TL1451ACDRG4

Frequency - Switching:	1kHz ~ 500kHz
Base Part Number:	TL1451A
Supplier Device Package:	16-SOIC
Package / Case:	16-SOIC (0.154", 3.90mm Width)
Operating Temperature:	-20°C ~ 85°C (TA)
Control Features:	Frequency Control
Serial Interfaces:	--
Clock Sync:	No
Synchronous Rectifier:	No
Duty Cycle (Max):	--
Series:	--
Voltage - Supply (Vcc/Vdd):	3.6 V ~ 50 V
Output Phases:	1
Number of Outputs:	2
Topology:	Buck, Boost, Flyback
Output Configuration:	Positive
Function:	Step-Up, Step-Down, Step-Up/Step-Down
Output Type:	Transistor Driver
Part Status:	Active
Packaging:	Tape & Reel (TR)

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TL1451ACDRG4 Application Field and Working Principle TL1451ACDRG4 is an integrated high voltage CMOS voltage regulator specifically designed for use with DC-to-DC step-up and step-down switching power supplies. It features a wide operating voltage range, low between-pins leakage, and low noise. This makes it well suited for a wide range of applications such as digital and telecommunication and automotive systems.TL1451ACDRG4 can be configured to operate either as a step-up, step-down, or inverter-style switched DC-DC converter. Its high on-resistance allows it to drive high voltage inductors and capacitors, making it suitable for high-side buck and boost converters. Its low voltage multi-threshold function provides the flexibility to configure high-side and low-side push-pull and rail splitter topologies in a single device. The switching regulator consists of four main components: the controller, the transformer, the power switch, and the output filter. The controller provides the control signal to the power switch, which in turn is connected to the transformer. The output voltage from the transformer is then filtered to produce the desired output voltage.The key features of TL1451ACDRG4 display the quality and power of this product. It includes over-voltage protection, adjustable output current, adjustable frequency (1.5-200kHz), under-voltage lockout, and soft-start. The over-voltage protection prevents the output voltage from exceeding a pre-set value and the adjustable output current allows the current to be optimized accordingly. The under-voltage lockout prevents the IC from operating if the voltage drops below a set point. The soft-start feature allows the output voltage to gradually rise from 0 to its maximum value. In addition to its features, TL1451ACDRG4 has several protections that help ensure safe and reliable operation. These include thermal protection to protect the device from overheating and over-current protection to prevent the device from drawing too much current. The device also has short circuit protection and a short circuit lockout. In conclusion, TL1451ACDRG4 is a highly integrated high voltage CMOS voltage regulator designed for DC-to-DC step-up and step-down switching power supplies. Its features make it ideal for a wide range of applications and its protections help to ensure safe and reliable operation.

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