TL598CDRG4

Frequency - Switching:	100kHz
Base Part Number:	TL598
Supplier Device Package:	16-SOIC
Package / Case:	16-SOIC (0.154", 3.90mm Width)
Operating Temperature:	0°C ~ 70°C (TA)
Control Features:	Dead Time Control, Frequency Control
Serial Interfaces:	--
Clock Sync:	No
Synchronous Rectifier:	Yes
Duty Cycle (Max):	45%
Series:	--
Voltage - Supply (Vcc/Vdd):	7 V ~ 40 V
Output Phases:	1
Number of Outputs:	2
Topology:	Buck, Boost, Flyback, Forward Converter, Full-Bridge, Half-Bridge, Push-Pull
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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TL598CDRG4 Application Field and Working Principle

The TL598CDRG4 is a DC/DC switching controller from PMIC\'s voltage regulator family. Technically, it is an analog circuit that control the power output of a switching regulator to achieve the desired output voltage. It is the ideal product for applications requiring an enhanced power efficiency level and an improved noise immunity.

Applications

The TL598CDRG4 can be used for a wide variety of applications such as telecommunications equipment, automotive computers and other industrial applications. It is suitable for high-power, high-efficiency DC/DC applications with a wide input voltage range from 5 V to 90 V and can provide up to ±1% stability on output voltage.

Description of Features

The TL598CDRG4 can control buck, boost and isolated DC/DC converters. It provides two control loops for fast transient response and accurate regulation. It has an internal soft-start circuit which is able to reduce inrush current and prevent output overshoots during start-up. It also features frequency modulation with enable/disable function. The frequency can be set as low as 250 kHz and up to 1.5 MHz. Its PWM gain is adjustable with an internal resistor and its overcurrent protection features an adjustable response time. The TL598CDRG4 integrates several features such as: precision reference, error amplifier, comparator, start-up regulator, oscillator and PWM logic. Its error amplifier supplies the reference voltage (VREF) to the comparator which compares VREF with the divider voltage on the feedback (FB) pin. If the FB voltage is lower than VREF, the output of the comparator will be high, and the PWM output will force the switching regulator to generate higher output voltage. When the FB voltage is higher than VREF, the PWM output will be low and will force the switching regulator to generate lower output voltage.

Benefits and Advantages

The TL598CDRG4 has several benefits and advantages over other similar products. It has low quiescent current and low shutdown current. It also has low output adjustment resistance and low standby current. It can be used for low output voltage applications with good ripple rejection. It has a wide operating temperature range of -20℃ to 125℃. Moreover, it has excellent thermal shutdown characteristics and no external components required. Overall, the TL598CDRG4 is an excellent choice for applications requiring an enhanced power conversion efficiency level and improved noise immunity. Its adjustable frequency and extensive features make it a great option for a wide variety of applications and industries.

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