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TPS65140PWPRG4 Datasheet(PDF) 6 Page - Texas Instruments |
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TPS65140PWPRG4 Datasheet(HTML) 6 Page - Texas Instruments |
6 / 32 page TPS65140, TPS65141 TPS65145 SLVS497E – SEPTEMBER 2003 – REVISED NOVEMBER 2012 www.ti.com Terminal Functions TERMINAL I/O DESCRIPTION NO. NAME NO. (RGE) (PWP) VIN 4 7 I Input voltage pin of the device. Enable pin of the device. This pin should be terminated and not be left floating. A logic EN 24 3 I high enables the device and a logic low shuts down the device. Compensation pin for the main boost converter. A small capacitor is connected to this COMP 22 1 pin. Open drain output indicating when all outputs VO1, VO2, VO3 are within 10% of their PG 10 13 O nominal output voltage. The output goes low when one of the outputs falls below 10% of their nominal output voltage. Enable pin of the linear regulator controller. This pin should be terminated and not be ENR 23 2 I left floating. Logic high enables the regulator and a logic low puts the regulator in shutdown. C1+ 16 19 Positive terminal of the charge pump flying capacitor C1- 17 20 Negative terminal of the charge pump flying capacitor DRV 18 21 O External charge pump driver FB2 21 24 I Feedback pin of negative charge pump REF 20 23 O Internal reference output typically 1.23 V Feedback pin of the linear regulator controller. The linear regulator controller is set to a FB4 2 5 I fixed output voltage of 3.3 V or 3 V depending on the version. BASE 3 6 O Base drive output for the external transistor GND 11, 19 14, 22 Ground PGND 7, 8 10, 11 Power ground FB3 12 15 I Feedback pin of positive charge pump OUT3 13 16 O Positive charge pump output Negative terminal of the charge pump flying capacitor and charge pump MODE pin. If the flying capacitor is connected to this pin, the converter operates in a voltage tripler C2-/MODE 15 18 mode. If the charge pump needs to operate in a voltage doubler mode, the flying capacitor is removed and the C2-/MODE pin needs to be connected to GND. Positive terminal for the charge pump flying capacitor. If the device runs in voltage C2+ 14 17 doubler mode, this pin needs to be left open. Supply pin of the positive, negative charge pump, boost converter, and gate drive circuit. This pin needs to be connected to the output of the main boost converter and SUP 9 12 I cannot be connected to any other voltage source. For performance reasons, it is not recommended for a bypass capacitor to be connected directly to this pin. FB1 1 4 I Feedback pin of the boost converter SW 5, 6 8, 9 I Switch pin of the boost converter PowerPAD The PowerPAD or exposed thermal die needs to be connected to power ground pins ™ /Thermal (PGND) Die 6 Submit Documentation Feedback Copyright © 2003–2012, Texas Instruments Incorporated Product Folder Links: TPS65140 TPS65141 TPS65145 |
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