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Texas Instruments LM63615-Q1 | Demoboard PMP22030
Efficient, low-heat, CISPR 25 class 5-compliant power reference design for infotainment display
Overview
| Topology | Buck Converter |
| Input voltage | 8-18 V |
| Switching frequency | 250-2200 kHz |
| Output 1 | 5 V / 1.5 A |
| IC revision | E1 |
Description
This reference design is focused on the power tree for an automotive infotainment display unit covering various power supply rails including two off-battery converters providing 5.0-V and 3.3-V, and intermediary system rails of 1.8-V and 1.1-V. The test results demonstrate high efficiency, low heat dissipation and CISPR 25 class 5-conducted emissions compliance.
Features
- Hardware tested automotive infotainment display unit power tree passing CISPR 25 class 5-conducted EMI limits
- All switching converters operating above 2-MHz to avoid AM band
- High light load efficiency to reduce standby current consumption
- Less than 30oC temperature rise under full load current conditions for all switching converters
- Stable converter operation with over 65o phase margin and over 20-dB gain margin
Typical applications
- Automotive infotainment: telematics control unit / Automotive body: gateway / Automotive ADAS: mirror replacement/CMS
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | L(µH) | ISAT,10%(A) | ISAT,30%(A) | RDC max.(mΩ) | fres(MHz) | IRP,40K(A) | Mount | Winding Style | Number of windings | L1(µH) | Z(Ω) | IR(mA) | RDC max.(Ω) | VR(V) | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-MAIA SMT Power Inductor, 2.2 µH, 2.75 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-MAIA SMT Power Inductor | Inductance2.2 µH | Saturation Current @ 10%2.75 A | Saturation Current @ 30%5.55 A | DC Resistance80 mΩ | Self Resonant Frequency42 MHz | Performance Rated Current3.6 A | MountSMT | Winding Stylebifilar | Number of windings11 | – | – | – | – | – | ||||
 | WE-SL5 HC SMT Common Mode Line Filter, 11 µH, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-SL5 HC SMT Common Mode Line Filter | Inductance11 µH | – | – | DC Resistance30 mΩ | – | – | MountSMT | Winding Stylesectional | Number of windings2 | Inductance [1]11 µH | Impedance1000 Ω | Rated Current2500 mA | DC Resistance [1]0.03 Ω | Rated Voltage80 V |