ICE3BR1765JXKLA1

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ICE3BR1765JXKLA1 application field and working principle

The ICE3BR1765JXKLA1 is a highly efficient, medium-power offline switcher designed for a wide range of off-line AC/DC applications requiring up to 18 W power. The features include an integrated voltage regulator, auto restart and externally programmable shut-down current limit. The maximum primary switch current is up to 1 A (7.5 A for the ICE3BR1765JXKLA2).

The ICE3BR1765JXKLA1 is especially suited for applications in the white goods, consumer electronics and automation fields. It is highly reliable in terms of EMI and has low power dissipation while operating with high efficiency. It is a highly cost-effective solution as the integrated components increase system integration.

The IC provides an integrated high-voltage current-mode PWM regulator. The IC includes a voltage sensing network consisting of a voltage divider and a fault monitor. An internal regulated voltage of 8.5 V is used to provide the regulated output voltage in the range of 4 V to 10 V.

The IC also provides protection against overcurrent and overvoltage. The current-sensing stage compares the sensed load current with a user-programmable peak current limit. If the peak current limit is exceeded, the output is disconnected and the IC goes into Auto Restart mode. The overvoltage protection feature monitors the FB voltage and disconnects the output when it exceeds the OVP threshold.

The IC can operate in several different modes. The Burst Mode operation provides high efficiency when the load current is low and is enabled by an external pin. The low-power detection mode automatically shuts down the output when the load is in a low power state and is enabled by an external resistor to ground. The external resistor also sets the detection voltage for this mode.

The ICE3BR1765JXKLA1 is a very versatile and efficient offline switcher IC providing reliable operation with low EMI, low power dissipation and high efficiency. It is ideal for a wide range of AC/DC applications where high power efficiency and reliable operation are needed.

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