ULNIDN DC-DC Converter NN1-XXXXXB3N Series ♦ Fixed input voltage, isolated& unregulated output, output power 1W ♦ High efficiency up to 78% ♦ Small compact SIP packing ♦ No external component required ♦ Isolation Voltage 3000VDC ♦ Operating Temperature:-40°C~+85°C ♦ Plastic Case, meet UL94-V0 standard Test Condition: Unless otherwise specified, data in the datasheet should be tested under the conditions of inputting nominal voltage, pure resistance rated load and Ta=25C. Product Named Method Input Specifications Item Input Filter Capacitor Filter Output Specifications Item Note: ©Ripple & Noise tested by twisted-pair method, ©There is a small portion can only be guaranteed to be within 5 second.

Switching Frequency Operating Temperature Refer to Temperature Derating Curve Storage Temperature Case temperature rise when working Within Temperature Derating Curve Storage Humidity Case Material Black flame-retardant heat-resistant Plastic(UL94-V0) Product Weight Isolation Voltage Test 1 minute, leakage current<0.5mA Isolation Capacitor Typical Product List Model Input Voltage Range (VDC) Output Voltage/Current (Vo/Io) Input Current(mA) Nominal Voltage Ripple & Noise (Max.) Single Output:

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Packing Dimension, Pin Function, Recommended PCB layout 19.50 10.768] Front view Front view Unit:mm[inch] General tolerance: x.x+0.5mm[x.x+0.020inch] 0. x ± 0.2n5n[0. x ± 0.0080 ch] Printed board vertical view Lattic spacing:2.54mm(0.1inch) Note: if the definition of pin is not in accordance with the model selection manual, please refer to the label on actual item. Packing Dimension Packing Code Design and Application Circuit Recommended 1.Output Load Request a. In order to ensure the converter can work reliably with high efficiency, the minimum load should not less than 10% rated load when it i...

2.Recommended Circuit In order to ensure the input/output ripple and noise decreased, capacitor filter net could be connected to input and output side, application circuit as below photo 1; choosing suitable filter capacitor is very important, start-up problems may be caused by too large capacitance. To ensure the modules running safely and reliably, the recommended capacitive load values as shown in Table 1. (But for the actual output power of application circuit is less than 0.5W, suggest not to connect external capacitor) Photo 1 Recommended capacitive load value(Table 1) 3. Ripple& Noise...