BQ25185 Charger Topology
Worked for 4 mins 1 sec
Table
| Bloque | Resultado de búsqueda Flux + JLCPCB | Verificación eléctrica/mecánica | Estado |
|---|---|---|---|
| J1 — DX07S016JA3R1500, C3197625 | No existe entrada Flux exacta; sólo aparece DX07S016JA1R1500. Opción encontrada: USB4215-03-A, disponible en LCSC y con símbolo/footprint Flux. | USB4215 tiene 16 contactos USB 2.0, SMT horizontal y anclajes de shell THT. No se pudo demostrar igualdad de altura, shell tabs, cutout ni patrón de pads con JA3. | SIN OPCIÓN SIMULTÁNEAMENTE VALIDADA — BLOCKS_PCB |
| K1, K2, K3 — G5LE-14-DC5, C116963 | Existe G5LE-14 5VDC, JLCPCB Extended, con footprint de cinco pads. | Oficial: 5 V, 79.4 mA, 63 Ω, SPDT, sellado, 10 A/120 VAC y 8 A/30 VDC; 22.5 × 16.5 × 19 mm máx.; cinco agujeros Ø1.3 mm. Pinout oficial: bobina 1–2, NO=3, NC=4, COM=5. El símbolo Flux sólo etiqueta los pines 1–5 y su gráfico no representa correctamente el relé; no es seguro usarlo sin corregir/verificar el símbolo. | ENTRADA EXACTA ENCONTRADA, PERO NO UTILIZABLE TODAVÍA — BLOCKS_PCB |
| L1 — MSS1246T-683MLB | No existe entrada exacta Flux. YSPI1050-680M, C497902, tiene footprint exacto Flux, pero DCR máx. 300 mΩ excede 186 mΩ. CYH125-68UH, C7431083, tiene 68 µH, 3 A y 64.8 mΩ. | CYH125 mide 12.5 × 12.5 × 6.0 mm y no separa claramente Isat e Irms; no se demuestra Isat ≥2.7 A bajo el mismo criterio ni equivalencia de altura/footprint. YSPI queda descartado por DCR y geometría distinta. | NINGUNA ALTERNATIVA COMPLETAMENTE VALIDADA — BLOCKS_PCB |
| L2 — 2.2 µH | Opción A: 0518CDMCCDS-2R2MC, Sumida, C212256, JLCPCB Extended. Opción B: TMS252012ALM-2R2MTAA, TDK, C1017131. Ambas tienen entradas Flux exactas. | Sumida: 2.2 µH ±20%, Isat 6.0 A mín., Irms 5.2 A típ., DCR 35 mΩ máx., 5.7 × 5.4 × 1.8 mm máx. TDK: 2.2 µH ±20%, Isat 2.8 A mín., Irms 2.6 A mín., DCR 84 mΩ máx., 2.5 × 2.0 × 1.2 mm. Ambas superan ampliamente el switch de 1 A del TPS63030, pero requieren aprobar el cambio desde el footprint 0805 actual. | DOS OPCIONES VÁLIDAS PENDIENTES DE APROBACIÓN |
Progreso Fase 6: 100%. No se modificaron componentes, esquema, PCB ni librerías. BENCH_ONLY / NOT FOR FABRICATION / NOT FOR ENERGIZATION.
Thought for 5 sec
I’ll read the attachment and apply only its authorized scope to the current BENCH_ONLY project.
Thought for 40 sec
I’ll replace all three relay proxies with the exact Omron entry, reconnect only the 5 V coils using the mandated pinout, leave all contacts externally open, and verify the saved schematic.
Worked for 2 mins 57 sec
Bloqueo exacto: no hay ACUs disponibles para ejecutar la sustitución, reconexión y verificación de K1, K2 y K3.
No se aplicó ninguna modificación parcial al esquema, footprint, conexiones ni PCB. El proyecto permanece BENCH_ONLY / NOT FOR FABRICATION / NOT FOR ENERGIZATION — 0% ejecutado.
Manual relay steps
Review relay safety
Find relay mapping
Refine this doc
Ask about this doc
Shadow Build Report — Brand NewDay
Final Status for This Run
PHASE 1 ONLY COMPLETE — BENCH_ONLY / NOT FOR FABRICATION / NOT FOR ENERGIZATION.
No KiCad project was imported, modified, overwritten, or treated as editable source. No PCB layout, physical placement, routing, antenna geometry, machine/load wiring, DFM release, impedance claim, RF certification claim, or energization approval was created.
Scope Executed
Built a clean-room Flux shadow schematic by functional blocks from the two attached briefs:
- USB-C service input, USB ESD, CC Rd resistors, CP2102N USB-UART bridge.
- BQ25185 charger/power-path, BQ29700 protection, TPS63030 buck-boost island, support passives.
- LM5069/Q1 protected input skeleton, LM5164 5 V buck, TPS7A2033 3.3 V LDO.
- CC1354 controller/RF interface skeleton, UART/SPI/reset/decoupling.
- MCP41HV51 digital potentiometer skeleton.
- K1/K2/K3 relay coil drivers only; contact pins 1/2/3 left external/no-connect.
- Q2/Q3 retained as DNP / BENCH_ONLY / non-operational.
Current schematic summary: 69 components, 61 nets.
Library Gap Policy Used
Exact MPNs/values from the brief were retained as properties. Where the exact Flux library entry was absent, the schematic uses either a clearly labelled proxy or a generic passive with an explicit LIBRARY GAP note. These are not silent substitutions and are not approved for PCB/layout/manufacturing.
Table
| Designator(s) | Requested exact part | Flux instantiated part | Status |
|---|---|---|---|
| J1 | DX07S016JA3R1500 | DX07S016JA1R1500 | LIBRARY GAP / connector proxy only |
| U8 | TPS63030DSKR | TPS63030DSK | LIBRARY GAP / base package-symbol proxy |
| U6 | LM5069MM-1 | LM5069MMX-1/NOPB | LIBRARY GAP / -1 variant proxy |
| U9 | CC1354P106T0RGZR | CC1352P1F3RGZR | LIBRARY GAP / non-final RF MCU proxy; exact pinout must be replaced |
| U10 | MCP41HV51-503E/ST | MCP45HV51-ST | LIBRARY GAP / visibly non-equivalent I2C proxy; exact SPI pot must be replaced |
| K1-K3 | G5LE-14-DC5 | G5LE-1-DC5 | LIBRARY GAP / 5 V relay proxy; contacts still external/no-connect |
| Q4-Q6 | CSD13380F3 | CSD13380F3T | LIBRARY GAP / orderable suffix proxy |
| L1 | MSS1246T-683MLB | Generic Inductor, MPN property set | LIBRARY GAP / generic inductor with exact MPN/value retained |
BOM by Functional Block
USB / Service
Table
| Ref | MPN / Value | Package / footprint note | Role |
|---|---|---|---|
| J1 | DX07S016JA3R1500 | USB-C proxy footprint from DX07S016JA1R1500 | USB-C service receptacle |
| U1 | TPD4E02B04DQAR | USON-10 | USB ESD protection |
| U2 | CP2102N-A02-GQFN28 | QFN-28 | USB-UART bridge |
| C1 | 100 nF | SMD_0603_1608Metric | U2 VDD decoupling |
| C2 | 4.7 uF | SMD_0603_1608Metric | U2 VDD bulk |
| R1 | 5.1 kΩ 1% | SMD_0603_1608Metric | CC1 Rd |
| R2 | 5.1 kΩ 1% | SMD_0603_1608Metric | CC2 Rd |
| R3 | 22.1 kΩ 1% | SMD_0603_1608Metric | VBUS divider top |
| R4 | 47.5 kΩ 1% | SMD_0603_1608Metric | VBUS divider bottom |
| R5 | 1 kΩ 1% | SMD_0603_1608Metric | CP2102N RSTB support |
BQ25185 / AirTag Power
Table
| Ref | MPN / Value | Package / footprint note | Role |
|---|---|---|---|
| U3 | BQ25185DLHR | DLH/WSON-10 | Single-cell charger/power-path |
| C3 | 47 pF C0G | SMD_0603_1608Metric | ISET cap |
| C4 | 1 uF 25 V | SMD_0603_1608Metric | IN cap |
| C5 | 10 uF 25 V | SMD_0805_2012Metric | SYS cap; SYS-to-GND close to U3 |
| C6 | 1 uF 10 V | SMD_0603_1608Metric | BAT cap |
| R6 | 24 kΩ 1% | SMD_0603_1608Metric | VSET |
| R7 | 21.5 kΩ 1% | SMD_0603_1608Metric | ISET |
| R25 | 10 kΩ | SMD_0603_1608Metric | TS/MR disable |
| U4 | BQ29700DSER | WSON-6 | Battery protection |
| C7 | 100 nF | SMD_0603_1608Metric | BQ29700 BAT cap |
| R8 | 2.2 kΩ 1% | SMD_0603_1608Metric | BQ29700 V− resistor |
| U8 | TPS63030DSKR | TPS63030DSK proxy WSON/VSON-10 | Buck-boost regulator |
| L2 | 2.2 uH | SMD_0805_2012Metric | TPS63030 inductor |
| C13 | 10 uF 6.3 V | SMD_0805_2012Metric | TPS63030 IN cap |
| C14 | 22 uF 6.3 V | SMD_0805_2012Metric | TPS63030 OUT cap |
| R14 | 1 MΩ 1% | SMD_0603_1608Metric | TPS63030 FB top |
| R15 | 200 kΩ 1% | SMD_0603_1608Metric | TPS63030 FB bottom |
HV / 5 V / 3.3 V Power
Table
| Ref | MPN / Value | Package / footprint note | Role |
|---|---|---|---|
| U6 | LM5069MM-1 | LM5069MMX-1/NOPB proxy VSSOP-10 | Hot-swap/eFuse controller |
| Q1 | CSD19536KTT | TO-263-3 | Pass MOSFET |
| R9 | 0.100 Ω 1 W | SMD_2512_6332Metric | LM5069 sense resistor |
| R10 | 100 kΩ | SMD_0603_1608Metric | PGOOD pull-up |
| U7 | LM5164DDAR | SO-8-EP | 5 V buck |
| L1 | MSS1246T-683MLB / 68 uH | Generic inductor, exact MPN property | LM5164 inductor |
| C10 | 2.2 uF 100 V | SMD_1210_3225Metric | LM5164 IN cap |
| C11 | 2.2 nF 50 V | SMD_0603_1608Metric | LM5164 BST cap |
| C12 | 22 uF 25 V | SMD_1210_3225Metric | RX_5V output cap |
| R11 | 42.2 kΩ | SMD_0603_1608Metric | LM5164 RON |
| R12 | 100 kΩ | SMD_0603_1608Metric | LM5164 FB top |
| R13 | 31.6 kΩ | SMD_0603_1608Metric | LM5164 FB bottom |
| U5 | TPS7A2033PDBVR | SOT-23-5 | RX_3V3 LDO |
| C8 | 1 uF 10 V | SMD_0603_1608Metric | U5 IN cap |
| C9 | 1 uF 10 V | SMD_0603_1608Metric | U5 OUT cap |
Controller / RF / Digital Pot
Table
| Ref | MPN / Value | Package / footprint note | Role |
|---|---|---|---|
| U9 | CC1354P106T0RGZR | CC1352P1F3RGZR proxy QFN-48 | RF MCU block placeholder; exact library part required |
| C15 | 22 uF 6.3 V | SMD_0805_2012Metric | VDDS bulk |
| C16 | 100 nF | SMD_0402_1005Metric | VDDS decoupling |
| C17 | 100 nF | SMD_0402_1005Metric | VDDS2 decoupling |
| C18 | 100 nF | SMD_0402_1005Metric | DCOUPL cap |
| R16 | 10 kΩ | SMD_0402_1005Metric | RESET pull-up |
| U10 | MCP41HV51-503E/ST | MCP45HV51-ST proxy TSSOP-14 | Digital pot block placeholder; exact SPI part required |
| C19 | 100 nF | SMD_0603_1608Metric | U10 VL decoupling |
| R17 | 10 kΩ | SMD_0603_1608Metric | MCP CS pull-up |
| R18 | 10 kΩ | SMD_0603_1608Metric | MCP SHDN pull-down |
Relay Outputs and DNP
Table
| Ref | MPN / Value | Package / footprint note | Role |
|---|---|---|---|
| K1-K3 | G5LE-14-DC5 | G5LE-1-DC5 proxy TH relay | 5 V coil relay proxies; contact pins 1/2/3 no-connect |
| Q4-Q6 | CSD13380F3 | CSD13380F3T proxy | Relay low-side drivers |
| D1-D3 | PMEG2010AEB | SOD-523 | Coil flyback diodes |
| R19-R21 | 1 kΩ 1% | SMD_0603_1608Metric | Gate/drive resistors |
| R22-R24 | 10 kΩ 1% | SMD_0603_1608Metric | Gate bias resistors |
| Q2-Q3 | CSD16406Q3 | DFN-8 | DNP / BENCH_ONLY / intentionally non-operational |
Connectivity by Functional Block
USB / Service
Table
| Net | Connections |
|---|---|
| USB_VBUS_RAW | J1 VBUS pins, U2 VBUS, R3 top |
| USB_CC1 | J1 CC1, U1 IO3, R1 top |
| USB_CC2 | J1 CC2, U1 IO4, R2 top |
| USB_D_P | J1 D+ pair, U1 IO1, U2 D+ |
| USB_D_N | J1 D− pair, U1 IO2, U2 D− |
| USB_VBUS_SENSE_OPEN | R3/R4 divider midpoint; destination not specified |
| DGND_SERVICE | USB shields/grounds, U1/U2 grounds, logic/power ground returns |
| CP2102N_RSTB | U2 RSTB, R5 |
| USB_UART_TXD_MCU_RX | U2 TXD to U9 proxy pin corresponding to brief U9.11 |
| USB_UART_RXD_MCU_TX | U2 RXD to U9 proxy pin corresponding to brief U9.10 |
BQ25185 / Battery / Buck-Boost
Table
| Net | Connections |
|---|---|
| AIRTAG_CHG_5V | U3 IN, C4.1 |
| AIRTAG_CHG_SYS | U3 SYS, C5.1 only |
| AIRTAG_CELL_POS | U3 BAT, U4 BAT, U8 VIN/EN/VINA, C6/C7/C13 positive |
| AIRTAG_CELL_NEG | U4 VSS, C7.2 |
| BQ29700_V_MINUS | U4 V−, R8.1 |
| AIRTAG_PACK_NEG | U3 GND, U3 EP, U3 CE, C4/C5/C6/C13/C14 returns, R6/R7/R8/R15/R25 returns, U8 grounds |
| AIRTAG_3V0 | U8 VOUT, C14.1, R14 top |
| AIRTAG_BUCK_L1 | U8 L1, L2.1 |
| AIRTAG_BUCK_L2 | U8 L2, L2.2 |
| AIRTAG_FB | U8 FB, R14/R15 midpoint |
| BQ25185_ISET_PROG | U3 ISET, C3.1, R7.1 |
| BQ25185_TS_MR | U3 TS/MR, R25.1 |
| BQ25185_VSET_PROG | U3 ILIM/VSET, R6.1 |
HV / 5 V / 3.3 V
Table
| Net | Connections |
|---|---|
| VIN_RAW | U6 VIN, R9.1, Q1 drain |
| VIN_SENSE | U6 SENSE, R9.2 |
| VIN_PROTECTED | U6 OUT, Q1 source, U7 VIN, C10.1, R11.1 |
| Q_HS1_GATE | U6 GATE, Q1 gate |
| MACHINE_POWER_GOOD | U6 PGD, U7 PGOOD, U7 EN/UVLO, R10.2 |
| LM5164_SW | U7 SW, L1.1, C11.2 |
| LM5164_BST | U7 BST, C11.1 |
| LM5164_RON | U7 RON, R11.2 |
| LM5164_FB | U7 FB, R12/R13 midpoint |
| RX_5V | L1.2, C12.1, R12.1, R10.1, U5 IN/EN, K1/K2/K3 coil pin 5, flyback diode cathodes |
| RX_3V3 | U5 OUT, U2 VDD/VREGIN, C1/C2/C9/C15/C16/C17/C19 positives, U9 proxy VDDS pins, U10 VL, R16/R17 pulls |
| LM5069_*_OPEN | UVLO, OVLO, TIMER, PWRSET are intentionally single-pin open decisions from missing input requirements |
Controller / RF / Digital Pot
Table
| Net | Connections |
|---|---|
| CC1354_RESET_N | U9 RESET_N, R16 |
| CC1354_DCOUPL | U9 DCOUPL, C18 |
| CC1354_VDDR | U9 VDDR and VDDR_RF |
| MCP_SPI_SCK / CS_N / MOSI / MISO | U9 proxy DIO pins to U10 proxy pins; not final because U9 and U10 are library proxies |
| MCP_SHDN_SAFE_N | U10 SHDN proxy pin, R18 |
| MCP_ANALOG_TERMINALS_OPEN | U10 analog terminals grouped as open; exact load/interface not specified |
| RF915_N/P_OPEN, RF_PA20_N/P_OPEN | RF interface pins reserved as single-pin open nets; no antenna or matching network invented |
Relay Channels
Table
| Channel | Connections |
|---|---|
| K1 | RX_5V to K1.5/D1.K, K1.4/D1.A/Q4.D on RELAY_K1_COIL_NEG, Q4.S to DGND, U9 proxy pin to R19/Q4 gate, R22 gate bias to DGND |
| K2 | Same pattern with K2/D2/Q5/R20/R23 |
| K3 | Same pattern with K3/D3/Q6/R21/R24 |
| Contacts | K1/K2/K3 pins 1/2/3 are intentionally no-connect external contacts; no machine/load net was created |
| Q2/Q3 | All terminals marked no-connect; DNP / BENCH_ONLY only |
BQ25185 Pin-by-Pin Compliance Table
Official DLH/WSON-10 pin mapping from the brief was used.
Table
| U3 pin | Official function | Schematic net / treatment | Compliance |
|---|---|---|---|
| 1 | SYS | AIRTAG_CHG_SYS with C5.1 only | PASS |
| 2 | BAT | AIRTAG_CELL_POS | PASS |
| 3 | STAT2 | No-connect | Open / accepted for shadow |
| 4 | CE, active low | AIRTAG_PACK_NEG / GND | PASS — grounded and not tied to SYS |
| 5 | GND | AIRTAG_PACK_NEG | PASS |
| 6 | TS/MR | BQ25185_TS_MR via R25 | PASS per brief |
| 7 | ILIM/VSET | BQ25185_VSET_PROG via R6 | PASS per brief |
| 8 | ISET | BQ25185_ISET_PROG via R7 and C3 | PASS per brief |
| 9 | STAT1 | No-connect | Open / accepted for shadow |
| 10 | IN | AIRTAG_CHG_5V with C4.1 | PASS |
| 11 | Exposed pad | AIRTAG_PACK_NEG | PASS |
Critical correction verified: AIRTAG_CHG_SYS connects U3.SYS and C5.1 only. U3.CE is on AIRTAG_PACK_NEG/GND, never on SYS.
C5 / SYS Capacitor Check
C5 is present as 10 uF, 25 V, SMD_0805_2012Metric. It connects C5.1 to AIRTAG_CHG_SYS and C5.2 to AIRTAG_PACK_NEG/GND. The role note records the datasheet/brief requirement: SYS capacitor at least 10 uF nominal, at least 1 uF effective after DC-bias derating, close to SYS/GND.
ERC / Remaining Errors
Final Fase 1 ERC snapshot after fixing U4.V−:
Table
| Check | Count | Item(s) | Disposition |
|---|---|---|---|
| Floating pin | 1 | U8 PS/SYNC | Left open because PS/SYNC policy was not specified; do not tie high/low silently |
| Missing power | 1 | U8 VIN / AIRTAG_CELL_POS not driven | Expected until battery/source definition is provided |
| Single-pin nets | 8 | RF915_N_OPEN, RF915_P_OPEN, RF_PA20_N_OPEN, RF_PA20_P_OPEN, LM5069_UVLO_OPEN, LM5069_OVLO_OPEN, LM5069_TIMER_OPEN, LM5069_PWRSET_OPEN | Intentional open decisions: no RF antenna/matching, no LM5069 threshold/timer/power-limit network values yet |
Schematic legibility still has non-blocking label/kink warnings from net-label stubs after grouping; no PCB layout cleanup was attempted because this run is restricted to Fase 1.
Design-rule airwire errors are expected/irrelevant at this phase because no PCB placement or routing was created.
Open Decisions / Blockers
- Exact Flux library parts needed: J1 DX07S016JA3R1500, U9 CC1354P106T0RGZR, U10 MCP41HV51-503E/ST, U8 TPS63030DSKR, U6 LM5069MM-1, K1/K2/K3 G5LE-14-DC5, Q4/Q5/Q6 CSD13380F3, L1 MSS1246T-683MLB.
- Battery chemistry, capacity, max charge voltage, protection topology, and allowable charge current.
- TPS63030 PS/SYNC policy.
- AIRTAG_CHG_5V source and USB/input current contract.
- LM5069 UVLO, OVLO, TIMER, PWRSET network values and high-voltage input/current limits.
- Relay contact/load/machine interface: K1/K2/K3 pins 1/2/3 remain external/no-connect.
- RF band, antenna part/geometry, keepout, matching network, and compliance target.
- Stack-up, copper weight, dielectric data, impedance, creepage/clearance, manufacturer rules.
- Thermal, enclosure, mounting, connector access, service clearances, and DFM.
Stop Point
Stopped after Fase 1 as requested. No PCB, placement, routing, RF/antenna layout, or machine/load wiring was created.
Final Status for This Run
Scope Executed
Library Gap Policy Used
BOM by Functional Block
USB / Service
BQ25185 / AirTag Power
HV / 5 V / 3.3 V Power
Controller / RF / Digital Pot
Relay Outputs and DNP
Connectivity by Functional Block
USB / Service
BQ25185 / Battery / Buck-Boost
HV / 5 V / 3.3 V
Controller / RF / Digital Pot
Relay Channels
BQ25185 Pin-by-Pin Compliance Table
C5 / SYS Capacitor Check
ERC / Remaining Errors
Open Decisions / Blockers
Stop Point
