KHC Power Technology Co.,Ltd
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1W isolated DC-DC converter Fixed input voltage, unregulated single output
Description
B_LM-1WR3 series are specially designed for applications where an isolated voltage is required in a distributed power supply system.They are suitable for:pure digital circuits,low frequency analog circuits,relay-driven circuits and data switching circuits.
FEATURES
Continuous short-circuit protection
No-load input current as low as 8mA
Operating ambient temperature range: -40℃ to +105℃
High efficiency up to 80%
I/O isolation test voltage: 1.5k VDC
Industry standard pin-out
Specifications
| Selection Guide | ||||||
Certification |
Part No. | Input Voltage (VDC) | Output | Full Load Efficiency (%) Min./Typ. | Capacitive Load (µF) Max. | |
| Nominal (Range) | Voltage (VDC) | Current (mA) Max./Min. | ||||
| -- | B1205LM-1WR3 | 12 (10.8-13.2) | 5 | 200/20 | 76/80 | 2400 |
| Input Specifications | |||||
| Item | Operating Conditions | Min. | Typ. | Max. | Unit |
Input Current (full load / no-load) | 12VDC input | -- | 105/8 | 110/-- |
mA |
| Reflected Ripple Current* | -- | 15 | -- | ||
| Surge Voltage(1sec. max.) | -0.7 | -- | 18 | VDC | |
| Input Filter | Capacitance filter | ||||
| Hot Plug | Unavailable | ||||
| Note: * Reflected ripple current testing method please see DC-DC Converter Application Notes for specific operation. | |||||
| Output Specifications | |||||
| Item | Operating Conditions | Min. | Typ. | Max. | Unit |
| Voltage Accuracy | See output regulation curves (Fig. 1) | ||||
| Linear Regulation | Input voltage change: ±1% | -- | -- | ±1.2 | -- |
| Load Regulation | 10%-100% load | -- | 7 | 15 | % |
| Ripple & Noise* | 20MHz bandwidth | -- | 50 | 100 | mVp-p |
| Temperature Coefficient | Full load | -- | ±0.02 | -- | %/℃ |
| Short Circuit Protection | Continuous, self-recovery | ||||
| Notes: * The “parallel cable” method is used for ripple and noise test, please refer to DC-DC Converter Application Notes for specific information. | |||||
| General Specifications | |||||
| Item | Operating Conditions | Min. | Typ. | Max. | Unit |
| Isolation | Input-output electric strength test for 1 minute with a leakage current of 1mA max. | 1500 | -- | -- | VDC |
| Insulation Resistance | Input-output resistance at 500VDC | 1000 | -- | -- | MΩ |
| Isolation Capacitance | Input-output capacitance at 100kHz/0.1V | -- | 20 | -- | pF |
| Operating Temperature | Derating when operating temperature≥85℃ (see Fig. 2) | -40 | -- | 105 | ℃ |
| Storage Temperature | -55 | -- | 125 |
℃ | |
| Case Temperature Rise | Ta=25℃ | -- | 25 | -- | |
| Pin Soldering Resistance | Soldering spot is 1.5mm away from case for 10 | -- | -- | 300 | |
| Mechanical Specifications | |
| Case Material | Black plastic; flame-retardant and heat-resistant (UL94 V-0) |
| Dimensions | 16.50 x 6.00 x 7.50 mm |
| Weight | 1.3g(Typ.) |
| Cooling Method | Free air convection |
