UC2845M/TR

HGSEMI Semiconductor Co., Ltd.
UC2842/43/44/45 UC3842/43/44/45 CURRENT MODE PWM CONTROLLER DESCRIPTION The UC284x and UC384x are fixed frequency current mode PWM controller. They are specially designed for OFF−Line and DC to DC converter applications with a minimal external components. Internally implemented circuits include a trimmed oscillator for precise duty cycle control, a temperature compensated reference, high gain ...
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Внешний вид SCM1707ASA
  • Корпус: SOP-8
  • Норма упаковки: 1  шт. (в ленте)

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Тип Наименование Корпус Упаковка i Карточка
товара
P= UC2845B (YOUTAI)
 
SOP-8 в ленте 2500 шт
P= UC2845G-S08-R (UTC)
 
— в ленте 20 шт
 

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UC2842/43/44/45 UC3842/43/44/45 CURRENT MODE PWM CONTROLLER DESCRIPTION The UC284x and UC384x are fixed frequency current mode PWM controller. They are specially designed for OFF−Line and DC to DC converter applications with a minimal external components. Internally implemented circuits include a trimmed oscillator for precise duty cycle control, 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. Protection circuitry includes built under voltage lockout and current limiting. The UC2842/44, UC3842/44 have UVLO thresholds of 16 V (on) and 10 V (off). The corresponding thresholds for the UC2843/45, UC3843/45 are 8.4V (on) and 7.6V (off). The UC2842/43, UC3842/43 can operate within 100% duty cycle. The UC2844/45, UC3844/45 can operate within 50% duty cycle. The UC2842/44/44/45 is characterized for operation from TA = -40°C to 85°C. The UC3842/43/44/45 is characterized for operation from TA = 0°C to 70°C. FEATURES • • • • Low Start-Up and Operating Current High Current Totem Pole Output Under voltage Lockout With Hysteresis Operating Frequency Up To 500KHz ORDERING INFORMATION DEVICE Package Type MARKING Packing Packing Qty UC2842N DIP8 UC2842 TUBE 2000/box UC2843N DIP8 UC2843 TUBE 2000/box UC2844N DIP8 UC2844 TUBE 2000/box UC2845N DIP8 UC2845 TUBE 2000/box UC2842M/TR SOP8 UC2842 REEL 2500/reel UC2843M/TR SOP8 UC2843 REEL 2500/reel UC2844M/TR SOP8 UC2844 REEL 2500/reel UC2845M/TR SOP8 UC2845 REEL 2500/reel UC3842N DIP8 UC3842 TUBE 2000/box UC3843N DIP8 UC3843 TUBE 2000/box UC3844N DIP8 UC3844 TUBE 2000/box UC3845N DIP8 UC3845 TUBE 2000/box UC3842M/TR SOP8 UC3842 REEL 2500/reel UC3843M/TR SOP8 UC3843 REEL 2500/reel UC3844M/TR SOP8 UC3844 REEL 2500/reel UC3845M/TR SOP8 UC3845 REEL 2500/reel http://www.hgsemi.com.cn 1 2018 JUN PDF
Документация на UC2845M/TR 

Microsoft Word - UC3842A_Ì_-BW.doc

Дата модификации: 02.09.2005

Размер: 3.18 Мб

11 стр.

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