Store Seller Profile Feedbacks Contact Integrated Circuits - ICs Power Management ICs PWM Controllers close 20X GM3844AS8R GAMMA Current Mode PWM Controller 1A 16V/6V 50% 1W SO-8 Ready to Ship Ask a Question 30-Day Return Description Specifications Shipping Return Policy Disclaimer 20Pcs GM3844AS8R GAMMA Current Mode PWM Controller 1A 16V/6V 50% 1W SO-8 Specification Manufacturer APM Gamma Part Number GM3842AS8R Package SOP-8 Start Threshold Voltage Min 14.5V Start Threshold Voltage Typ 16.0V Start Threshold Voltage Max 17.5V Minimum Operating Voltage Min 8.5V Minimum Operating Voltage Typ 10.0V Minimum Operating Voltage Max 11.5V Maximum Duty Cycle Min 95% Maximum Duty Cycle Typ 97% Maximum Duty Cycle Max 100% Minimum Duty Cycle 0% Start-Up Current Min 0.17mA Start-Up Current Typ 0.3mA Operating Supply Current Min 13mA Operating Supply Current Typ 17mA Zero Voltage 30V Reference Output Voltage Min 4.9V Reference Output Voltage Typ 5.0V Reference Output Voltage Max 5.1V Line Regulation Typ 6.0mV Line Regulation Max 20mV Load Regulation Typ 6.0mV Load Regulation Max 25mV Short Circuit Output Current Min -100mA Short Circuit Output Current Typ -180mA Oscillation Frequency Min 47KHz Oscillation Frequency Typ 52KHz Oscillation Frequency Max 57KHz Frequency Change with Voltage Typ 0.05% Frequency Change with Voltage Max 1% Oscillator Amplitude 1.6V Input Bias Current Typ -0.1?A Input Bias Current Max -2.0?A Input Voltage Min 2.42V Input Voltage Typ 2.5V Input Voltage Max 2.58V Open Loop Voltage Gain Typ 65dB Open Loop Voltage Gain Max 90dB Power Supply Rejection Ratio Typ 60dB Power Supply Rejection Ratio Max 70dB Output Sink Current Min 2mA Output Sink Current Typ 7mA Output Source Current Min 0.5mA Output Source Current Typ 1.0mA High Output Voltage Min 5.0V High Output Voltage Typ 6.0V Low Output Voltage Min 0.1V Low Output Voltage Typ 0.8V Current Sense Input Voltage Gain Min 2.85V/V Current Sense Input Voltage Gain Typ 3.0V/V Current Sense Input Voltage Gain Max 3.15V/V Maximum Input Signal Min 1.0V Maximum Input Signal Max 1.1V Supply Voltage Rejection Typ 70dB Input Bias Current Typ -3.0?A Input Bias Current Max -10?A Low Output Voltage Min 0.8V Low Output Voltage Typ 0.4V High Output Voltage Min 13V High Output Voltage Typ 13.5V Rise Time Min 45ns Rise Time Max 150ns Fall Time Min 35ns Fall Time Max 150ns Supply Voltage Max 30V Output Current Source or Sink Max 1A Input Voltage -0.3V to +5.5V Maximum Power Dissipation 1.0W Error Amp Output Sink Current Max 10mA Operating Ambient Temperature Range -40 to 125C Storage Temperature -65 to 150C Lead Temperature (Soldering 10 Sec) 260C Features Low Start-Up and Operating Current, Automatic Feed Forward Compensation, Current Mode Operating Frequency up to 500KHz, Trimmed Oscillator Discharge Current for Precise Duty Cycle Control, Latching PWM for Cycle-By-Cycle Current Limiting, Under Voltage Lockout with Hysteresis, High Current totem Pole Output Stage Applications Off-line flyback or forward converters, DC-to-DC buck boost converter, Monitor Power Supply Shipping Policy Our go-to options for small to medium items are USPS Ground Advantage and USPS Priority Mail, known for their reliable tracking and peace of mind. Smaller items might qualify for USPS First Class Mail. Contact us to discuss this option before purchasing. Note: This method is less recommended due to the potential for delays. Return Policy We offer a 30-day return policy, no questions asked. If you choose to provide a reason for the return, it will assist us in improving and fix the issue. Packaging Our items are packaged according to their needs?some in ESD bags with pins secured in protective sponge, others in foam-enclosed boxes. For larger quantities, options include broken tubes for transistors or cartons. We welcome your suggestions for packaging preferences. Sofitrek Product Disclaimer Nature of Goods: All products offered by Sofitrek are surplus items. These products may originate from older batches, series, or have earlier date codes compared to those currently provided by the original manufacturers or their authorized dealers. Non-Affiliation: Sofitrek operates independently and is not an authorized distributor, nor is it affiliated or associated with the manufacturers of the products sold. Consequently, Sofitrek does not represent the manufacturers of these products in any capacity. Exclusion of Manufacturer's Warranty: Since Sofitrek is not an authorized distributor, the original manufacturer's warranties are explicitly not applicable to the products sold. This includes any implied warranties of merchantability or fitness for a particular purpose. Firmware and Software: Some products may include pre-installed firmware or software. However, Sofitrek does not guarantee the presence, compatibility, or the revision level of such firmware or software as suitable for your specific application. Furthermore, Sofitrek expressly disclaims any representation regarding your right or ability to download, obtain, or install any firmware or software for the products from any source, including the original manufacturers or their distributors. Limitation of Liability: Sofitrek shall not be held liable for any form of damages?direct, indirect, incidental, consequential, or otherwise?arising from the use, misuse, or inability to use any product sold. This includes, but is not limited to, damages for loss of profits, goodwill, use, data, or other intangible losses. The buyer assumes all responsibility for the safe and lawful use of the product and agrees to indemnify and hold harmless Sofitrek against any claims, liabilities, or expenses related to the product's use. Compliance and Responsibility: The buyer is solely responsible for adhering to all terms of any End-User License Agreement or similar documentation related to the products, particularly concerning the obtaining, installation, and use of firmware or software. Severability: If any provision of this disclaimer is found to be invalid or unenforceable, the remaining provisions shall continue to be in full force and effect. By purchasing from Sofitrek, the buyer acknowledges having read, understood, and agreed to this disclaimer in its entirety. Links Shop Feedbacks Contact Us Sofitrek