|
Details, datasheet, quote on part number:TPS2340APFPR
| |
| Part: | TPS2340APFPR |
| Category: | Power Management => Power Distribution/Switches => Hot-Swap Controllers => External FET |
| Description: | ti TPS2340A, Dual Slot Pci And Pcix 1.0 Hot-plug Power Controller |
| Company: | Texas Instruments, Inc. |
| Datasheet: | Download TPS2340APFPR datasheet File size : 378 kB |
| Request For quote: | Find where to buy TPS2340APFPR
|
| |
Datasheet text preview:
TPS2340A
SLUS528A MARCH 2002 REVISED AUGUST 2002
DUAL SLOT PCI HOT PLUG POWER CONTROLLER
FEATURES D 12-V, 12-V, 3.3-V, 5-V Main Power Switching D D D 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 Slot Status Readout with Open-Drain LED Drivers Mechanical Switch Inputs for Attention Request and Electrical Interlock Serial Interface for Power Control, Power Status, Slot Control and Slot Status Compatible With 33-MHz, 66-MHz, and 133-MHz Bus Speeds Compliant To PCI And PCI-X Hot Plug Specifications One TPS2340A Supports Two Slots gates of the power FETs, allowing each FET to ramp load voltage linearly. Each 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 FETs are fully enhanced, the load voltage is monitored. If load voltage drops out of specification after these FETs are fully enhanced, the slot latches off. This provides another level of protection from load fault. The auxiliary power control circuit switches, ramps, and monitors 3.3-V auxiliary power to each slot. The auxiliary control circuit also controls data switches that connect slot interrupts (power management event [PME] outputs) to the main interrupt PME bus after 3.3-V auxiliary supply is connected. PME is disconnected when a board is turned off or faulted. Each TPS2340A 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 a synchronous serial protocol. The interface communicates with the slot, status LEDs, and mechanical switches with individual, dedicated lines. The interface operates from 3.3-V power but inputs are 5-V tolerant. Status LED drivers are capable of driving 24-mA LEDs via integrated open-drain MOSFETs. Mechanical switch inputs have internal pull-up and hysteresis buffers. The serial interface controls slot power, bus connection, and LED outputs, and monitors board capability, power fault, and switch input status.
DESCRIPTION
The TPS2340A 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 TPS2340A 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 TPS2340A is valid on all positive supplies. When power is requested via the serial interface, the control circuit applies constant current to the
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 2002, Texas Instruments Incorporated
www.ti.com
1
TPS2340A
SLUS528A MARCH 2002 REVISED AUGUST 2002
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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . VM12VIN0.5 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 85°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 1: All voltages are respect to DGND.
Output voltage range:
electrical characteristics over recommended operating temperature range, P12VINA = P12VINB = 12 V, V5IN = 5 V, DIGVCC = 3.3 V, M12VINA = M12VINB = 12 V, 3VAUXI = 3.3 V, all outputs unloaded, TA = TJ (unless otherwise noted)
5-V/3.3-V Supply
PARAMETER 5VOC input threshold voltage 5VISA, 5VISB voltage fault threshold 5VISA, 5VISB voltage fault minimum captured pulse 5VSA input bias current 5VISA, 5VISB input bias current 5VISA, 5VISB bleed current 3VOC Input threshold voltage 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, 5VISx = 5 V 100 100 5 25 250 10 20 200 11 1 11.5 3.5 PWRENx = high PWRENx = high PWRENx = low, ROCSET = 6.04 k After P12VG and 5V3VG good 5VISx = 5 V 100 100 5 53 2.64 250 10 63 2.86 75 TEST CONDITIONS ROCSET = 6.04 k After P12VG and 5V3VG good MIN 43 4.16 TYP 53 4.65 75 MAX 63 4.92 135 100 500 20 72 3.08 135 100 500 20 14.5 UNIT mV V ns µA mA mV V ns µA mA µA mA V µs
2
www.ti.com
TPS2340A
SLUS528A MARCH 2002 REVISED AUGUST 2002
electrical characteristics over recommended operating temperature range, P12VINA = P12VINB = 12 V, V5IN = 5 V, DIGVCC = 3.3 V, M12VINA = M12VINB = 12 V, 3VAUXI = 3.3 V, all outputs unloaded, TA = TJ (unless otherwise noted) (continued)
12-V Supply
PARAMETER +12-V Internal NMOS on resistance on-resistance TEST CONDITIONS PWREN = HIGH, TA = TJ = 25°C PWREN = HIGH, 12-V Internal NMOS on resistance on-resistance +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 P12VIN = 12 V 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 5 19 Derived from charge pump 1.0 25 PWREN = HIGH, TA = TJ = 25°C PWREN = HIGH, ROCSET = 6.04 k ROCSET = 6.04 k After P12VG and 5V3VG good ID = 0.5 A ID = 0.5 A ID = 0.1 A ID = 0.1 A 0.83 0.12 9.50 1.00 0.19 10.80 75 20 200 4.0 100 20.5 15 22 20 ms 60 75 µs µs mA 8.5 MIN TYP 0.18 MAX 0.3 0.4 0.5 0.75 0.9 1.17 0.25 11.15 135 14.5 A V ns µA mA µA mA V UNIT
Turn-on time time
1.5 1.5 20 10
3.5 3.5 5
Turn-off time time
M12VO bleed current P12VO bleed current
input/output control
PARAMETER P12VIN supply current V5IN supply current DIGVCC supply current M12VIN supply current 3VAUXI supply current Overcurrent fault response time DIGVCC start-up threshold voltage DIGVCC stop threshold voltage V5IN start-up threshold voltage V5IN stop threshold voltage P12VIN start-up threshold voltage P12VIN stop threshold voltage 2.60 2.40 4.2 3.8 10.2 9.5 V5IN = 5 V DIGVCC = 3.3 V M12VIN 12 V 3VAUXI = 3.3 V TEST CONDITIONS P12VIN = 12 V MIN TYP 1 1.00 500 250 200 500 2.80 2.55 4.4 4.0 10.3 9.4 MAX 2 2.75 2000 2000 2000 960 2.95 2.80 4.6 4.4 11.2 10.6 V ns µA mA UNIT
www.ti.com
3
|
|
