product features

PRODUCT FEATURES

Ultra-thin international standard size and lead package

Wide range input voltage: 18~36VDC

Ultra-low standby power consumption 0.036W (typical value)

Input and output isolation withstand voltage 1500VDC

Ultra-fast start: 1ms (typical value)

High efficiency, conversion efficiency up to 91% (Typ)

Operating temperature range: -40°C~+85°C

Good output short circuit and over current protection and self-recovery

High reliability, long life design, continuous work>100000H

It is potted with high-quality environmentally friendly waterproof and thermal conductive glue, moisture-proof and vibration-proof, and meets the waterproof and dust-proof IP65 standard

Meet UL/CE/EMC and safety testing requirements

Can be used in medical, industrial control, electric power, instrumentation, communication, railway and other fields

Working environment temperature and load characteristics

WORKING ENVIRONMENT tempeRature & LOAD CHARACTERISTICS

Typical application circuit

APPLICATION CIRCUIT

Recommended test circuit

Generally recommended capacitance: C1: 47-100μF/50V; C2, C3: 10-22μF.
All DC/DC converters of this series are tested according to the recommended test circuit shown in the figure below before leaving the factory.
If it is required to further reduce the input and output ripple, the input and output external capacitors C1, C2, C3 can be increased or selected in series with capacitors with a small equivalent impedance, but the capacitance cannot be greater than the maximum capacitive load of the product.

EMC solution-recommended circuit

Recommended parameters:

FUSE: Connect the corresponding fuse according to customer needs

MOV varistor: 14D333K

LDM1/common mode inductance: 2mH

E1, E2 electrolytic capacitors: 470μF/50V

C0, C1 ceramic capacitors: 1μF/50V

LDM2 differential mode inductor: 4.7-68μH

CY1 safety Y2 capacitor: 1nF/250Vac

Output filter peripheral recommended circuit

Note:
1. C2 and C3 use high-frequency and low-resistance electrolytic capacitors, and the total capacity cannot exceed the maximum capacitive load marked in the manual, otherwise the module will not start normally.
2. For capacitive load, a minimum load of 3% must be guaranteed, otherwise it will cause abnormal output of the module.

Recommended parameters:

Use of Trim and calculation of Trim resistance

The Trim output voltage adjustment terminal with Trim terminal system is as follows:

Ripple & noise test: twisted pair method 20MHz bandwidth

testing method:

1. Ripple noise is connected using 12# twisted pair, the oscilloscope bandwidth is set to 20MHz, 100M bandwidth probe, and 0.1uF polypropylene capacitor and 47uF high frequency low resistance electrolytic capacitor are connected in parallel to the probe end, and the oscilloscope sampling uses Sample sampling mode .

2. Connect the power input terminal to the input power source, and connect the power output to the electronic load through the fixture board. Use a 30cm±2cm sampling line to sample directly from the power output port for testing. The power line selects the corresponding wire diameter wire with insulation according to the output current. (As shown in FIG)

Dimensions and weight

DIMENSIONS & WEIGHT

Pin description:

1: -Vin  input negative; 2: +Vin input positive; 3: +Vo  output positive; 4: NC; 5: -Vo output negative; 6: NC

*Note: If the definition of each pin of the power module is not consistent with the selection manual, the label on the physical label shall prevail.