NXP Semiconductors
TEA19362T
GreenChip SMPS primary side control IC with fixed frequency operation
TEA19362T All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2016. All rights reserved.
Product data sheet Rev. 1 — 9 August 2016
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8.9 Soft start-up (ISENSE pin)
To prevent audible noise during start-up or a restart condition, an integrated soft start
feature is implemented. When the converter starts switching, the primary peak current
slowly increases to the regulated level with 15 steps.
The soft start time constant is 3.6 ms, set by an internal time.
8.10 Driver (DRIVER pin)
The driver circuit to the gate of the power MOSFET has a current sourcing capability of
300 mA and a current sink capability of 750 mA. These capabilities allow a fast turn-on
and turn-off of the power MOSFET for efficient operation.
The maximum driver output is limited to 10.5 V. The DRIVER output pin can be
connected to the gate of a MOSFET directly or via a resistor.
