Overview
The NCP81610MNTXG is a multiphase synchronous controller designed by ON Semiconductor, optimized for new generation computing and graphics processors. This device is capable of driving up to 8 phases, making it highly versatile for various high-power applications. It incorporates advanced features such as differential voltage and phase current sensing, adaptive voltage positioning, and a PWM_VID interface to ensure accurate and efficient power regulation. The controller also includes a power saving interface (PSI) that allows for dynamic phase shedding and fixed low phase count modes to enhance efficiency in light-load conditions.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| VCC Supply Voltage Range | 4.6 | 5.4 | V | |
| VRMP Supply Range | 2.8 | 20 | V | |
| Switching Frequency (8 Phase) | 250 kHz | 1.2 MHz | ||
| UVLO Threshold VCC Rising | 4.5 | V | ||
| UVLO Threshold VCC Falling | 4 | V | ||
| Operating Junction Temperature Range | -40 | 125 | °C | |
| Operating Ambient Temperature Range | -10 | 100 | °C | |
| Maximum Storage Temperature Range | -55 | 150 | °C | |
| Package Type | 40 Pin QFN (5 x 5 mm Body, 0.4 mm Pitch) |
Key Features
- Compliant with NVIDIA OVR4i+ Specifications
- Supports up to 8 phases
- Dual edge PWM multiphase architecture for fast transient response and good dynamic current balance
- Power Good Output
- Under Voltage Protection (UVP) and Over Voltage Protection (OVP)
- Per Phase Over Current Limiting (OCL) and System Over Current Protection (OCP)
- Startup into Pre-Charged Loads while Avoiding False OVP
- Configurable Load Line
- High Performance Operational Error Amplifier
- True Differential Current Balancing Sense Amplifiers for Each Phase
- Phase-to-Phase Dynamic Current Balancing
- Current Mode Dual Edge Modulation for Fast Initial Response to Transient Loading
- Power Saving Interface (PSI) with Automatic Phase Shedding
- PWM_VID and I2C Control Interface
- Pb-Free and RoHS Compliant
Applications
- GPU and CPU Power
- Graphic Cards
- Desktop and Notebook Applications
- Docking Stations
- Power Banks
Q & A
- What is the primary function of the NCP81610MNTXG?
The NCP81610MNTXG is a multiphase synchronous controller designed to regulate power for computing and graphics processors.
- How many phases can the NCP81610MNTXG support?
The device can support up to 8 phases.
- What is the voltage range for the VCC supply?
The VCC supply voltage range is from 4.6 V to 5.4 V.
- What protection features does the NCP81610MNTXG include?
The device includes Under Voltage Protection (UVP), Over Voltage Protection (OVP), Per Phase Over Current Limiting (OCL), System Over Current Protection (OCP), and external temperature monitoring (TMON).
- How does the Power Saving Interface (PSI) work?
The PSI allows for dynamic phase shedding and fixed low phase count modes to enhance efficiency in light-load conditions. It configures the device based on the voltage at the PSI, LPCX, and PHTHX pins.
- What is the purpose of the PWM_VID interface?
The PWM_VID interface is used to set the output voltage by converting a PWM signal into a reference voltage for internal regulation.
- What communication interfaces does the NCP81610MNTXG support?
The device supports PWM_VID and I2C interfaces for setting the output voltage and configuring or monitoring the controller status.
- What is the package type of the NCP81610MNTXG?
The device is packaged in a 40 Pin QFN (5 x 5 mm Body, 0.4 mm Pitch).
- Is the NCP81610MNTXG RoHS compliant?
Yes, the device is Pb-Free and RoHS compliant.
- What are some typical applications for the NCP81610MNTXG?
Typical applications include GPU and CPU power, graphic cards, desktop and notebook applications, docking stations, and power banks.
