MC33067

MC33067 - High Performance Resonant Mode Controllers

The MC34067/MC33067 are high performance zero voltage switch

resonant mode controllers designed for off−line and dc−to−dc

converter applications that utilize frequency modulated constant

off−time or constant deadtime control. These integrated circuits

feature a variable frequency oscillator, a precise retriggerable

one−shot timer, temperature compensated reference, high gain wide

bandwidth error amplifier, steering flip−flop, and dual high current

totem pole outputs ideally suited for driving power MOSFETs.

Also included are protective features consisting of a high speed fault

comparator and latch, programmable soft−start circuitry, input

undervoltage lockout with selectable thresholds, and reference

undervoltage lockout. These devices are available in dual−in−line and

surface mount packages.

Features

• Zero Voltage Switch Resonant Mode Operation

• Variable Frequency Oscillator with a Control Range

Exceeding 1000:1

• Precision One−Shot Timer for Controlled Off−Time

• Internally Trimmed Bandgap Reference

• 4.0 MHz Error Amplifier

• Dual High Current Totem Pole Outputs

• Selectable Undervoltage Lockout Thresholds with Hysteresis

• Enable Input

• Programmable Soft−Start Circuitry

• Low Startup Current for Off−Line Operation

• Pb−Free Packages are Available* 

由于客户采购批量与样品的价格不同，网上无法统一注明，请您把采购型号通过邮件或客服QQ：2850151585 发给我们，也可以拨打明佳达国内销售部电话：0755-83957301，由客服人员为您报价；有时元件厂商价格稍许变动，本公司未能及时调整，如您觉得售价稍高，请与我们说明并适当议价，感谢支持!

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Shipping:

1. MJD needs about 3 BUSINESS DAY to handle the order after received payment. after receiving your payment. Otherwise, we will state it in the invoice in advance.

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REFUNDS & RETURN:

We offer a warranty on all items that we sold. Item will be tested before ship,it will be in good condition,if there are some problems with the item,feel free to contact us.Please Email us to notify a defective item. Unless otherwise specified, this item comes with 30 days warranty from the shipment date.

You must contact us before returning any product. All returns must be made within 30 days from this shipment date.Return must be in new condition(the SAME CONDITION as it was sent to you)

Because of wholesale price is different from sample price, our website can not state. Please send your required part number via email Sales@hkmjd.com or skype id mjdccm898 to us.  As well as welcome you call us : 0755-83957301  We will send offer for you;  Sometimes manufacturer's price is unstable, so we don't adjust price in time. if you feel price is a little high for you, just feel free to contact us for consultation. Thank you for your support ！