PI2121-00-LGIZ

END OF LIFE  PI2121  Series 8 Volt, 24 Amp Full-Function Active ORing Solution Description Features The  PI2121 is a complete full-function Active ORing solution with a high-speed ORing MOSFET controller and a very low on-state resistance MOSFET designed for use in redundant power system architectures. The PI2121 Cool-ORing solution is offered in an extremely small, thermally enhanced 5mm x 7mm LGA package and can be used in low voltage (≤ 5Vbus) high side Active ORing applications. The PI2121 enables extremely low power loss with fast dynamic response to fault conditions, critical for high availability systems. A master/slave feature allows the paralleling of PI2121 solutions for high current Active ORing requirements. • The PI2121, with its 1.5mΩ internal MOSFET provides very high efficiency and low power loss during steady state operation, while achieving highspeed turn-off of the internal MOSFET during input power source fault conditions that cause reverse current flow. The PI2121 provides an active low fault flag output to the system during excessive forward current, light load, reverse current, overvoltage, under-voltage and over-temperature fault conditions. A temperature sensing function indicates a fault if the maximum junction temperature exceeds 160°C. The under-voltage and over-voltage thresholds are programmable via an external resistor divider. • • • • • • • • Integrated High Performance 24A, 1.5mΩ MOSFET Very-small, high density fully-optimized solution providing simple PCB layout. Fast Dynamic Response to Power Source failures, with 160ns reverse current turn-off delay time Accurate sensing capability to indicate system fault conditions Programmable under & over-voltage functions Over temperature fault detection Adjustable reverse current blanking timer Master/Slave I/O for paralleling Active low fault flag output Applications • • • • • N+1 Redundant Power Systems Servers & High End Computing Telecom Systems High-side Active ORing High current Active ORing (≤ 5Vbus) Package Information • 17-pin 5mm x 7mm Thermally Enhanced LGA Package Typical Application: Figure 1: PI2121 High Side Active ORing Picor Corporation • picorpower.com Figure 2: PI2121 input current de-rating based on maximum TJ=150°C vs. ambient temperature PI2121 Rev. 1.2 Page 1 of 21 END OF LIFE  Pin Description Pin Name D Pin Number 1, 15, 16, 17 S 2, 3, 4, 5 SP 6 FT 7 BK 8 SL 9 VC 10 GND 11 OV 12 UV 13 SN 14 Description Drain- The Drain of the internal N-channel MOSFET, connect to the output load. Source-The source of the internal N-channel MOSFET, connect to the input power source bus voltage. Positive Sense Input & Clamp: Connect SP pin to the S pin. The polarity of the voltage difference between SP and SN provides an indication of current flow direction through the MOSFET. Fault State Output: This open collector pin pulls low when a fault occurs. Fault logic inputs are VC Under-Voltage, Input Under-Voltage, Input Over-Voltage, Forward Over-Current, light load, reverse current, and Over-Temperature. Leave this pin open if unused. Blanking timer Input-Output: Connect a resistor from BK to GND to set the blanking time for the Reverse Comparator function. To configure in slave mode, connect BK to VC. To configure in master mode with the fastest turn-off response connect BK directly to GND. Slave Input-Output: This pin is used for paralleling multiple PI2121 solutions in high power applications. When the PI2121 is configured as the Master, this pin functions as an output capable of driving up to 10 SL pins of slaved PI2121 devices. It serves as an input when the PI2121 is configured in slave mode. Input Supply Pin: This pin is the supply pin for the control circuitry and gate driver. Connect a 1μF capacitor between VC pin and the GND pin. Voltage on this pin is limited to 15.5V by an internal shunt regulator in high auxiliary voltage applications. For high voltage auxiliary supply applications connect a shunt resistor between VC and the auxiliary supply. Ground: This pin is ground for the gate driver and control circuitry. Input Over Voltage Input: The OV pin is used to detect an input source over-voltage condition in ground referenced applications. When the OV pin voltage crosses the OV threshold, the FT pin pulls low indicating a fault condition. The input voltage OV threshold is programmable through an external resistor divider. Connect OV to GND to disable this function. Input Under-Voltage Input: The UV pin is used to detect an input source under-voltage condition in ground referenced applications. When the UV pin voltage drops below the UV threshold, the FT pin pulls low indicating a fault condition. The input voltage UV threshold is programmable through an external resistor divider. Connect UV to VC to disable this function. Negative Sense Input & Clamp- Connect SN to D pin. The polarity of the voltage difference between SP and SN provides an indication of current flow direction through the MOSFET. Package Pin-out 17 Pin LGA (5mm x 7mm) Top view Picor Corporation • picorpower.com PI2121 Rev. 1.2 Page 2 of 21 END OF LIFE  Absolute Maximum Ratings Drain-to-Source Voltage (VDS) Source Current (IS ) Continuous Source Current (IS ) Pulsed (10μs) 8V @ 25°C 24A 100A Thermal Resistance RθJA(3) 54°C/W Thermal Resistance RθJ-PCB(3) VC 14°C/W -0.3V to 17.3V / 40mA -0.3V to 8.0V / 10mA SP, SN, OV, SL -0.3V to 17.3V / 10mA UV,BK, FT GND Storage Temperature Operating Junction Temperature Lead Temperature (Soldering, 20 sec) ESD Rating -0.3V / 5A peak -65oC to 150oC -40oC to Over Temperature Fault (TFT) 260oC 1kV HBM Electrical Specifications Unless otherwise specified: -40°C < TJ < 125°C, VC =12V, CVc = 1uF, CSL = 10pF Parameter Symbol Min VVC-GND 4.5 Typ Max Units Conditions 13.2 V 3.7 4.2 mA 15.5 16 V No VC limiting resistors Normal Operating Condition, No Faults IVC=10mA 7.5 Ω Delta IVC=10mA 4.5 V VC Supply Operating Supply Range (4) Quiescent Current IVC VC Clamp Voltage VVC-CLM VC Clamp Shunt Resistance RVC VC Under-voltage Rising Threshold VVCUVR VC Under-voltage Falling Threshold VVCUVF VC Under-voltage Hysteresis 15 4.3 4.0 VVCUV-HS 4.15 V 150 mV Internal N-Channel MOSFET Drain-to-Source Breakdown Voltage Source Current Continuous Drain Leakage Current BVDSS 8 V IS 24 A IDLK 10 μA Drain-to-Source On Resistance RDSon 1.5 2.0 mΩ Body Diode Forward Voltage Vf-BD 0.7 1.0 V Under-Voltage Rising Threshold VUVR 500 540 mV Under-Voltage Falling Threshold VUVF In OFF state, ID=250µA , Tj=25°C; Figure 10, page 11 In ON state, Tj=25°C In OFF state, VDS=8V, Tj=25°C In ON state, IS=20A, Tj=25°C VC-V(S) ≥ 5V In ON state, IS=4A, Tj=25°C FAULT Under-Voltage Threshold Hysteresis Under-Voltage Bias Current VUV-HS IUV Over-Voltage Rising Threshold VOVR Over-Voltage Falling Threshold VOVF Picor Corporation • picorpower.com 440 475 mV 25 mV -1 500 440 475 PI2121 1 μA 540 mV mV Rev. 1.2 Page 3 of 21 END OF LIFE  Electrical Specifications Unless otherwise specified: -40°C < TJ < 125°C, VC =12V, CVc = 1uF, CSL = 10pF Parameter Symbol Min Typ Max Units Conditions FAULT (Continued) Over-Voltage Threshold Hysteresis VOV-HS Over-Voltage Bias Current IOV Fault Output Low Voltage VFTL Fault Output High Leakage Current IFT-LC Fault Delay Time tFT-DEL Over Temperature Fault (1) Over Temperature Fault Hysteresis(1) 25 -1 0.2 20 40 mV 1 μA 0.5 V IFT=2mA, VC>3.5V 10 μA VFT=14V 60 μs Includes output glitch filter TFT 160 °C TFT-HS -10 °C DIFFERENTIAL AMPLIFIER AND COMPARATORS Common Mode Input Voltage VCM -0.1 5.5 V VSP-SN -50 125 mV SP-SN SP Input Bias Current ISP -50 μA SP=SN=1.25V SN Input Bias Current ISN 8 μA SP=SN=1.25V SN Voltage VSN 5.5 V SP=0V -2 mV VCM = 3.3V @ 25°C 5 mV Differential Operating Input Voltage -37 3.5 -6 SP to GND & SN to GND Reverse Comparator Threshold VRVS-TH -10 Reverse Comparator Hysteresis VRVS-HS 2 Reverse to Slave Low Delay Time tRVS-MS 160 200 ns Reverse to Slave Low Delay Time tRVS-SL 530 700 ns Forward Comparator Threshold VFWD-TH 2 6 9 mV VCM = 3.3V @ 25°C VSP-SN = -50mV step, VBK=0 (minimum blanking) VSP-SN = -50mV step, VBK= VVC (maximum blanking) VCM = 3.3V @ 25°C Forward Comparator Hysteresis Forward Over Current Comparator Threshold Forward Over Current Comparator Hysteresis SLAVE VFWD-HS -5 -2 mV VCM = 3.3V @ 25°C VOC-TH 60 70 mV VCM = 3.3V @ 25°C VOC-HS -8 -4 mV VCM = 3.3V @ 25°C 66 ISL -60 -25 μA Slave Output Voltage High VSL-Hi 4.3 5.5 V Slave Output Voltage Low VSL-Lo 0.2 0.5 V VSL = 1V, Normal Operating Conditions, No Faults Normal Operating Conditions, No Faults ISL=4mA Slave Hold-off Voltage at VC UVLO VSL-UV 0.7 1 V ISL=5μA,1.5V