MIC2593-2BTQ TR Micrel Inc, MIC2593-2BTQ TR Datasheet
MIC2593-2BTQ TR
Specifications of MIC2593-2BTQ TR
MIC2593-2BTQTR
Related parts for MIC2593-2BTQ TR
MIC2593-2BTQ TR Summary of contents
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... MIC2593-2YTQ 100mV Note: Contact factory for availability of the MIC2593-5YTQ option that disables the 100mV fast-trip threshold. LITTLE FOOT is a registered trademark of Siliconix Incorporated. Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 ( September 2008 Features • ...
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... R 30 SENSE *R 12VGATEB 29 Si4420DY 0.01µF 28 0.1µF R SENSE 3VGATEB Si4420DY GATE 0.01µF 46 MIC2593 PCI Connector PCI Bus 3.3VAUXA 375mA 3.3V, 7.6A 12V, 0.5A –12V, 0.1A 5V, 5A 3.3V, 7.6A 12V, 0.5A –12V, 0.1A 3.3VAUXB PCI Bus PCI Connector M9999-092208 ...
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... MOSFET switch for +12V Slot A. Pin 32 is the input to the drain side of the internal MOSFET switch for +12V Slot B. These two pins must ultimately connect to each other within 10cm of the MIC2593. An undervoltage lockout circuit (UVLO) prevents the switches from turning on while this input is less than its lockout threshold ...
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... Standby Input Voltage: Required to support PCI VAUX output. Additionally, the SMBus logic and internal registers run off of VSTBY[A/B] to ensure that the MIC2593 is accessible during standby modes. A UVLO circuit prevents turn-on of this supply until VSTBY[A/B] rises above its UVLO threshold. Both pins must be connected together externally at the IC ...
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... STAT[A/B] and/or CS registers. This pin requires an external pull-up resistor STBY IC Ground Connections: Tie directly to the system’s analog ground plane directly at the device. 5 MIC2593 . t is the amount of time for which a slot FLT M9999-092208 ...
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... GATE MIC2593 Max Units mA 2.0 mA 2.0 mA 0.7 mA –2 2.75 V 4.3 V – 10.8 V –10.2 V 2.9 V 4.7 V 2.9 ...
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... Increasing, each slot J (6) T Decreasing, each slot J (6) T Increasing, both slots J (6) T Decreasing, both slots 500mA 125° 100mA 125° 375mA 125° MIC2593 Min Typ Max Units 1.25 V 1.20 1.30 2.5 µA 1.80 5.0 22 µ 113 mV 90 135 (5) 0.5 µ ...
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... Delay from 3V[A/B] overcurrent-limit to t PROP(3VFAULT) FAULT Output Delay from 5V[A/B] overcurrent-limit to t PROP(5VFAULT) FAULT Output t ON[A/B], AUXEN[A/B] Pulse Width W t MIC2593 Power-On Reset Time after POR V becomes valid STBY SMBus Timing, Note 5 t SCL (Clock) Period 1 t Data In Set-Up Time to SCL HIGH 2 ...
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... Specification for packaged product only. 5. Schottky diode clamp used for –12VIN[A/B] power bus. See the typical applications circuit. 6. Parameters guaranteed by design. Not 100% production tested. September 2008 Condition Figure 1 Start Condition, Figure 1 Start Condition, Figure 1 9 MIC2593 Min Typ Max Units ns 300 ns 100 ...
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... I I OUT(AUX) OUT(AUX) 0 Amps Figure 4. VAUX Current Limit Threshold September 2008 Figure 1. SMBus Timing 6V Must Trip I LIM(AUX THFAST V THLIMIT 3VGATE t OFF3 Figure 3. 3V Current Limit Response Timing I SC(TRAN) I OUT(AUX) t SC(TRAN) 0 Amps Figure 5. VAUX Current Limit Response Timing MIC2593 1V I LIM(AUX) M9999-092208 ...
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... HPl for power control while continuing to use the SMI for access to all but the power control registers. In addition to the basic power control features of the MIC2593 accessible by the HPI, the SMI also gives the host access to the following information from the part: 1. Fault conditions occurring on each supply. ...
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... ONA and ONB (or the MAINA and MAINB bits in 250V/s the Control Registers) inputs should be de-asserted. If this 25V/s is not done, the MIC2593 will assert /FAULT and also /INT if interrupts are enabled, when the MIC2593 detects an undervoltage condition on a supply input. Circuit Breaker Functions ...
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... A 160°C overtemperature overtemperature bit (OT_INT) in the Common Status Register. Output Power-Good Status For the MIC2593, “Power-is-Good” is valid on a slot when ) of FLT the outputs of the four MAIN supplies (12V, –12V, 5V, and 3.3V) and the auxiliary supply output are all above their respective power-good thresholds specified in the “ ...
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... Micrel, Inc. General Purpose Input (GPI) Pins Two pins on the MIC2593 are available for use as GPI pins. The logic state of each of these pins can be determined by polling Bits [4:5] of Common Status Register. Both of these inputs are compliant to 3.3V. If unused, connect the GPI[A/B] pins to GND. ...
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... To perform a Receive_Byte operation, the host sends an address byte to select the slave MIC2593, with the R/W bit set to the high (read) state, and then retrieves the data byte. Figures 9 through 11 show the formats for these data read and data write procedures ...
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... CLK MIC2593 Slave Address DATA R/W = WRITE START CLK DATA CLK September 2008 Table 4. MIC2593 Register Addresses Command Byte to MIC2593 R/W = WRITE ACKNOWLEDGE ACKNOWLEDGE Master to slave transfer, i.e., DATA driven by master. Figure 9.WRITE_BYTE Protocol Command Byte to MIC2593 MIC2593 Slave Address ACKNOWLEDGE ...
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... Reserved MAINB Operation 1 = Power-is-Good (VAUXB Output is above its UVLO threshold Power-is-Good (MAINB Outputs are above their UVLO thresholds) Always read as zero Always read as zero Always read as zero Always read as zero 0 = Off Off MIC2593 D[0] read/write AUXA D[0] read/write AUXB M9999-092208 ...
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... If an overcurrent has occurred on both a MAIN output and the VAUX output of slot A, both ONA and AUXENA of the slot must go low to reset FAULTA. Neither the FAULTA bit nor the /FAULTA pin is active when the MIC2593 power paths are controlled by the System Management Note 2. ...
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... If an overcurrent has occurred on both a MAIN output and the VAUX output of slot B, both ONB and AUXENB of the slot must go low to reset FAULTB. Neither the FAULTB bit nor the /FAULTB pin is active when the MIC2593 power paths are controlled by the System Management Note 2. ...
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... This bit is only set if a UVLO condition occurs while the ON[A/B] pin is asserted or the MAIN[A/B] control bits are set Die Temp < 160° Fault: Die Temp > 160°C Set if a fault occurs as a result of theMIC2593’s die temperature exceeding160°C. Undefined MIC2593 D[0] ...
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... The current limit threshold voltage (i.e., the “trip point”) for the MIC2593 may be as low as 35mV, which would equate to a sense resistor value of 35mV/I Carrying the numbers through for the case where the ...
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... In MIC2593 applications, the gates of the external MOSFETs are driven from the +12V input to the MIC2593 controller. That supply may well be at 12V + (5% x 12V) = 12.6V. At the same time, if the output of the MOSFET (its source) is suddenly shorted to ground, the gate-source voltage will go to (12.6V – ...
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... If the output is connected to a 0.60Ω load, the output current from the MOSFET for the slot in question will be regulated to 5.0A for 50ms before the MIC2593 circuit breaker trips. During that time, the dissipation in the MOSFET is given by: ...
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... Fair-Rite Products Type 2743019447 Figure 14. Filter Circuit for Noisy Supplies It is theoretically possible that high-amplitude, HF noise reflected back into one or both of the MIC2593’s –12V outputs could interfere with proper device operation, although such noisy loads are unlikely to occur in the real supplies is AUX world ...
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... Schottky diode. A diode rated at 1 amp and 20V to 40V as shown in our application schematic diagram is suggested. The diode’s anode should be physically placed directly at the –12V input to the MIC2593, and its cathode should have as short a path as possible back to the part’s ground. A good SMT part for this application is a type MBRS140T3 (1A, 40V) ...
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... Purchaser’s use or sale of Micrel Products for use in life support appliances, devices or systems is a Purchaser’s own risk and Purchaser agrees to fully September 2008 48-Pin TQFP (TQ) indemnify Micrel for any damages resulting from such use or sale. © 2002 Micrel, Incorporated MIC2593 M9999-092208 ...