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TPS650243 Datasheet(PDF) 9 Page - Texas Instruments |
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TPS650243 Datasheet(HTML) 9 Page - Texas Instruments |
9 / 33 page www.ti.com DEVICE INFORMATION PIN ASSIGNMENTS 24 23 22 21 20 19 18 17 910111213141516 3231302928272625 VDCDC3 PGND3 L3 VINDCDC3 VINDCDC1 L1 PGND1 VDCDC1 EN_Vdd_alive MODE DEFDCDC2 PWRFAIL EN_DCDC1 EN_DCDC2 EN_DCDC3 EN_LDO 1 2 3 4 5 6 7 8 TPS65024 TPS650240 ,, TPS650241 TPS650242, TPS650243 TPS650244, TPS650245 SLVS774A – JUNE 2007 – REVISED DECEMBER 2007 TERMINAL FUNCTIONS TERMINAL I/O DESCRIPTION NAME NO. SWITCHING REGULATOR SECTION AGND1 31 Analog ground connection. All analog ground pins are connected internally on the chip. AGND2 13 Analog ground connection. All analog ground pins are connected internally on the chip. PowerPad – Connect the power pad to analog ground. VINDCDC1 5 I Input voltage for VDCDC1 step-down converter. This must be connected to the same voltage supply as VINDCDC2, VINDCDC3 and VCC. L1 6 Switch pin of VDCDC1 converter. The VDCDC1 inductor is connected here. VDCDC1 8 I VDCDC1 feedback voltage sense input, connect directly to VDCDC1 PGND1 7 Power ground for VDCDC1 converter VINDCDC2 28 I Input voltage for VDCDC2 step-down converter. This must be connected to the same voltage supply as VINDCDC1, VINDCDC3 and VCC. L2 27 Switch pin of VDCDC2 converter. The VDCDC2 inductor is connected here. VDCDC2 25 I VDCDC2 feedback voltage sense input, connect directly to VDCDC2 PGND2 26 Power ground for VDCDC2 converter VINDCDC3 4 I Input voltage for VDCDC3 step-down converter. This must be connected to the same voltage supply as VINDCDC1, VINDCDC2 and VCC. L3 3 Switch pin of VDCDC3 converter. The VDCDC3 inductor is connected here. VDCDC3 1 I VDCDC3 feedback voltage sense input, connect directly to VDCDC3 PGND3 2 Power ground for VDCDC3 converter Vcc 29 I Power supply for digital and analog circuitry of DCDC1, DCDC2 and DCDC3 DC-DC converters. This must be connected to the same voltage supply as VINDCDC3, VINDCDC1 and VINDCDC2. DEFDCDC1 9 I Input signal indicating default VDCDC1 voltage, 0 = 2.80V, 1 = 3.3V This pin can also be connected to a resistor divider between VDCDC1 and GND. In this case the output voltage of the DCDC1 converter can be set in a range from 0.6V to VINDCDC1 DEFDCDC2 22 I Input signal indicating default VDCDC2 voltage, 0=1.8V, 1=2.5V This pin can also be connected to a resistor divider between VDCDC2 and GND. In this case the output voltage of the DCDC2 converter can be set in a range from 0.6V to VINDCDC2. Copyright © 2007, Texas Instruments Incorporated Submit Documentation Feedback 9 Product Folder Link(s): TPS650240 TPS650241 TPS650242 TPS650243 TPS650244 TPS650245 |
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