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TUSB321AI Datasheet(PDF) 3 Page - Texas Instruments |
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TUSB321AI Datasheet(HTML) 3 Page - Texas Instruments |
3 / 21 page CC1 1 2 3 7 8 4 5 6 12 11 10 9 CC2 CURRENT_MODE PORT VBUS_DET OUT2 OUT1 VCONN_FAULT VDD DIR GND ID TUSB321AI www.ti.com SLLSER2 – OCTOBER 2015 5 Pin Configuration and Functions RWB Package 12-Pin X2QFN Top View Pin Functions PIN TYPE DESCRIPTION NAME NO. CC1 1 I/O Type-C configuration channel signal 1 CC2 2 I/O Type-C configuration channel signal 2 Advertise VBUS current. This 3-level input is used to control current advertisement in DFP mode or DRP mode connected as source. (See Table 2.) L - Default Current. Pull-down to GND or leave unconnected. CURRENT_MODE 3 I M - Medium (1.5A) current. Pull-up to VDD with 500-kΩ resistor. H - High (3.0A) current. Pull-up to VDD with 10-kΩ resistor. Tri-level input pin to indicate port mode. The state of this pin is sampled when VDD is active. H - DFP (Pull-up to VDD if DFP mode is desired) PORT 4 I NC - DRP (Leave unconnected if DRP mode is desired) L - UFP (Pull-down or tie to GND if UFP mode is desired) 5- to 28-V VBUS input voltage. VBUS detection determines UFP attachment. One 900-kΩ VBUS_DET 5 I external resistor required between system VBUS and VBUS_DET pin. VCONN_FAULT 6 O Open-drain output and is asserted low for when VCONN over-current fault is detected. This pin is an open drain output for communicating Type-C current mode detect when the OUT1 7 I/O TUSB321AI device is in UFP mode. Default current mode detected (H); medium or high current mode detected (L). (See Table 2.) This pin is an open drain output for communicating Type-C current mode detect when the OUT2 8 I/O TUSB321AI device is in UFP mode: default or medium current mode detected (H); high current mode detected (L). (See Table 2.) Open drain output; asserted low when the CC pins detect device attachment when port is a ID 9 O source (DFP), or dual-role (DRP) acting as source (DFP). GND 10 G Ground DIR of plug. This open drain output indicates the detected plug orientation: Type-C plug DIR 11 O position 2 (H); Type-C plug position 1 (L). VDD 12 P Positive supply voltage Copyright © 2015, Texas Instruments Incorporated Submit Documentation Feedback 3 Product Folder Links: TUSB321AI |
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