
Allicdata Part #: | 296-11427-5-ND |
Manufacturer Part#: |
UCC35701PW |
Price: | $ 0.00 |
Product Category: | Integrated Circuits (ICs) |
Manufacturer: | Texas Instruments |
Short Description: | IC REG CTRLR PWM VM 14-TSSOP |
More Detail: | Converter Offline Boost, Buck, Flyback, Forward To... |
DataSheet: | ![]() |
Quantity: | 218 |
Duty Cycle: | 99% |
Base Part Number: | UCC35701 |
Mounting Type: | Surface Mount |
Supplier Device Package: | 14-TSSOP |
Package / Case: | 14-TSSOP (0.173", 4.40mm Width) |
Operating Temperature: | -55°C ~ 150°C (TJ) |
Control Features: | Soft Start, Sync |
Fault Protection: | Current Limiting |
Frequency - Switching: | 700kHz |
Series: | -- |
Voltage - Supply (Vcc/Vdd): | 9 V ~ 15 V |
Voltage - Start Up: | 13V |
Topology: | Boost, Buck, Flyback, Forward |
Voltage - Breakdown: | -- |
Internal Switch(s): | No |
Output Isolation: | Isolated |
Part Status: | Active |
Packaging: | Tube |
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UCC35701PW is a high voltage high efficiency synchronous buck controller designed for off-line converters and switch-mode power supplies (SMPS) operating from DC power grids. The device can be used to control the output voltage from a wide range of input voltages, up to 2.5V nominal, and provides up to 95% efficiency. It is designed with a PLC like logic and can be used for voltage mode (VM) and current mode (CM) control topologies. The UCC35701PW is capable of providing up to 500mA of output current and has a very low standby power consumption of less than 0.1W.
The UCC35701PW is well suited for both low power offline applications and higher power SMPS applications. It can be used in a variety of AC-to-DC and DC-to-DC applications. In an AC-to-DC application, the controller can be used to generate a regulated DC output from an AC input. The controller can be used with a wide range of transformers to generate a precise output voltage for the desired load application. In a DC-to-DC application, the controller can be used to generate a regulated DC output from a DC input. This application is ideal for generating a precise output voltage for computers, servers, and mobile devices.
The UCC35701PW is an integral part of the PMIC-AC/DC converters, Offline Switchers category. It is a controller rather than an actual power device, typically used in switching regulator applications. It provides the necessary control signals to the power MOSFETs in order to regulate the output voltage, current and other parameters. It runs at a higher frequency than traditional linear regulators and is more efficient as well. It does require additional components such as gate drivers, MOSFETs, inductors and capacitors for the regulator to work properly.
The UCC35701PW controller utilizes a PWM technique with feedback control loops to provide precise voltage regulation and electrical noise reduction. The device has a high speed error amplifier which senses the output voltage for feedback to the loop. This allows for precise voltage regulation under all load conditions. The output stage comprises of two power MOSFETs, with the top transistor acting as the switch and the lower transistor acting as the diode. This allows the controller to efficiently regulate the output voltage while dissipating minimal energy.
The UCC35701PW is capable of both voltage and current mode control, depending on how it is implemented. The voltage mode control utilizes the voltage across the output capacitor as the feedback signal to the control loop. This method is relatively low cost and provides good output voltage regulation. The current mode control method senses the output current as the feedback signal to the control loop. This method is more complex, but provides better output current regulation, which is ideal for applications that requirefast transient response.
In summary, the UCC35701PW is a high voltage, high efficiency synchronous buck controller designed for off-line converters and SMPS applications. It is well suited for both low power offline applications and higher power SMPS applications. It can be used for both voltage and current mode control, depending on the application. The device provides precise voltage regulation under all load conditions and is capable of up to 500mA output current. It is an integral part of the PMIC-AC/DC converters, Offline Switchers category.
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