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SCM1710ASA

Mornsun
SCM1710A Highly Integrated PWM Controller Features     Package Maximum operating frequency is adjustable Input undervoltage protection Built-in compensation for opto-coupler Compensation for prefeedback     Cycle-by-cycle current limit, overcurrent protection Amplitude and frequency reduction under light load condition Soft startup        VDD overvoltage protection and unde...
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Внешний вид SCM1710ASA

Технические характеристики

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Тип Highly Integrated PWM Controller
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SCM1710A Highly Integrated PWM Controller Features     Package Maximum operating frequency is adjustable Input undervoltage protection Built-in compensation for opto-coupler Compensation for prefeedback     Cycle-by-cycle current limit, overcurrent protection Amplitude and frequency reduction under light load condition Soft startup        VDD overvoltage protection and undervoltage lockout Open loop and CS pin floating protection RI pin short circuit protection Input undervoltage protection Flexible drive technology Frequency jittering Mechanical package: SOP-8 (see “Ordering information” for details). Applications  Isolation AC-DC converters  Functional Description This highly integrated SCM1710A current model PWM controller is ideal for offline AC-DC converter designs. The chip’s accurate operating frequency is achieved by trimming, its maximum switching frequency can be set by means of external resistor values. In case of a light load condition, the chip decreases the operating switching frequency as well as the CS peak current. Under no load (or nearly no load) condition, it operates intermittent, thus keeping the converter efficiency over the entire load range high which also results in a reduced standby power consumption. A number of compensation functions are integrated into the chip to guarantee extremely high output voltage accuracy, good dynamic response and extremely low output voltage temperature coefficient without device adding. The chip also incorporates a soft start function to improve the start stress and effectively avoiding output overshoot under light-load. EMI behavior is improved by means of flexible drive and frequency jittering technologies. A built-in management clock is preventing the loop from entering the dead zone due to interference. In additions, to increase the system reliability the SCM1710A design also includes protection features for VDD undervoltage lockout (UVLO), VDD overvoltage protection (OVP), open loop/output short circuit and overload protection (OLP), CS pin floating protection, RI pin short circuit protection, input undervoltage protection and overtemperature protection. Typical Application Circuit 1 VER.A6 2021.12 Page 1 of 13 MORNSUN Guangzhou Science & Technology Co.,Ltd.reserves the copyright and right of finalinterpretation PDF
Документация на SCM1710ASA 

SCM1710A-EN SCM1710A Highly Inregrated PWM Controller

Дата модификации: 27.12.2021

Размер: 2.94 Мб

13 стр.

SCM1710A Highly Integrated PWM Controller Features     Package Maximum operating frequency is adjustable Input undervoltage protection Built-in compensation for opto-coupler Compensation for prefeedback     Cycle-by-cycle current limit, overcurrent protection Amplitude and frequency reduction under light load condition Soft startup        VDD overvoltage protection and undervoltage lockout Open loop and CS pin floating protection RI pin short circuit protection Input undervoltage protection Flexible drive technology Frequency jittering Mechanical package: SOP-8 (see “Ordering information” for details). Applications  Isolation AC-DC converters  Functional Description This highly integrated SCM1710A current model PWM controller is ideal for offline AC-DC converter designs. The chip’s accurate operating frequency is achieved by trimming, its maximum switching frequency can be set by means of external resistor values. In case of a light load condition, the chip decreases the operating switching frequency as well as the CS peak current. Under no load (or nearly no load) condition, it operates intermittent, thus keeping the converter efficiency over the entire load range high which also results in a reduced standby power consumption. A number of compensation functions are integrated into the chip to guarantee extremely high output voltage accuracy, good dynamic response and extremely low output voltage temperature coefficient without device adding. The chip also incorporates a soft start function to improve the start stress and effectively avoiding output overshoot under light-load. EMI behavior is improved by means of flexible drive and frequency jittering technologies. A built-in management clock is preventing the loop from entering the dead zone due to interference. In additions, to increase the system reliability the SCM1710A design also includes protection features for VDD undervoltage lockout (UVLO), VDD overvoltage protection (OVP), open loop/output short circuit and overload protection (OLP), CS pin floating protection, RI pin short circuit protection, input undervoltage protection and overtemperature protection. Typical Application Circuit VER.A5 2019.07 Page 1 of 13 PDF
Документация на SCM1710ASA 

eng930 Keywords:

Дата модификации: 15.08.2019

Размер: 2.39 Мб

13 стр.

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