ZHCS785I February 2012 – January 2021 SN6501
PRODUCTION DATA
The SN6501 transformer driver is designed for low-power push-pull converters with input and output voltages in the range of 3 V to 5.5 V. While converter designs with higher output voltages are possible, care must be taken that higher turns ratios don’t lead to primary currents that exceed the SN6501 specified current limits.
Unlike SN6505 devices, SN6501 does not have soft-start, internal current limit, or thermal shutdown (TSD) features. Therefore to address possible unregulated or large currents, there is a limit to the maximum capacitive load that can be connected to an SN6501 system. Loads exceeding 5uF appear as short circuits to SN6501 during power up and may affect the device’s long-term reliability. When using SN6501, it is recommended to keep capacitive loads below 5uF or incorporate LDOs with low short-circuit current limits or soft-start features to ensure excessive current is not drawn from SN6501.