DESCRIPTION
M51994 is a semiconductor integrated circuit designed for
controlling primary-control two-output switching regulators
and it is best suitable for obtaining DC stabilized voltage from
the commercial power supply.
This provides fast rise/fall time of the output voltage as
well as output current, allowing the direct driving of the
MOSFEТ.
This also provides fast rise/fall time on output pulses and
it equips a high-speed and highly-sensitive current limit circuit,
therefore, you can create really high-speed switching regulators
using the device.
Since it contains a timer type protection circuit, the protection in case of any excess output current (i.e. due to a
short-circuit) can be done easily only by adding few parts to
the primary side.

FEATURES
Uses a pulse-by-pulse current limiting method (CLM-pin)
which minimizes required peripheral circuits.
Supports the protection for excess output current
Timer-type protection circuit
Uses a deforming totempole output method which require
small through current.
Supports 2-output drive functions using a steering circuit.
(Applicable for push-pull, half-bridge, and full-bridge
circuits)
Supports the OVP function which keeps the power OFF
status once a signal is input.
Small pre-operation current 110µA (Standard)
Output rise time = 60ns, Output fall time = 40ns