Texas Instruments LM5022-Q1 | Demoboard TIDA-01429

Description

The TIDA-01429 reference design implements a discrete system basis chip (SBC) with wide-input voltage boost circuit with output voltage set to 8-V. The boost circuit is followed by a wide-input voltage buck converter with output voltage set to 5-V which used for powering a controller area network (CAN) transceiver and a compact, fixed 3.3-V linear drop-out (LDO) regulator for supplying the C2000™ microcontroller (MCU). This design has been tested for CISPR 25 radiated emissions per absorber lined shielded enclosure (ALSE) method, CISPR25 conducted emissions via the voltage method, and for immunity to bulk current injection (BCI) per ISO 11452-4, all with CAN communication operating at 500 KBPS. This design is a electromagnetic compliance (EMC) vetted, 3-stage power tree with CAN reference design that can be used in many automotive applications requiring operation with input voltages as low as 3.5 V.

Features

• Wide-Input Voltage Adjustable Boost Controller
• Wide-Input Voltage Adjustable Buck Converter
• Low-Input Voltage, Fixed 3.3-V LDO
• CAN Transceiver With Flexible Data-Rate (FD) up to 5 MBPS
• Passes Class 5 CISPR 25 Radiated Emissions Using ALSE Method
• Passes Class 4 CISPR 25 Conducted Emissions Using the Voltage Method
• Passes ISO 11452-4 Bulk Current Injection
• Able to Survive Load Dump Voltages up to 40 V
• Able to Survive Reverse Battery Voltages up to –40 V
• Maintains 5-V and 3.3-V Regulated Supplies Through Battery Input Voltages Down to 3.5 V

More information

• Datasheet
• IC product information