Overview
The TDE1897R, produced by STMicroelectronics, is a monolithic Intelligent Power Switch (IPS) designed in Multipower BCD Technology. This device is intended for driving inductive or resistive loads and features an internal clamping diode for fast demagnetization of inductive loads. It is equipped with extensive electrical protections, making it inherently robust and suitable for general-purpose industrial applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage (VS) | 18 to 35 | V |
| Output Current (IO) | 0.5 A | A |
| Internal Current Limiting | Internally limited | - |
| Thermal Shutdown | 135 to 150°C | °C |
| Open Ground Protection | Yes | - |
| Undervoltage Threshold 1 (Vsth1) | 11 V | V |
| Undervoltage Threshold 2 (Vsth2) | 15.5 V | V |
| Supply Voltage Hysteresis (Vshys) | 0.4 to 3 V | V |
| Input Threshold Voltage (Vith 7-8) | 0.8 to 2 V | V |
| Operating Temperature Range (Tamb) | -25 to +85°C | °C |
| Storage Temperature (Tstg) | -55 to 150°C | °C |
Key Features
- Internal current limiting and thermal shutdown for enhanced protection.
- Open ground protection and undervoltage lockout with hysteresis.
- Differential inputs with large common mode range and threshold hysteresis.
- Internal negative voltage clamping for fast demagnetization of inductive loads.
- Two diagnostic outputs for monitoring the device status.
- Output status LED driver for visual feedback.
- Open load detection and short circuit to ground detection.
Applications
The TDE1897R is suitable for a variety of industrial applications, including but not limited to:
- Driving inductive or resistive loads.
- General-purpose industrial control systems.
- Automotive systems requiring robust power switching.
- Industrial automation and machinery.
Q & A
- What is the supply voltage range for the TDE1897R?
The supply voltage range is from 18V to 35V.
- What is the maximum output current of the TDE1897R?
The maximum output current is 0.5 A.
- Does the TDE1897R have thermal shutdown protection?
Yes, it has thermal shutdown protection with a threshold between 135°C and 150°C.
- What is the operating temperature range of the TDE1897R?
The operating temperature range is from -25°C to +85°C.
- Does the TDE1897R have diagnostic outputs?
Yes, it has two diagnostic outputs for monitoring the device status.
- What is the purpose of the internal clamping diode in the TDE1897R?
The internal clamping diode is for fast demagnetization of inductive loads.
- Does the TDE1897R have open load detection?
Yes, it has open load detection capability.
- What is the storage temperature range for the TDE1897R?
The storage temperature range is from -55°C to 150°C.
- Does the TDE1897R have undervoltage lockout with hysteresis?
Yes, it has undervoltage lockout with hysteresis.
- What are the typical packages available for the TDE1897R?
The TDE1897R is available in Minidip, SIP9, and SO20 packages.
