Texas Instruments UC3877DWPTR
- Part Number:
- UC3877DWPTR
- Manufacturer:
- Texas Instruments
- Ventron No:
- 3248534-UC3877DWPTR
- Description:
- IC REG CTRLR PWM CM/VM 28-SOIC
- Datasheet:
- UC1875-78, 2875-78, 3875-78
Texas Instruments UC3877DWPTR technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments UC3877DWPTR.
- Mounting TypeSurface Mount
- Package / Case28-SOIC (0.295, 7.50mm Width)
- Surface MountYES
- Number of Pins28
- Operating Temperature0°C~70°C TA
- PackagingTape & Reel (TR)
- Part StatusObsolete
- Moisture Sensitivity Level (MSL)2 (1 Year)
- Number of Terminations28
- ECCN CodeEAR99
- Additional FeatureCAN ALSO BE CONFIGURED IN CURRENT MODE
- SubcategorySwitching Regulator or Controllers
- TechnologyBIPOLAR
- Terminal PositionDUAL
- Terminal FormGULL WING
- Peak Reflow Temperature (Cel)NOT SPECIFIED
- Number of Functions1
- Terminal Pitch1.27mm
- Reach Compliance Codeunknown
- Frequency1MHz
- Reflow Temperature-Max (s)NOT SPECIFIED
- Base Part NumberUC3877
- Pin Count28
- Number of Outputs4
- Qualification StatusNot Qualified
- Output Voltage1.7V
- Input Voltage-Nom12V
- Analog IC - Other TypeSWITCHING CONTROLLER
- Output Current500mA
- Voltage - Supply (Vcc/Vdd)9.5V~20V
- Control FeaturesFrequency Control, Soft Start, Sync
- TopologyFull-Bridge
- Control ModeVOLTAGE-MODE
- Control TechniqueRESONANT CONTROL
- Nominal Input Voltage20V
- Switcher ConfigurationPHASE-SHIFT
- Fault ProtectionCurrent Limiting
- Duty Cycle100%
- Output IsolationNon-Isolated
- Voltage - Start Up10.75V
- Height Seated (Max)2.65mm
- Length17.9mm
- Width7.5mm
- RoHS StatusROHS3 Compliant
UC3877DWPTR Overview
The operating temperature for this particular electronic component is between 0°C and 70°C, making it suitable for use in a wide range of environments. However, its part status is listed as obsolete, indicating that it may no longer be readily available for purchase. The moisture sensitivity level (MSL) is 2, meaning that it can withstand moderate levels of moisture for up to 1 year. With a frequency of 1MHz, this component is capable of handling high-speed operations. It is currently not qualified for use, but it does have fault protection in the form of current limiting. The duty cycle is 100%, ensuring consistent performance. The voltage supply range is between 9.5V and 20V, and the start-up voltage is 10.75V. Lastly, the component has a length of 17.9mm, making it compact and suitable for use in smaller devices.
UC3877DWPTR Features
Packaged with 28-SOIC (0.295, 7.50mm Width)
With 28 pins
Output Current at 500mA
UC3877DWPTR Applications
There are a lot of Texas Instruments UC3877DWPTR AC DC Converters applications.
Set-top boxes
Small off-line low voltage power supplies
MPS parts
LED Driver
Set Top Boxes (STB)
Open Frame Switching Power Supply
Consumer electronics
Vacuum Cleaner
Appliance Power Supplies
Adapter/Charger for Cordless Phones
The operating temperature for this particular electronic component is between 0°C and 70°C, making it suitable for use in a wide range of environments. However, its part status is listed as obsolete, indicating that it may no longer be readily available for purchase. The moisture sensitivity level (MSL) is 2, meaning that it can withstand moderate levels of moisture for up to 1 year. With a frequency of 1MHz, this component is capable of handling high-speed operations. It is currently not qualified for use, but it does have fault protection in the form of current limiting. The duty cycle is 100%, ensuring consistent performance. The voltage supply range is between 9.5V and 20V, and the start-up voltage is 10.75V. Lastly, the component has a length of 17.9mm, making it compact and suitable for use in smaller devices.
UC3877DWPTR Features
Packaged with 28-SOIC (0.295, 7.50mm Width)
With 28 pins
Output Current at 500mA
UC3877DWPTR Applications
There are a lot of Texas Instruments UC3877DWPTR AC DC Converters applications.
Set-top boxes
Small off-line low voltage power supplies
MPS parts
LED Driver
Set Top Boxes (STB)
Open Frame Switching Power Supply
Consumer electronics
Vacuum Cleaner
Appliance Power Supplies
Adapter/Charger for Cordless Phones
UC3877DWPTR More Descriptions
Current Limiting Tape & Reel (TR) R-PDSO-G28 VOLTAGE-MODE dc ac converter 20V 17.9mm 1MHz 3A
Pulse Width Modulation (PWM) Controller IC; Output Current:500mA; Frequency:1000kHz; Supply Voltage Range:11V to 20V; Digital IC Case Style:SOIC; No. of Pins:28; Operating Temperature Range:0°C to 70°C
The UC1875 family of integrated circuits implements control of a bridge power stage by phase-shifting the switching of one half-bridge with respect to the other, allowing constant frequency pulse-width modulation in combination with resonant, zero-voltage switching for high efficiency performance at high frequencies. This family of circuits may be configured to provide control in either voltage or current mode operation, with a separate over-current shutdown for fast fault protection. A programmable time delay is provided to insert a dead-time at the turn-on of each output stage. This delay, providing time to allow the resonant switching action, is independently controllable for each output pair (A-B, C-D). With the oscillator capable of operation at frequencies in excess of 2MHz, overall switching frequencies to 1MHz are practical. In addition to the standard free running mode, with the CLOCKSYNC pin, the user may configure these devices to accept an external clock synchronization signal, or may lock together up to 5 units with the operational frequency determined by the fastest device. Protective features include an undervoltage lockout which maintains all outputs in an active-low state until the supply reaches a 10.75V threshold. 1.5V hysteresis is built in for reliable, boot-strapped chip supply. Over-current protection is provided, and will latch the outputs in the OFF state within 70nsec of a fault. The current-fault circuitry implements full-cycle restart operation. Additional features include an error amplifier with band-width in excess of 7MHz, a 5V reference, provisions for soft-starting, and flexible ramp generation and slope compensation circuitry. These devices are available in 20-pin DIP, 28-pin "bat-wing" SOIC and 28 lead power PLCC plastic packages for operation over both 0C to 70C and 25C to 85C temperature ranges; and in hermetically sealed cerdip, and surface mount packages for 55C to 125C operation.
Pulse Width Modulation (PWM) Controller IC; Output Current:500mA; Frequency:1000kHz; Supply Voltage Range:11V to 20V; Digital IC Case Style:SOIC; No. of Pins:28; Operating Temperature Range:0°C to 70°C
The UC1875 family of integrated circuits implements control of a bridge power stage by phase-shifting the switching of one half-bridge with respect to the other, allowing constant frequency pulse-width modulation in combination with resonant, zero-voltage switching for high efficiency performance at high frequencies. This family of circuits may be configured to provide control in either voltage or current mode operation, with a separate over-current shutdown for fast fault protection. A programmable time delay is provided to insert a dead-time at the turn-on of each output stage. This delay, providing time to allow the resonant switching action, is independently controllable for each output pair (A-B, C-D). With the oscillator capable of operation at frequencies in excess of 2MHz, overall switching frequencies to 1MHz are practical. In addition to the standard free running mode, with the CLOCKSYNC pin, the user may configure these devices to accept an external clock synchronization signal, or may lock together up to 5 units with the operational frequency determined by the fastest device. Protective features include an undervoltage lockout which maintains all outputs in an active-low state until the supply reaches a 10.75V threshold. 1.5V hysteresis is built in for reliable, boot-strapped chip supply. Over-current protection is provided, and will latch the outputs in the OFF state within 70nsec of a fault. The current-fault circuitry implements full-cycle restart operation. Additional features include an error amplifier with band-width in excess of 7MHz, a 5V reference, provisions for soft-starting, and flexible ramp generation and slope compensation circuitry. These devices are available in 20-pin DIP, 28-pin "bat-wing" SOIC and 28 lead power PLCC plastic packages for operation over both 0C to 70C and 25C to 85C temperature ranges; and in hermetically sealed cerdip, and surface mount packages for 55C to 125C operation.
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