Overview
The TDE1747FP, produced by STMicroelectronics, is a monolithic comparator designed for high current and high voltage applications. It is specifically tailored to drive lamps, relays, and stepping motors. This device operates over a wide range of supply voltages, from standard ±15V operational amplifier supplies to single +12V or +24V used in industrial electronic systems. The TDE1747FP is essentially blow-out proof, featuring current limiting to ensure safe peak output current values and thermal shutdown to prevent overheating. Adjustment of the short-circuit protection requires only one external resistor, making it a versatile and reliable component for various industrial applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage | 8 to 45 | V |
| Input Voltage | 50 | V |
| Differential Input Voltage | 50 | V |
| Output Current | 1 | A |
| Operating Free–air Temperature Range | -25 to 85 | °C |
| Storage Temperature Range | -65 to 150 | °C |
| Package | SO14 | |
| Packing | Tube | |
| RoHS Compliant | Ecopack2 (**) | |
| Grade | Industrial |
Key Features
- Open ground protection
- High output current
- Adjustable short-circuit protection to ground
- Thermal protection with hysteresis to avoid intermediate output levels
- Large supply voltage range: +8V to +45V
- Short-circuit protection to VCC
- Current limiting to limit peak output current to safe values
- Thermal shutdown to prevent excessive heating
Applications
- Industrial PC peripheral input/output
- Interface circuit
- Relay and lamp driver
- Stepping-motor driver
Q & A
- What is the primary function of the TDE1747FP?
The TDE1747FP is a monolithic comparator designed to drive lamps, relays, and stepping motors in high current and high voltage applications.
- What is the operating voltage range of the TDE1747FP?
The device operates over a supply voltage range of +8V to +45V.
- What kind of protection does the TDE1747FP offer?
The TDE1747FP offers open ground protection, adjustable short-circuit protection to ground, thermal protection with hysteresis, and short-circuit protection to VCC.
- How does the TDE1747FP prevent overheating?
The device features thermal shutdown to prevent excessive heating if internal dissipation becomes too high.
- What is the maximum output current of the TDE1747FP?
The maximum output current is 1 A.
- What is the operating temperature range of the TDE1747FP?
The operating free–air temperature range is -25°C to 85°C.
- Is the TDE1747FP RoHS compliant?
- What package types are available for the TDE1747FP?
The TDE1747FP is available in SO14 and DIP-8 packages.
- How is the short-circuit protection adjusted on the TDE1747FP?
The short-circuit protection can be adjusted using only one external resistor.
- What are some typical applications of the TDE1747FP?
Typical applications include industrial PC peripheral input/output, interface circuits, relay and lamp drivers, and stepping-motor drivers.
