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Texas Instruments 8-Pin PDIP 5-Channel Current Mode PWM Controller 500 kHz 125V Through Hole UC3845AN
Specifications
| Country of Origin | India |
|---|---|
| Brand | Texas Instruments |
| Height | 4.57mm |
| Length | 9.81mm |
| Model | UC3845AN |
| Width | 6.35mm |
| Mount Type | Through Hole |
| Maximum Duty Cycle | 50% |
| Series | UC |
| Output Current | 1A |
| Maximum Operating Temperature | 70°C |
| Package Type | PDIP |
| Minimum Operating Temperature | 0°C |
| Number of outputs | 5 |
| Output Voltage | 5.2V |
| Maximum Switching Frequency | 500kHz |
| Pin Count | 8 |
| Maximum Supply Voltage | 125V |
| Minimum Supply Voltage | -55V |
| Supply Current | 4mA |
| PWM Controller Type | Current Mode |
Key Features
- Maximum switching frequency supports efficient power management at 500 kHz.
- Supply current is low at 4 mA for energy efficiency.
- Output voltage rated at 5.2 V with a maximum output current of 1 A.
- Package features an 8-pin PDIP designed for Through Hole mounting.
- Operating temperature ranges from 0°C to 70°C for stable industrial use.
- Includes 5 output channels supporting diverse control applications.
- Maximum duty cycle capped at 50% for controlled switching behavior.
- Compatible with flyback converters utilizing primary-side regulation.
Product Description
Texas Instruments UC3845AN is an 8-pin PDIP 5-channel PWM controller designed for efficient power management in switching power supply applications operating up to 500 kHz. Its current-mode control architecture ensures precise regulation of output voltage and current under varying load conditions. The device is tailored for Through Hole mounting and supports a maximum supply voltage of 125 V.
This PWM controller features low supply current consumption of 4 mA and an output voltage of 5.2 V with the capability to provide up to 1 A output current, making it suitable for industrial and commercial electronic control systems requiring compact and reliable power management solutions.
The product operates reliably within an ambient temperature range of 0°C to 70°C, compliant with typical industrial specifications. The maximum duty cycle is limited to 50% to maintain stability and reduce stress on the power components. The 8-pin PDIP package dimensions (9.81 mm length, 6.35 mm width, and 4.57 mm height) facilitate easy integration into standard PCB layouts.
Texas Instruments UC3845AN is commonly employed in flyback converter circuits and current-mode PWM control applications, providing primary-side regulation to eliminate the need for optocouplers. This enhances the transient response to load changes and improves power efficiency.
Maximum switching frequency supports efficient power management at 500 kHz. Supply current is low at 4 mA for energy efficiency. Output voltage rated at 5.2 V with a maximum output current of 1 A. Package features an 8-pin PDIP designed for Through Hole mounting.
Operating temperature ranges from 0°C to 70°C for stable industrial use. Includes 5 output channels supporting diverse control applications. Maximum duty cycle capped at 50% for controlled switching behavior. Compatible with flyback converters utilizing primary-side regulation.
Compact dimensions for easy PCB integration.
This PWM controller is well-suited for industrial power supply design, power management in commercial electronics, and laboratory power systems. Its robust design ensures reliability in manufacturing, HVAC controls, instrumentation, and embedded systems.
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Frequently Asked Questions
The maximum switching frequency of the UC3845AN is 500 kHz, which supports efficient power management.
This model has an output voltage rated at 5.2 V and can provide a maximum output current of 1 A.
The supply current consumption of the UC3845AN is low at 4 mA, enhancing energy efficiency.
The dimensions of the 8-pin PDIP package are 9.81 mm in length, 6.35 mm in width, and 4.57 mm in height.
The operating temperature range for the UC3845AN is from 0°C to 70°C, suitable for stable industrial use.
This model includes 5 output channels, supporting diverse control applications.
The maximum duty cycle is capped at 50%, which helps maintain stability and reduce stress on power components.
Yes, it is compatible with flyback converters utilizing primary-side regulation, enhancing transient response to load changes.
The maximum supply voltage for the UC3845AN is 125 V.
This PWM controller is designed for Through Hole mounting.
The UC3845AN utilizes current-mode control architecture for precise regulation of output voltage and current.
This PWM controller is suitable for industrial power supply design, commercial electronics, and laboratory power systems.
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