4 layers90 × 90 mm
2 layers22.4 × 18.5 mm
Helix Daughterboard
luantty2/Helix-Daughterboard2Helix daughterboard docs.
- Size
- 22.4 × 18.5 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 13
- Nets
- 20
- Pads
- 69
- Tracks, vias
- 126, 10
- Pours
- 3
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 17 Jan 2021
- Updated
- 17 Jan 2021
Overview
Helix Daughterboard is an open-source printed circuit board by luantty2, from the luantty2/Helix-Daughterboard repository on GitHub, published under the MIT licence. It is a 2-layer board of 22.4 × 18.5 mm with 13 parts on 20 nets, routed with 126 tracks and 10 vias.
It is built around the NCP361SN, TPD4E05U06DQAR and SM04B-SRSS-TB, with the U262-241N-4BV60 among its other parts. Its parts include 3 capacitors, 3 resistors, 3 ICs and 2 connectors. It belongs with the keyboards and input and interfaces and adapters boards of this library.
Main components
4
NCP361SN
TSOP-5-1.5mm-40℃~+85℃ 1 1.2V~20V 600mA Active Low 过压保护、欠压锁定、Overcurrent Protection、Over temperature protection TSOP-5-1.5mm Power Distribution Switches ROHSonsemiPower Distribution Switches
TPD4E05U06DQAR
USON-10-40℃~+125℃ 0.5pF 10nA 14V 2.5A@8/20us 40W@8/20us 5.5V 6.5V ESD Four channels IEC 61000-4-2、IEC 61000-4-5、IEC 61000-4-4 Unidirectional USON-10(1x2.5) ESD and Surge Protection (TVS/ESD) ROHSTexas InstrumentsESD Protection Devices
SM04B-SRSS-TB
Header SR 1.0 SMT side entry, 1mm pitchJSTUncategorised
U262-241N-4BV60
SMD-25℃~+80℃ 1 10.02mm 10000 times 20V 24P 3A Female Surface Mount, Right Angle Type-C SMD USB Connectors ROHSXKB ConnectionUSB Connectors
README
README.mdHelix Daughterboard
The helix daughterboard is a USB breakout board designed specifically for keyboards. The board integrates 11 components in a relatively small-sized PCB, and it's able to provide full protection for USB2.0 interface.
FEATURES
- IEC 61000-4-2 Level 4 ESD Protection
- VBUS UVLO, OVLO, OCP
DEATILS
-
J1 is the USB3.0 receptacle with a row of through-hole data pins, with which the receptacle can be soldered much more firmly. In addition, C1 must have the rated voltage ≥2KV.
-
U1 is the ONsemi NCP361, which is a single-chip solution for Undervoltage Lockout(UVLO), Overvoltage Lockout(OVLO) and Overcurrent Protection(OCP).
The overvoltage lockout threshold is typically 5.675V and overcurrent limit is internally set to 750mA.
The NCP361 itself complies to IEC61000−4−2 (Level 4), so place the device before U3 to keep VBUS voltage not violating TPD1E10B06's DC breakdown voltage(±6V).
-
U2 is TPD4E05U06 ESD and surge protection chip for USB data lines and CC pins.
-
U3 is TPD1E10B06 ESD and surge protection chip for VBUS power.
-
H1 and H2 are screw mounting holes, one of them is connected to USB shield.
BOM
| Designator | Comment | Package | LCSC PN |
|---|---|---|---|
| C1 | 1nF | 1210 | C173219 |
| C2 | 2.2uF | 0603 | C342993 |
| C3 | 1uF | 0603 | C76619 |
| J2 | SM04B-SRSS-TB | - | C160404 |
| R1 | 1M | 1206 | C205050 |
| R2, R3 | 5.1K | 0402 | C203181 |
| U1 | NCP361 | UDFN-6 | C233713 |
| U2 | TPD4E05U06DQAR | USON-10 | C138714 |
| U3 | TPD1E10B06 | X1SON-2 | C48260 |
| J1 | U262-241N-4BV60 | - | C388659 |
Parts
13| Qty | Value | Footprint | References |
|---|---|---|---|
| 2 | 5.1K | Resistor_SMD:R_0402_1005Metric | R2, R3 |
| 2 | M2 | MountingHole:MountingHole_2.2mm_M2_DIN965_Pad | H1, H2 |
| 1 | 1M | Resistor_SMD:R_1206_3216Metric | R1 |
| 1 | 1n | Capacitor_SMD:C_1210_3225Metric | C1 |
| 1 | 1u | Capacitor_SMD:C_0603_1608Metric | C3 |
| 1 | 2.2u | Capacitor_SMD:C_0603_1608Metric | C2 |
| 1 | NCP361 | digikey-footprints:UDFN-6-1EP_2x2mm | U1 |
| 1 | SM04B-SRSS-TB | Connector_JST:JST_SH_SM04B-SRSS-TB_1x04-1MP_P1.00mm_Horizontal | J2 |
| 1 | TPD1E10B06 | nrfmicro:X1SON-2 | U3 |
| 1 | TPD4E05U06DQAR | Package_SON:USON-10_2.5x1.0mm_P0.5mm | U2 |
| 1 | U262-241N-4BV60 | nrfmicro:USB3_C_Receptacle_HRO | J1 |
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Questions
How big is the Helix Daughterboard PCB?
It measures 22.4 × 18.5 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Helix Daughterboard use?
13 parts, built around the NCP361SN, TPD4E05U06DQAR, SM04B-SRSS-TB and U262-241N-4BV60. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Helix Daughterboard KiCad files?
From the luantty2/Helix-Daughterboard repository on GitHub, at the commit this page was made from: the board is Hardware/Helix-Daughterboard/Helix-Daughterboard.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Helix Daughterboard design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).