Automotive-grade non-synchronous boost controller touts wide input range

ON Semiconductor introduced a new adjustable output non-synchronous boost controller for automotive systems.

The NCV8871 is a wide input voltage device, with a range of 3.2 V to 44 V, which can be used to drive an external N−channel MOSFET. The device incorporates an internal regulator that supplies charge to the gate driver. This new boost controller has a 3.0 µA quiescent current when in sleep mode, allowing power consumption to be minimized. It features a synchronizable switching frequency, with two available versions that can be set at 170 kHz typical, or 1 MHz typical.

Peak current mode control with internal slope compensation ensures device stability over the wide automotive battery range. This also ensures the device is protected during a current fault condition by turning off the power switch for the remainder of the cycle if the current limit is exceeded. Further protection is provided by a thermal shutdown mechanism (with a 170 ⁰C threshold) and a 3.1 V undervoltage lockout.

Key highlights:

• 3.0 µA quiescent current
• Synchronizable switching frequency can be set at 170 kHz typical, or 1 MHz typical.
• 1.2 V 2% Reference voltage
• Wide input voltage range of 3.2 volts (V) to 44 V
• Output power ranges from a few watts (W) up to 200 W in a boost topology. 
• Operating junction temperature of −40 ⁰C to 150 ⁰C
• Pb-free, RoHS compliant SOIC-8 package

Pricing: $0.83 per unit in quantities of 2,500 units.

Availability: production.

Datasheet: Click here.