Datasheet > LM5039_15

LM5039_15

更新时间： 2024-09-29 01:05:31

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Half-Bridge PWM Controller with Average Current Limit

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LM5039_15 数据手册

LM5039

www.ti.com

SNVS621D –FEBRUARY 2010–REVISED MARCH 2013

LM5039 Half-Bridge PWM Controller with Average Current Limit

Check for Samples: LM5039

FEATURES

DESCRIPTION

The LM5039 Half-Bridge Controller/Gate Driver

contains all of the features necessary to implement

half-bridge topology power converters using voltage

mode control with line voltage feed-forward. The

LM5039 is a functional variant of the LM5035B half-

bridge PWM controller, featuring average current limit

during an overload event to balance the center-point

of the half-bridge capacitor divider. The floating high-

side gate driver is capable of operating with supply

voltages up to 105V. Both the high-side and low-side

gate drivers are capable of 2A peak. An internal high

voltage startup regulator is included, along with

programmable line undervoltage lockout (UVLO). The

oscillator is programmed with a single resistor to

frequencies up to 2MHz. The oscillator can also be

synchronized to an external clock. A current sense

input provides peak cycle-by-cycle and average

current limit. Other features include adjustable hiccup

mode overload protection, soft-start, revision

reference, and thermal shutdown.

•

105V / 2A Half-Bridge Gate Drivers

Synchronous Rectifier Control Outputs with

Programmable Delays

•

High Voltage (105V) Start-up Regulator

Voltage-mode Control with Line Feed-Forward

and Volt • Second Limiting

•

Programmable Average Current Limit

Balances the Half-Bridge Capacitor Divider

Voltage in an Overload Condition

Programmable Hiccup Mode Timer Reduces

Power Dissipation During a Continuous

Overload Event

•

Adjustable Peak Cycle-by-Cycle Over Current

Protection

Resistor Programmed, 2MHz Capable

Oscillator

•

Patented Oscillator Synchronization

Programmable Line Under-Voltage Lockout

Internal Thermal Shutdown Protection

Adjustable Soft-Start

Direct Opto-Coupler Interface

5V Reference Output

PACKAGES

•

HTSSOP-20 (Thermally enhanced)

WQFN-24 (4mm x 5mm)

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...33

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与LM5039_15相关器件

型号	品牌	获取价格	描述	数据表
LM5039MH	NSC	获取价格	Half-Bridge PWM Controller with Average Current Limit
LM5039MH/NOPB	TI	获取价格	Half-Bridge PWM Controller with Average Current Limit
LM5039MHX	NSC	获取价格	Half-Bridge PWM Controller with Average Current Limit
LM5039MHX/NOPB	TI	获取价格	Half-Bridge PWM Controller with Average Current Limit
LM5039SQ/NOPB	TI	获取价格	Half-Bridge PWM Controller with Average Current Limit
LM5039SQX/NOPB	TI	获取价格	Half-Bridge PWM Controller with Average Current Limit
LM5041	TI	获取价格	LM5041 Cascaded PWM Controller
LM5041	NSC	获取价格	Cascaded PWM Controller
LM5041_14	TI	获取价格	Cascaded PWM Controller
LM5041A	TI	获取价格	LM5041A Cascaded PWM Controller

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