This IC is a step-up switching regulator controller developed using high withstand voltage CMOS process technologies.
It is suitable for automotive start-stop systems and emergency battery backup systems due to its wide input operating range of 3.0 V to 36 V and the capacity to extend the input voltage below the operating input voltage range after startup.
This IC enters a low current consumption sleep mode when the output voltages are equal to or higher than the sleep voltage, and it starts switching operation when the output voltage drops below the wake-up voltage.
This IC contributes to system space saving as it adopted suitable packages for high-density mounting like small-sized HSNT-8(2030), can operate at very high switching frequencies, and the peripheral parts can be made compact.
An overcurrent protection circuit protects the IC and the coil from excessive load current, and a thermal shutdown circuit prevents damage from heat generation.
Features
- Input voltage
- 3.0 V to 36.0 V
- Low voltage operation after startup
- Wake-up voltage triggers auto startup
- Control system
- Current mode
- Output regulation voltage
- 6.80 V, 8.50 V
- Output regulation voltage accuracy
- ±2.0%
- Oscillation frequency
- 2.2 MHz typ., 400 kHz typ.
- Overcurrent protection function
- Pulse-by-pulse method
- Thermal shutdown function
- 170°C typ. (detection temperature)
- Short-circuit protection function
- Hiccup control
- Under voltage lockout function (UVLO)
- 2.75 V typ. (detection voltage)
- Input and output capacitors
- Ceramic capacitor compatible
- Operation temperature range
- Ta = −40°C to +125°C
- Lead-free (Sn 100%), halogen-free
- Withstand 45 V load dump
- AEC-Q100 in process*1
*1. Contact our sales representatives for details.
Applications
- Automotive and industrial step-up
- Automotive start-stop systems
- Emergency battery backup systems
- For automotive use (engine, transmission, suspension, ABS, related-devices for EV / HEV / PHEV, etc.)