Before substituting, compare the datasheets of the equivalent ICs. The LA3161 is the most common drop-in replacement for the original Highway 09 in discrete switch-mode applications.
VBAT (24V) ──┬── 0.1 µF ─── VBAT_pin ├── 10 µF (electrolytic) ── GND └── LED0 ── 120 Ω ──[LED string]─┬─ GND highway 09 ic datasheet
The Highway 09 IC family is designed to manage power distribution in systems that require hot-swapping of circuit boards or modules. Hot-swapping allows for the replacement or insertion of boards without shutting down the system, thereby increasing system availability and reducing maintenance downtime. The Highway 09 ICs integrate a range of features to ensure safe and efficient power management, including under-voltage lockout, overcurrent protection, and circuit breaker functions. Hot-swapping allows for the replacement or insertion of
Regulated output variants can provide up to 1A. Quiescent Current: Extremely low, often around 10μA. Pin Configuration (16-Pin DIP) Quiescent Current: Extremely low, often around 10μA
If you need the exact dimensional footprint (mechanical drawing), search for "24-DIP 300mil mechanical dimensions" – the package is standard.
Based on laboratory measurements and service manual references (Sanyo LA series and Rohm BA series equivalents), here are the typical absolute maximum ratings and electrical characteristics.
HIGHWAY09A (often referred to as Highway 09) is a specialized integrated circuit manufactured by