HIP1011D Data Sheet November 1999 File Number 4725.1 Dual PCI Hot Plug Controller Features The HIP1011D is the first IC available for independent control of two PCI Hot Plug slots. The HIP1011D has all the features and functionality of two single PCI Hot Plug slot controllers such as the HIP1011A but in the same foot print area. • Independent Power Control of 2 PCI Slots The HIP1011D is designed to be physically placed in close proximity to two adjacent PCI slots servicing each independently but reducing layout complexity and placement costs in assembly. It creates two independent power control solutions with discrete power MOSFETs and a few passive components. The four supplies +5V, +3.3V, +12V, and -12V for each slot are independently controlled. There are four integrated current sensing switches for the +12V and -12V and for the +5V and +3.3V supplies overcurrent protection is provided by sensing the voltage across external currentsense resistors. In addition, on-chip references are used to monitor the +5V, +3.3V and +12V outputs for undervoltage conditions. The two PWRON inputs control the state of the switches, one each for slot A and slot B outputs. During an overcurrent condition on any output, or an undervoltage condition on the +5V, +3.3V or +12V outputs, a LOW (0V) is asserted on the associated FLTN output and all associated switches are latched-off. The outputs servicing the adjacent slot are unaffected. • Adjustable Overcurrent Protection for All Eight Supplies The time to FLTN signal going LOW and MOSFET latch off is user determined by a single capacitor from each FLTN pin to ground. This added feature enables the HIP1011D to ignore system noise transients. The FLTN latch is cleared when the PWRON input is toggled low again. During initial power-up of the main VCC supply (+12V), the PWRON input is inhibited from turning on the switches, and the latch is held in the Reset state until the VCC input is greater than 10V. Pinout User programmability of the overcurrent threshold and turnon slew rate is provided. A resistor connected to the OCSET pin programs the overcurrent threshold for both slots. Capacitors connected to the gate pins set the turn-on rate. • Turn-Off Delay Time Adjustability • Internal MOSFET Switches for +12V and -12V Outputs • µP Interface for On/Off Control and Fault Reporting • Provides Fault Isolation • Adjustable Turn-On Slew Rate • Minimum Parts Count Solution • No Charge Pump • 100ns Response Time to Over Current Applications • PCI Hot-Plug Ordering Information PART NUMBER TEMP. RANGE (oC) HIP1011DCA 0 to 70 28 Ld SSOP HIP1011DCA-T 0 to 70 Tape and Reel PKG. NO. M28.15 HIP1011D (SSOP) TOP VIEW M12VO_2 1 28 M12VIN_2 M12VG_2 2 27 3VISEN_2 PWRON_2 3 26 3VS_2 FLTN_2 4 25 5VISEN_2 VSS 5 24 5VS_2 12VG_2 6 23 3V5VG_2 12VO_2 7 22 12VIN_2 12VO_1 8 21 12VIN_1 12VG_1 9 20 3V5VG_1 OCSET 10 19 5VS_1 FLTN_1 11 18 5VISEN_1 PWRON_1 12 1 PACKAGE 17 3VS_1 M12VG_1 13 16 3VISEN_1 M12VO_1 14 15 M12VIN_1 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-INTERSIL or 321-724-7143 | Copyright © Intersil Corporation 1999 HIP1011D Typical Application -12V 5V SLOT 1 5VISEN_1 M12VIN_1 M12G_1 R1 C1 5VS_1 M12VO_1 -12V BUS 3.3V 5V BUS 12V Q1 3V5VG_1 M12VIN_2 M12G_2 3V5VG_2 M12VO_2 5VS_2 Q2 C2 R2 HIP1011D 3.3V BUS +12V BUS C3 5VISEN_2 12VIN_1 12VG_1 3VISEN_1 12VO_1 R3 3VS_1 C4 12VIN_2 12VG_2 Q3 12VO_2 Q4 3VS_2 FROM PWRON_1 SYSTEM CONTROLLER PWRON_2 OCSET R5 R4 VSS FLTN_1 OPT. 3VISEN_2 FLTN_2 C5 C6 OPT. TO SYSTEM CONTROLLER -12V SLOT 2 12V FIGURE 1. 2 3.3V 5V HIP1011D Simplified Schematic (1/2 HIP1011D) 5VREF SET (LOW = FAULT) FAULT LATCH LOW = FAULT COMP FLTN + 4.6V INHIBIT RESET COMP + 2.9V INHIBIT COMP + 10.6V INHIBIT - COMP 12VIN + 12VIN 5VS + 12VIN 3V5VG 12VIN 5VREF 5V ZENER REFERENCE 12VIN POWER-ON RESET COMP + 12VIN - 5VISEN 3VS + - LOW WHEN 12VIN < 10V 3VISEN 12VIN + 12VIN 0.3Ω + COMP 12VIN 100µA VOCSET 12VG OCSET HIGH = FAULT 12VO 12VIN HIGH = SWITCHES ON PWRON M12VIN + + COMP 0.7Ω - GND M12VG M12VIN M12VO FIGURE 2. 3 HIP1011D Pin Descriptions PIN NO. DESIGNATOR FUNCTION DESCRIPTION 15, 28 M12VIN -12V Input 4, 11 FLTN Fault Output 5V CMOS Fault Output; LOW = FAULT. An optional capacitor may be place from this pin to ground to provide additional immunity from power supply glitches. 20, 23 3V5VG 3.3V/5V Gate Output Drive the gates of the 3.3V and 5V MOSFETs. Connect a capacitor to ground to set the start-up ramp. During turn on, this capacitor is charged with a 25µA current source. UV comparator disabled when this pin below 9.6V nominal. 21, 22 12VIN 12V Input 16, 27 3VISEN 3.3V Current Sense Connect to the load side of the current sense resistor in series with source of external 3.3V MOSFET. 17, 26 3VS 3.3V Source Connect to source of 3.3V MOSFET. This connection along with (3VISEN) senses the voltage drop across the sense resistor. 19, 24 5VS 5V Source Connect to source of 5V MOSFET switch. This connection along with (5VISEN) senses the voltage drop across the sense resistor. 18, 25 5VISEN 5V Current Sense Connect to the load side of the current sense resistor in series with source of external 5V MOSFET. 3, 12 PWRON Power On Control Controls all four switches. High to turn switches ON, Low to turn them OFF. 6, 9 12VG 7, 8 12VO 2, 13 M12VG 1, 14 M12VO Switched -12V Output 10 OCSET Overcurrent Set 5 VSS Ground -12V Supply Input. Also provides power to the -12V overcurrent circuitry. 12V supply input for IC and 12VO. Both 12VIns to be connected to a single +12V supply. Gate of Internal PMOS Connect a capacitor between 12VG and 12VO to set the start-up ramp for the +12V supply. This capacitor is charged with a 25µA current source during start-up. UV comparator disabled when this pin >1.4Vnominal. Switched 12V Output Switched 12V output. Rated for 0.5A. Gate of Internal NMOS Connect a capacitor between M12VG and M12VO to set the start-up ramp for the M12V supply. This capacitor is charged with 25µA during start-up. 4 Switched 12V Output. Rated for 100mA. Connect a resistor from this pin to ground to set the overcurrent trip point of all eight switches. All eight over current trips can be programmed by changing the value of this resistor. The default (6.04kΩ, 1%) is compatible with the maximum allowable currents as outlined in the PCI specification. Connect to common of power supplies. HIP1011D Absolute Maximum Ratings Thermal Information 12VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.5V to +14.0V 12VO, 12VG, 3V5VG . . . . . . . . . . . . . . . . . . . .-0.5V to 12VIN +0.5V M12VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -14.0V to +0.5V M12VO, M12VG . . . . . . . . . . . . . . . . . . . . . . VM12VIN-0.5V to +0.5V 3VISEN, 5VISEN . . . . . . . . . . -0.5V to the Lesser of 12VIN or +7.0V Voltage, Any Other Pin. . . . . . . . . . . . . . . . . . . . . . . . -0.5V to +7.0V 12VO Output Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3A M12VO Output Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.8A ESD Classification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2KeV (HBM) Thermal Resistance (Typical, Note 1) θJA (oC/W) SSOP Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95 Maximum Junction Temperature . . . . . . . . . . . . . . . . . . . . . . .150oC Maximum Storage Temperature Range . . . . . . . . . . -65oC to 150oC Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . .300oC (SSOP - Lead Tips Only) Operating Conditions 12VIN Supply Voltage Range . . . . . . . . . . . . . . . . +10.8V to +13.2V 5V and 3.3V Input Supply Tolerances. . . . . . . . . . . . . . . . . . . . . . ±10% 12VO Output Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to +0.5A M12VO Output Current . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to +0.1A Temperature Range (TA) . . . . . . . . . . . . . . . . . . . . . . . . 0oC to 70oC CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. NOTES: 1. θJA is measured with the component mounted on an evaluation PC board in free air. 2. All voltages are relative to GND, unless otherwise specified. Electrical Specifications Nominal 5.0V and 3.3V Input Supply Voltages, 12VIN = 12V, M12VIN = -12V, TA = TJ = 0 to 70oC, Unless Otherwise Specified PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNITS - 8 - A 5V/3.3V SUPPLY CONTROL 5V Overcurrent Threshold IOC5V See Figure 24, Typical Application 5V Overcurrent Threshold Voltage VOC5V_1 VOCSET = 0.6V 33 42 50 mV 5V Overcurrent Threshold Voltage VOC5V_2 VOCSET = 1.2V 70 80 90 mV 5V Undervoltage Trip Threshold V5VUV 4.42 4.65 4.7 V 5V Undervoltage Fault Response Time t5VUV - 110 160 ns 5V Turn-On Time (PWRON High to 5VOUT = 4.75V) tON5V C3V5VG = 0.022µF, C5VOUT = 2000µF, RL = 1Ω - 6.5 - ms 3V Overcurrent Threshold IOC3V See Figure 24, Typical Application - 10 - A 3V Overcurrent Threshold Voltage VOC3V_1 VOCSET = 0.6V 41 52 62 mV 3V Overcurrent Threshold Voltage VOC3V_2 VOCSET = 1.2V 89 98 108 mV 3V Undervoltage Trip Threshold V3VUV 2.74 2.86 2.9 V 3V Undervoltage Fault Response Time t3VUV - 110 160 ns 3V5VG Undervoltage Enable Threshold Voltage V3V5VGenVth - 9.6 - V - 6.5 - ms 11.5 11.8 - V 19 25.0 29 µA 3V Turn-On Time (PWRON High to 3VOUT = 3.00V) 3V5VG Vout High tON3V C3V5VG = 0.022µF, C3VOUT = 2000µF, RL = 0.43Ω Vout_hi_35VG PWRON = High, FLTN = High Gate Output Charge Current IC3V5VG PWRON = High, V3V+5VG = 4V Gate Turn-On Time (PWRON High to 3V5VG = 11V) tON3V5V C3V5VG = 0.033µF, 3V5VG Rising 10% to 90% - 280 - µs Gate Turn-Off Time tOFF3V5V C3V5VG = 0.033µF, 3V5VG Falling 90% to 10% - 2 - µs 5 HIP1011D Electrical Specifications Nominal 5.0V and 3.3V Input Supply Voltages, 12VIN = 12V, M12VIN = -12V, TA = TJ = 0 to 70oC, Unless Otherwise Specified (Continued) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNITS - 0.3 0.35 Ω - 0.35 0.50 Ω +12V SUPPLY CONTROL On Resistance of Internal PMOS rDS(ON)12 PWRON = High, ID = 0.5A, TA = TJ = 25oC TA = TJ = 70oC Overcurrent Threshold IOC12V_1 VOCSET = 0.6V 0.6 0.75 0.9 A Overcurrent Threshold IOC12V_2 VOCSET = 1.2V 1.25 1.50 1.8 A 12V Undervoltage Trip Threshold V12VUV 10.25 10.6 10.8 V Undervoltage Fault Response Time t12VUV - 110 - ns Gate Charge Current IC12VG PWRON = High, V12VG = 10V 19 25.0 29 µA Turn-On Time (PWRON High to 12VG = 1V) tON12V C12VG = 0.033µF, 12VG Falling 90% - 10% - 16 - ms Turn-Off Time tOFF12V C12VG = 0.022µF, 12VG Rising 10% - 90% - 3 - µs - 0.7 1 Ω - 1.0 1.3 Ω -12V SUPPLY CONTROL On Resistance of Internal NMOS rDS(ON)M12 PWRON = High, ID = 0.1A, TA = TJ = 25oC TA = TJ = 70oC Overcurrent Threshold IOC12V_1 VOCSET = 0.6V 0.13 0.18 0.25 A Overcurrent Threshold IOC12V_2 VOCSET = 1.2V 0.23 0.38 0.52 A Gate Output Charge Current ICM12VG PWRON = High, V3VG = -10V 19 25 29 µA Turn-On Time (PWRON High to M12VO = -10.8V) tONM12V CM12VG = 0.033µF, CM12VO = 50µF, RL = 120Ω - 16 - ms Turn-Off Time tOFFM12V CM12VG = 0.033µF, M12VG Falling 90% to 10% - 3 - µs M12VIN Input Bias Current IBM12VIN PWRON = High - 2.5 5 mA 5.3 8 mA CONTROL I/O PINS Supply Current IVCC OCSET Current IOCSET 93 100 107 µA tOC - 500 960 ns VTHPWRON 1.0 1.6 2.1 V - 0.5 0.7 V Overcurrent Fault Response Time PWRON Threshold Voltage FLTN Output Low Voltage VFLTN,OL IFLTN = 2mA FLTN Output High Voltage VFLTN,OH IFLTN = 0 to -4mA 4.0 4.3 FLTN Output Latch Threshold VFLTN,TH FLTN High to Low transition 1.8 2.3 3 V V 12V Power On Enable Threshold VPOR,THrise VCC Voltage Rising 9.4 10 10.2 V 12V Power On Reset Threshold VPOR,THfall VCC Voltage Falling 8.9 9.1 9.3 V 6 HIP1011D Introduction The HIP1011D is the first device designed to provide control and protection of the four PCI power supplies independently to two PCI slots. Like the widely used HIP1011 this device complies with the PCI Hot Plug specification facilitating the service, upgrading or expansion of PCI based servers without the need to power down the server. The HIP1011D protects against over current (OC) for the -12V, +12V, +3.3V, +5V and under voltage (UV) conditions for the +12V, +3.3V, +5V supplies. Figure 1 illustrates the typical implementation of the HIP1011D. Additional components for optimizing performance for particular applications, or desired features may be necessary. Key Feature Description and Operation The HIP1011D, four power MOSFETs and a few passive components as configured in Figure 1, create a small yet complete power control solution for two PCI slots. It provides an OC trip level greater than the maximum PCI specified current for each supply to each slot. Over current monitoring and protection for the 3.3V and 5V supplies is provided by sensing the voltage across external current-sense resistors. For the +12V and -12V inputs, over current protection is provided internally. On-chip references are used to monitor the +5V, +3.3V and +12V outputs for under voltage conditions. During an over current condition on any output, or an under voltage condition on the +5V, +3.3V or +12V outputs, all slot specific MOSFETs are immediately latchedoff and a LOW (0V) is presented to the appropriate FLTN output. During initial power-up of the main VCC supply (+12V), the PWRON inputs are inhibited from turning on the switches, and the latch is held in the reset state until the VCC input is greater than 10V. After a fault has been asserted and FLTN is latched low cycling PWRON low then high will clear the FLTN latch. User programing of the OC thresholds for both controlled slots is provided by a single resistor connected to the OCSET pin along with Rsense. In addition delay time to latch off after a fault condition can be increased by increasing the FLTN to ground capacitance and the turnon ramp rate can be increased by increasing the gate pin capacitance. Customizing Circuit Performance Over Current (OC) Set Functionality and Resistor Choice The HIP1011D allows easy custom programming of the over current (OC) levels of all 4 supplies simultaneously for both PCI slots by simply changing the resistor value between OCSET, (pin 10), and ground. The ROCSET value and the OCSET 100µA current source sets a voltage that is used in each of eight comparators, (one for each supply for both slots). The voltages developed across the 3.3V and 5V sense resistors are applied to the inputs of their respective 7 comparators. The +12V and -12V currents are sensed internally with pilot devices. Once any comparator trips, that output is fed through logic circuits resulting in the appropriate FLTN, (pin 4 or pin 11), going low, indicating a fault condition on that particular slot. Because of the internal current monitoring of the +12V and -12V switches, their programming flexibility is limited to ROCSET changes. The 3.3V and 5V over current trip points depend on both ROCSET and the value chosen for each sense resistor. Over current design guidelines and recommendations are as follows: 1. For PCI applications, set ROCSET to 6.04kΩ, and use 5mΩ 1% sense resistors (see Figure 24). 2. For non PCI specified applications, the following precautions and limitations apply: A. Do not exceed the maximum power of the integrated NMOS and PMOS. High power dissipation must be coupled with effective thermal management. The integrated PMOS has an rDS(ON) of 0.3Ω. Thus, with 1A of steady load current on each of the PMOS devices the power dissipation is 0.6W. The thermal impedance of the package is 95 degrees Celsius per watt, limiting the average DC current on the 12V supply to about 1A on each slot and imposing an upper limit on the ROCSET resistor. Do not use an ROCSET resistor greater than 15kΩ. The average current on the -12V supply should not exceed 0.7A. Since the thermal restrictions on the +12V supply are more severe, the +12V supply restricts the use of the HIP1011 to applications where the ±12V supplies draw relatively little current. Since both supplies only have one degree of freedom, the value of ROCSET, the flexibility of programming is quite limited. For applications where more power is required on the +12V supply, contact your local Intersil sales representative for information on other Hot Plug solutions. B. Do not try to sense voltages across the external sense resistors that are less than 33mV. Spurious faults due to noise and comparator input sensitivity may result. The minimum recommended ROCSET value is 6kΩ. This will set the nominal OC voltage thresholds at 52mV and 42mV for the 3.3V and 5V comparators respectively. This is the voltage level at which the OC fault (IOUT x RSENSE) will occur. C. Minimize VRSENSE so as to not significantly reduce the voltage delivered to the adapter card. Remember PCB trace and connector distribution voltage losses also need to be considered. Make sure that the RSENSE resistor can adequately handle the dissipated power. For best results use a 1% precision resistor with a low temperature coefficient. D. Minimize external FET rDS(ON). Low rDS(ON) or multiple MOSFETs in parallel are recommended. See Intersil for a complete selection of MOSFET offerings. HIP1011D TABLE 1. SUPPLY HOW TO DETERMINE NOMINAL (±10%) IOC FOR EACH SUPPLY +3.3V IOC ((100µA x ROCSET)/11.5)/RRSENSE +5.0V IOC ((100µA x ROCSET)/14.5)/RRSENSE +12V IOC (100µA x ROCSET)/0.8 -12V IOC (100µA x ROCSET)/3.3 Time Delay to Latch-Off Time delay to latch-off allows for a predetermined delay from an OC or UV event to the simultaneous latch-off of all four supply switches of the affected slot by the HIP1011D. This delay period is set by the capacitance value to ground from the FLTN pins for each slot. This capacitance value tailors the FLTN signal going low ramp rate. This provides a delay to the fault signal latch-off threshold voltage, FLTN, Vth. By increasing this time, the HIP1011D delays immediate latchoff of the bus supply switches, thus ignoring transient OC and UV conditions. See additional information in the “Using the HIP1011DEVAL1 Platform” section of this data sheet. Caution: The primary purpose of a protection device such as the HIP1011D is to quickly isolate a faulted card from the voltage bus. Delaying the time to latch-off works against this primary concern so care must be taken when using this feature. Ensure adequate sizing of external FETs to carry additional current during time out period. Understand that voltage bus disruptions must be minimized for the time delay period in the event of a crow bar failure. Devices using an unadjustable preset delay to latch-off time present the user with the inability to eliminate these concerns increasing cost and the chance of additional ripple through failures. HIP1011D Soft Start and Turn-Off Considerations The HIP1011D does allow the user to select the rate of ramp up on the voltage supplies. This start-up ramp minimizes inrush current at start-up while the on card bulk capacitors charge. The ramp is created by placing capacitors on M12VG to M12VO, 12VG to 12VO and 3V5VG to ground. These capacitors are each charged up by a nominal 25µA current during turn on. The same value for all gate timing capacitors is recommended. A recommended minimum value of 0.033µF as a smaller value may cause overcurrent faults at power up. This recommendation results in a nominal gate voltage ramp rate of 0.76V/ms. The gate capacitors must be discharged when a fault is detected to turn off the power FETs. Thus, larger caps slow the response time. If the gate capacitors are too large the HIP1011D may not be able to adequately protect the bus or the power FETs. The HIP1011D has internal discharge FETs to discharge the load when disabled. Upon turn-off these internal switches on each output discharge the load capacitance pulling the output to gnd. These switches are also on when PWRON is low thus an open slot is held at the gnd level. 8 Decoupling Precautions and Recommendations For the HIP1011D proper decoupling is a particular concern during the normal switching operation and especially during a card crowbar failure. If a card experiences a crow bar short to ground, the supply to the other card will experience transients until the faulted card is isolated from the bus. In addition the common IC nodes between the two sides can fluctuate unpredictably resulting in a false latch-off of the second slot. Additionally to the mother board bulk capacitance, it is recommended that 10µF capacitors be placed on both the +12V and -12V lines of the HIP1011D as close to the chip as possible. Recommended PCB Layout Design Best Practices To ensure accurate current sensing, PCB traces that connect each of the current sense resistors to the HIP1011D must not carry any load current. This can be accomplished by two dedicated PCB kelvin traces directly from the sense resistors to the HIP1011D, see examples of correct and incorrect layouts below in Figure 3. To reduce parasitic inductance and resistance effects, maximize the width of the high-current PCB traces. CORRECT INCORRECT TO HIP1011D VS AND VISEN TO HIP1011D VS AND VISEN CURRENT SENSE RESISTOR FIGURE 3. SENSE RESISTOR PCB LAYOUT HIP1011D Typical Performance Curves 1000 320 900 4.632 2.862 300 800 PMOS +12 rON 280 700 5 UV 2.861 5V UVTRIP (V) NMOS -12 rON NMOS rON -12 (mΩ) PMOS rON +12 (mΩ) 4.631 4.630 2.860 4.629 3.3 UV 4.628 3.3V UVTRIP (V) 340 2.859 4.627 260 600 5 10 15 20 25 30 35 40 45 50 55 60 65 70 0 4.626 0 2.858 5 10 15 20 25 30 35 40 45 50 55 60 65 70 TEMPERATURE (oC) TEMPERATURE (oC) FIGURE 4. rON vs TEMPERATURE FIGURE 5. UV TRIP vs TEMPERATURE 10.59 100 3V OCVth, VOCSET = 1.2V OC Vth (mV) 12 UV TRIP (V) 85 10.57 5V OCVth, VOCSET = 1.2V 70 10.55 3V OCVth, VOCSET = 0.6V 55 5V OCVth, VOCSET = 0.6V 40 10.53 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 0 5 FIGURE 6. 12 UV TRIP vs TEMPERATURE FIGURE 7. OC Vth vs TEMPERATURE 6 10.0 +12V BIAS +12V POWER ON ENABLE 5 4 -12V BIAS 3 +12V THRESHOLDS (V) ABS +/-12V BIAS (MA) 10 15 20 25 30 35 40 45 50 55 60 65 70 TEMPERATURE (oC) TEMPERATURE (oC) 9.75 9.5 9.25 +12V POWER ON RESET 2 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 TEMPERATURE (oC) FIGURE 8. BIAS CURRENT vs TEMPERATURE 9 9.0 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 TEMPERATURE (oC) FIGURE 9. 12V ENABLE AND RESET THRESHOLD VOLTAGES vs TEMPERATURE HIP1011D Typical Performance Curves (Continued) 0.4 1.5 -12V OVER CURRENT (A) +12V OVER CURRENT (A) VOCSET = 1.2V 1.25 VOCSET = 1.2V 1.0 0.75 VOCSET = 0.6V 0.3 0.2 VOCSET = 0.6V 0.1 0 0.5 0 5 0 10 15 20 25 30 35 40 45 50 55 60 65 70 5 10 15 20 25 30 35 40 45 50 55 60 65 70 TEMPERATURE (oC) TEMPERATURE (oC) FIGURE 10. +12V OVER CURRENT LEVEL vs TEMPERATURE FIGURE 11. -12V OVER CURRENT vs TEMPERATURE 2.4 FLTN LATCH OFF THRESHOLD (V) 102 100 99 2.35 2.3 2.25 2.2 98 0 5 0 10 15 20 25 30 35 40 45 50 55 60 65 70 5 10 15 20 25 30 35 40 45 50 55 60 65 70 TEMPERATURE (oC) TEMPERATURE (oC) FIGURE 12. OCSET CURRENT vs TEMPERATURE FIGURE 13. FLTN LATCH-OFF THRESHOLD VOLTAGE vs TEMPERATURE 100 OV / UV TO FAULT RESPONSE TIME (ns) IOC SET (µA) 101 90 80 70 60 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 TEMPERATURE (oC) FIGURE 14. OVER CURRENT AND UNDERVOLTAGE TO FLTN RESPONSE TIME vs TEMPERATURE 10 HIP1011D Using the HIP1011DEVAL1 Platform Evaluating Time Delay to Latch-Off Test point numbers (TP#) correspond to the HIP1011D device (U5) pin numbers thus TP3 and TP12 are PWRON_2 and PWRON_1 respectively. These 2 pins are the HIP1011D control inputs for each of the 2 integrated but independent PCI power controllers in the HIP1011D. Provided for delay to latch-off evaluation are 2 locations for 1206 SMD capacitors, C7 and C8. Filling these locations places a capacitor to ground from each of the HIP1011D FLTN pins thus tailoring the FLTN signal going low ramp rate. This provides a delay to the fault signal latch-off threshold voltage, FLTN Vth. By increasing this time the HIP1011D delays immediate latch-off of the bus supply switches, thus ignoring transient OC and UV conditions. See Table 3 illustrating the time it takes for switch gate turn-off from the FLTN start of response to an OC or UV condition. The FLTN response to an OC or UV condition is 110ns. See Figures 20 through 23 for waveforms. On the HIP1011DEVAL1 platform are 4 HUF76132SK8, (11.5mΩ, 30V, 11.5A) N-Channel power MOSFETs, (Q1Q4) these are used as the external switches for the +5V and +3.3V supplies to the load card connectors, P1 and P2. The intent of any protection device is to isolate the supply quickly so a faulty card does not drag down a supply. A longer latch-off delay results in less isolation from a faulty card to supply. General and Biasing Information The HIP1011DEVAL1 platform (Figure 24) comes as a three part set consisting of 1 mother board emulator and 2 load cards. This evaluation platform allows a designer to evaluate and modify the performance and functionality of the HIP1011D in a simple environment. Current sensing is facilitated by the four 5mΩ 1W metal strip resistors (R1-R4), the voltages developed across the sense resistors are compared to references on board the HIP1011D. TABLE 3. C7 AND C8 VALUE OPEN 0.001µF 0.01µF 0.1µF FLTN to Gate Response 0.1µs 0.44µs 2.9µs 28µs The HIP1011DEVAL1 platform is powered through the J1 to J5 connector jacks near the top of the board, see Table 2 for bias voltage assignments. FLTN TABLE 2. HIP1011DEVAL1 BIAS ASSIGNMENTS J1 J2 J3 J4 J5 GND +5V -12V +12V +3.3V After properly biasing the HIP1011D and ensuring there is an adequate ground return from the HIP1011DEVAL1 platform to the power supplies, (otherwise anomalous and unpredictable results will occur) signal the PWRON inputs low then insert the load cards as shown in Figure 15. Signaling either or both PWRON pins high (>2.4V) will turn on the appropriate FET switches and apply voltage to the load cards. 3V5VG FLTN, Vth FIGURE 16. TIMING DIAGRAM 10ms 1ms 100µs 10µs LOAD CARDS 1µs 100ns 10ns 1ns OPEN 0.001µF 0.01µF 0.1µF 1µF 10µF FIGURE 17. TYPICAL OC/UV TO VG RESPONSE vs FLTN CAP HIP1011D FIGURE 15. cORRECT INSTALLATION OF LOAD CARDS 11 HIP1011D Typical Performance Curves (Continued) SUPPLY CURRENT CH3 SUPPLY CURRENT CH2 CH1 CH2 ENABLE 2 ENABLE 2 CH1 ENABLE 1 ENABLE 1 CH1 AND CH2 VOLTAGE (5V/DIV) CH3 CURRENT (2A/DIV) TIME (100ms/DIV) FIGURE 18. HIP1011DEVAL1 3.3V SUPPLY CURRENT AS EACH SLOT CONTROLLER TURNS ON INTO LOAD CARD CH1 AND CH2 VOLTAGE (5V / DIV) CH3 CURRENT (2A/DIV) TIME (100ms/DIV) FIGURE 19. HIP1011DEVAL1 3.3V SUPPLY CURRENT AS CONTROLLER 1 TURNS ON INTO SHORTED LOAD CARD VG VG FLTN FLTN TIME (1µs /DIV) FLTN = OPEN VOLTAGE (2V/DIV) FIGURE 20. FLTN TO 35VG DELAY VOLTAGE (2V/DIV) TIME (1µs /DIV) FLTN = 0.001µF FIGURE 21. FLTN TO 35VG DELAY VG VG FLTN FLTN VOLTAGE (2V/DIV) TIME (2µs/DIV) FLTN = 0.01µF FIGURE 22. FLTN TO 35VG DELAY 12 VOLTAGE (2V/DIV) TIME (10µs/DIV) FLTN = 0.1µF FIGURE 23. FLTN TO 35VG DELAY HIP1011D 12V -12V 5V P1 J3 5VISEN_1 M12VIN_1 M12G_1 -12V BUS R1 C1 5VS_1 M12VO_1 Q1 3V5VG_1 J1 3.3V M12VIN_2 M12G_2 3V5VG_2 M12VO_2 5VS_2 J2 5V BUS Q2 C2 R2 J4 +12V BUS C3 5VISEN_2 12VIN_1 12VG_1 HIP1011D 12VO_1 C6 C5 3VISEN_1 U1 R3 3VS_1 C4 12VIN_2 12VG_2 Q3 3.3V BUS 12VO_2 Q4 3VS_2 TP3 PWRON_1 PWRON_2 OCSET TP12 R4 VSS FLTN_1 3VISEN_2 FLTN_2 TP11 R5 -12v 12v R6 R7 D1 D2 P2 FIGURE 24. 13 TP4 C8 C7 No Pop No Pop 3.3v 5v J5 HIP1011D TABLE 4. HIP1011DEVAL1 BOARD COMPONENT LISTING COMPONENT DESIGNATOR U1 COMPONENT NAME COMPONENT DESCRIPTION HIP1011DCB PCI HotPlug Controller Intersil, HIP1011DCB Dual PCI HotPlug Controller HUF76132SK8 Intersil, HUF76132SK8, 11.5mΩ, 30V, 11.5A Logic Level N-Channel MOSFET R1 - R4 Sense Resistor for 3.3V and 5V Supplies Dale, WSL-2512 5mΩ Metal Strip Resistor C1 - C6 Gate Timing Capacitors 0.033µF 805 Chip Capacitor R5 Over Current Set Resistor 6kΩ 805 Chip Resistor C7, C8 (Not Provided) Latch-Off Delay Capacitors Place provided for 805 Chip Cap R6, R7 LED Series Resistors 470Ω 805 Chip Resistors D1, D2 Fault Indicating LED Green SMD LED Q1, Q2, Q3, Q4 TP1 - TP28 Test Point for Corresponding Device Pin Number P1, P2 Connectors for Load Cards Sullins EZM06DRXH RL1 3.3V Load Board Resistor 1.1Ω, 10W RL2 5.0V Load Board Resistor 2.5Ω, 10W RL3 +12V Load Board Resistor 47Ω, 5W RL4 -12V Load Board Resistor 240Ω, 2W CL1, CL2 +3.3V and +5.0V Load Board Capacitors 2200µF CL3, CL4 +12V and -12V Load Board Capacitors 100µF RL1 3.3V CL1 RL2 5.0V CL2 RL3 +12V CL3 RL4 -12V CL4 FIGURE 25. LOAD BOARD (2x) 14 HIP1011D Shrink Small Outline Plastic Packages (SSOP) M28.15 N INDEX AREA H 0.25(0.010) M 28 LEAD SHRINK NARROW BODY SMALL OUTLINE PLASTIC PACKAGE B M E 1 2 INCHES GAUGE PLANE -B3 L 0.25 0.010 SEATING PLANE -A- h x 45o A D -C- α e B 0.17(0.007) M A2 A1 C 0.10(0.004) C A M B S NOTES: 1. Symbols are defined in the “MO Series Symbol List” in Section 2.2 of Publication Number 95. 2. Dimensioning and tolerancing per ANSI Y14.5M-1982. 3. Dimension “D” does not include mold flash, protrusions or gate burrs. Mold flash, protrusion and gate burrs shall not exceed 0.15mm (0.006 inch) per side. 4. Dimension “E” does not include interlead flash or protrusions. Interlead flash and protrusions shall not exceed 0.25mm (0.010 inch) per side. 5. The chamfer on the body is optional. If it is not present, a visual index feature must be located within the crosshatched area. 6. “L” is the length of terminal for soldering to a substrate. 7. “N” is the number of terminal positions. 8. Terminal numbers are shown for reference only. 9. Dimension “B” does not include dambar protrusion. Allowable dambar protrusion shall be 0.10mm (0.004 inch) total in excess of “B” dimension at maximum material condition. 10. Controlling dimension: INCHES. Converted millimeter dimensions are not necessarily exact. MILLIMETERS SYMBOL MIN MAX MIN MAX NOTES A 0.053 0.069 1.35 1.75 - A1 0.004 0.010 0.10 0.25 - A2 - 0.061 - 1.54 - B 0.008 0.012 0.20 0.30 9 C 0.007 0.010 0.18 0.25 - D 0.386 0.394 9.81 10.00 3 E 0.150 0.157 3.81 3.98 4 e 0.025 BSC 0.635 BSC - H 0.228 0.244 5.80 6.19 - h 0.0099 0.0196 0.26 0.49 5 L 0.016 0.050 0.41 1.27 6 N α 28 0o 28 8o 0o 7 8o Rev. 0 2/95 All Intersil semiconductor products are manufactured, assembled and tested under ISO9000 quality systems certification. Intersil semiconductor products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design and/or specifications at any time without notice. Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries. For information regarding Intersil Corporation and its products, see web site www.intersil.com Sales Office Headquarters NORTH AMERICA Intersil Corporation P. O. Box 883, Mail Stop 53-204 Melbourne, FL 32902 TEL: (321) 724-7000 FAX: (321) 724-7240 15 EUROPE Intersil SA Mercure Center 100, Rue de la Fusee 1130 Brussels, Belgium TEL: (32) 2.724.2111 FAX: (32) 2.724.22.05 ASIA Intersil (Taiwan) Ltd. 7F-6, No. 101 Fu Hsing North Road Taipei, Taiwan Republic of China TEL: (886) 2 2716 9310 FAX: (886) 2 2715 3029