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TPS2346 Datasheet(PDF) 2 Page - Texas Instruments |
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TPS2346 Datasheet(HTML) 2 Page - Texas Instruments |
2 / 30 page TPS2346 SLUS529 – MAY 2002 2 www.ti.com description (continued) Fully programmed sequencing control ramps the back-end plane voltages in order, and during shutdown from a healthy state, turns off the back-end supplies in the reverse order. In addition, electronic circuit breakers provide continuous protection for the system supplies during the plug-in operation. The TTL/CMOS-compatible ENABLE input and the board power good signal (PG) can interface directly to the individual backplane slot control and status signals. A precharge pin (PRECHG) provides a 1-V bias supply for the I/O signals. absolute maximum ratings over operating free-air temperature (unless otherwise noted)† Input voltage range, VIN1, VIN2, VIN3, ENABLE, PG, PRECHG –0.3 V to 15 V . . . . . . . . . . . . . . . . . . . . . . . . . VS1, VS2, VS3, CS1, CS2, CS3 –0.3 V to VIN +0.3 V of corresponding channel . . . . . CPUMP, GATE1, GATE2, GATE3 –0.3 V to 25 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . VIN4, VS4, GATE4, CS4 –15 V to 0.3 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . IRAMP –0.3 V to VI(VIN1) +0.3 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Operating junction temperature range, TJ –55 °C to 150°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Storage temperature range, Tstg –65 °C to 150°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Lead temperature soldering 1,6 mm (1/16 inch) from case for 10 seconds 300 °C . . . . . . . . . . . . . . . . . . . . . . . . † Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. All voltages are with respect to GND. Currents are positive into, and negative out of the specified terminal. AVAILABLE OPTIONS T PACKAGED DEVICES TA TSSOP (PW) –40 _C to 85_C TPS2346PW {The PW package is available taped and reeled. Add TR suffix to device type (e.g. TPS2346PWTR) to order quantities of 2,000 devices per reel and 90 units per tube. 1 2 3 4 5 6 7 8 9 10 11 12 24 23 22 21 20 19 18 17 16 15 14 13 GATE1 VS1 VIN1 CS1 IRAMP ENABLE RGND PRECHG CS3 VIN3 VS3 GATE3 GATE2 VS2 VIN2 CS2 CPUMP CPGND AGND PG CS4 VIN4 VS4 GATE4 PW PACKAGE (TOP VIEW) |
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Descripción similar - TPS2346 |
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