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TPS65185x Datasheet(PDF) 3 Page - Texas Instruments |
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TPS65185x Datasheet(HTML) 3 Page - Texas Instruments |
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3 / 61 page  37 VDDH_IN 24 PWR_GOOD 38 N/C 23 PBKG 39 N/C 22 PWRUP 40 VB_SW 21 N/C 41 PGND1 20 N/C 42 VB 19 N/C 43 VPOS_IN 18 SDA 44 VPOS 17 SCL 45 VIN3P3 16 VCOM_PWR 46 V3P3 15 N/C 47 TS 14 VCOM 48 AGND2 13 N/C Not to scale Thermal Pad 3 TPS65185, TPS651851 www.ti.com SLVSAQ8E – FEBRUARY 2011 – REVISED FEBRUARY 2017 Product Folder Links: TPS65185 TPS651851 Submit Documentation Feedback Copyright © 2011–2017, Texas Instruments Incorporated 5 Description (continued) Accurate back-plane biasing is provided by a linear amplifier that can be adjusted from 0 V to –5.11 V with 9-bit control through the serial interface; it can source or sink current depending on panel condition. The TPS65185x supports automatic panel kickback voltage measurement, which eliminates the need for manual VCOM calibration in the production line. The measurement result can be stored in non-volatile memory to become the new VCOM power-up default value. TPS65185 is available in two packages, a 48-pin 7-mm × 7-mm2 VQFN (RGZ) with 0.5-mm pitch, and a 48-pin 6-mm × 6-mm2 VQFN (RSL) with 0.4-mm pitch. The TPS651851 is available in a 48-pin 6-mm × 6-mm2 VQFN (RSL) with 0.4-mm pitch. 6 Pin Configuration and Functions RGZ Package and RSL Package 48-Pin VQFN With Exposed Thermal Pad Top View Pin Functions PIN I/O DESCRIPTION NAME NO. AGND1 8 — Analog ground for general analog circuitry. AGND2 48 — Reference point to external thermistor and linearization resistor. DGND 6 — Digital ground. Connect to ground plane. INT 2 O Open drain interrupt pin (active low). INT_LDO 7 O Filter pin for 2.7-V internal supply. N/C 11, 13, 20, 38, 39 — Not internally connected. PBKG 22 — Die substrate. Connect to the VN pin (–16 V) with a short, wide trace. A wide copper trace improves heat dissipation. PGND1 41 — Power ground for DCDC1. PGND2 32 — Power ground for CP1 (VDDH) and CP2 (VEE) charge pumps. |
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