XPHASETM VRD10 CONTROL IC

Data Sheet No. PD94705 revB IR3080PbF XPHASETM VRD10 CONTROL IC WITH VCCVID & OVERTEMP DETECT DESCRIPTION The IR3080 Control IC combined with an IR XPhaseTM Phase IC provides a full featured and flexible way to implement a complete VRD 10 power solution. The “Control” IC provides overall system control and interfaces with any number of “Phase ICs” which each drive and monitor a single phase of a multiphase converter. The XPhaseTM architecture results in a power supply that is smaller, less expensive, and easier to design while providing higher efficiency than conventional approaches. The IR3080 is intended for desktop applications and includes the VCCVID and VRHOT functions required for proper system operation. FEATURES • • • • • • • • • • • • • • • • • 6 bit VR10 compatible VID with 0.5% overall system accuracy 1 to X phases operation with matching phase ICs On-chip 700Ω VID Pull-up resistors with VID pull-up voltage input Programmable Dynamic VID Slew Rate No Discharge of output capacitors during Dynamic VID step-down (can be disabled) +/-300mV Differential Remote Sense Programmable 150kHz to 1MHz oscillator Programmable VID Offset and Load Line output impedance Programmable Softstart Programmable Hiccup Over-Current Protection with Delay to prevent false triggering Simplified Powergood provides indication of proper operation and avoids false triggering Operates from 12V input with 9.1V Under-Voltage Lockout 6.8V/5mA Bias Regulator provides System Reference Voltage 1.2V @ 150mA VCCVID Linear Regulator with Full Protection VCCVID Powergood with Programmable delay gates converter operation Programmable Converter Over-Temperature Detection and Output Small thermally enhanced 32L MLPQ package www.DataSheet4U.com APPLICATION CIRCUIT RVCC 10 ohm 12V VRHOT POWERGOOD CVIDDEL CSS/DEL CVCC 0.1uF VID POWERGOOD RHOTSET2 32 30 31 29 28 27 26 VIDDEL SS/DEL HOTSET VRHOT RMPOUT VIDPGD PWRGD LGND 25 RHOTSET1 RMPOUT VCC VBIAS VCCVID 1 2 VIDFB 24 23 22 21 20 19 18 17 VBIAS 0.1uF VCCVID VIDPWR VID5 VID0 VID1 VID2 VOSNS- 3.3V VID5 VID0 VID1 VID2 3 4 5 6 7 8 IR3080 CONTROL IC BBFB EAOUT FB VDRP IIN OCSET RCP CCP EA RDRP1 CDRP 5 Wire Analog Bus to Phase ICs CCP1 RDRP VID3 VID3 TRM1 TRM2 VID4 ISHARE VDAC ROCSET ROSC 15 TRM3 TRM4 10 11 12 13 14 16 9 VDAC VID4 ROSC CFB RVDAC RFB1 RFB CVDAC VOSENSE+ VOSENSE- Remote Sense Page 1 IR3080PbF ORDERING INFORMATION Device IR3080MTRPbF IR3080MPbF Order Quantity 3000 per reel 100 piece strips ABSOLUTE MAXIMUM RATINGS Operating Junction Temperature……………..150oC Storage Temperature Range………………….-65oC to 150oC ESD Rating……………………………………..HBM Class 1C JEDEC standard PIN # 1 2 3 4-9 10, 11, 13,14 12 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 PIN NAME VIDFB VCCVID VIDPWR VID0-5 TRM1-4 VOSNSROSC VDAC OCSET IIN VDRP FB EAOUT BBFB VBIAS VCC LGND RMPOUT HOTSET VRHOT SS/DEL PWRGD VIDPGD VIDDEL VMAX 20V 20V 20V 20V Do Not Connect 0.5V 20V 20V 20V 20V 20V 20V 10V 20V 20V 20V n/a 20V 20V 20V 20V 20V 20V 20V VMIN -0.3V -0.5V -0.3V -0.3V Do Not Connect -0.5V -0.5V -0.3V -0.3V -0.3V -0.3V -0.3V -0.3V -0.3V -0.3V -0.3V n/a -0.3V -0.3V -0.3V -0.3V -0.3V -0.3V -0.3V ISOURCE 1mA 400mA 1mA 10mA Do Not Connect 10mA 1mA 1mA 1mA 1mA 5mA 1mA 10mA 1mA 1mA 1mA 50mA 1mA 1mA 1mA 1mA 1mA 1mA 1mA ISINK 1mA 50mA 400mA 10mA Do Not Connect 10mA 1mA 1mA 1mA 1mA 5mA 1mA 20mA 1mA 1mA 50mA 1mA 1mA 1mA 50mA 1mA 20mA 20mA 1mA Page 2 IR3080PbF ELECTRICAL SPECIFICATIONS Unless otherwise specified, these specifications apply over: 9.5V ≤ VCC ≤ 14V, 2.0V ≤ VIDPWR ≤ 5.5V and 0 oC ≤ TJ ≤ 100 oC PARAMETER VDAC Reference System Set-Point Accuracy TEST CONDITION -0.3V ≤ VOSNS- ≤ 0.3V, Connect FB to EAOUT, Measure V(EAOUT) – V(VOSNS-) deviation from Table 1. Applies to all VID codes. RROSC = 41.9kΩ RROSC = 41.9kΩ MIN TYP 0.5 MAX UNIT % Source Current Sink Current VID Input Threshold VID Pull-up Resistors Regulation Detect Comparator Input Offset Regulation Detect to EAOUT Delay BBFB to FB Bias Current Ratio VID 11111x Blanking Delay VID Step Down Detect Blanking Time VID Down BB Clamp Voltage VID Down BB Clamp Current Error Amplifier Input Offset Voltage 68 47 500 500 -5 80 55 600 700 0 130 92 63 700 1000 5 200 1.05 µA µA mV Ω mV ns µA/µA ns µs 0.95 Measure time until PWRGD drives low Measure from VID inputs to EAOUT Percent of VDAC voltage 70 3.5 -3 1.00 800 1.7 75 6.2 4 80 12 8 % mA mV FB Bias Current DC Gain Gain-Bandwidth Product Source Current Sink Current Max Voltage Min Voltage VDRP Buffer Amplifier Input Offset Voltage Input Voltage Range Bandwidth (-3dB) Slew Rate IIN Bias Current Connect FB to EAOUT, Measure V(EAOUT) – V(DAC). from Table 1. Applies to all VID codes and -0.3V ≤ VOSNS- ≤ 0.3V. Note 2 RROSC = 41.9kΩ Note 1 Note 1 VBIAS–VEAOUT (referenced to VBIAS) Normal operation or Fault mode V(VDRP) – V(IIN), 0.8V ≤ V(IIN) ≤ 5.5V Note 1 -31 90 4 0.4 0.7 125 30 -8 0.8 1 -2.0 -29.5 100 7 0.6 1.2 250 100 0 6 10 -0.75 -28 105 0.8 1.7 375 150 8 5.5 µA dB MHz mA mA mV mV mV V MHz V/µs µA 0 Page 3 IR3080PbF PARAMETER Oscillator Switching Frequency Peak Voltage (5V typical, measured as % of VBIAS) Valley Voltage (1V typical, measured as % of VBIAS) VBIAS Regulator Output Voltage Current Limit Soft Start and Delay SS/DEL to FB Input Offset Voltage Charge Current Discharge Current Charge/Discharge Current Ratio Charge Voltage Delay Comparator Threshold Discharge Comparator Threshold Over-Current Comparator Input Offset Voltage OCSET Bias Current PWRGD Output Output Voltage Leakage Current VCCVID Regulator Output Voltage Dropout Voltage Current Limit VIDFB Bias Current VCCVID Powergood VCCVID Threshold Voltage Charge Current Discharge Current Charge Voltage Delay Comparator Threshold VIDPGD Output Voltage VIDPGD Leakage Current TEST CONDITION RROSC = 41.9kΩ RROSC = 41.9kΩ RROSC = 41.9kΩ MIN 255 70 11 TYP 300 71 14 MAX 345 74 16 UNIT kHz % % -5mA ≤ I(VBIAS) ≤ 0 6.5 -30 0.85 40 4 10 3.7 70 150 6.8 -15 1.3 70 6 11.5 4.0 90 200 7.1 -6 1.5 100 9 13 4.2 110 250 V mA V µA µA µA/µA V mV mV With FB = 0V, adjust V(SS/DEL) until EAOUT drives high Relative to Charge Voltage RROSC = 41.9kΩ I(PWRGD) = 4mA V(PWRGD) = 5.5V -150mA ≤ I(VCCVID) ≤ 0 I(VCCVID) = -20mA I(VCCVID) = -150mA -10 -31 0 -29.5 150 0 10 -28 400 10 1.215 200 1.0 mV µA mV µA V mV V mA µA 1.145 -225 Relative to regulated VCCVID Output Voltage 1.05 30 4 3.7 65 1.200 130 0.8 -300 -150 1.10 66 7 4.0 90 150 0 1.13 90 11 4.2 115 400 10 V µA mA V mV mV µA Relative to Charge Voltage I(VIDPGD) = 4mA V(VIDPGD) = 5.5V Page 4 IR3080PbF PARAMETER VCC Under-Voltage Lockout Start Threshold Stop Threshold Hysteresis General VCC Supply Current VIDPWR Supply Current VOSNS- Current VRHOT Comparator HOTSET Bias Current Output Voltage VRHOT Leakage Current Threshold Hysteresis TEST CONDITION MIN 8.6 8.4 150 8 400 -5.5 -2 I(VRHOT) = 29mA V(VRHOT) = 5.5V TJ TYP 9.1 8.9 200 11 550 -4.5 -0.5 300 0 6 MAX 9.6 9.4 300 14 1000 -3.5 1 400 10 10 UNIT V V mV mA µA mA µA mV µA o C Start – Stop VID0-5 Open, I(VCCVID) = 0 -0.3V ≤ VOSNS- ≤ 0.3V, All VID Codes ≥ ≥ 85oC MIN 4.73mV/ oC x TJ + 1.176V 3 TYP 4.73mV/ oC x TJ + 1.241V Threshold Voltage (increasing temperature) TJ 85 C o MAX 4.73mV/ oC x TJ + 1.356V V Note 1: Guaranteed by design, but not tested in production Note 2: VDAC Output is trimmed to compensate for Error Amplifier input offsets errors Page 5 IR3080PbF PIN DESCRIPTION PIN# 1 2 3 4-9 10, 11, 13,14 12 15 16 PIN SYMBOL VIDFB VCCVID VIDPWR VID0-5 TRM1-4 PIN DESCRIPTION Feedback to the VCCVID regulator. Connect to the VCCVID output. 1.2V/150mA Regulator Output. Can also drive external pass transistor to minimize on-chip power dissipation Power for VID Pull-up resistors and VCCVID Regulator Inputs to VID D to A Converter. On-chip 700 ohm pull-up resistors to VIDPWR pin are included. Used for precision post-package trimming of the VDAC voltage. Do not make any connection to these pins. Remote Sense Input. Connect to ground at the Load. Connect a resistor to VOSNS- to program oscillator frequency and FB, OCSET, BBFB, and VDAC bias currents Regulated voltage programmed by the VID inputs. Current Sensing and PWM operation are referenced to this pin. Connect an external RC network to VOSNS- to program Dynamic VID slew rate. Programs the hiccup over-current threshold through an external resistor tied to VDAC and an internal current source. Over-current protection can be disabled by connecting this pin to a DC voltage no greater than 6.5V (do not float this pin as improper operation will occur). Current Sense input from the Phase IC(s). To ensure proper operation bias to at least 250mV (don’t float this pin). Buffered IIN signal. Connect an external RC network to FB to program converter output impedance Inverting input to the Error Amplifier. Converter output voltage is offset from the VDAC voltage through an external resistor connected to the converter output voltage at the load and an internal current source. Output of the Error Amplifier Input to the Regulation Detect Comparator. Connect to converter output voltage and VDRP pin through resistor network to program recovery from VID step-down. Connect to ground to diable Body BrakingTM during transition to a lower VID code. 6.8V/5mA Regulated output used as a system reference voltage for internal circuitry and the Phase ICs Power for internal circuitry Local Ground and IC substrate connection Oscillator Output voltage. Used by Phase ICs to program Phase Delay Inverting input to VRHOT comparator. Connect resistor divider from VBIAS to LGND to program VRHOT threshold. Diode or thermistor may be substituted for lower resistor for enhanced/remote temperature sensing. Applying a voltage exceeding approximately 7.5V disables the oscillator for factory testing.