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Hello, Please ask a question about LT105 Datasheet
# Example questions:
➢ What are the two logic levels for the remote on/off control feature to enable the power supply?
➢ What is the minimum load required for dual and triple output models to achieve rated performance?
➢ What is the recommended method for determining the correct fuse size, as described in the document?
| Part No. | LT105 |
| Manufacturer | ETC |
| Size | 99 Kbytes |
| Pages | 2 pages |
| Description | LT Series: 25/30 WATT Wide Input Range |
1. General Information & Features:
️· Type: Switching Power Supply (likely a DC-DC converter)
️· Dimensions: 2.56 x 3.0 x 0.83 inches (65 x 76.2 x 21.1 mm)
️· Case Material: Black coated copper with non-conductive base.
️· EM/RFI Shielding: Six-sided continuous shield.
️· Operating Temperature Range: -25°C to +71°C
️· Storage Temperature Range: -55°C to +105°C
2. Input/Output Specifications:
️· Input Voltage: Not explicitly stated, but implied to be a DC voltage. (Likely 12V, 24V, or 48V - common input voltages for these types of power supplies; see notes at end).
️· Output Voltage(s): Available in Single, Dual, and Triple output configurations. Specific voltages not directly listed, but external trimming allows adjustment within ±10%.
️· Output Current: Not listed.
️· Minimum Load: 10% minimum load required on Dual and Triple output models.
️· Isolation Voltage: 500 VDC minimum.
️· Isolation Resistance: 10<sup>9</sup> ohms minimum.
️· Switching Frequency: 100 kHz
3. Remote On/Off Control:
️· Logic Compatibility: CMOS or Open Collector TTL.
️· Ec-ON (Enable): >+5.5 VDC or Open Circuit
️· Ec-OFF (Disable): <0.8 VDC
️· Shutdown Idle Current: 10 mA
️· Input Resistance: 100KΩ (referenced to input minus)
4. External Output Trimming:
️· Output may be externally trimmed (adjusted) by ±10% using a fixed resistor or an external trimpot.
5. Efficiency:
️· Not directly listed.
6. Pin Connections (Refer to diagrams in the data sheet):
️· Pin 1: +Input
️· Pin 2: -Input
️· Pin 3: (Single Output) Output Trim / (Dual/Triple) +Output / +5V Output
️· Pin 4: (Single) Output Trim / (Dual/Triple) Common
️· Pin 5: (Single) No Pin / (Dual/Triple) -Output
️· Pin 6: (Single) +Output / (Dual/Triple) No Pin
️· Pin 7: (Single) -Output / (Dual/Triple) No Pin
️· Pin 8: Remote On/Off Control
NOTES:
️· Missing Input Voltage: The data sheet doesn't state the nominal input voltage. It's crucial to determine the correct input voltage for the application. Common values for this type of power supply would be 12V, 24V, or 48V.
️· Output Voltage Values: The data sheet does not explicitly list the output voltage values.
️· Efficiency: Efficiency is not mentioned, and would need to be determined for specific operating conditions.
1. General Information & Features:
️· Type: Switching Power Supply (likely a DC-DC converter)
️· Dimensions: 2.56 x 3.0 x 0.83 inches (65 x 76.2 x 21.1 mm)
️· Case Material: Black coated copper with non-conductive base.
️· EM/RFI Shielding: Six-sided continuous shield.
️· Operating Temperature Range: -25°C to +71°C
️· Storage Temperature Range: -55°C to +105°C
2. Input/Output Specifications:
️· Input Voltage: Not explicitly stated, but implied to be a DC voltage. (Likely 12V, 24V, or 48V - common input voltages for these types of power supplies; see notes at end).
️· Output Voltage(s): Available in Single, Dual, and Triple output configurations. Specific voltages not directly listed, but external trimming allows adjustment within ±10%.
️· Output Current: Not listed.
️· Minimum Load: 10% minimum load required on Dual and Triple output models.
️· Isolation Voltage: 500 VDC minimum.
️· Isolation Resistance: 10<sup>9</sup> ohms minimum.
️· Switching Frequency: 100 kHz
3. Remote On/Off Control:
️· Logic Compatibility: CMOS or Open Collector TTL.
️· Ec-ON (Enable): >+5.5 VDC or Open Circuit
️· Ec-OFF (Disable): <0.8 VDC
️· Shutdown Idle Current: 10 mA
️· Input Resistance: 100KΩ (referenced to input minus)
4. External Output Trimming:
️· Output may be externally trimmed (adjusted) by ±10% using a fixed resistor or an external trimpot.
5. Efficiency:
️· Not directly listed.
6. Pin Connections (Refer to diagrams in the data sheet):
️· Pin 1: +Input
️· Pin 2: -Input
️· Pin 3: (Single Output) Output Trim / (Dual/Triple) +Output / +5V Output
️· Pin 4: (Single) Output Trim / (Dual/Triple) Common
️· Pin 5: (Single) No Pin / (Dual/Triple) -Output
️· Pin 6: (Single) +Output / (Dual/Triple) No Pin
️· Pin 7: (Single) -Output / (Dual/Triple) No Pin
️· Pin 8: Remote On/Off Control
NOTES:
️· Missing Input Voltage: The data sheet doesn't state the nominal input voltage. It's crucial to determine the correct input voltage for the application. Common values for this type of power supply would be 12V, 24V, or 48V.
️· Output Voltage Values: The data sheet does not explicitly list the output voltage values.
️· Efficiency: Efficiency is not mentioned, and would need to be determined for specific operating conditions.
| Part No. | LT105 |
| Manufacturer | ETC |
| Size | 99 Kbytes |
| Pages | 2 pages |
| Description | LT Series: 25/30 WATT Wide Input Range |
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