The MAX1823 is a dual channel USB switch with integrated current limiting, overtemperature protection, short circuit protection and auto-reset.
The MAX1823 is a dual USB switch with an auto‑reset feature that latches off the switch on a short‑circuit and restarts when the fault is cleared. Each channel can supply up to 720 mA and meets USB power specifications while consuming only 50 µA (both switches on) and 3 µA in standby.
The device includes built‑in thermal overload protection, undervoltage‑lockout (UVLO), and individual fault indicator outputs (FAULTA, FAULTB). Electrical characteristics such as supply voltage range, on‑resistance, and turn‑on/off delays are provided for proper PCB layout and reliable operation in portable applications. This manual is written in Japanese.
| Supply Voltage Range | 4.0 V – 5.5 V |
|---|---|
| Continuous Load Current per Channel | 720 mA |
| Standby Supply Current (MAX1823B/H) | 3 µA |
| Turn‑Off Delay | 1 ms – 3 ms |
Each channel can supply up to 720 mA.
When a short‑circuit occurs the switch latches off; it automatically restarts once the fault is removed.
The standby supply current is 3 µA.