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Texas Instruments LM26420 | Demoboard PMP9492.1
CISPR 25 Class 5 Multi-Output Power Supply Reference Design for Rear Camera, Automotive ADAS Systems
Overview
| Topology | Buck Converter |
| Input voltage | 4.5-20 V |
| Output 1 | 3.3 V / 1 A |
| IC revision | E1 |
Description
PMP9492 is a conducted EMI optimized (CISPR 25 Class 5) 9 W Multi output Design for Wide Range Vin automotive ADAS application that supports Cold –Cranking Conditions . The design uses an LM53603 regulator IC (used as Buck), LM26420 (used as dual Buck) and TPS60150 regulator IC (used as Charge pump for 5V output). The design accepts an input voltage of 4.5Vin to 20Vin and provides the outputs of 3.3V @ 1.0A, 2.5V @ 1.0A, 1.8V @ 1.0A, and 5V @ 100mA. It features a small size and is an inexpensive and more efficient solution customized for ADAS and other Automotive related applications. The Board dimension of PMP9492 PCB is 2600mil × 4000mil. Four layer PCB was used for the design.
Features
- Triple Buck + Charge Pump for Lower Power Rear Camera ADAS Application
- In compliance with the CISPR 25 Class 5 conducted emissions standard, passing both AM & FM radio band tests
- All devices Switching frequency 2.1MHz
- EMI performance optimized layout
- Single Differential Filter for all the Switching Converters
- 4.5V to 20V wide Vin range- Supports Cold Cranking Conditions
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | L(µH) | IR(A) | ISAT(A) | RDC max.(Ω) | VT(V (AC)) | fres(MHz) | Version | Winding Style | Number of windings | L1(µH) | Z(Ω) | IR(mA) | RDC max.(Ω) | VR(V) | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-SPC SMT Power Inductor, 2.2 µH, 3 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-SPC SMT Power Inductor | Inductance2.2 µH | Rated Current3 A | Saturation Current4.6 A | DC Resistance0.03 Ω | – | Self Resonant Frequency85 MHz | VersionSMT | – | Number of windings9.5 | – | – | – | – | – | ||||
 | WE-SL5 HC SMT Common Mode Line Filter, 11 µH, 2.5 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-SL5 HC SMT Common Mode Line Filter | Inductance11 µH | Rated Current2.5 A | – | DC Resistance0.03 Ω | Insulation Test Voltage500 V (AC) | – | VersionSMT | Winding Stylesectional | Number of windings2 | Inductance [1]11 µH | Impedance1000 Ω | Rated Current2500 mA | DC Resistance [1]0.03 Ω | Rated Voltage80 V |