1S LiPo Charger w/ USB-C (H05R0x)

Specifications

Front-end

• MAX17330X22+T 28μA IQ stand-alone charger, fuel gauge, protector, and battery internal self-discharge detection IC for 1-cell lithium-ion/polymer batteries:
  • Low-Power Charging
    • 1mA to 500mA directly from universal 5V USB
    • No USB identification/coordination needed
  • High-Power Parallel Packs (>1000mA)
    • Independently charges parallel packs
    • Prevents cross-charging for parallel batteries
    • Coordinates external DC-DC with alerts
    • Minimizes dropout and heat
  • Protection and Charging Control—pack or host side
• TPS631000DRLR 1.5-A Output Current, High Power Density Buck-Boost Converter:
  • 1.6-V to 5.5-V input voltage range
    – Device input voltage > 1.65 V for start-up
  • 1.2-V to 5.3-V output voltage range (adjustable)
  • High output current capability, 3-A peak switch current
    – 2-A output current for VIN ≥ 3 V, VOUT = 3.3 V
    – 1.5-A output current for VIN ≥ 2.7 V, VOUT = 3.3 V
  • High efficiency over the entire load range
    – 8-μA typical quiescent current
    – Power save mode
  • 150-mV load-step response at a 1-A current step
  • Peak current buck-boost mode architecture
    – Seamless mode transition with < 20-mV output ripple
    – Forward and reverse current operation
    – Start-up into pre-biased outputs
    – Fixed-frequency operation with 2-MHz switching
• LD39200PU33R 2 A high PSRR ultra low drop linear regulator with reverse current protection: 
  • Input voltage from 1.25 V to 6.0 V
  • Ultra low drop: 130 mV (typ.) at 2 A load
  •  1% output accuracy at 25 °C, 2% in full temperature range
  • High PSRR: 70 dB at 1 kHz
  • Reverse current protection
  • 2 A guaranteed output current
  • Available in fixed and adjustable output voltage version from 0.5 V with 100 mV step
  • Internal current and thermal limit
  • Operating junction temperature range: -40 °C to 125 °C

Back-end

• STM32G0B1CEU6N 32-bit ARM Cortex-M0 MCU.
• 8MHz external oscillator.
• Five array ports and eleven power ports (+3.3V and GND).
• Access to 5xUART, BOOT0, RESET.

Physical Properties

• Shape: Dual-hexagon
• Size: 60 mm short diagonal, 17.32 mm side
• Area: 15.6 cm^2
• Weight: 20 g
• Soldermask Color: Dark green
• Surface Finish: ENIG (gold) or HASL-LF (tin)