First, SN3910 performance characteristics
The SN3910 is a peak current sense step-down LED driver that operates in a constant off-time mode. It allows voltage sources ranging from DC8-45V or AC110V/220V to drive high brightness LEDs .
The SN3910 can adjust the LED brightness according to the PWM signal. The acceptable duty cycle of the PWM control signal is 0~100%. It also includes a 50-240mV linear dimming input for linear adjustment of LED current and temperature compensation.
The SN3910 uses peak current mode control, which does not require any loop compensation to achieve good output current regulation. The response time of PWM dimming is determined by the rising and falling rates of the inductor current, resulting in very short rise and fall times.
Second, SN3910 typical application circuit
Figure 1 SN3910 typical application circuit
Third, SN3910 3W 350mA power supply design
Figure 2 SN3910 3W 350mA power supply design
Description of Stacked D-Sub I/O Connectors
Antenk's connectors are designed for applications requiring multiple connector ports with limited PCB space
The condensed footprint of Antenk's dual port D-sub solution is available in four industry sizes, three connector spacing options, and six hardware configurations for one of the broadest stacked D-sub offerings on the market in standard and high-density variations.
Stacked D-sub I/O connectors are designed for applications requiring multiple connector ports with limited PCB space. Two right angle D-sub connectors are stacked one on top of another, creating a single dual-port connector with a very condensed footprint.
Features of Stacked D-Sub I/O Connectors
Available in four industry standard sizes:
Standard density: 9, 15, 25, 37
Available in three connector spacing options: 0.625", 0.750", 0.900"
Available in six hardware configurations
High-temperature UL94 V-0 thermoplastic (260°C process temp)
High performance stamped contacts
Applications of Stacked D-Sub I/O Connectors
Communications
Instrumentation
Medical
Computers/peripherals
Commercial industry
Test labs
Gaming industry
Range of of Stacked D-Sub I/O Connectors
Male Stacked D sub Connector
Female Stacked D sub ConnectorStandard Density Stacked D sub Connector
High Density Stacked D sub Connector
Dual-Port Stacked D-Sub Connectors
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