LT1244IS8#TRPBF

Duty Cycle:	48%
Base Part Number:	LT1244
Mounting Type:	Surface Mount
Supplier Device Package:	8-SOIC
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Operating Temperature:	-40°C ~ 100°C (TJ)
Control Features:	Frequency Control
Fault Protection:	--
Frequency - Switching:	Up to 500kHz
Series:	--
Voltage - Supply (Vcc/Vdd):	10 V ~ 25 V
Voltage - Start Up:	16V
Topology:	Buck
Voltage - Breakdown:	--
Internal Switch(s):	No
Output Isolation:	Isolated
Part Status:	Active
Packaging:	Tape & Reel (TR)

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PMIC - AC DC Converters, Offline Switchers

LT1244IS8#TRPBF is a unique industry standard, off-line switcher in AC/DC conversion market. It is a power management integrated circuit suitable for light industry and commercial application. It can be used for switching-mode power supplies, electrical equipment, and motion control applications. In addition, it has linear voltage regulators, DC-to-DC converters and motor speed controllers.The LT1244IS8#TRPBF integrates a power MOSFET, featuring low RDS(ON) of 0.8 ohm, driven by high-voltage start-up circuits, high-voltage oscillator, a complete range of current-sense and fault protection features, as well as a set of control logic and timing adjustment. It is designed to provide the necessary solution for many Switch-Mode Power Supplies (SMPS) designed for applications such as computer power supplies, audio power amplifiers, consumer electronics, telecommunication equipment and small motors. The LT1244IS8#TRPBF core is built around a PWM controller that provides both an internal oscillator and an independent error amplifier necessary to form an AC/DC converter. This PWM controller ensures an optimal solution for switching power supplies with low cost and low power consumption. The main application field of LT1244IS8#TRPBF is composed of AC/DC converters, offline switchers, linear voltage regulators, DC-to-DC converters and motor speed controllers. Its main features are low power consumption, wide output instantaneous current range, high surge current and peak current capability, and fault protection features. Its working principle is quite simple. The power MOSFET is turned on/off by the PWM controller. The on/off time of the PWM is determined by the feedback and error amplifier. Once the voltage is sensed and compared with the reference voltage, then the PWM generates the appropriate signal to turn the Mosfet on and off accordingly. In the AC/DC switching mode, the AC voltage is first rectified by a bridge rectifier; then it goes to an input filter capacitor. After the voltage is regulated, it will go to the output filter capacitor. The output filter capacitor is connected to the output of the LT1244IS8#TRPBF. Nowadays, LT1244IS8#TRPBF plays a key role in many electronic products such as game consoles, DVD player, switch thyristor regulators and computer power supplies. Owing to its outstanding performance and efficiency, it is widely used in these application fields. The LT1244IS8#TRPBF is an ideal switching solution for many applications because of its wide input and output instantaneous current range, its high surge and peak current capability, and its low-power consumption. This makes the LT1244IS8#TRPBF an excellent choice for the applications mentioned previously.Furthermore, the LT1244IS8#TRPBF has a range of fault protection features and a set of control logic and timing. This ensures that all the system requirements are met and there is no need for extra components. In conclusion, the LT1244IS8#TRPBF is a high performance, cost-effective solution for AC/DC conversion and various application fields such as switching-mode power supplies, electrical equipment, motion control applications, and linear voltage regulators. Its features and the fault protection features make it an attractive solution for the application fields mentioned above.

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