IXDN609SI
9A peak current non-inverting MOSFET driver, AEC-Q100 qualified. Cost-effective solution for standard gate drive applications without enable function.
Product Overview
Description
The Littelfuse IXDN609SI is a cost-effective 9A peak current non-inverting low-side gate driver designed for standard power electronics applications. This driver provides the same excellent drive capability as the IXDD609SI but without the enable function, making it ideal for applications where continuous operation is desired and cost optimization is important.
Featuring a wide operating voltage range of 4.5V to 35V and AEC-Q100 Grade 1 qualification, the IXDN609SI delivers reliable performance across the full automotive temperature range. The 9A peak current capability provides fast switching of IGBTs and MOSFets in the 50-150A range, while the <45ns rise and fall times minimize switching losses.
Packaged in a compact Power SOIC-8 with exposed pad, the IXDN609SI offers excellent thermal performance for its size. The driver's logic input withstands negative swings up to 5V, providing robust noise immunity. With its simplified feature set and competitive pricing, this driver is an excellent choice for cost-sensitive automotive and industrial applications where enable functionality is not required.
Product Series
IXD Series
Primary Application
Automotive DC/DC converters
Key Features
- 9A peak source/sink drive current capability
- Cost-effective non-inverting configuration
- Wide operating voltage range: 4.5V to 35V
- AEC-Q100 Grade 1 qualified for automotive
- Matched rise and fall times < 45ns
- Low 10µA supply current
- Logic input withstands negative swing up to 5V
- Power SOIC-8 package with exposed pad
Specifications
| peakCurrent | 9A |
|---|---|
| operatingVoltage | 4.5V - 35V |
| configuration | Non-Inverting |
| package | Power SOIC-8 |
| riseTime | < 45ns |
| fallTime | < 45ns |
| outputResistanceSource | 0.6Ω |
| outputResistanceSink | 0.4Ω |
| supplyCurrent | 10µA |
| operatingTemperature | -40°C to +125°C |
| qualification | AEC-Q100 |
Applications
Automotive DC/DC converters
Power conversion and supply
Brushless DC motor drives
Motor drive and control systems
Switching power supplies
Electronic system design
Appliance motor controls
Motor drive and control systems
LED drivers
Motor drive and control systems
Industrial control systems
Industrial automation and control
FAE Expert Insights
"The IXDN609SI is my recommendation when customers need a straightforward, cost-effective gate driver without the complexity of enable functionality. It's essentially the IXDD609SI without the enable pin, which simplifies the control interface and reduces cost slightly. I've specified this driver in numerous cost-sensitive automotive applications where the control system handles all the protection and power management functions externally. The performance is identical to the IXDD609SI - same 9A current, same switching speed, same AEC-Q100 qualification. The only difference is you can't disable the output via a pin. For many applications, this is perfectly fine. One thing I appreciate is the consistency with the IXDD series - same pinout for the active pins, same electrical characteristics, same reliability. This makes it easy to switch between variants based on project requirements. For thermal design, follow the same guidelines as IXDD609SI: good copper area for the exposed pad, proper decoupling, and Kelvin connection for the gate return."
Cost-effective 9A driver - same performance as IXDD609SI without enable function
— Michael Chen, BeiLuo
Frequently Asked Questions
When should I choose IXDN609SI over IXDD609SI?
Choose the Littelfuse IXDN609SI over the IXDD609SI when: (1) Cost Optimization - The IXDN609SI offers slightly lower cost for high-volume applications; (2) Simple Control - Your application doesn't require enable functionality; (3) Continuous Operation - The driver will always be active when powered; (4) Pin Compatibility - You need non-inverting operation without the enable pin complexity. Both drivers have identical electrical performance: 9A peak current, <45ns switching times, AEC-Q100 qualification, and the same package. The only difference is the IXDN609SI lacks the enable pin. If your control system handles all protection functions and you don't need to disable the driver independently, the IXDN609SI is the more straightforward choice. Many automotive DC/DC converter designs use IXDN609SI because the PWM controller manages all the fault protection and shutdown logic, making the driver's enable function redundant. For new designs, I typically recommend starting with IXDD609SI for flexibility, then switching to IXDN609SI for production if the enable function isn't used.
Choose IXDN609SI for cost-sensitive applications without enable requirements. Use IXDD609SI if you need the flexibility of enable control.
Can IXDN609SI and IXDI609SI be used together in half-bridge configuration?
Yes, the Littelfuse IXDN609SI (non-inverting) and IXDI609SI (inverting) are designed to work together in half-bridge and full-bridge configurations. This complementary pairing offers several advantages: (1) Single Input Drive - Both drivers can be driven from the same logic signal, with the IXDI609SI providing inverted drive for the low-side switch; (2) Simplified Control - No additional logic inversion required in the control circuit; (3) Matched Timing - Identical propagation delays ensure synchronous switching; (4) Consistent Performance - Same 9A current capability and switching characteristics. For half-bridge applications: Connect the PWM signal to both drivers' inputs. The IXDN609SI drives the high-side switch directly, while the IXDI609SI inverts the signal for the low-side switch. This ensures that both switches are never on simultaneously, preventing shoot-through. Add appropriate dead-time in the control logic to account for driver and switch propagation delays. For thermal management, both drivers have the same requirements - provide adequate copper area for the exposed pads and proper decoupling. This complementary pair is widely used in motor drives, inverters, and power supply applications.
Use IXDN609SI + IXDI609SI together for half-bridge and full-bridge applications. They provide matched complementary drive from a single control signal.
What is the difference between non-inverting and inverting gate drivers?
The difference between non-inverting and inverting gate drivers is in how the output relates to the input signal: (1) Non-Inverting (IXDN609SI) - Output follows the input: when input is high, output is high (switch turns ON); when input is low, output is low (switch turns OFF). This is the most common configuration and is intuitive for most control schemes; (2) Inverting (IXDI609SI) - Output is opposite to the input: when input is high, output is low (switch turns OFF); when input is low, output is high (switch turns ON). This is useful for complementary drive and certain control architectures. Choose non-inverting when: Your control logic is straightforward and you want the output to follow the input; You're driving a single switch or high-side of a half-bridge; Your PWM controller provides the correct polarity. Choose inverting when: You need complementary drive for half-bridge low-side; Your control signal has opposite polarity to what's needed; You're building discrete gate drive circuits with specific logic requirements. Both types have identical electrical drive capability - only the logic relationship between input and output differs. The Littelfuse IXD series offers both options with identical 9A current capability.
Choose non-inverting for standard applications where output follows input. Choose inverting for complementary drive or when your control logic requires inverted operation.