供應(yīng)TI  開關(guān)電源芯片/TL494CDR SOP

裝規(guī)格：SOIC-16_150mil
品牌：TI(德州儀器)
型號(hào)：TL494IDR描述： 寬
工作溫度范圍，-40℃-85℃工作范圍，工業(yè)級(jí)數(shù)

1 Features 3 Description

The TL494 device incorporates all the functions 1• Complete PWM Power-Control Circuitry

required in the construction of a pulse-width•

Uncommitted Outputs for 200-mA Sink or modulation (PWM) control circuit on a single chip. Source Current Designed primarily for power-supply control, this

• Output Control Selects Single-Ended or device offers the flexibility to tailor the power-supply

Push-Pull Operation control circuitry to a specific application.

• Internal Circuitry Prohibits Double Pulse at The TL494 device contains two error amplifiers, an

Either Output on-chip adjustable oscillator, a dead-time control

• Variable Dead Time Provides Control Over (DTC) comparator, a pulse-steering control flip-flop, a

Total Range 5-V, 5%-precision regulator, and output-control

circuits.

• Internal Regulator Provides a Stable 5-V

Reference Supply With 5% Tolerance The error amplifiers exhibit a common-mode voltage

range from –0.3 V to VCC – 2 V. The dead-time • Circuit Architecture Allows Easy Synchronization control comparator has a fixed offset that provides

approximately 5% dead time. The on-chip oscillator 2 Applications can be bypassed by terminating RT to the reference

• Desktop PCs output and providing a sawtooth input to CT, or it can

drive the common circuits in synchronous multiple-rail • Microwave Ovens

power supplies.

• Power Supplies: AC/DC, Isolated,

With PFC, > 90 W The uncommitted output transistors provide either

common-emitter or emitter-follower output capability.

• Server PSUs The TL494 device provides for push-pull or single•

Solar Micro-Inverters ended output operation, which can be selected

• Washing Machines: Low-End and High-End through the output-control function. The architecture

of this device prohibits the possibility of either output • E-Bikes

being pulsed twice during push-pull operation.

• Power Supplies: AC/DC, Isolated,

No PFC, < 90 W The TL494C device is characterized for operation

from 0°C to 70°C. The TL494I device is characterized

• Power: Telecom/Server AC/DC Supplies: for operation from –40°C to 85°C. Dual Controller: Analog

• Smoke Detectors Device Information(1)

• Solar Power Inverters PART NUMBER PACKAGE (PIN) BODY SIZE

SOIC (16) 9.90 mm × 3.91 mm

PDIP (16) 19.30 mm × 6.35 mm

TL494

SOP (16) 10.30 mm × 5.30 mm

TSSOP (16) 5.00 mm × 4.40 mm

(1) For all available packages, see the orderable addendum at

the end of the data shee