This is a pin-compatible second-source alternative to the 6501-type push-pull transformer driver IC. The company highlights the two features of precise switch timing and over-current protection. This, it says, is to avoid the risk of flux imbalance core saturation, which is one of the main disadvantages of the push-pull topology.
The driver is specifically designed for compact, isolated micropower supply applications requiring low standby power consumption.
Possible applications, for example, include process control, medical instrumentation, low-noise isolated USB power supplies, or isolated power supplies for CAN, RS-485, RS-232, etc.
Range
With an operating temperature range of -40°C – 125°C, the RVP6501 transformer driver IC operates from a 2.8V to 6VDC supply voltage, withstanding 10V transients without damage.
It delivers 500mA across the entire input voltage range. This exceeds the 6501-type specification of 300mA at 5V and 150mA at 3.3V. Like the 6501-type, however, it features break-before-make switching. But it also detects the gate drive voltages to adaptively adjust the dead time spacing, says Recom. This is to automatically compensate for any thermal, load current, and aging drift in the gate threshold voltage.
The RVP6501 also monitors the transistor current to provide continuous short-circuit and overload protection.
RVP6501 features
Features include:
- Push-pull Topology
- Built-in 24V/0.3Ω LDMOS
- 0.8A Current-limit
- Wide Input Voltage Range 2.8-6V
- Short Circuit Protection, Thermal Shut Down, Self Recovery
- Operating Temperature -40°C~+125°C
You can read the full datasheet online.
Recom
“The RVP6501 is an improved version of the industry standard 6501-type transformer driver but at a significantly lower cost” said Recom’s Project Manager IC & Solutions, Sven Krumpel.
RECOM Power has its headquarters in Gmunden, Austria. It also has manufacturing sites in Europe, Thailand, Taiwan, and China. And it has offices in Germany, Singapore, Tokyo, and Denver.
