Overview
The DRV101FKTWTG3, produced by Texas Instruments, is a low-side power switch that employs a pulse-width modulated (PWM) output. This device is optimized for driving electromechanical devices such as solenoids, valves, relays, actuators, and positioners. It is also suitable for driving thermal devices like heaters and lamps. The DRV101 features a rugged design, making it ideal for various industrial and control applications. The PWM operation helps conserve power and reduce heat rise, enhancing the reliability of the device and the load it drives.
Key Specifications
| Parameter | Comments | MIN | TYP | MAX | UNITS |
|---|---|---|---|---|---|
| Output Saturation Voltage, Sink | IO = 1A | +0.8 | +1 | V | |
| Output Saturation Voltage, Sink | IO = 0.1A | +0.2 | +0.3 | V | |
| Current Limit | 1.9 | 2.3 | 3 | A | |
| Under-Scale Current | 23 | mA | |||
| Leakage Current | Output Transistor Off, VS = VO = +60V | ±0.01 | ±1 | mA | |
| Supply Voltage, VS | +9V | +60V | V | ||
| Operating Temperature Range | –40°C | +125°C | °C | ||
| Junction Temperature | +150°C | °C | |||
| PWM Frequency | 24kHz | kHz |
Key Features
- High Output Drive: Up to 2.3A
- Wide Supply Range: +9V to +60V
- PWM Output: With an internal 24kHz oscillator
- Digital Control Input: Compatible with standard TTL levels
- Adjustable Delay and Duty Cycle: Externally adjustable for customized operation
- Over/Under Current Indicator: Flag output for thermal shutdown and current limits
- Thermal Shutdown with Indicator: For protection against overheating
- Internal Current Limit: For preventing overcurrent conditions
- Packages: Available in 7-lead TO-220 and 7-lead surface-mount DDPAK
Applications
- Electromechanical Drivers: Solenoids, positioners, actuators, high power relays/contractors, valves, clutch/brake
- Fluid and Gas Flow Systems: Control of valves and pumps
- Industrial Control: Automation and control systems
- Factory Automation: Driving various electromechanical devices
- Part Handlers: In automated assembly lines
- Photographic Processing: Control of chemical flow and temperature
- Electrical Heaters: Temperature control and power management
- Motor Speed Control: For DC motors and other thermal devices
- Solenoid/Coil Protectors: Preventing overheating and overcurrent
- Medical Analyzers: Precise control of electromechanical components
Q & A
- What is the output current capability of the DRV101?
The DRV101 can drive up to 2.3A of output current.
- What is the supply voltage range for the DRV101?
The DRV101 operates from a supply voltage range of +9V to +60V.
- What is the PWM frequency of the DRV101?
The PWM frequency of the DRV101 is a constant 24kHz.
- How can the duty cycle of the DRV101 be adjusted?
The duty cycle can be adjusted using an external resistor, analog voltage, or the output of a D/A converter.
- What are the package options for the DRV101?
The DRV101 is available in 7-lead TO-220 and 7-lead surface-mount DDPAK packages.
- What is the operating temperature range of the DRV101?
The operating temperature range of the DRV101 is –40°C to +125°C.
- Does the DRV101 have thermal shutdown protection?
Yes, the DRV101 includes thermal shutdown protection with an indicator flag.
- How is the initial delay to PWM mode adjusted on the DRV101?
The initial delay to PWM mode can be adjusted using a capacitor connected to the Delay Adjust pin.
- What types of loads can the DRV101 drive?
The DRV101 can drive electromechanical devices such as solenoids, valves, relays, actuators, and thermal devices like heaters and lamps.
- Is the DRV101 suitable for industrial control applications?
Yes, the DRV101 is suitable for industrial control and factory automation applications due to its robust design and adjustable features.
