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L9777 from ST,ST Microelectronics

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L9777

Manufacturer: ST

Low power voltage regulator

Partnumber Manufacturer Quantity Availability
L9777 ST 844 In Stock

Description and Introduction

Low power voltage regulator **Part L9777 Manufacturer: STMicroelectronics**  

### **Specifications:**  
- **Manufacturer:** STMicroelectronics  
- **Part Number:** L9777  
- **Type:** Automotive Integrated Circuit (IC)  
- **Function:** Dual High-Side Driver with SPI Interface  
- **Operating Voltage Range:** 4.5V to 28V  
- **Output Current:** Up to 1.5A per channel  
- **Number of Channels:** 2 (Dual High-Side Drivers)  
- **Communication Interface:** SPI (Serial Peripheral Interface)  
- **Protection Features:** Overcurrent, Overtemperature, Short-Circuit, and Undervoltage Protection  
- **Package:** PowerSSO-36  
- **Operating Temperature Range:** -40°C to +150°C  
- **Compliance:** AEC-Q100 Qualified (Automotive Grade)  

### **Descriptions:**  
The **L9777** is a dual high-side driver IC designed for automotive applications, providing robust and reliable switching for loads such as solenoids, lamps, and motors. It features an SPI interface for diagnostics and control, making it suitable for advanced automotive systems requiring precise load management.  

### **Features:**  
- Dual independent high-side drivers with 1.5A capability per channel.  
- **SPI Interface** for configuration and diagnostics.  
- **Integrated Protection:** Overcurrent, overtemperature, short-circuit, and undervoltage lockout.  
- **Low Standby Current** for energy efficiency.  
- **Diagnostic Feedback** via SPI (open-load, short-to-ground, short-to-battery detection).  
- **AEC-Q100 Qualified** for automotive reliability.  
- **Wide Operating Voltage (4.5V to 28V)** for compatibility with 12V and 24V systems.  

This IC is commonly used in automotive body control modules, power distribution units, and other systems requiring high-side switching with diagnostics.

Application Scenarios & Design Considerations

Low power voltage regulator

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