Model No: ISL95808HRZ-T

Renesas Electronics Corporation ISL95808HRZ-T

Manufacturer: Renesas Electronics Corporation
SEMICON NO.: ISL95808HRZ-T
Package: 8-DFN
Stock: In stock
Description: IC GATE driver Half-bridge
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 Mfr Renesas Electronics Corporation
 Product Type Multiphase PWM Controller for CPU/GPU Core Power
 Input Voltage Range 4.5V to 25V (VIN)
 Output Voltage Range 0.3V to 1.52V (Programmable via SVID/I2C)
 Max Output Current  Supports 4-Phase Configuration (Up to 120A Total)
 Switching Frequency  200kHz to 1.5MHz (Adjustable per Phase)
 Control Interface  SVID (Serial VID) & I2C Compatibility
 Voltage Accuracy ±0.5% (DC Output)
 Dynamic Voltage Scaling                          Yes (Supports Intel/AMD Power States)
 Protection Features Over-Current (OCP), Over-Voltage (OVP), Over-Temperature (OTP), Under-Voltage Lockout (UVLO)
 Efficiency  >90% (Typical at Full Load)
 Operating Temperature -40°C to +105°C
 Package / Case 8-DFN
 Compliance RoHS, Halogen-Free
 Applications  Laptop/Server CPU/GPU VRM, High-Current DC/DC Systems
ISL95808HRZ-T MOSFET Driver, High Frequency Driver ChipDetails
The ISL95808HRZ-T is a high-frequency, dual MOSFET driver designed by Renesas, optimized for driving two N-Channel power MOSFETs in a synchronous-rectified buck converter topology.  It is particularly suited for mobile computing applications that demand high efficiency and excellent thermal performance.  Combined with a multiphase Buck PWM controller, it forms a complete single-stage core-voltage regulator solution for advanced mobile microprocessors.
Synchronous Rectified Buck Converter Features
The ISL95808HRZ-T boasts several key features that enhance its performance and versatility.  It supports a high switching frequency up to 2MHz, ensuring fast output rise and fall times with low propagation delay.  Each driver can handle a 3000pF load with propagation delays of 8ns and transition times under 10ns.  The device features adaptive shoot-through protection to prevent simultaneous conduction of both MOSFETs and includes a diode emulation feature that enhances converter efficiency at light load conditions.  Additionally, it offers very low shutdown supply current (5V, 3µA) to ensure low power consumption.
Applications
- Mobile Computing: Ideal for core voltage supplies in Intel® and AMD™ mobile microprocessors, where high efficiency and thermal performance are critical.
- Power Management: Suitable for high-frequency, low-profile DC/DC converters and high current, low output voltage DC/DC converters.
- Industrial Control: Can be used in servo motor control, PLC control, and industrial robots, enhancing system efficiency and reliability.
- Motor Drives: Applicable in BLDC motor drives and stepper motor drives for efficient and precise motor control.
- Automotive Electronics: Suitable for electric vehicle drive systems and automotive lighting systems, improving system efficiency and safety.
Selection Advantages
Choosing the ISL95808HRZ-T offers several benefits.  Its high switching frequency and low propagation delay make it suitable for applications requiring fast transient response.  The adaptive shoot-through protection and diode emulation feature enhance reliability and efficiency, especially under light load conditions.  Additionally, its low shutdown supply current ensures minimal power consumption, making it ideal for battery-powered devices.
Alternative MOSFET driver ICModels
While the ISL95808HRZ-T is a popular choice for high-frequency MOSFET drivers, there are alternative models available from other manufacturers.  For example, the MAX15060 from Maxim Integrated offers similar functionalities but with a different package option and slightly different voltage range.  Another alternative is the ADP3120A from Analog Devices, which provides robust performance in high-frequency switching applications.