onsemi FUSB15201 Dual-Port Source USB Type-C PD Controller Evaluation Board User Manual
- June 4, 2024
- onsemi
Table of Contents
FUSB15201 Dual-Port
Source USB Type-C PD
Controller Evaluation Board
User’s Manual
FUSB15201EVBUM
Introduction
The FUSB15201 evaluation board, in conjunction with firmware and software,
provides a platform to evaluate a full dual−port Type−C/PD system. The
FUSB15201 integrates an ARM ® Cortex−M0+ processor with customized peripherals
and supports a fully standalone application with only a power supply.
Description
The FUSB15201 Evaluation kit is designed to support the full features of
dual−port Type−C/PD Source applications for FUSB15201 with a single battery
(typ 13.5 V) or power supply, primarily targeting automotive charger
applications.
The Evaluation kit is designed to control two individual VBUS outputs from the
NCV81599, a buck/boost DC−DC power converter.
All components are AEC-qualified.
This manual provides information about the evaluation board’s interconnection,
hardware setting, communication to PC, and detailed information on the board
design data.
Key EVB Features
- 20 W, Configurable up to 200 W
-
94% Efficiency
- Solution Size: 1.7” x 1.9” (20.8cm²) / 1.7” x 1.5” (16.5 cm²) ActiveArea
- Power Density: 5.77 W/cm² or 7.27 W/cm
- Highest Board Temperature: 98.061°C at 22°C Ambient at Full Load
- VBUS Output Current Sense
- VBAT Reverse Current Protection
15201 Features
- ARM Cortex−M0+ Processor
- 132 KB / 6 KB Flash Memory/SRAM
- Integrated VCONN Switch for E−Marked Cables
- Supports Low Power Mode (Idle/ Sleep)
- BC1.2 (SDP, DCP, CDP)/ Apple Divider Mode
- 10-bit ADC for Voltage and General Purpose
- Over Voltage / Over Temperature Protection
- I2C Master/Slave
- SWD Interface for Debugging
- Temperature Sensing using NTC
FUSB15201EVBUM
This Evaluation board is designed to provide a ready−to−use solution for a
dual−port Type−C/PD Charging port application. All components are
appropriately selected from automotive-qualified devices and capable of
operating up to 125°C.
DETAILED DESCRIPTION OF EACH BLOCK
Power Stage
All power components are selected to drive output power up to 100 W per port
(20 V / 5 A) if thermal performance is under control. Due to the limited PCB
size and the space between each heat-dissipating component, the initial
firmware will provide support for up to 60 W per port (120 W = 2 x 60 W) under
control of the hottest board spot to lower than 100°C. In case higher output
power is desired, it is recommended to perform re−sizing of the PCB design
with thicker copper planes (>2 oz) for the top and bottom layers and to
maintain enough space between heat-dissipating components (FET switches). This
board is designed to fit into an application that has limited space,
reflecting customer demand for charging ports in automotive cabin areas.
DC−DC Converter
NCV81599 is used as DC to DC converter controller with NVTFS5C460NL and
NVTFS5C471NL for FET switches for Buck and Boost mode respectively. Power
Inductor
(3.3 H, ETQP6M3R3YLC) is selected for driving output current up to 5.0 A.
In the Unattached state, FUSB15201 controls
EN_1/EN_2 to logic Low which maintains the NCV81599 power−off state for
minimizing power consumption. In this state, NCV81599 has no I2C register
accessibility. All
register values in NCV81599 will reset upon EN_x returning to logic High.
Each NCV81599 ADDR pin is set to a different I2C slave address.
Temperature Sensing
Figure 3.
NTCs (RT1/ RT2) are initially populated nearby the area where the hi−side
boost mode FETs (Q1 and Q3) are located.
Temperature read data from these spots indicate the hottest temperatures on
the entire board area. If the ambient temperature is a higher concern than the
FET switch, depopulate RT1 and RT2 and populate RT3 (not populated by
default). RT3 is placed at the center between the two Type−C ports, and the
temperature reading value will indicate the ambient board temperature between
these two Type−C ports.
Output VBUS Current Sense
Current sense amplifiers (NCV213R) with 3 sense resistors are in the circuit
for filtered VBUS current measurement. The amplified voltage (x50) goes to
CSA_OUT_1/2 for ADC reading. (3m x 5.0 A x 50 = 750 mV @ 5.0 A loading)
J−Link Interconnect
GPIO2/SWD is being shared between EN_2, which enables NCV81599, and SWD for
J−Link debug or download. A 3−pad 0 option (R48) sets the connection to EN_2
by default, so FUSB15201 can enable or disable NCV81599. When it is desired to
connect to the SWD interface using J−Link, move the 0 connection to SWD, then
return the connection to EN_2 when the firmware download is complete.
The firmware enables the use of SWD for connection to a J−Link debugger if R48
is configured to SWD. Note that if a sink is attached to Port 2, the firmware
will disable SWD. Input/Output Voltage Measurement VBAT_F, VBUS_1_F, and
VBUS_2_F are routed at the point of source/load as sensing input/output
voltage. These can be used for accurate voltage measurement with minimum
impact of voltage change by trace impedance, which can be used for efficiency
measurements.
Legacy BC1.2 Charging Port Support
FUSB15201 is capable of supporting a legacy charging port (Battery Charging 1.2 and voltage divider mode) through a built−in voltage/resistor divider. The built−in circuit uses HVDP/DM pins for mimicking a legacy charging port. This evaluation board uses the HVDP pin for moisture sensing and the HVDM pin for CSA (Current Sense Amplifier) monitoring by default. An external 0 resistor is placed between HVDP and HVDM for DCP (Dedicated Charging Port) configuration.
-
Configuration for DCP with Moisture sensing on HVDP and CSA monitor on HVDM (Default):
♦ R1 (PortA) & R3 (PortB): Not Populated
♦ R18 (PortA) & R7 (PortB): 100Ω (~200Ω
♦ R4 (PortA) & R5 (PortB): 0Ω -
Configuration for BC1.2 charging port (CDP/DCP) or voltage divider mode:
♦ R1 (PortA) & R3 (PortB): 0Ω
♦ R18 (PortA) & R7 (PortB): Not populated.
♦ R4 (PortA) & R5 (PortB): Not populated.
CC/ VBUS Plot upon Accessory Plug−in
Thermal Performance 120 W (60 W + 60 W)
Conditions
-
Thermal Camera: FLIR SC7000
-
Room temperature: 22°C
-
VBAT power supply: 14 V / 15 A(limited) from BK9202
♦ Voltage drop across cable is compensated at the point of VBAT_IN -
VBUS contract: 20 V / 3.0 A
-
Sink loader
♦ Sink Accessories: 2 x FUSB307B Evaluation Board
♦ Electronic loader: 2 x PLZ164WA (Constant Current mode)
♦ power out is measured at VBUS1_F and VBUS2_F on FUSB15201 EVB after 5 mins -
Aging time: > 1 hour after full loading
Result
- Highest temperature: 98.061°C (high side FET switch for boost mode)
- Efficiency measurement: 94.55%
(Pout/Pin = 117.58 W / 124.36 W)
♦ PVBATin: 124.36 W = 12.969 V x 9.5888 A
♦ PVBUS_A: 58.47 W = 19.46 V x 3.005 A
♦ PVBUS_B: 59.11 W = 19.68 V x 3.004 A
♦ PVBUStotal: 117.58 W = 58.47 W + 59.11 W
onsemi DEVICE LINKS
| Device | Description |
|---|---|
| SZESD7241 | ESD |
Protection Diode Ultra Low Capacitance
SZESD7361| ESD
Protection Diode
SZMM3Z18VT1G| Generic
SOD−323 Zener Diode
NVTFS5C471NL|
Generic u8FL DFN−5 N−Channel Power MOSFET
NVTFS5C460NL|
Generic u8FL DFN−5 N−Channel Power MOSFET
NVMFS5A140PLZ|
Generic SO8−FL DFN−5 P−Channel Power MOSFET
NCV213R| Current−Shunt
Monitor, Voltage Output, Bi−Directional Zero−Drift, Gain = 50V/V
FUSB15201| Dual Port
USB Type−C & PD Controller
NCV81599| 4 Switch
Buck−Boost
NCV8730BMTW500| LDO
Regulator, 150 mA, 38 V max input, 1 A IQ, with PG Automotive
Other References
FUSB15201 Flash Programming Guide
UM70056/D.
FUSB15201 + NCV81599
USB−PD DUAL PORT
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