New International Rectifier "ebike" gate driver for < 60v

[amberwolf]

Note they call this a "gate drive IC" but really it has practically everything except the throttle-to-PWM conversion and something to determine current limiting thresholds to cut back on PWM as current goes too high, and the actual FETs to drive the phases along with whatever gate resistors/etc you might want.

http://www.irf.com/whats-new/nr121213.html

https://ec.irf.com/v6/en/US/adirect/ir?cmd=catProductDetailFrame&productID=IR3230SPBF

http://www.irf.com/product-info/datasheets/data/ir3230s.pdf

Part Number  	Topology  	Package  	Input voltage  	Output Source/Sink Current
IR3230SPBF 	Three-phase Driver 	SOIC28 	6-60V 	+/- 350mA

Pricing for the IR3230SPbF begins at US $0.95 each in 10,000-unit quantities. ($1.69 each in 1000)

IR3230SPbF three-phase gate drive IC for eBike inverters providing efficient electric mobility.

The IR3230SPbF is a highly integrated three-phase gate drive IC designed specifically to meet the needs of eBike inverters. The new device offers input range up to 60V enabling operation from 48V battery systems, regeneration mode to recharge the battery, and the integration of many protection features to reduce component count and improve system reliability.

The IR3230SPbF integrates the sensor interface and 120°/60° selection capability which eliminates the need for a programmable logic array and simplifies the control scheme while an integrated charge pump enables the removal of three electrolytic capacitors required in a typical system.

“The IR3230SPbF is designed specifically for eBike applications, integrating all necessary functions and protection features to offer a more robust and reliable solution compared to discrete solutions,” said David Jacquinod, Product Marketing Manager, IR’s Automotive Products Business Unit.

The IR3230SPbF is available in an SOIC28 package featuring an environmentally friendly, lead-free and RoHS compliant bill of materials.

 

[circuit]

The datasheet looks strange. Not entirely on companys template. Looks like a small project by an intern...
Could not find any info on active cycle-by-cycle current limiting.
Deadtimes are quite long.
Control algorithm is very heat-making (asynchronous PWM).

 

[bigmoose]

Good find. Shame gate drive current is so low. Good for legal limit controllers, low for Kw level.