Reference Designs
10-A automotive pre-regulator reference design with extended input voltage range for trucks
Texas Instruments
This reference design is a 50-W synchronous buck converter to supply automotive loads. The IC is LM5146-Q1 in fixed frequency operation at 250 kHz to ensure low noise operation. This IC (LM5146-Q1) is designed for automotive with the ability to handle load dump for truck applications. A resistor-capacitor (RC) snubber attenuates noise in the RF band to reduce radiated emissions. To reduce system EMI: the design is prepared to either synchronize other converters (output) or be externally synchronized (input).
Features
- Power stage withstands surge voltages up to 75 VpkEfficiency higher than 93% over a output current range of 3 A to 10 A (at 14 V input voltage)Tight load regulation results in a low deviation (3 mV) of the output voltage over the whole range of the input voltageInput filter for minimizing conducted emissions is included
Applications
- Auxiliary-power supplies
Product Categories
- Power management
End Equipment Reference Diagrams
Application Area
End Equipment
Featured products
| Manufacturer: | Texas Instruments |
|---|---|
| Part Family: | DP83TC811-Q1 |
| Status: | ACTIVE |
| ROHS: | Y |
| PB Free: | Y |
| Manufacturer: | Texas Instruments |
|---|---|
| Part Family: | UCC15240-Q1 |
| Status: | ACTIVE |
| ROHS: | Y |
| PB Free: | Y |
| Manufacturer: | Texas Instruments |
|---|---|
| Part Family: | TMP1827 |
| Status: | ACTIVE |
| ROHS: | Y |
| PB Free: | Y |
| Manufacturer: | Texas Instruments |
|---|---|
| Part Family: | SN74AHC1G02-Q1 |
| Status: | ACTIVE |
| ROHS: | Y |
| PB Free: | Y |
| Manufacturer: | Texas Instruments |
|---|---|
| Part Family: | DLP301S |
| Status: | ACTIVE |
| ROHS: | Y |
| PB Free: | Y |
| Manufacturer: | Texas Instruments |
|---|---|
| Part Family: | TMUXHS221LV |
| Status: | ACTIVE |
| ROHS: | Y |
| PB Free: | Y |
