# JC02 Rangefinder Controller

## Description

Compact JC02\-1 laser rangefinder control board with USB\-C charging/programming, Bluetooth, three\-axis acceleration sensing, LiPo monitoring, rear\-facing 1\.54\-inch OLED, four top buttons and Off/On/Settings slide switch\.

## Project Details

- **Owner:** paxmanhp
- **Created:** 10/17/2026
- **Last Updated:** 10/17/2026
- **Visibility:** Public

## Key Components

### D1 — [USBLC6\-2SC6](https://flux.ai/vasy_skral/usblc6-2sc6~g1b.md)

- Role: ESD Protection
- Manufacturer Part Number: USBLC6\-2SC6
- Functional Group: IO J1 USB\-C
- Symbol Style: parametric\-v1
- Role Details: USB data clamp before Y\-side isolation;1/6 D\+,3/4 D\-,5VBUS,2GND
- License: https://creativecommons\.org/licenses/by/4\.0/
- Part Type: Protection
- Manufacturer Name: STMicroelectronics
- Datasheet URL: https://www\.st\.com/content/ccc/resource/technical/document/datasheet/06/1d/48/9c/6c/20/4a/b2/CD00050750\.pdf/files/CD00050750\.pdf/jcr:content/translations/en\.CD00050750\.pdf
- LCSC Part Number: C7519

**Pins:**
- GND [pin 2]
- I/O1 [pin 6]
- I/O1 [pin 1]
- I/O2 [pin 3]
- I/O2 [pin 4]
- VBUS [pin 5]

### J1 — [TYPE\-C16PIN](https://flux.ai/lcsc/type-c16pin~9qw.md)

- Manufacturer Part Number: TYPE\-C16PIN
- Manufacturer Name: SHOU HAN\(首韩\)
- Role: USB connector
- Functional Group: IO J1 USB\-C
- Package or Case Code: USB\-C\-SMD\_TYPE\-C16PIN
- Symbol Style: parametric\-v1
- Datasheet URL: https://storage\.googleapis\.com/graviton\-electric\-symbols/document\_assets/lcsc/1912111437\_SHOU\-HAN\-TYPE\-C16PIN\_C393939\.pdf
- Product Info Url: https://lcsc\.com/product\-detail/USB\-Connectors\_SHOU\-HAN\-TYPE\-C16PIN\_C393939\.html
- JLCPCB Part Class: Extended Part
- Part Type: USB Connectors
- LCSC Part Number: C393939
- Role Details: USB2 device sink\. Source entitlement required; programming only ON/SETTINGS\.

**Pins:**
- CC1 [pin A5]
- CC2 [pin B5]
- DN1 [pin A7]
- DN2 [pin B7]
- DP1 [pin A6]
- DP2 [pin B6]
- GND [pin A1B12]
- GND [pin B1A12]
- SBU1 [pin A8]
- SBU2 [pin B8]
- SHELL [pin 4]
- SHELL [pin 1]
- SHELL [pin 3]
- SHELL [pin 2]
- VBUS [pin A4B9]
- VBUS [pin B4A9]

### J2 — [B7B\-PH\-K\-S\(LF\)\(SN\)](https://flux.ai/jecstronic/b7b-ph-k-slfsn~wib.md)

- Manufacturer Name: JST Sales America Inc\.
- Part Type: Connector
- Role: Coupling
- License: https://creativecommons\.org/licenses/by/4\.0/
- Datasheet URL: https://www\.jst\-mfg\.com/product/pdf/eng/ePH\.pdf
- Manufacturer Part Number: B7B\-PH\-K\-S\(LF\)\(SN\)
- Role Details: 1 GND 2 switched3V3 3 SCLK 4 MOSI 5 RESETn 6 DC 7 CSn; compatible MSP154X or adapter wired to Waveshare SSD1309\. Not assumed mate\.
- Functional Group: IO J2 OLED

**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]

### J3 — [B5B\-PH\-K\-S\(LF\)\(SN\)](https://flux.ai/adrian95/b5b-ph-k-slfsn~osx.md)

- Functional Group: IO J3 Rangefinder
- Datasheet URL: https://www\.jst\-mfg\.com/product/pdf/eng/ePH\.pdf
- Manufacturer Part Number: B5B\-PH\-K\-S\(LF\)\(SN\)
- Part Type: Connector
- License: https://creativecommons\.org/licenses/by/4\.0/
- Manufacturer Name: JST Sales America Inc\.
- Role Details: Adapter required:1GND white;2LRF3V5 lightblue;3moduleTX yellow;4moduleRX black;5enable red\. PHR\-5/SPH\-002T\-P0\.5S AWG24 target; not original JC02 mating claim\.
- Role: External Interface

**Pins:**
- Pin\_1 [pin 1]
- Pin\_2 [pin 2]
- Pin\_3 [pin 3]
- Pin\_4 [pin 4]
- Pin\_5 [pin 5]

### J4 — [B2B\-PH\-K\-S\(LF\)\(SN\)](https://flux.ai/jecstronic/b2b-ph-k-slfsn~nss.md)

- Manufacturer Part Number: B2B\-PH\-K\-S\(LF\)\(SN\)
- Manufacturer Name: JST Sales America
- Symbol Style: parametric\-v1
- Part Type: Connector
- Datasheet URL: https://datasheet\.lcsc\.com/lcsc/1811151524\_JST\-Sales\-America\-B2B\-PH\-K\-S\-LF\-SN\_C131337\.pdf
- License: https://creativecommons\.org/licenses/by/4\.0/
- Role: External Interface
- Functional Group: IO J4 Battery
- Role Details: 1 protectedPACK\+,2GND; PHR\-2/SPH\-002T\-P0\.5S AWG24 custom adapter\. NOT assumed existing battery plug\. Reverse connection is unsafe; polarity must be verified\.

**Pins:**
- PIN1 [pin 1]
- PIN2 [pin 2]

### J5 — [B2B\-PH\-K\-S\(LF\)\(SN\)](https://flux.ai/jecstronic/b2b-ph-k-slfsn~nss.md)

- Manufacturer Part Number: B2B\-PH\-K\-S\(LF\)\(SN\)
- Role Details: 1reference2\.048V,2NTC return to resistor ladder; attach insulated103AT\-2 to pack, not PCB ambient\. Open/short inhibits charge\.
- Manufacturer Name: JST Sales America
- Functional Group: IO J5 Pack Temperature
- Symbol Style: parametric\-v1
- Part Type: Connector
- Datasheet URL: https://datasheet\.lcsc\.com/lcsc/1811151524\_JST\-Sales\-America\-B2B\-PH\-K\-S\-LF\-SN\_C131337\.pdf
- License: https://creativecommons\.org/licenses/by/4\.0/
- Role: External Interface

**Pins:**
- PIN1 [pin 1]
- PIN2 [pin 2]

### Q1 — [MMBT3904WT1G](https://flux.ai/adrian95/mmbt3904wt1g~y5c.md)

- Manufacturer Part Number: MMBT3904WT1G
- Datasheet URL: https://www\.onsemi\.com/pub/Collateral/MMBT3904WT1\-D\.PDF
- Functional Group: IO J1 USB\-C
- Manufacturer Name: onsemi
- Role: Isolation
- Package or Case Code: SOT65P220X100\-3N
- Part Type: Transistor
- License: onsemi
- Role Details: Base resistor and base\-emitter pulldown\. USB entitlement or VBUS sense without forward feed into switchedMCU\.

**Pins:**
- B [pin 1]
- C [pin 3]
- E [pin 2]

### Q2 — [MMBT3904WT1G](https://flux.ai/adrian95/mmbt3904wt1g~y5c.md)

- Role Details: Base resistor and base\-emitter pulldown\. USB entitlement or VBUS sense without forward feed into switchedMCU\.
- Manufacturer Part Number: MMBT3904WT1G
- Datasheet URL: https://www\.onsemi\.com/pub/Collateral/MMBT3904WT1\-D\.PDF
- Manufacturer Name: onsemi
- Package or Case Code: SOT65P220X100\-3N
- Part Type: Transistor
- Role: Isolation
- Functional Group: IO J1 USB\-C
- License: onsemi

**Pins:**
- B [pin 1]
- C [pin 3]
- E [pin 2]

### Q3 — [MMBT3904WT1G](https://flux.ai/adrian95/mmbt3904wt1g~y5c.md)

- Role: Protection
- Manufacturer Part Number: MMBT3904WT1G
- Datasheet URL: https://www\.onsemi\.com/pub/Collateral/MMBT3904WT1\-D\.PDF
- Manufacturer Name: onsemi
- Functional Group: POWER U5 Charger
- Package or Case Code: SOT65P220X100\-3N
- Role Details: CE remains pulled high until hardware window drives NPN; independent of MCU and Off
- Part Type: Transistor
- License: onsemi

**Pins:**
- B [pin 1]
- C [pin 3]
- E [pin 2]

### SW1 — [B3U\-1000P](https://flux.ai/adrian95/b3u-1000p~kb2.md)

- License: https://creativecommons\.org/licenses/by/4\.0/
- Role Details: Momentary normally open; three inline and fourth left; layout deferred
- Role: User button
- Functional Group: USER INTERFACE SW1 Controls
- Manufacturer Part Number: B3U\-1000P
- Datasheet URL: https://omronfs\.omron\.com/en\_US/ecb/products/pdf/en\-b3u\.pdf
- Part Type: Switch
- Manufacturer Name: Omron Electronics Inc\-EMC Div

**Pins:**
- 1 [pin 1]
- 2 [pin 2]

### SW2 — [B3U\-1000P](https://flux.ai/adrian95/b3u-1000p~kb2.md)

- License: https://creativecommons\.org/licenses/by/4\.0/
- Functional Group: USER INTERFACE SW1 Controls
- Role Details: Momentary normally open; three inline and fourth left; layout deferred
- Manufacturer Part Number: B3U\-1000P
- Role: User button
- Datasheet URL: https://omronfs\.omron\.com/en\_US/ecb/products/pdf/en\-b3u\.pdf
- Part Type: Switch
- Manufacturer Name: Omron Electronics Inc\-EMC Div

**Pins:**
- 1 [pin 1]
- 2 [pin 2]

### SW3 — [B3U\-1000P](https://flux.ai/adrian95/b3u-1000p~kb2.md)

- Role: User button
- License: https://creativecommons\.org/licenses/by/4\.0/
- Role Details: Momentary normally open; three inline and fourth left; layout deferred
- Manufacturer Part Number: B3U\-1000P
- Datasheet URL: https://omronfs\.omron\.com/en\_US/ecb/products/pdf/en\-b3u\.pdf
- Part Type: Switch
- Functional Group: USER INTERFACE SW1 Controls
- Manufacturer Name: Omron Electronics Inc\-EMC Div

**Pins:**
- 1 [pin 1]
- 2 [pin 2]

### SW4 — [B3U\-1000P](https://flux.ai/adrian95/b3u-1000p~kb2.md)

- License: https://creativecommons\.org/licenses/by/4\.0/
- Manufacturer Part Number: B3U\-1000P
- Role Details: Momentary normally open; three inline and fourth left; layout deferred
- Functional Group: USER INTERFACE SW1 Controls
- Datasheet URL: https://omronfs\.omron\.com/en\_US/ecb/products/pdf/en\-b3u\.pdf
- Role: User button
- Part Type: Switch
- Manufacturer Name: Omron Electronics Inc\-EMC Div

**Pins:**
- 1 [pin 1]
- 2 [pin 2]

### SW5 — [B3U\-1000P](https://flux.ai/adrian95/b3u-1000p~kb2.md)

- Functional Group: MCU U1 Main Controller
- Role Details: SW5 BOOT and SW6 RESET recovery
- License: https://creativecommons\.org/licenses/by/4\.0/
- Manufacturer Part Number: B3U\-1000P
- Role: Recovery button
- Datasheet URL: https://omronfs\.omron\.com/en\_US/ecb/products/pdf/en\-b3u\.pdf
- Part Type: Switch
- Manufacturer Name: Omron Electronics Inc\-EMC Div

**Pins:**
- 1 [pin 1]
- 2 [pin 2]

### SW6 — [B3U\-1000P](https://flux.ai/adrian95/b3u-1000p~kb2.md)

- License: https://creativecommons\.org/licenses/by/4\.0/
- Role: Recovery button
- Role Details: SW5 BOOT and SW6 RESET recovery
- Functional Group: MCU U1 Main Controller
- Manufacturer Part Number: B3U\-1000P
- Datasheet URL: https://omronfs\.omron\.com/en\_US/ecb/products/pdf/en\-b3u\.pdf
- Part Type: Switch
- Manufacturer Name: Omron Electronics Inc\-EMC Div

**Pins:**
- 1 [pin 1]
- 2 [pin 2]

### SW7 — [EG2301](https://flux.ai/lcsc/eg2301~lai5.md)

- JLCPCB Part Class: Extended Part
- Manufacturer Part Number: EG2301
- LCSC Part Number: C273401
- Role Details: 2P3T rated0\.2A so signal\-level only; P1 OFF3\-1/7\-5, P2 ON3\-2/7\-6, P3 SETTINGS3\-4/7\-8\. Verify footprint contact map before fabrication\.
- Functional Group: USER INTERFACE SW1 Controls
- Part Type: Slide Switches
- Datasheet URL: https://storage\.googleapis\.com/graviton\-electric\-symbols/document\_assets/lcsc/1810091750\_E\-Switch\-EG2301\_C273401\.pdf
- Product Info Url: https://lcsc\.com/product\-detail/Others\_E\-Switch\_EG2301\_E\-Switch\-EG2301\_C273401\.html
- Package or Case Code: SW\-TH\_EG2301
- Role: User Input
- Manufacturer Name: E\-Switch

**Pins:**
- 0 [pin 0]
- 1 [pin 1]
- 2 [pin 2]
- 3 [pin 3]
- 4 [pin 4]
- 5 [pin 5]
- 6 [pin 6]
- 7 [pin 7]
- 8 [pin 8]

### U1 — [ESP32\-S3\-WROOM\-1\-N4R8](https://flux.ai/lcsc/esp32-s3-wroom-1-n4r8~wwnr.md)

- Manufacturer Part Number: ESP32\-S3\-WROOM\-1\-N4R8
- JLCPCB Part Class: Extended Part
- Role Details: ESP32\-S3 native USB and BLE; 4MB flash 8MB PSRAM\. Wi\-Fi disabled by firmware; GPIO35\-37 unavailable\.
- Package or Case Code: WIRELM\-SMD\_ESP32\-S3\-WROOM\-1
- Part Type: WiFi Modules
- Role: Controller
- Datasheet URL: https://www\.elecrow\.com/download/product/DPI32285W/esp32\-s3\-wroom\-1\_wroom\-1u\_datasheet\_en\.pdf
- Functional Group: MCU U1 Main Controller
- Manufacturer Name: ESPRESSIF\(乐鑫\)
- LCSC Part Number: C2913200

**Pins:**
- 3V3 [pin 2]
- EN [pin 3]
- GND [pin 41]
- GND [pin 1]
- GND [pin 40]
- IO0 [pin 27]
- IO1 [pin 39]
- IO10 [pin 18]
- IO11 [pin 19]
- IO12 [pin 20]
- IO13 [pin 21]
- IO14 [pin 22]
- IO15 [pin 8]
- IO16 [pin 9]
- IO17 [pin 10]
- IO18 [pin 11]
- IO19 [pin 13]
- IO2 [pin 38]
- IO20 [pin 14]
- IO21 [pin 23]
- IO3 [pin 15]
- IO35 [pin 28]
- IO36 [pin 29]
- IO37 [pin 30]
- IO38 [pin 31]
- IO39 [pin 32]
- IO4 [pin 4]
- IO40 [pin 33]
- IO41 [pin 34]
- IO42 [pin 35]
- IO45 [pin 26]
- IO46 [pin 16]
- IO47 [pin 24]
- IO48 [pin 25]
- IO5 [pin 5]
- IO6 [pin 6]
- IO7 [pin 7]
- IO8 [pin 12]
- IO9 [pin 17]
- RXD0 [pin 36]
- TXD0 [pin 37]

### U10 — [TPS22919DCKR](https://flux.ai/adrian95/tps22919dckr~ztz.md)

- Manufacturer Name: Texas Instruments
- Manufacturer Part Number: TPS22919DCKR
- Package or Case Code: SOT65P210X110\-6N
- Role: Switching
- License: https://creativecommons\.org/licenses/by/4\.0/
- Datasheet URL: http://www\.ti\.com/lit/ds/symlink/tps22919\.pdf
- Part Type: Integrated Circuit
- Functional Group: POWER U10 Hardware Switch
- Role Details: Hardware\-only ON from SW7, disconnects SYS feed upstream both converters\. 1\.5A rating vs provisional0\.922A load\. Not a mechanical galvanic disconnect\.

**Pins:**
- GND [pin 2]
- IN [pin 1]
- N/C [pin 4]
- ON [pin 3]
- OUT [pin 6]
- QOD [pin 5]

### U11 — [SN74LVC1G34DSFR](https://flux.ai/adrian95/sn74lvc1g34dsfr~50n.md)

- Datasheet URL: https://www\.ti\.com/lit/ds/symlink/sn74lvc1g34\.pdf
- Role Details: Ioff\-protected buffer; powered from receiving domain\. Module thresholds remain unverified; qualify3\.3V UART/enable before connecting laser\.
- Role: Signal Isolation
- Part Type: Integrated Circuit
- Manufacturer Name: Texas Instruments
- Manufacturer Part Number: SN74LVC1G34DSFR
- License: https://creativecommons\.org/licenses/by/4\.0/
- Functional Group: IO J3 Rangefinder

**Pins:**
- \~OE [pin 1]
- A [pin 2]
- GND [pin 3]
- n\.c\. [pin 5]
- VCC [pin 6]
- Y [pin 4]

### U12 — [SN74LVC1G34DSFR](https://flux.ai/adrian95/sn74lvc1g34dsfr~50n.md)

- Functional Group: IO J3 Rangefinder
- Datasheet URL: https://www\.ti\.com/lit/ds/symlink/sn74lvc1g34\.pdf
- Part Type: Integrated Circuit
- Manufacturer Name: Texas Instruments
- Manufacturer Part Number: SN74LVC1G34DSFR
- License: https://creativecommons\.org/licenses/by/4\.0/
- Role: Signal Isolation
- Role Details: Ioff\-protected buffer; powered from receiving domain\. Module thresholds remain unverified; qualify3\.3V UART/enable before connecting laser\.

**Pins:**
- \~OE [pin 1]
- A [pin 2]
- GND [pin 3]
- n\.c\. [pin 5]
- VCC [pin 6]
- Y [pin 4]

### U13 — [SN74LVC1G34DSFR](https://flux.ai/adrian95/sn74lvc1g34dsfr~50n.md)

- Datasheet URL: https://www\.ti\.com/lit/ds/symlink/sn74lvc1g34\.pdf
- Role: Signal Isolation
- Part Type: Integrated Circuit
- Role Details: Ioff\-protected buffer; powered from receiving domain\. Module thresholds remain unverified; qualify3\.3V UART/enable before connecting laser\.
- Manufacturer Name: Texas Instruments
- Manufacturer Part Number: SN74LVC1G34DSFR
- License: https://creativecommons\.org/licenses/by/4\.0/
- Functional Group: IO J3 Rangefinder

**Pins:**
- \~OE [pin 1]
- A [pin 2]
- GND [pin 3]
- n\.c\. [pin 5]
- VCC [pin 6]
- Y [pin 4]

### U2 — [LIS3DHTR](https://flux.ai/adrian95/lis3dhtr.md)

- Role Details: I2C digital 3\-axis accelerometer at 0x18; switched3V3
- Datasheet URL: https://www\.st\.com/content/ccc/resource/technical/document/datasheet/3c/ae/50/85/d6/b1/46/fe/CD00274221\.pdf/files/CD00274221\.pdf/jcr:content/translations/en\.CD00274221\.pdf
- Part Type: Sensors
- Package or Case Code: 16\-LGA
- Functional Group: SENSE U2 Accelerometer
- Manufacturer Name: STMicroelectronics
- Role: Accelerometer
- Manufacturer Part Number: LIS3DHTR
- Symbol Style: parametric\-v1

**Pins:**
- ADC1 [pin 16]
- ADC2 [pin 15]
- ADC3 [pin 13]
- CS [pin 8]
- GND\_1 [pin 5]
- GND\_2 [pin 12]
- INT1 [pin 11]
- INT2 [pin 9]
- NC\_1 [pin 2]
- NC\_2 [pin 3]
- RES [pin 10]
- SCL/SPC [pin 4]
- SDA/SDI/SDO [pin 6]
- SDO/SA0 [pin 7]
- VDD [pin 14]
- VDDIO [pin 1]

### U3 — [PI3USB102GZLEX](https://flux.ai/jecstronic/pi3usb102gzlex~h46.md)

- Functional Group: IO J1 USB\-C
- Role Details: Switched3V3 USB isolation; Y host side; OE/SEL grounded select M\. Ioff \<=1uA with VDD0\.
- Manufacturer Part Number: PI3USB102GZLEX
- Datasheet URL: https://www\.diodes\.com/assets/Datasheets/PI3USB102G\.pdf
- Manufacturer Name: Diodes Incorporated
- License: https://creativecommons\.org/licenses/by/4\.0/
- Role: Isolation
- Part Type: Integrated Circuit

**Pins:**
- \~OE [pin 8]
- D\- [pin 6]
- D\+ [pin 7]
- GND [pin 3]
- M\- [pin 4]
- M\+ [pin 5]
- SEL [pin 10]
- VDD [pin 9]
- Y\- [pin 2]
- Y\+ [pin 1]

### U4 — [MAX17048G\+T10](https://flux.ai/lcsc/max17048gplust10~jvyd.md)

- Manufacturer Name: MAXIM
- Manufacturer Part Number: MAX17048G\+T10
- LCSC Part Number: C2682616
- Functional Group: POWER U4 Fuel Gauge
- Package or Case Code: DFN\-8\_L2\.0\-W2\.0\-P0\.50\-BL\-EP
- Role: Sensing \(Shunt\)
- Datasheet URL: https://www\.analog\.com/media/en/technical\-documentation/data\-sheets/MAX17048\-MAX17049\.pdf
- Role Details: Always battery powered voltage model fuel gauge; I2C pulls only switched3V3; ALRT unused\. Library mount metadata suspect verify TDFN footprint\.
- Part Type: Battery Management ICs
- Symbol Style: parametric\-v1
- JLCPCB Part Class: Extended Part

**Pins:**
- \~\{ALRT\} [pin 5]
- CELL [pin 2]
- CTG [pin 1]
- EP [pin 9]
- GND [pin 4]
- QSTRT [pin 6]
- SCL [pin 7]
- SDA [pin 8]
- VDD [pin 3]

### U5 — [BQ24074RGTT](https://flux.ai/vasyl/bq24074rgtt~qs.md)

- Manufacturer Part Number: BQ24074RGTT
- Role: Power Management
- Functional Group: POWER U5 Charger
- Role Details: 300mA nominal charge target with 2\.94k ISET; EN1 high, EN2 defaults high\. USB entitlement required\. Thermal qualification pending PCB\.
- Datasheet URL: https://www\.ti\.com/lit/ds/symlink/bq24074\.pdf
- Manufacturer Name: Texas Instruments
- Part Type: Integrated Circuit

**Pins:**
- \~CE [pin 4]
- \~CHG [pin 9]
- \~PGOOD [pin 7]
- BAT [pin 3]
- BAT [pin 2]
- EN1 [pin 6]
- EN2 [pin 5]
- ILIM [pin 12]
- IN [pin 13]
- ISET [pin 16]
- ITERM [pin 15]
- OUT [pin 11]
- OUT [pin 10]
- TMR [pin 14]
- TS [pin 1]
- VSS [pin 17]
- VSS [pin 8]

### U6 — [TPS63031DSKR](https://flux.ai/adrian95/tps63031dskr~yd3.md)

- Manufacturer Name: Texas Instruments
- License: https://creativecommons\.org/licenses/by/4\.0/
- Datasheet URL: https://www\.ti\.com/lit/ds/symlink/tps63030\.pdf
- Manufacturer Part Number: TPS63031DSKR
- Role Details: Fixed3\.3V; provisional500mA total logic envelope\. Battery3\.0V input budget0\.647A at85% efficiency\. Final OLED load and transients unverified\.
- Part Type: Integrated Circuit
- Functional Group: POWER U6 Logic BuckBoost
- Role: Voltage Regulator

**Pins:**
- EN [pin 6]
- EP [pin 11]
- FB [pin 10]
- GND [pin 9]
- L1 [pin 4]
- L2 [pin 2]
- PGND [pin 3]
- PS/SYNC [pin 7]
- VIN [pin 5]
- VINA [pin 8]
- VOUT [pin 1]

### U7 — [TPS63030DSKT](https://flux.ai/lcsc/tps63030dskt~4x8f.md)

- Datasheet URL: https://storage\.googleapis\.com/graviton\-electric\-symbols/document\_assets/lcsc/1912200932\_Texas\-Instruments\-TPS63030DSKT\_C469840\.pdf
- Role Details: 3\.5V forcedPWM; provisional200mA LRF envelope, not sourced peak\. Battery reflected0\.275A at3\.0V85%\. Final current qualification blocked on JC02 peak\.
- Part Type: AC\-DC Controllers & Regulators
- Product Info Url: https://lcsc\.com/product\-detail/Switching\-Controllers\_Texas\-Instruments\-Texas\-Instruments\-TPS63030DSKT\_C469840\.html
- Manufacturer Part Number: TPS63030DSKT
- Role: Voltage Regulator
- Package or Case Code: SON\-10\_L2\.5\-W2\.5\-P0\.50\-TL\-EP
- JLCPCB Part Class: Extended Part
- LCSC Part Number: C469840
- Manufacturer Name: TI\(德州仪器\)
- Functional Group: POWER U7 LRF BuckBoost

**Pins:**
- EN [pin 6]
- EP [pin 11]
- FB [pin 10]
- GND [pin 9]
- L1 [pin 4]
- L2 [pin 2]
- PGND [pin 3]
- PS/SYNC [pin 7]
- VIN [pin 5]
- VINA [pin 8]
- VOUT [pin 1]

### U8 — [TPS3700DSET](https://flux.ai/adrian95/tps3700dset~ab9.md)

- Manufacturer Part Number: TPS3700DSET
- Datasheet URL: https://www\.ti\.com/lit/ds/symlink/tps3700\.pdf
- Role: Protection
- License: https://creativecommons\.org/licenses/by/4\.0/
- Role Details: Dual comparator permits charge only inside conservative approximately10–40C window\. Remote103AT\-2 open/short inhibits\.
- Part Type: Integrated Circuit
- Functional Group: POWER U5 Charger
- Manufacturer Name: Texas Instruments

**Pins:**
- GND [pin 5]
- INA\+ [pin 4]
- INB\- [pin 3]
- OUTA [pin 6]
- OUTB [pin 1]
- VDD [pin 2]

### U9 — [REF3020AIDBZT](https://flux.ai/vasyl/ref3020aidbzt~cpl.md)

- Part Type: Integrated Circuit
- Manufacturer Name: Texas Instruments
- Role: Reference
- Functional Group: POWER U5 Charger
- Manufacturer Part Number: REF3020AIDBZT
- Datasheet URL: https://www\.ti\.com/lit/ds/symlink/ref30\.pdf
- Role Details: USB\-powered2\.048V reference for hardware pack temperature window

**Pins:**
- GND [pin 3]
- IN [pin 1]
- OUT [pin 2]

*The full schematic, PCB layout, bill of materials, and interactive design are available at [https://flux\.ai/paxmanhp/jc02\-rangefinder\-controller\~ty](https://flux.ai/paxmanhp/jc02-rangefinder-controller~ty).*

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*Generated from [https://flux\.ai/paxmanhp/jc02\-rangefinder\-controller\~ty](https://flux.ai/paxmanhp/jc02-rangefinder-controller~ty)*