Primarion VR Chipset - PowerPoint PPT Presentation
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Primarion VR Chipset
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p. 1. Primarion VR Chipset. Up to 2 MHz switching. 1 to 6 phases. Reduced output cap. 100A, 1000A/us with 500uF MLCC. Current sense calibration. Built-in cal on ... – PowerPoint PPT presentation
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Title: Primarion VR Chipset
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Primarion VR Chipset
PX3520 Integrated Power Stage
PX3538/9 Digital Controllers
- 30A Power Stage
- Integrated control FET and drivers
- Integrated current and temp sensor
- Discrete sync FET
- Customize for each application
- CSP package
- Lead or lead-free available
- Up to 2 MHz switching
- 1 to 6 phases
- Reduced output cap
- 100A, 1000A/us with 500uF MLCC
- Current sense calibration
- Built-in cal on startup
- Digital temperature compensation
- I2C interface
- Monitor I,V, T, faults
- Real-time voltage control
- Use with discrete or integrated power stage
- 3.3V supply, QFN package
PX3511 Driver
- High performance FET Driver
- 3.3V Logic compatible
- A Version
- Variable low-side drive
- B Version
- Variable low and high-side driver
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PX3538 6-phase ControllerBlock Diagram
- Integrated voltage and current digitizers
- Programmable digital control loop
- Programmable fault settings
- Integrated non-volatile memory
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PX3525 Integrated Power Stage
- Integrated high and low-side current sensor
- Process and temp insensitive
- Pulse-by-pulse OCP
- Integrated temp sensor
- Low RDSon FETs
- 15 mOhm high-side
- 2 mOhm low-side
- 30A per phase
- 20 duty factor
- CSP package
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Low Cost VR Solutions
- VR11 Applications
- 0.8 to 1.6V
- 1200A/us
- 6-phase digital controller
- Self calibrating current sense
- Low output cap technology
- I2C bus for monitoring control
- Discrete drivers and FETs
Discrete 2U VRM solution 82 Efficiency at 1.25V
130A
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High Current Density VR Solutions
- VR11 Applications
- 0.8 to 1.6V
- 1200A/us
- 6-phase digital controller
- Self calibrating current sense
- Low output cap technology
- I2C bus for monitoring control
- Integrated Power Stage FET
Integrated VRD Solution 87 Efficiency at 1.2V
130A
Integrated 1U VRM solution 84 Efficiency at
1.25V 130A
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VR Power Code User Interface
- Easy to use GUI
- Runs on any PC with USB interface
- Configure system parameters
- Monitor telemetry and faults
- Fine tune feedback loop and set fault trip
thresholds
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PX3542 Graphics Controller Features
- 4- to 6-phase operation
- Maximum current 150A
- Output voltage 0.5V - 1.6V
- Switching frequency 100 kHz to 2 MHz
- Internal high precision voltage reference
- ?10mV voltage setpoint accuracy
- Startup and maximum voltages set through external
resistor (tamper resistant) - 2-bit VID input for final voltage set
- Programmed in NVM, vmax resistor limits max
output - Plug and play extra phases
- Driver detect prior to soft-start disables
unpopulated phases - Phase dropping based on current balance
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PX3542 Graphics Controller Features
- Programmable current balance offset (/- 10) for
thermal balancing - Digitally programmable loadline and loop
compensation - Digital temperature sensor compensation
- Active Transient Response (ATR) enables meeting
transient requirements with reduced output
capacitance - I2C-bus interface for monitoring, control and
configuration - Current Voltage readout
- Query Fault details (out of balance channel
etc.) - Internal NVM to store custom configurations with
eight programmable active voltage position (AVP)
system configurations - RoHS compliant 48-ld QFN package
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PX3542 Fault Detection Capability
- Extensive fault detection capability with two
user configurable output fault pins - Input Under-voltage
- Output Under-/Over-voltage
- Per Phase and Total Output Current
- Current balance
- Auxiliary 12V supply
- (both fault and return reported)
- Multiple Internal and External Temperature Limits
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PX3542 Graphics Application Example
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Low Cost Graphics Solutions
- High End Graphics Applications
- 0.5V to 1.6V
- up to 2MHz switching freq
- 150A max
- 6-phase digital controller
- Self calibrating current sense
- Low output cap technology
- I2C bus for monitoring control
- Auto driver detect
- Auto current balance phase drop
- Discrete drivers and FETs
Discrete VRD solution 84 Efficiency at 1.25V
130A
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GPU Power Code User Interface
- Easy to use GUI
- Runs on any PC with USB interface
- Configure system parameters
- Monitor telemetry and faults
- Fine tune feedback loop and set fault trip
thresholds
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Di-POLTM PX7510 Block Diagram
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Di-POLTM PX7510 Application ExampleSingle-Phase
POL Converter
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