Overview
The L6370D, produced by STMicroelectronics, is a monolithic intelligent power switch utilizing Multipower-BCD Technology. It is designed to drive inductive or resistive loads, making it particularly suitable for industrial automation applications. The device features an internal clamping diode for fast demagnetization of inductive loads and includes extensive electrical protections and diagnostic capabilities for CPU feedback, enhancing its ruggedness and reliability.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Output Current | 2.5 A | A |
| Supply Voltage Range | 9.5 V to 35 V | V |
| Operating Temperature Range | -25 to +85 °C | °C |
| Package | PowerSO-20 | |
| Internal Current Limiting | Typically 3.2 A | A |
| Thermal Shutdown | 135 to 150 °C | °C |
| Open Ground Protection | Yes | |
| Internal Negative Voltage Clamping | VS - 50 V | V |
| Differential Inputs | Large common mode range and threshold hysteresis | |
| Undervoltage Lockout | With hysteresis | |
| Open Load Detection | Yes | |
| Diagnostic Outputs | Two diagnostic outputs (DIAG1, DIAG2) | |
| Output Status LED Driver | Yes | |
| Non-Dissipative Short Circuit Protection | Yes | |
| Protection Against Surge Transient | IEC 61000-4-5 compliant | |
| Immunity Against Burst Transient | IEC 61000-4-4 compliant | |
| ESD Protection | Human body model ±2kV |
Key Features
- 2.5 A output current capability
- Supply voltage range of 9.5 V to 35 V
- Internal current limiting and thermal shutdown for protection
- Open ground protection and internal negative voltage clamping for fast demagnetization of inductive loads
- Differential inputs with large common mode range and threshold hysteresis
- Undervoltage lockout with hysteresis
- Open load detection and two diagnostic outputs
- Output status LED driver
- Non-dissipative short circuit protection
- Protection against surge and burst transients (IEC 61000-4-5 and IEC 61000-4-4 compliant)
- ESD protection (human body model ±2kV)
Applications
The L6370D is particularly suited for industrial automation applications due to its robust design and extensive protection features. It can be used in various industrial environments to drive inductive or resistive loads, such as motors, solenoids, and other high-current devices. Additionally, its diagnostic capabilities make it ideal for applications requiring real-time monitoring and feedback.
Q & A
- What is the output current capability of the L6370D?
The L6370D can handle up to 2.5 A of output current.
- What is the supply voltage range for the L6370D?
The supply voltage range is from 9.5 V to 35 V.
- Does the L6370D have internal current limiting?
Yes, the L6370D features internal current limiting, typically set at 3.2 A.
- What kind of thermal protection does the L6370D have?
The device has thermal shutdown protection, with a junction temperature limit of 135 to 150 °C.
- How does the L6370D protect against inductive load demagnetization?
The device includes an internal clamping diode for fast demagnetization of inductive loads.
- What are the diagnostic capabilities of the L6370D?
The L6370D has two diagnostic outputs (DIAG1 and DIAG2) that report various operating conditions, including short circuits, under voltage, over temperature, and open load conditions.
- Is the L6370D protected against surge and burst transients?
Yes, the device is compliant with IEC 61000-4-5 for surge transients and IEC 61000-4-4 for burst transients.
- Does the L6370D have ESD protection?
Yes, the device has ESD protection according to the human body model ±2kV.
- What is the operating temperature range of the L6370D?
The operating temperature range is from -25 to +85 °C.
- What package options are available for the L6370D?
The L6370D is available in the PowerSO-20 package.
