L9924：Vehicle network conform truck car alternator regulator for 24V Systems
The L9924 is a controlled multifunctional alternator regulator intended to be used in cars, commercial and agricultural vehicles, supporting 12 V and 24 V systems. The control can be achieved through different communication protocols: RCV, PCM, C_term. It is a System-In-Package solution with smart power alternator regulator IC coupled with a 8-bit microcontroller (non-monolithic approach). It includes the control section, fault diagnostic circuit which drives a warning lamp, and the protection against short circuits.
This device regulates in closed loop the output of an automotive generator by controlling the field winding current by means of a Pulse-Width Modulation (PWM) of an external high side or low side driver at fixed frequency.
Key Features
- AEC-Q100 qualified
- System in package smart power alternator regulator and 8-bit microcontroller (non-monolithic approach)
- Protected high/low side field pre-driver for external MOS
- Field short circuit protection
- Regulated voltage driven by ECU (programmable protocol driven)
- Regulated voltage thermally compensated (without protocol)
- Lamp driver (wake up and warning detection)
- Self start function
- Load response control (LRC)
- Field monitor (FM) output
- Thermal shutdown
- Package TQFP44EP (10 x 10 mm)
Product Specifications
Application Notes
Sample & Buy
| Part Number | Package | Packing Type | Operating Temperature (°C) (min) | Operating Temperature (°C) (max) | Unit Price (US$)
* | Quantity | ECCN (EU) | ECCN (US) | Country of Origin |
|---|
| L9924TR | TQFP 44 10x10x1.0 | Tape And Reel | -40 | 150 | - | - | NEC | EAR99 | - |
Quality & Reliability
| Part Number | Package | Grade | RoHS Compliance Grade | Material Declaration** |
|---|
| L9924TR | TQFP 44 10x10x1.0 | Automotive | Ecopack2 | |
