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UC3845BNG

UC3845BNG
型號(hào):UC3845BNG
品牌:ON ON
批號(hào):13+
封裝:DIP
原價(jià):1.3
數(shù)量:546564
PDF電子文檔:
訂購(gòu)電話:86755-83294757
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備注:Original in stock 原裝現(xiàn)貨
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UC3845BNG

HIGH PERFORMANCE CURRENT MODE CONTROLLERS
 
 
 
The UC3844B, UC3845B series are high performance fixed
frequency current mode controllers. They are specifically designed for
Off−Line and dc−dc converter applications offering the designer a
cost−effective solution with minimal external components. These
integrated circuits feature an oscillator, a temperature compensated
reference, high gain error amplifier, current sensing comparator, and a
high current totem pole output ideally suited for driving a power
MOSFET.
Also included are protective features consisting of input and
reference undervoltage lockouts each with hysteresis, cycle−by−cycle
current limiting, a latch for single pulse metering, and a flip−flop
which blanks the output off every other oscillator cycle, allowing
output deadtimes to be programmed from 50% to 70%.
These devices are available in an 8−pin dual−in−line and surface
mount (SOIC−8) plastic package as well as the 14−pin plastic surface
mount (SOIC−14). The SOIC−14 package has separate power and
ground pins for the totem pole output stage.
The UCX844B has UVLO thresholds of 16 V (on) and 10 V (off),
ideally suited for off−line converters. The UCX845B is tailored for
lower voltage applications having UVLO thresholds of 8.5 V (on) and
7.6 V (off).
 
 
Features
Pb−Free Packages are Available
Trimmed Oscillator for Precise Frequency Control
Oscillator Frequency Guaranteed at 250 kHz
Current Mode Operation to 500 kHz Output Switching Frequency
Output Deadtime Adjustable from 50% to 70%
Automatic Feed Forward Compensation
Latching PWM for Cycle−By−Cycle Current Limiting
Internally Trimmed Reference with Undervoltage Lockout
High Current Totem Pole Output
Undervoltage Lockout with Hysteresis
Low Startup and Operating Current
 
 
 
Because of wholesale price is different from sample price, our website ca not state Please send your required part number via emai to Sales@hkmjd com or add our skype id mjdccm898 for online talking  As we as welcome you ca us : 0755-83957301 We wi send offer for you;  Sometimes manufacturer's price is unstable,so we don't adjust price i time  if you fee price is a little high for you,just fee free to contact us for consultatio  Thank you for your support !
 
 
 
批發(fā)與零售價(jià)位不同,無法一一明示,詳情請(qǐng)通過郵件或客服咨詢(國(guó)內(nèi)銷售部電話:0755-83957301,企業(yè)QQ: 2850151585), 由于電子元器件價(jià)格不穩(wěn)定,時(shí)常有稍許變動(dòng),本公司未能及時(shí)調(diào)整,如您覺得售價(jià)不適,請(qǐng)與我們說明并適當(dāng)議價(jià),謝謝支持。
與UC3845BNG相關(guān)的產(chǎn)品
與UC3845BNG相關(guān)的型號(hào)
型號(hào) 品牌 批號(hào) 封裝 數(shù)量 備注 資料
 UC3843  ON  13+  DIP  2610  全新原裝 New in stock
 UC3524AN  原廠  16+  DIP-16  55100  全新原裝 Brand new in stock
 UC3526AN  原廠  13+  DIP  21520  New and original in stock
 UC382T-1  UC  00+  TO-220-5  3658  原裝現(xiàn)貨original spot stock
 UC3843AN  ON  13+  DIP  21520  全新原裝TI Brand new in stock
 UC3844  FSC  13+  SOP  24510  100%進(jìn)口原裝 New in stock
 UC3844AD  原廠  13+  SOP  78400  進(jìn)口原裝 New in stock
 UC3844D  FSC  13+  SOP  21200  100%進(jìn)口原裝 New in stock
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