IW1690 IW1690-08 --  Low-Power Off-line Digital PWM Controller

Features

• Primary-side feedback eliminates opto-isolators and simplifies design

• Direct drive of BJT switching device

• Multi-mode operation for highest overall efficiency

• Built-in cable drop compensation

• Very tight output voltage regulation

• No external compensation components required

• Complies with CEC/EPA no load power consumption and average efficiency regulations

• Built-in output constant-current control with primary-side feedback

• Low start-up current (10 µA typical)

• Built-in soft start

• Built-in short circuit protection and output overvoltage protection

• Optional AC line under/overvoltage protection

• Fixed switching frequency: 45 kHz, 65 kHz or 75 kHz

• Dynamic base current control

• PFM operation at light load

• Built-in current sense resistor short protection

-------------------------------------------------------------------------------------------------------------------------

【買家必讀】：電子元器件是專業(yè)型的產品，技術含量較高，本身可能存在多種品牌，後輟與封裝，可能導致參數與性能的差異，如有不慎，很有可能導致元器件購買錯誤，為了更好的解決您的問題，所以請您務必在下單前，將產品的封裝、後綴告訴我們。以便我們能準確迅速的為您查詢。

由于客戶采購批量與樣品的價格不同，網上無法統(tǒng)一注明，請您把采購型號通過頁面旺旺或客服 QQ 401799895  或撥打國內銷售部電話：0755-83957301，由客服人員為您報價；有時元件廠商價格稍許變動，本公司未能及時調整，如您覺得售價稍高，請與我們說明并適當議價，我們會根據市場情況給您相應的折扣，我們保證提供最市場最優(yōu)勢的價格最好元器件；感謝支持（所售元件均無含稅，需開普票7%和增值票17%的客戶請說明）

-------------------------------------------------------------------------------------------------------------------------

MJD is a corporation which engaged in agency electronic components. MJD Through seventeen years unrimitting efforts,  aspire to provide our customers with world-leading products and service. Now already became a one of the most famous electronic components distributor in China.

Because of wholesale price is different from sample price, our website can not state.Please send your required part number via email to Sales@hkmjd.com or add our skype id mjdccm898 for online talking.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 ！