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TL494CDR TL494CN Power Path Management IC Switching Controllers PWM Controller

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TL494CDR TL494CN Power Path Management IC Switching Controllers PWM Controller

Brand Name TI
Model Number TL494CDR
Minimum Order Quantity Contact us
Price Contact us
Payment Terms Paypal, Western Union, TT
Supply Ability 50000 Pieces per Day
Delivery Time The goods will be shipped within 3 days once received fund
Packaging Details SOP16
Description Buck, Boost, Flyback, Forward Converter, Full-Bridge, Half-Bridge, Push-Pull Regulator Positive Output Step-Up, Step-Dow
Maximum Operating Temperature + 85 C
Minimum Operating Temperature - 40 C
Package / Case SOP-16
Type Voltage Mode PWM Controllers
Product Type Coefficient Switching Controllers
Subcategory PMIC - Power Management ICs
Detailed Product Description

TL494CDR TL494CN Power Path Management IC Switching Controllers PWM Controller

 

1 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

     

2 Applications

  • Desktop PCs

  • Microwave Ovens

  • Power Supplies: AC/DC, Isolated, With PFC, > 90 W

  • Server PSUs

  • Solar Micro-Inverters

  • Washing Machines: Low-End and High-End

  • E-Bikes

  • Power Supplies: AC/DC, Isolated, No PFC, < 90 W

  • Power: Telecom/Server AC/DC Supplies: Dual Controller: Analog

  • Smoke Detectors

  • Solar Power Inverters

     

3 Description

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 VCC – 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.

Device Information

PART NUMBER

PACKAGE (PIN)

BODY SIZE

TL494

SOIC (16)

9.90 mm × 3.91 mm

PDIP (16)

19.30 mm × 6.35 mm

SOP (16)

10.30 mm × 5.30 mm

TSSOP (16)

5.00 mm × 4.40 mm

Product Tags: microchip battery management   power management integrated circuit  
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