Datasheet > TL594_07

TL594_07

更新时间： 2024-11-29 11:47:43

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德州仪器 - TI		/
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PULSE-WIDTH-MODULATION CONTROL CIRCUIT

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TL594_07 数据手册

TL594

PULSE-WIDTH-MODULATION CONTROL CIRCUIT

www.ti.com

SLVS052G–APRIL 1988–REVISED JANUARY 2007

FEATURES

D, N, NS, OR PW PACKAGE

(TOP VIEW)

•

Complete PWM Power-Control Circuitry

•

Uncommitted Outputs for 200-mA Sink or

Source Current

1IN+

1IN-

2IN+

2IN-

•

Output Control Selects Single-Ended or

Push-Pull Operation

FEEDBACK

DTC

REF

OUTPUT CTRL

Internal Circuitry Prohibits Double Pulse at

Either Output

GND

Variable Dead Time Provides Control Over

Total Range

Internal Regulator Provides a Stable 5-V

Reference Supply Trimmed to 1%

Circuit Architecture Allows Easy

Synchronization

Undervoltage Lockout for Low-V_CCConditions

DESCRIPTION/ORDERING INFORMATION

The TL594 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 systems engineer the

flexibility to tailor the power-supply control circuitry to a specific application.

The TL594 contains two error amplifiers, an on-chip adjustable oscillator, a dead-time control (DTC) comparator,

a pulse-steering control flip-flop, a 5-V regulator with a precision of 1%, an undervoltage lockout control circuit,

and output control circuitry.

The error amplifiers have a common-mode voltage range of –0.3 V to V_CC– 2 V. The DTC 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 be used to drive the common circuitry

in synchronous multiple-rail power supplies.

The uncommitted output transistors provide either common-emitter or emitter-follower output capability. Each

device provides for push-pull or single-ended output operation, with selection by means of the output-control

function. The architecture of these devices prohibits the possibility of either output being pulsed twice during

push-pull operation. The undervoltage lockout control circuit locks the outputs off until the internal circuitry is

operational.

The TL594C is characterized for operation from 0°C to 70°C. The TL594I is characterized for operation from

–40°C to 85°C.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas

Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

12 3 4 5 6 7...19

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与TL594_07相关器件

型号	品牌	获取价格	描述	数据表
TL594_09	UTC	获取价格	PULSE-WIDTH-MODULATION CONTROL CIRCUIT
TL594_10	TI	获取价格	PULSE-WIDTH-MODULATION CONTROL CIRCUIT
TL594_15	UTC	获取价格	PULSE-WIDTH-MODULATION CONTROL CIRCUIT
TL594C	TI	获取价格	PULSE-WIDTH-MODULATION CONTROL CIRCUITS
TL594CD	MOTOROLA	获取价格	PRECISION SWITCHMODE PULSE WIDTH MODULATION CONTROL CIRCUIT
TL594CD	ONSEMI	获取价格	PRECISION SWITCHMODE PULSE WIDTH MODULATION CONTROL CIRCUIT
TL594CD	TI	获取价格	PULSE-WIDTH-MODULATION CONTROL CIRCUITS
TL594CDE4	TI	获取价格	PULSE-WIDTH-MODULATION CONTROL CIRCUIT
TL594CDG	ONSEMI	获取价格	Precision Switchmode Pulse Width Modulation Control Circuit
TL594CDG	ROCHESTER	获取价格	0.5A SWITCHING CONTROLLER, 300kHz SWITCHING FREQ-MAX, PDSO16, SOIC-16

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