1W isolated DC-DC converter Fixed input voltage, unregulated single output
Description
A03_S-1WR3 & B03_LS-1WR3 series are specially designed for applications where an isolated(two 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 10mA
Operating ambient temperature range: -40℃ to +105℃
High efficiency up to 85%
I/O isolation test voltage: 1.5k VDC
Industry standard pin-out
SIP package
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. | ||||
|
-- |
A0303S-1WR3 |
3.3 (2.97-3.63) |
±3.3 | ±152/±15 | 74/78 | 1200 |
| A0305S-1WR3 | ±5 | ±100/±10 | 78/82 | 1200 | ||
| A0309S-1WR3 | ±9 | ±56/±6 | 81/85 | 470 | ||
| A0312S-1WR3 | ±12 | ±42/±5 | 78/82 | 220 | ||
| A0315S-1WR3 | ±15 | ±34/±4 | 78/82 | 220 | ||
| A0324S-1WR3 | ±24 | ±21/±2 | 80/84 | 100 | ||
| B0303LS-1WR3 | 3.3 | 303/30 | 75/79 | 2400 | ||
| B0305LS-1WR3 | 5 | 200/20 | 78/82 | 2400 | ||
| B0309LS-1WR3 | 9 | 111/11 | 81/85 | 1000 | ||
| B0312LS-1WR3 | 12 | 83/8 | 78/82 | 560 | ||
| B0315LS-1WR3 | 15 | 67/7 | 78/82 | 560 | ||
| B0324LS-1WR3 | 24 | 42/4 | 80/84 | 220 | ||
| Note: *The specified maximum capacitive load for positive and negative output is identical. | ||||||
| Input Specifications | ||||||
| Item | Operating Conditions | Min. | Typ. | Max. | Unit | |
|
Input Current (full load / no-load) |
3.3VDC input | 3.3VDC output | -- | 384/10 | 405/-- |
mA |
| Others output | -- | 370/18 | 389/-- | |||
| Reflected Ripple Current* | -- | 15 | -- | |||
| Surge Voltage (1sec. max.) | 3.3 VDC input | -0.7 | -- | 5 | VDC | |
| Input Filter | Capacitance filter | |||||
| Hot Plug | Unavailable | |||||
|
Note: * Refer to DC-DC Converter Application Notes for detailed description of reflected ripple current test method. |
||||||
| Output Specifications | ||||||
| Item | Operating Conditions | Min. | Typ. | Max. | Unit | |
| Voltage Accuracy | See output regulation curve(Fig. 1) | |||||
| Linear Regulation | Input voltage change: ±1% | 3.3 VDC output | -- | -- | ±1.5 | -- |
| Other output | -- | -- | ±1.2 | |||
| Load Regulation | 10%-100% load | 3.3VDC output | -- | 12 | 18 | % |
| Others output | -- | 8 | 15 | |||
|
Ripple & Noise* |
20MHz bandwidth |
3.3VDC/5VDC/9VDC/ 12VDC/15VDC output |
-- | 30 | 75 |
mVp-p |
| 24VDC output | -- | 50 | 100 | |||
| Temperature Coefficient | 100% load | -- | ±0.02 | -- | %/℃ | |
| Short-circuit Protection | Continuous, self-recovery | |||||
| Note:* The “parallel cable” method is used for Ripple and Noise test, please refer to DC-DC Converter Application Notes for specific information. | ||||||
| Mechanical Specifications | |
| Case Material | Black plastic; flame-retardant and heat-resistant (UL94 V-0) |
| Dimensions | 19.65 x 6.00 x 10.16mm |
| Weight | 2.1g(Typ.) |
| Cooling methods | Free air convection |
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