TPS2340APFPR

Power Dissipation :
Operating Temperature Range : - 40 C to + 85 C
Mounting Style : SMD/SMT
Packaging : Reel
Product : PCI Power Management
Supply Voltage - Max : 13.2 V
Supply Voltage - Min : 10.8 V
Package / Case : HTQFP-80


Description

The TPS2340APFPR belongs to TPS2340A family which 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. The TPS2340APFPR 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. When power is requested via the serial interface, the control circuit applies constant current to the gates of the power FETs, allowing each FET to ramp load voltage linearly. Each supply of TPS2340APFPR can be programmed for a desired ramp rate by selecting a gate capacitor for the power FET for that supply. The auxiliary power control circuit switches, ramps, and monitors 3.3-V auxiliary power to each slot. This provides another level of protection from load fault. 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. 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. 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 features of TPS2340APFPR can be summarized as (1)12-V, 12-V, 3.3-V, 5-V main power switching and auxiliary 3.3-V power switching; (2)12-V, 12-V and auxiliary 3.3-V power FETs; (3)hot-swap protection and control of all supplies; (4)overcurrent protection for all supplies; (5)isolation of any load fault in one slot from any other slot; (6)undervoltage monitoring for the main 12-V, 3.3-V, 5-V and auxiliary 3.3-V supplies; (7)power fault latching; (8)overtemperature shutdown; (9)slot status readout with open-drain LED drivers; (10)mechanical switch inputs for attention request and electrical interlock; (11)serial interface for power control, power status, slot control and slot status; (12)compatible with 33-MHz, 66-MHz, and 133-MHz bus speeds; (13)compliant to PCI And PCI-X hot plug specifications; (14)one TPS2340A supports two slots.

The absolute maximum ratings of TPS2340APFPR are (1)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; (2)output voltage range: 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; (3)output current pulse: P12VO (DC internally limited): 4 A, M12VO: 0.8 A; (4)operating virtual temperature range, TJ: 40°C to 85°C; (5)storage temperature range, Tstg: 55°C to 150°C; (6)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.).

Parameters:

Technical/Catalog Information	TPS2340APFPR
Vendor	Texas Instruments
Category	Integrated Circuits (ICs)
Applications	PCI, PCI-X
Type	Hot-Swap Controller
Package / Case	80-TQFP Exposed Pad, 80-eTQFP, 80-HTQFP
Packaging	Tape & Reel (TR)
Current Limit	-
Internal Switch(s)	No
Operating Temperature	-40°C ~ 85°C
Voltage - Supply	3.3V, 5V, ±12V
Drawing Number	296; 4146925; PFP; 80
Lead Free Status	Lead Free
RoHS Status	RoHS Compliant
Other Names	TPS2340APFPR TPS2340APFPR