Datasheet > LM5041_14

LM5041_14

更新时间： 2024-01-09 01:54:42

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Cascaded PWM Controller

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LM5041_14 数据手册

LM5041

www.ti.com

SNVS248D –AUGUST 2003–REVISED MARCH 2013

LM5041 Cascaded PWM Controller

Check for Samples: LM5041

FEATURES

PACKAGES

•

Internal Start-up Bias Regulator

•

TSSOP-16

Programmable Line Under-Voltage Lockout

(UVLO) with Adjustable Hysteresis

WSON-16 (5x5 mm) Thermally Enhanced

DESCRIPTION

•

Current Mode Control

The LM5041 PWM controller contains all of the

features necessary to implement either current-fed or

voltage-fed push-pull or bridge power converters.

These “Cascaded” topologies are well suited for

multiple output and higher power applications. The

LM5041’s four control outputs include: the buck stage

controls (HD and LD) and the push-pull control

outputs (PUSH and PULL). Push-pull outputs are

driven at 50% nominal duty cycle at one half of the

switching frequency of the buck stage and can be

configured for either a specified overlap time (for

current-fed applications) or a specified both-off time

(for voltage-fed applications). Push-pull stage

MOSFETs can be driven directly from the internal

gate drivers while the buck stage requires an external

driver such as the LM5102. The LM5041 includes a

high-voltage start-up regulator that operates over a

wide input range of 15V to 100V. The PWM controller

is designed for high-speed capability including an

oscillator frequency range up to 1 MHz and total

propagation delays of less than 100ns. Additional

features include: line Under-Voltage Lockout (UVLO),

soft-start, an error amplifier, precision voltage

reference, and thermal shutdown.

Internal Error Amplifier with Reference

Dual Mode Over-Current Protection

Leading Edge Blanking

Programmable Push-Pull Overlap or Dead

Time

•

Internal 1.5A Push-Pull Gate Drivers

Programmable Soft-start

Programmable Oscillator with Sync Capability

Precision Reference

Thermal Shutdown

APPLICATIONS

•

Telecommunication Power Converters

Industrial Power Converters

Multi-Output Power Converters

+42V Automotive Systems

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.

All trademarks are the property of their respective owners.

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...22

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与LM5041_14相关器件

型号	品牌	获取价格	描述	数据表
LM5041A	TI	获取价格	LM5041A Cascaded PWM Controller
LM5041A	NSC	获取价格	Cascaded PWM Controller
LM5041A_15	TI	获取价格	LM5041A Cascaded PWM Controller
LM5041AMTC	TI	获取价格	LM5041A Cascaded PWM Controller
LM5041AMTC	NSC	获取价格	Cascaded PWM Controller
LM5041AMTC/NOPB	NSC	获取价格	IC SWITCHING CONTROLLER, 685 kHz SWITCHING FREQ-MAX, PDSO16, TSSOP-16, Switching Regulator
LM5041AMTC/NOPB	TI	获取价格	LM5041A Cascaded PWM Controller
LM5041AMTC-NOPB	TI	获取价格	LM5041A Cascaded PWM Controller
LM5041AMTCX	TI	获取价格	LM5041A Cascaded PWM Controller
LM5041AMTCX	NSC	获取价格	Cascaded PWM Controller

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