| Part Number | TPS2342 |
| Manufacturer | Texas Instruments |
| Title | DUAL SLOT PCI-X 2.0 HOT PLUG POWER CONTROLLER |
| Description | The TPS2342 contains main supply power control, auxiliary supply power control, power FETs for 12-V, −12-V and auxiliary 3.3-V supplies, VIO contr... |
| Features |
D Supports PCI, PCI−X 1.0 and PCI−X 2.0 D Internal Power Switches for –12 V, 12 V, 3.3 V Aux D Control for External Power Switches for 5 V, 3.3 V, and VIo D Overload Protection on All Supplies D Input Under-Voltage Protection for 3.3 V, 5 V, 12 V and VAUX Supplies D Soft Start to Minimize Inrush Cur... |
| File Size | 823.22KB |
| Datasheet |
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TPS2343 : Each TPS2343 contains main supply power control, auxiliary supply power control, power FETs for 12-V, −12-V and auxiliary 3.3-V supplies, VIO control, and digital control for two slots. The main power control circuits start with all supplies off and all outputs are held off until PGOOD is asserted, indicating that system supplies are valid. Then, when power enable is asserted, the control circuit applies constant current to the 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 the appropriate gate capacitor. The TPS2343 monitors load current and regulates peak current to prevent disturbances to the sys.
TPS2345 : The TPS2345 CompactPCIR Hot Swap Power Manager (HSPM) provides highly-integrated supply control of three positive (3.3-V, 5-V, and 12-V) and one negative (–12-V) supply rails with a minimum number of external components. A linear current amplifier (LCA) in each of the four device channels provides closed-loop control of load current during insertion and extraction events. This allows the designer to configure the plug-in card’s maximum inrush slew rate and magnitude according to the requirements of the CompactPCIR Hot Swap Specification PICMG 2.1. TYPICAL APPLICATION CompactPCIR BACKPLANE BACK-END POWER PLANES 12V 5V BD_SEL# HEALTHY# GND R1 0.025 Ω Q1 EARLY VIO C1 C2 0.1 µF 0.1 µF R6 1.
TPS2346 : The TPS2346 Optical Network Hot Swap Power Manager (HSPM) provides highly-integrated supply control of three positive (3.3-V, 5-V, and 5.15-V) and one negative (–5.2-V) supply rails with a minimum number of external components. A linear current amplifier (LCA) in each of the four device channels provides closed-loop control of load current during insertion and extraction events. This allows the designer to configure the plug-in card’s maximum inrush slew rate and magnitude according to the requirements of the system supplies. APPLICATIONS D Hot Swap of ONET Modules D Supply Power-Up/Power-Down Sequencing BACKPLANE BACK–END POWER PLANES 5.15V 5V ENABLE PG GND 3.3 V –5.2 V AD[00] AD[XX:01] .