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STMicroelectronics STCH02 | Demoboard STEVAL-USBPD45H
Getting started with the 45 W wall adapter solution for USB adapter solution for USB Type-C Power Delivery
Overview
| Topology | Flyback Converter |
| Input voltage | 85-264 V |
| Switching frequency | 260 kHz |
| Output 1 | 15 V / 3 A |
| IC revision | 1 |
Description
This board has been physically tested and validated; it is not for sale.This USB Power Delivery wall adapter is a USB-IF certified solution with a 45 W isolated power supply with USB Power Delivery controller.This USB Type-C PD wall power adapter design is for universal line voltage applications based on the STCH02 Primary controller and STUSB4700 USB PD controller.The 5 V, 9 V and 15 V USB output voltage profiles all have a 3 A rating.The offline power supply is implemented in an isolated flyback topology based on the STCH02 quasi-resonant controller with ultra-low standby power consumption. The USB Power Delivery (PD) is managed by the STUSB4700 and is Type-C compatible: power negotiation, Vbus discharge, protections, etc. are entirely managed by the IC.The USB power supply architecture connects a power board with a controller board. This design optimizes the form factor and lets you scale the power section up or down to suit different USB Power Adapter applications.
Features
- USB wall power adapter input: 85 VAC to 264 VAC
- USB voltage output: 5 V, 9 V and 15 V
- Current limit: 3 A for all voltage level profiles
- Load power limited to 45 W
- Cable compensation
- Isolated quasi-resonant flyback
- Efficiency 90% (approx.)
- USB Type-C Power Delivery compatible
- USB-IF certified
Typical applications
- AC-DC chargers for smartphones, tablets, camcorders and other handheld equipment
- AC/DC adapters for STB, notebooks and auxiliary power supplies
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | IR(A) | L(mH) | RDC max.(mΩ) | VR(V (AC)) | VT(V (AC)) | Material | L(mm) | W(mm) | H(mm) | Mount | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-CMB Common Mode Power Line Choke, 0.7 A, 10 mH | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-CMB Common Mode Power Line Choke | Rated Current0.7 A | Inductance10 mH | DC Resistance350 mΩ | Rated Voltage250 V (AC) | Insulation Test Voltage1500 V (AC) | MaterialMnZn | Length15 mm | Width7.5 mm | Height18 mm | MountTHT | ||||
 | WE-CMB NiZn Common Mode Power Line Choke, 1.5 A, 0.1 mH | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-CMB NiZn Common Mode Power Line Choke | Rated Current1.5 A | Inductance0.1 mH | DC Resistance80 mΩ | Rated Voltage250 V (AC) | Insulation Test Voltage1500 V (AC) | MaterialNiZn | Length16 mm | Width7.5 mm | Height17.5 mm | MountTHT |