought low. Voltage sense return. Tie to GND with a 100- Ω resistor to close feedback when voltage sensing through a GFB 8 I socket. GND 3 - Analog / signal ground. Tie to quiet ground plane. Precision slew rate control setting. All voltage transitions, including start-up and shutdown, occur at the rated ISLEW 39 I defined by the ISLEW resistor. Tie the ISLEW resistor to GND to enable OVP or VREF to disable OVP. LL1 28 I/O Top N-channel MOSFET gate drive return. Also, input for adaptive gate drive timing. LL2 23 N/C 33 - Do not connect anything to this pin 8 Copyright © 2008, Texas Instruments Incorporated Product Folder Link(s): TPS51727 |
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