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Details, datasheet, quote on part number:TPS2341
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Datasheet text preview:
TPS2341
SLUS513A - MAY 2003 - REVISED JULY 2004
DUAL SLOT PCI HOT PLUG POWER CONTROLLER WITH I2C INTERFACE
FEATURES D 12-V, -12-V, 3.3-V, 5-V Main Power Switching D D D D D D D D D D
and Auxiliary 3.3-V Power Switching 12-V, -12-V And Auxiliary 3.3-V Power FETs Hot-Swap Protection and Control of All Supplies Overcurrent Protection for All Supplies Isolation of Any Load Fault in One Slot from Any Other Slot Undervoltage Monitoring for the Main 12-V, 3.3-V, 5-V and Auxiliary 3.3-V Supplies Power Fault Latching Overtemperature Shutdown I2C Interface for Power Control, Power Status, Slot Control And Slot Status Compliant To PCI And PCI-X Hot Plug Specifications One TPS2341 Supports Two Slots FETs, allowing each FET to ramp the load voltage linearly. Each main supply can be programmed for a desired ramp rate by selecting a gate capacitor for the power FET for that supply. The power control circuits also monitor load current and latch off that slot if the load current exceeds a programmed maximum value. In addition, once the 12-V, the 5-V, and the 3.3-V FET are fully enhanced, the load voltage is monitored. If the load voltage drops out of specification limit after these FETs are fully enhanced, the slot latches off. This feature provides another level of protection from load fault. The auxiliary power control circuit provides power to the 3VAUXx pins through the 3.3-V main supply when it is above 3.0 V, and through the 3.3-V standby input supply when the 3.3-V main supply drops below 3.0 V. The TPS2341 contains power FETs for 12 V at 500 mA, -12 V at 100 mA, and auxiliary 3.3 V at 375 mA for each slot. These power FETs are short-circuit protected, slew rate controlled, and over-temperature protected. The serial interface communicates with a slot controller using the I2C serial protocol. The interface communicates with the slot, and mechanical switches with individual, dedicated lines. The interface operates from the 3.3-V auxiliary power, but inputs are 5-V tolerant. Mechanical switch inputs have internal pull-up and hysteresis. The serial interface controls slot power, and monitors board, power fault, and switch input status.
DESCRIPTION
The TPS2341 contains main supply power control, auxiliary supply power control, power FETs for 12-V, -12-V and auxiliary 3.3-V supplies, and a serial interface for communications with and control of slots. Each TPS2341 contains supply control and switching for two slots. The main power control circuits start with all supplies off and hold all supplies off until power to the TPS2341 is valid on all positive supplies. When power is requested, the control circuit applies constant current to the gates of the power
PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters.
Copyright 2003, Texas Instruments Incorporated
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TPS2341
SLUS513A - MAY 2003 - REVISED JULY 2004
absolute maximum ratings over operating free-air temperature (unless otherwise noted)
Input voltage range: P12VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.5 V to 15 V M12VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -15.0 V to 0.5 V All others . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.5 V to 6 V
P12VO, 5V3VG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.5 V to VP12VIN +0.5 V P12VG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.5 V to 28 V M12VO, M12VG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . VM12VIN-0.5 V to 0.5 V Output current pulse: P12VO (DC internally limited) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 A M12VO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.8 A Operating virtual temperature range, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 40°C to 125°C Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 55°C to 150°C Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260°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. NOTE: All voltages are respect to DGND.
Output voltage range:
electrical characteristics over recommended operating temperature range, P12VINA = P12VINB = 12 V, V5IN = 5 V, V3IN = 3.3 V, DIGVCC = 3.3 V, M12VINA = M12VINB = -12 V, 3VSTBYIN = 3.3 V, all outputs unloaded, -40°C to 85°C, TA = TJ (unless otherwise noted)
5-V/3.3-V Supply
PARAMETER 5VOC input threshold voltage 5VOC Input threshold voltage 3VOC Input threshold voltage 3VOC input threshold voltage 5VISA, 5VISB voltage fault threshold 5VISA, 5VISB voltage fault minimum captured pulse 5VSA, 5VSB input bias current 5VISA, 5VISB input bias current 5VISA, 5VISB bleed current 3VISA, 3VISB voltage fault threshold 3VISA, 3VISB voltage fault minimum captured pulse time 3VSA, 3VSB input bias current 3VISA, 3VISB input bias current 3VISA, 3VISB bleed current 5V3VGA, 5V3VGB charge current 5V3VGA, 5V3VGB discharge current 5V3VGA, 5V3VGB good threshold 5V3VGA, 5V3VGB turn-off time P12VIN = 12V C5V3VG = 0.022 µF, 5V3VG falling from 90% to 10% 9.5 PWRENx = high PWRENx = high PWRENx = low, 3VISx = 3.3 V 5 14 -100 250 10 20 200 11 1 11.5 20 25 PWRENx = high PWRENx = high PWRENx = low, 5VISx = 5 V 5 2.70 After P12VG and 5V3VG good -100 250 10 2.86 75 20 3.05 100 100 TEST CONDITIONS ROCSET = 6.04 k, ROCSET = 6.04 k ROCSET = 6.04 k, ROCSET = 6.04 k After P12VG and 5V3VG good TA = TJ = 25°C TA = TJ = 25°C MIN 35 34 41 37 4.3 TYP 42 42 52 52 4.65 75 MAX 49 49 60 62 4.86 100 100 UNIT mV mV mV mV V ns µA mA V ns µA mA µA mA V µs
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TPS2341
SLUS513A - MAY 2003 - REVISED JULY 2004
electrical characteristics over recommended operating temperature range, P12VINA = P12VINB = 12 V, V5IN = 5 V, V3IN = 3.3 V, DIGVCC = 3.3 V, M12VINA = M12VINB = -12 V, 3VSTBYIN = 3.3 V, all outputs unloaded, -40°C to 85°C, TA = TJ (unless otherwise noted) (continued)
+12-V Supply / -12-V Supply
PARAMETER +12-V Internal N-channel MOSFET on-resistance TEST CONDITIONS PWREN = HIGH, TA = TJ = 25°C PWREN = HIGH, -12-V Internal N-channel MOSFET on-resistance PWREN = HIGH, TA = TJ = 25°C PWREN = HIGH, +12-V overcurrent threshold -12-V overcurrent threshold P12VOA, P12VOB fault threshold voltage P12VOA, P12VOB voltage fault minimum captured pulse time M12VGA, M12VGB gate charge current M12VGA, M12VGB gate discharge current P12VGA, P12VGB, charge current P12VGA, P12VGB, discharge current P12VGA, P12VGB good threshold PWREN = HIGH to M12VO = -10.4 V, CM12VG = 0.022 µF, RL = 120 CM12VO = 50 µF PWREN = HIGH to P12VO = 11.4 V, C12PVG = 0.022 µF, RL = 24 CP12VO = 200 µF PWREN = LOW to P12VO = 0.6 V, CP12VG = 0.022 µF PWREN = LOW to M12VO = -0.6 V, CM12VG = 0.022 µF 17.5 Derived from charge pump 2 -23 ROCSET = 6.04 k, ROCSET = 6.04 k ROCSET = 6.04 k, ROCSET = 6.04 k After P12VG and 5V3VG good TA = TJ = 25°C ID = 0.5 A ID = 0.5 A ID = 0.1 A ID = 0.1 A TA = TJ = 25°C MIN TYP 0.18 MAX 0.3 0.4 0.5 0.75 0.9 0.79 0.73 0.20 0.18 9.50 0.94 0.94 0.24 0.24 10.30 75 -20 200 9 100 19.0 15 20.5 20 ms 30 75 µs µs mA 14 1.09 1.12 0.28 0.30 11.15 100 -13 A A A A V ns µA mA µA mA V UNIT
Turn-on time
1.5 1.5 -20 10
3.5 3.5
Turn-off time
M12VOA, M12VOB bleed current P12VOA, P12VOB bleed current
noise filter
PARAMETER Ignored spike from overcurrent Latched spike from overcurrent TEST CONDITIONS MIN TYP 250 500 MAX UNIT ns ns
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