MC33797BPEWR2

Product Overview

• Category: Integrated Circuit (IC)
• Use: Automotive Body Electronics
• Characteristics: High-performance, low-power LIN System Basis Chip (SBC)
• Package: 32-pin Power Enhanced TSSOP package
• Essence: Provides a complete solution for LIN network nodes in automotive applications
• Packaging/Quantity: Available in tape and reel packaging, quantity varies based on customer requirements

Specifications

• Operating Voltage: 5.0 V to 27 V
• Operating Temperature Range: -40°C to +125°C
• LIN Transceiver: Compliant with LIN 2.x and SAE J2602 standards
• Microcontroller Interface: SPI or SCI interface options
• Current Consumption: Low quiescent current of 50 μA in sleep mode
• Protection Features: Overvoltage, undervoltage, and overtemperature protection
• Diagnostic Features: Comprehensive fault detection and reporting capabilities

Detailed Pin Configuration

The MC33797BPEWR2 features a 32-pin Power Enhanced TSSOP package with the following pin configuration:

1. VBAT: Battery voltage supply input
2. GND: Ground reference
3. TXD: LIN transceiver data output
4. RXD: LIN transceiver data input
5. WAKE: Wake-up input
6. EN: Enable input
7. CS: Chip select input
8. SCLK: Serial clock input
9. MISO: Master In Slave Out data input
10. MOSI: Master Out Slave In data output
11. IRQ: Interrupt request output
12. VDD: Positive supply voltage input
13. VREG: Internal voltage regulator output
14. VOUT: Regulated voltage output
15. VREF: Reference voltage output
16. LIN1: LIN transceiver input/output 1
17. LIN2: LIN transceiver input/output 2 18-32. NC: No connection

Functional Features

• LIN Transceiver: Provides bidirectional communication between the microcontroller and the LIN bus
• Voltage Regulator: Generates regulated voltage for internal circuitry and external components
• Wake-up Input: Allows the device to enter low-power sleep mode and wake up upon receiving a specific signal
• Interrupt Request Output: Signals the microcontroller when an event or fault condition occurs
• Diagnostic Capabilities: Detects and reports faults such as short circuits, open circuits, and overtemperature conditions
• SPI/SCI Interface: Offers flexible communication options with the microcontroller

Advantages and Disadvantages

Advantages: - High-performance LIN System Basis Chip for automotive applications - Compliant with industry standards for reliable communication - Low power consumption in sleep mode for energy efficiency - Comprehensive fault detection and reporting capabilities - Flexible interface options for easy integration with microcontrollers

Disadvantages: - Limited pin count may restrict the number of peripherals that can be connected directly

Working Principles

The MC33797BPEWR2 is designed to provide a complete solution for LIN network nodes in automotive body electronics. It integrates a LIN transceiver, voltage regulator, and diagnostic features into a single chip. The LIN transceiver facilitates communication between the microcontroller and the LIN bus, enabling control and monitoring of various automotive functions. The voltage regulator ensures stable power supply to the internal circuitry and external components. The diagnostic capabilities detect and report faults, enhancing system reliability.

Detailed Application Field Plans

The MC33797BPEWR2 is widely used in automotive body electronics applications, including but not limited to:

1. Central Door Locking Systems
2. Window Control Systems
3. Seat Control Systems
4. Mirror Control Systems
5. Lighting Control Systems

Detailed and Complete Alternative Models

1. MC33797BPEW: Similar to MC33797BPEWR2, but without reel packaging option
2. MC33797BP: Similar functionality in a different package (e.g., SOIC)
3. MC33661BPEF: LIN System Basis Chip with additional features for more complex applications

Note: The above list is not exhaustive, and alternative models may vary based on specific requirements and availability.

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