B_LS-1WR3&A_S-1WR3 series are small size, high-efficiency micro power, constant voltage input, isolated and unregulated single/dual output, DC/DC module power supply provided by Hi-link. This series of products is specially designed for applications in on-board power systems that need to generate a set of voltages that are isolated from the input power supply. This product is suitable for

• The voltage of the input power supply is relatively stable (voltage variation range ±10%Vin);

• Isolation is required between input and output (isolation voltage≤1500VDC);

• The requirements for output voltage stability are not high;

• Typical applications: pure digital circuits, general low-frequency analog circuits, relay drive circuits, data exchange circuits, etc.

Typical performance

Constant voltage input, isolated unregulated output, power 1W

Isolation voltage: 1500VDC

Low no-load power consumption: 0.025W (Typ.)

Efficiency: up to 90%

Working environment temperature: -40℃～+85℃

Failure-free time MTBF≥3.5 million hours (3500000Hrs)

Output short circuit protection: continuous short circuit protection, automatic recovery

Small SIP package, plastic housing

International standard pin mode

Ripple/Noise (20MHz bandwidth): 30mVp-p(Typ.)

Input Characteristics

Items

Working conditions

Min.

Typ.

Max.

Unit

Input current

(fully loaded/

unloaded)

3.3VDCInput

—

378/6

—/12

mA

5VDCInput

—

224/5

—/10

12VDCInput

—

93/3

—/5

15VDCInput

—

74/2

—/4

24VDCInput

—

47/1

—/2

Reflected Ripple Current

—

15

—

mA

Impulse voltage (Isec.max)

3.3VDCInput

–0.7

—

5

VDC

5VDCInput

–0.7

—

9

12VDCInput

–0.7

—

18

15VDCInput

–0.7

—

21

24VDCInput

–0.7

—

30

Input filter type

Capacitive filtering

Hot plug

Not available

Output Characteristics

Items

Working and test conditions

Min.

Typ.

Max.

Unit

Output load

Load percentage

10

—

100

%

Output Voltage Accuracy

Refer to Error Envelope Curve

—

—

±15.0

%

Linear adjustment rate

Input voltage variation ±1%

3.3VOutput

—

—

±1.5

%

Others

—

—

±1.2

%

Load Regulation

10%~100%

Load

3.3VDCOutput

—

18

—

%

5VDCOutput

—

12

—

%

9VDCOutput

—

8

—

%

12VDCOutput

—

7

—

%

15VDCOutput

—

6

—

%

24VDCOutput

—

5

—

%

Ripple & Noise

Pure resistive load, 20MHz bandwidth, peak-to-peak

—

30

80

mVp-p

Temperature Drift Coefficient

Full load

—

—

±0.03

%/°C

Output short circuit protection

Continuous short circuit protection, automatic recovery

Note: ①The test method of ripple and noise is twisted pair test method.

General Characteristics

Items

Working conditions

Min.

Typ.

Max.

Unit

Insulation voltage

Input-output, test time is 1 minute, leakage current is less than 1mA

1500

—

—

VDC

Insulation resistance

Input-output, insulation voltage 500VDC

1000

—

—

MΩ

Isolation capacitor

Input-output, 100KHz/0.1V

—

20

—

pF

Operating temperature

Refer to Temperature Derating Curve

-40

—

+85

℃

Storage temperature

-40

—

+125

Shell temperature rise during operation

—

25

—

Storage humidity

No condensation

5

—

95

%RH

Pin soldering temperature

The solder joint is 1.5mm away from the shell, 10 seconds

—

—

+300

℃

On-off level

Full load, nominal voltage input

—

100

—

KHz

Shock

10-55Hz,10G,30Min.alongX,YandZ

Shell material

Black flame retardant heat resistant plastic (UL94V-0)

Minimum time between failures

MIL-HDBK-217F@25℃

3.5X106

—

—

Hrs

Product characteristic curve

Product appearance size and pin definition, recommended printing layout

Note: If the definition of each pin of the power module is inconsistent with the selection manual, the label on the physical label shall prevail.