# QrisPaymentSoundBox ## Description QrisPaymentSoundBox with Soft-Latch Power, Side Controls, and VBUS-Gated EN ## Project Details - **Owner:** devstat - **Created:** 12/9/2025 - **Last Updated:** 12/10/2025 - **Visibility:** Public - **System Architecture:** ```mermaid flowchart TD subgraph Protection_Subsystem USBIN["USB Input"] --> GT["GT-USB-7007B"] --> SLM["SLM6400"] --> SMBJ["SMBJ5.0CA"] --> PESD["PESD5V0U2BT"] --> USBPROT_OUT["Protected USB"] end subgraph Power_Subsystem USBPROT_OUT --> SY["SY8208BQNC Buck"] BATTERY["Battery"] --> SY SY --> V33["3.3V Rail"] end subgraph SoftLatch_Subsystem BATTERY --> BTN["Power Button"] BTN --> Q2["2N7002"] Q2 --> GateNode["Soft-Latch Gate Node"] GateNode -->|2s RC| AO4407["AO4407A PFET"] AO4407 --> VBATSW["VBAT_SW"] end subgraph Controls_Subsystem V33 --> VOLUP["VOL_UP Button\n(IO32)"] VOLUP --> R1["10k Ohm Pull-up"] --> V33 VOLUP --> C1["100nF Debounce"] --> GND["GND"] V33 --> VOLDN["VOL_DN Button\n(IO33)"] VOLDN --> R2["10k Ohm Pull-up"] --> V33 VOLDN --> C2["100nF Debounce"] --> GND end subgraph PMIC_Subsystem VBUS["VBUS"] --> EN_GATE["EN Gate"] --> U5EN["U5 EN"] VBUS --> U5IN["U5 VIN"] U5IN --> U5["MP2315SGJ"] U5 --> V33 end ``` ## Key Components ### D1 — [SMBJ5.0CA-TR](https://www.flux.ai/lcsc/smbj5p0ca-tr~dop2.md) - JLCPCB Part Class: Extended Part - Product Info Url: https://lcsc.com/product-detail/TVS_STMicroelectronics_SMBJ5-0CA-TR_SMBJ5-0CA-TR_C133658.html - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2304140030_STMicroelectronics-SMBJ5-0CA-TR_C133658.pdf - Manufacturer Part Number: SMBJ5.0CA-TR - Manufacturer Name: ST(意法半导体) - LCSC Part Number: C133658 - Part Type: TVS - Package or Case Code: SMB_L4.6-W3.6-LS5.3-BI **Pins:** - 1 [pin 1] - 2 [pin 2] ### D2 — [PESD5V0L2BT](https://www.flux.ai/lcsc/pesd5v0l2bt~0czn.md) - Manufacturer Name: TECH PUBLIC(台舟) - Part Type: Diodes - ESD - LCSC Part Number: C2858724 - Manufacturer Part Number: PESD5V0L2BT - JLCPCB Part Class: Extended Part - Package or Case Code: SOT-23-3_L2.9-W1.3-P0.95-LS2.4-BR **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] ### IC1 — [PCM5101AQPWRQ1](https://www.flux.ai/adrian95/pcm5101aqpwrq1~qev.md) - Manufacturer Name: Texas Instruments - License: https://creativecommons.org/licenses/by/4.0/ - Package or Case Code: SOP65P640X120-20N - Manufacturer Part Number: PCM5101AQPWRQ1 - Part Type: Integrated Circuit - Datasheet URL: http://www.ti.com/lit/gpn/pcm5101a-q1 **Pins:** - AGND [pin 9] - AVDD [pin 8] - BCK [pin 13] - CAPM [pin 4] - CAPP [pin 2] - CPGND [pin 3] - CPVDD [pin 1] - DEMP [pin 10] - DGND [pin 19] - DIN [pin 14] - DVDD [pin 20] - FLT [pin 11] - FMT [pin 16] - LDOO [pin 18] - LRCK [pin 15] - OUTL [pin 6] - OUTR [pin 7] - SCK [pin 12] - VNEG [pin 5] - XSMT [pin 17] ### J_BAT — [S2B-PH-K-S(LF)(SN)](https://www.flux.ai/adrian95/s2b-ph-k-slfsn~brb.md) - Manufacturer Name: JST - Allow Substitutes: Yes - Connector Type: Power Connectors - Connector Rows: 1 - Mount: Through Hole - License: https://creativecommons.org/licenses/by/4.0/ - Pin 2 Label: BAT- - Role Details: Right-angle JST-PH 2-pin battery connector - Part Type: Connector - Datasheet URL: https://www.jst-mfg.com/product/pdf/eng/ePH.pdf - Pin 1 Label: BAT+ - Manufacturer Part Number: S2B-PH-K-S(LF)(SN) - Connector Pitch: 2mm - Role: Connector - Connector Positions: 2 **Pins:** - P1 [pin 1] - P2 [pin 2] ### J_SPK — [S2B-PH-K-S(LF)(SN)](https://www.flux.ai/adrian95/s2b-ph-k-slfsn~brb.md) - Connector Type: Headers and Wire Housings - Role: Isolation - Role Details: Right-angle JST-PH 2-pin speaker connector - Manufacturer Part Number: S2B-PH-K-S(LF)(SN) - Mount: Through Hole - Terminal Type: Right-angle, through-hole, friction lock - Datasheet URL: https://www.jst-mfg.com/product/pdf/eng/ePH.pdf - Pin 1 Label: SPK+ - Part Type: Connector - License: https://creativecommons.org/licenses/by/4.0/ - Connector Positions: 2 - Connector Rows: 1 - Pin 2 Label: SPK- - Manufacturer Name: JST - Allow Substitutes: Yes - Connector Gender: Receptacle - Connector Pitch: 2mm **Pins:** - P1 [pin 1] - P2 [pin 2] ### J2 — [Type-C-2.0-6Pin](https://www.flux.ai/jharwinbarrozo/type-c-2p0-6pin~wh.md) - Manufacturer Part Number: Type-C-2.0-6Pin - Datasheet URL: https://datasheet.lcsc.com/lcsc/2204071830_CIKI-Type-C-2-0-6Pin_C2987385.pdf - Part Type: Connector - Manufacturer Name: CIKI **Pins:** - CC1 - CC2 - GND - GND__1 - SHIELD - SHIELD__1 - SHIELD__2 - SHIELD__3 - V-BUS - V-BUS__1 ### J3 — [640456-6](https://www.flux.ai/adrian95/640456-6~oy5.md) - Part Type: Connector - Role Details: ESP32 programming header (1x6 2.54 mm) - Manufacturer Name: TE Connectivity AMP Connectors - Manufacturer Part Number: 640456-6 - Role: Connector - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://www.te.com/usa-en/product-640456-6.datasheet.pdf - Package or Case Code: SHDR6W66P0X254_1X6_1524X572X1003P **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] - 5 [pin 5] - 6 [pin 6] ### J4 — [Pin Header 02x04 2.54mm Vertical](https://www.flux.ai/adrian95/pin-header-02x04-254mm-vertical~453.md) - Connector Rows: 2 - Manufacturer Part Number: Pin Header 02x04 2.54mm Vertical - Connector Type: Headers and Wire Housings - Part Type: Connector - Role: Connector - Connector Pitch: 2.54mm - Role Details: SPI flash programming header for U2 (W25Q64JVSSIQ) - Connector Positions: 8 - Mount: Through Hole - Connector Gender: Male - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - Pin_1 [pin 1] - Pin_2 [pin 2] - Pin_3 [pin 3] - Pin_4 [pin 4] - Pin_5 [pin 5] - Pin_6 [pin 6] - Pin_7 [pin 7] - Pin_8 [pin 8] ### LED_BLUE — [LED 0402](https://www.flux.ai/jecstronic/led-0402~lkg.md) - Part Type: LED - Role Details: Status indicator blue LED for GPIO control - License: https://creativecommons.org/licenses/by/4.0/ - Role: LED **Pins:** - A [pin 2] - K [pin 1] ### LED_BLUE — [LED 0402](https://www.flux.ai/jecstronic/led-0402~lkg.md) - Role Details: Status indicator blue LED, controlled by ESP32 GPIO - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: LED - Role: LED - Package: SMD_0402_1005Metric **Pins:** - A [pin 2] - K [pin 1] ### LED_RED — [VLMS1500-GS08](https://www.flux.ai/adrian95/vlms1500-gs08~9dy.md) - Part Type: LED - Role: LED - Datasheet URL: https://www.vishay.com/docs/82554/vlmo1500.pdf - License: https://creativecommons.org/licenses/by/4.0/ - Role Details: Status indicator red LED for GPIO control - Manufacturer Name: Vishay Semiconductor Opto Division - Manufacturer Part Number: VLMS1500-GS08 **Pins:** - A [pin 2] - K [pin 1] ### LED_RED — [VLMS1500-GS08](https://www.flux.ai/adrian95/vlms1500-gs08~9dy.md) - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: VLMS1500-GS08 - Manufacturer Name: Vishay Semiconductor Opto Division - Package: SMD_0402_1005Metric - Role Details: Status indicator red LED for GPIO control - Part Type: LED - Datasheet URL: https://www.vishay.com/docs/82554/vlmo1500.pdf - Role: LED **Pins:** - A [pin 2] - K [pin 1] ### Q1 — [2N7002](https://www.flux.ai/lcsc/2n7002~13ip.md) - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2407101108_MDD-Microdiode-Semiconductor-2N7002_C472906.pdf - Manufacturer Name: MDD(辰达半导体) - Package or Case Code: SOT-23-3 - JLCPCB Part Class: Extended Part - Continuous Drain Current: 200mA at 25°C - LCSC Part Number: C472906 - Drain to Source Voltage: 60V - Package: SOT-23-3_L2.9-W1.5-P1.90-LS2.6-BR - Part Type: Transistor - Manufacturer Part Number: 2N7002 - KiCAD Library Reference: 2N7002 - Product Info Url: https://lcsc.com/product-detail/MOSFET_MDD-Microdiode-Electronics-2N7002_C472906.html - Transistor Type: MOSFET - Role Details: MOSFET gate transistor for U5 EN control using VBUS or U4 CHG/PG status - Role: Switch **Pins:** - D [pin 3] - G [pin 1] - S [pin 2] ### Q1 — [2N7002](https://www.flux.ai/lcsc/2n7002~13ip.md) - Manufacturer Name: MDD(辰达半导体) - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2407101108_MDD-Microdiode-Semiconductor-2N7002_C472906.pdf - JLCPCB Part Class: Extended Part - Package or Case Code: SOT-23-3_L2.9-W1.5-P1.90-LS2.6-BR - LCSC Part Number: C472906 - Continuous Drain Current: 200mA at 25°C - Drain to Source Voltage: 60V - Part Type: MOSFETs - Transistor Type: N-channel MOSFET - Product Info Url: https://lcsc.com/product-detail/MOSFET_MDD-Microdiode-Electronics-2N7002_C472906.html - Manufacturer Part Number: 2N7002 - Package: SOT-23-3_L2.9-W1.5-P1.90-LS2.6-BR - Role Details: MOSFET gate transistor for U5 EN control using VBUS or U4 CHG/PG status - Role: Switch **Pins:** - D [pin 3] - G [pin 1] - S [pin 2] ### Q2 — [AO4407A](https://www.flux.ai/jecstronic/ao4407a~yc0.md) - Role Details: High-side PFET for soft-latch between VBAT and VBAT_SW - Manufacturer Name: Alpha & Omega Semiconductor Inc. - Manufacturer Part Number: AO4407A - License: https://creativecommons.org/licenses/by/4.0/ - Role: Switch - Datasheet URL: http://www.aosmd.com/res/data_sheets/AO4407A.pdf - Part Type: Transistor **Pins:** - D [pin 5] - D [pin 7] - D [pin 8] - D [pin 6] - G [pin 4] - S [pin 2] - S [pin 3] - S [pin 1] ### SW1 — [B3U-3000P](https://www.flux.ai/adrian95/b3u-3000p~l3s.md) - Manufacturer Name: Omron Electronics Inc-EMC Div - Role Details: Side momentary power button for soft-latch control - Role: Switch - Part Type: Switch - Manufacturer Part Number: B3U-3000P - Datasheet URL: https://omronfs.omron.com/en_US/ecb/products/pdf/en-b3u.pdf - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - 1 [pin 1] - 2 [pin 2] ### SW2 — [EVQP7C01P](https://www.flux.ai/adrian95/evqp7c01p~i4.md) - Part Type: Switch - Package or Case Code: EVQP7C01P - KiCAD Library Reference: EVQP7C01P - License: https://creativecommons.org/licenses/by/4.0/ - Role Details: Volume up button (IO32) - Datasheet URL: https://api.pim.na.industrial.panasonic.com/file_stream/main/fileversion/245500 - Manufacturer Name: Panasonic - Role: Human Interface - Manufacturer Part Number: EVQP7C01P **Pins:** - COM_1 [pin 2] - COM_2 [pin 3] - NO_1 [pin 1] - NO_2 [pin 4] ### SW3 — [EVQP7C01P](https://www.flux.ai/adrian95/evqp7c01p~i4.md) - Part Type: Switch - Package or Case Code: EVQP7C01P - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://api.pim.na.industrial.panasonic.com/file_stream/main/fileversion/245500 - Role Details: Volume down button (IO33) - Role: Human Interface - Manufacturer Part Number: EVQP7C01P - Manufacturer Name: Panasonic **Pins:** - COM_1 [pin 2] - COM_2 [pin 3] - NO_1 [pin 1] - NO_2 [pin 4] ### U1 — [ESP32-WROOM-32D](https://www.flux.ai/vasyl/esp32-wroom-32d~7py.md) - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: ESP32-WROOM-32D - Part Type: Microcontroller - Datasheet URL: https://www.espressif.com/sites/default/files/documentation/esp32-wroom-32d_esp32-wroom-32u_datasheet_en.pdf - Manufacturer Name: Espressif Systems **Pins:** - 3.3V [pin 2] - AGND [pin 39] - CLK [pin 20] - CMD [pin 19] - EN [pin 3] - GND [pin 38] - GND [pin 15] - GND [pin 1] - IO0 [pin 25] - IO12 [pin 14] - IO13 [pin 16] - IO14 [pin 13] - IO15 [pin 23] - IO16 [pin 27] - IO17 [pin 28] - IO18 [pin 30] - IO19 [pin 31] - IO2 [pin 24] - IO21 [pin 33] - IO22 [pin 36] - IO23 [pin 37] - IO25 [pin 10] - IO26 [pin 11] - IO27 [pin 12] - IO32 [pin 8] - IO33 [pin 9] - IO34 [pin 6] - IO35 [pin 7] - IO4 [pin 26] - IO5 [pin 29] - NC [pin 32] - RXD0 [pin 34] - SD0 [pin 21] - SD1 [pin 22] - SD2 [pin 17] - SD3 [pin 18] - TXD0 [pin 35] - VN [pin 5] - VP [pin 4] ### U2 — [W25Q64JVSSIQ](https://www.flux.ai/lcsc/w25q64jvssiq~ias3.md) - Part Type: NOR FLASH - Frequency: 133MHz - Operating Temperature: -40°C ~ 85°C (TA) - Manufacturer Part Number: W25Q64JVSSIQ - Package or Case Code: SOIC-8_L5.3-W5.3-P1.27-LS8.0-BL - Product Info Url: https://lcsc.com/product-detail/New-Arrivals_Winbond-Elec-W25Q64JVSSIQ_C179171.html - Voltage Supply: 2.7 ~ 3.6V - LCSC Part Number: C179171 - Manufacturer Name: WINBOND(华邦) - JLCPCB Part Class: Extended Part - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/1912211532_Winbond-Elec-W25Q64JVSSIQ_C179171.pdf **Pins:** - ~{CS} [pin 1] - CLK [pin 6] - DI(IO0) [pin 5] - DO(IO1) [pin 2] - GND [pin 4] - HOLD#orRESET#(IO3) [pin 7] - VCC [pin 8] - WP#(IO2) [pin 3] ### U3 — [FM8002E](https://www.flux.ai/lcsc/fm8002e~6ft0.md) - JLCPCB Part Class: Extended Part - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2202251530_Shenzhen-Fuman-Elec-FM8002E_C340921.pdf - Manufacturer Name: FM(富满) - Part Type: Audio Power OpAmps - Package or Case Code: SOP-8_L4.9-W3.9-P1.27-LS6.0-BL - Product Info Url: https://lcsc.com/product-detail/Others_Shenzhen-Fuman-Elec-FM8002E_C340921.html - LCSC Part Number: C340921 - Manufacturer Part Number: FM8002E **Pins:** - -IN [pin 4] - +IN [pin 3] - BYPASS [pin 2] - GND [pin 7] - SHUTDOWN [pin 1] - VDD [pin 6] - VO1 [pin 5] - VO2 [pin 8] ### U4 — [SLM6400](https://www.flux.ai/lcsc/slm6400~bgrf.md) - Manufacturer Name: 无锡松朗微 - JLCPCB Part Class: Extended Part - Product Info Url: https://lcsc.com/product-detail/Others_SOLA-IC-SLM6400_C338664.html - Package or Case Code: DFN-8_L3.0-W3.0-P0.65-BL-EP - LCSC Part Number: C338664 - Part Type: Battery Management ICs - Manufacturer Part Number: SLM6400 - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2007231614_SOLA-IC-SLM6400_C338664.pdf **Pins:** - BAT [pin 5] - EP [pin 9] - GND [pin 3] - NCE [pin 8] - NCH [pin 7] - NPG [pin 6] - NTC [pin 1] - PROG [pin 2] - VCC [pin 4] ### U5 — [MP2315SGJ](https://www.flux.ai/monolithicpower/mp2315sgj~lcs.md) - Package or Case Code: TSOT23-8_MP2315S_MNP - Product Image Url: https://www.monolithicpower.com/pub/media/catalog/product/M/P/MP2315S_1078_1.jpg - Manufacturer Part Number: ua - Product Info Url: https://www.monolithicpower.com/en/catalog/product/view/id/1078?utm_source=ultralibrarian&utm_medium=component_search&utm_campaign=listing - Manufacturer Name: Monolithic Power Systems - Datasheet URL: https://www.monolithicpower.com/en/documentview/productdocument/index/version/2/document_type/Datasheet/lang/en/sku/MP2315S **Pins:** - AAM [pin 1] - BST [pin 5] - EN [pin 6] - FB [pin 8] - GND [pin 4] - IN [pin 2] - SW [pin 3] - VCC [pin 7] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/devstat/qrispaymentsoundbox~wu](https://www.flux.ai/devstat/qrispaymentsoundbox~wu).* --- *Generated from [https://www.flux.ai/devstat/qrispaymentsoundbox~wu](https://www.flux.ai/devstat/qrispaymentsoundbox~wu)*