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20X GM3844AS8R GAMMA Current Mode PWM Controller 1A 16V/6V 50% 1W SO-8

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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 -0.1μA
Input Bias Current Max -2.0μA
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 -3.0μA
Input Bias Current Max -10μA
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 125°C
Storage Temperature -65 to 150°C
Lead Temperature (Soldering 10 Sec) 260°C
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.
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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.
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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.

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