TL494CDR Voltage Mode PWM Controller IC

• shape: SMD
• Conductive Type: Unipolar Integrated Circuit
• Integration: ULSI
• Technics: Thin Film IC
• Application: Standard Generalized Integrated Circuit
• Type: Analog IC
• Model NO.: TL494CDR
• MFG.: TI
• D/C: 17+
• Package: SOIC-16
• Quality: Genuine New Original
• Transport Package: Box
• Origin: China
• HS Code: 8542390000
• Production Capacity: 1000000PCS

Product Description

Description

TL494CDR: Voltage Mode PWM Controller 40V 200mA 16-Pin SOIC T/R - Tape and Reel

Package: SOIC-16

Mfr. Part#: TL494CDR

Mfr.: TI

Datasheet: (e-mail or chat us for PDF file)

ROHS Status: 

Quality: 100% Original

Warranty: 180 days
 

Product Status	Active
Output Type	Transistor Driver
Function	Step-Up, Step-Down, Step-Up/Step-Down
Output Configuration	Positive
Topology	Buck, Boost, Flyback, Forward Converter, Full-Bridge, Half-Bridge, Push-Pull
Number of Outputs	2
Output Phases	1
Voltage - Supply (Vcc/Vdd)	7V ~ 40V
Frequency - Switching	1kHz ~ 300kHz
Duty Cycle (Max)	45%
Synchronous Rectifier	No
Clock Sync	No
Serial Interfaces	-
Control Features	Dead Time Control, Frequency Control
Operating Temperature	0°C ~ 70°C (TA)
Mounting Type	Surface Mount
Package / Case	16-SOIC (0.154", 3.90mm Width)
Supplier Device Package	16-SOIC
Base Product Number	TL494

 

The TL494 device incorporates all the functions required in the construction of a pulse-width-modulation (PWM) control circuit on a single chip. Designed primarily for power-supply control, this device offers the flexibility to tailor the power-supply control circuitry to a specific application.

The TL494 device contains two error amplifiers, an on-chip adjustable oscillator, a dead-time control (DTC) comparator, a pulse-steering control flip-flop, a 5-V, 5%-precision regulator, and output-control circuits.

The error amplifiers exhibit a common-mode voltage range from -0.3 V to V_CC - 2 V. The dead-time control comparator has a fixed offset that provides approximately 5% dead time. The on-chip oscillator can be bypassed by terminating RT to the reference output and providing a sawtooth input to CT, or it can drive the common circuits in synchronous multiple-rail power supplies.

The uncommitted output transistors provide either common-emitter or emitter-follower output capability. The TL494 device provides for push-pull or single-ended output operation, which can be selected through the output-control function. The architecture of this device prohibits the possibility of either output being pulsed twice during push-pull operation.

The TL494C device is characterized for operation from 0°C to 70°C. The TL494I device is characterized for operation from -40°C to 85°C.

 

Key Features

• Complete PWM Power-Control Circuitry
• Uncommitted Outputs for 200-mA Sink or 
  Source Current
• Output Control Selects Single-Ended or 
  Push-Pull Operation
• Internal Circuitry Prohibits Double Pulse at 
  Either Output
• Variable Dead Time Provides Control Over 
  Total Range
• Internal Regulator Provides a Stable 5-V Reference Supply With 5% Tolerance
• Circuit Architecture Allows Easy Synchronization

Company Product Line

 

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• Located in Shenzhen, the electronic market center of China.
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