Texas Instruments UC3849QTR
- Part Number:
- UC3849QTR
- Manufacturer:
- Texas Instruments
- Ventron No:
- 3268352-UC3849QTR
- Description:
- IC SECONDARY SIDE CTRLR 28PLCC
- Datasheet:
- UC2849,3849 Series
Texas Instruments UC3849QTR technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments UC3849QTR.
- Mounting TypeSurface Mount
- Package / Case28-LCC (J-Lead)
- Supplier Device Package28-PLCC (11.51x11.51)
- Operating Temperature0°C~70°C TA
- PackagingTape & Reel (TR)
- Part StatusObsolete
- Moisture Sensitivity Level (MSL)3 (168 Hours)
- ApplicationsSecondary-Side Controller
- Voltage - Supply8V~20V
- Current - Supply21mA
- RoHS StatusROHS3 Compliant
UC3849QTR Overview
The Mounting Type for this particular component is Surface Mount, meaning it can be easily attached to a circuit board without the need for any additional hardware. The Package / Case is 28-LCC (J-Lead), which refers to the size and shape of the component. It is designed to operate within a temperature range of 0°C~70°C TA, making it suitable for a variety of environments. The Packaging for this component is Tape & Reel (TR), which ensures safe and efficient transportation and storage. However, it is important to note that the Part Status is Obsolete, meaning it is no longer in production. The Moisture Sensitivity Level (MSL) is 3 (168 Hours), indicating that it can withstand a certain level of moisture exposure for up to 168 hours. This component is commonly used as a Secondary-Side Controller in various applications. It requires a Voltage - Supply of 8V~20V and has a low Current - Supply of only 21mA. Additionally, it is important to mention that this component is RoHS3 Compliant, meaning it is free from hazardous substances and is environmentally friendly.
UC3849QTR Features
28-LCC (J-Lead) package
Mounting type of Surface Mount
UC3849QTR Applications
There are a lot of Rochester Electronics, LLC UC3849QTR Power Supply Control ICs applications.
Report meeting
Screen lift
Monogram lift
Base station power
Server
Electric screen
Conference equipment
Sound system equipment
Isolated dc-dc module
Computer
The Mounting Type for this particular component is Surface Mount, meaning it can be easily attached to a circuit board without the need for any additional hardware. The Package / Case is 28-LCC (J-Lead), which refers to the size and shape of the component. It is designed to operate within a temperature range of 0°C~70°C TA, making it suitable for a variety of environments. The Packaging for this component is Tape & Reel (TR), which ensures safe and efficient transportation and storage. However, it is important to note that the Part Status is Obsolete, meaning it is no longer in production. The Moisture Sensitivity Level (MSL) is 3 (168 Hours), indicating that it can withstand a certain level of moisture exposure for up to 168 hours. This component is commonly used as a Secondary-Side Controller in various applications. It requires a Voltage - Supply of 8V~20V and has a low Current - Supply of only 21mA. Additionally, it is important to mention that this component is RoHS3 Compliant, meaning it is free from hazardous substances and is environmentally friendly.
UC3849QTR Features
28-LCC (J-Lead) package
Mounting type of Surface Mount
UC3849QTR Applications
There are a lot of Rochester Electronics, LLC UC3849QTR Power Supply Control ICs applications.
Report meeting
Screen lift
Monogram lift
Base station power
Server
Electric screen
Conference equipment
Sound system equipment
Isolated dc-dc module
Computer
UC3849QTR More Descriptions
Current Mode PWM Controller Average Secondary Side 1MHz 20V 0.3A 28-Pin PLCC T/R
Pulse Width Modulation (PWM) Controller IC; Frequency:1000kHz; No. of Pins:28; Operating Temperature Range:0°C to 70°C; Leaded Process Compatible:No; Number of PWM Outputs:1; Output Current:250mA; Package/Case:28-PLCC ;RoHS Compliant: No
The UC3849 family of average current-mode controllers accurately accomplishes secondary side average current mode control. The secondary-side output voltage is regulated by sensing the output voltage and differentially sensing the ac switching current. The sensed output voltage drives a voltage error amplifier. The ac switching current, monitored by a current sense resistor, drives a high bandwidth, low offset current sense amplifier. The outputs of the voltage error amplifier and current sense amplifier differentially drive a high bandwidth, integrating current error amplifier. The sawtooth waveform at the current error amplifier output is the amplified and inverted inductor current sensed through the resistor. This inductor current down-slope compared to the PWM ramp achieves slope compensation, which gives an accurate and inherent fast transient response to changes in load.The UC3849 features load share, oscillator synchronization, undervoltage lockout, and programmable output control. Multiple chip operation can be achieved by connecting up to ten UC3849 chips in parallel. The SHARE bus and CLKSYN bus provide load sharing and synchronization to the fastest oscillator respectively. The UC3849 is an ideal controller to achieve high power, secondary side average current mode control.
Pulse Width Modulation (PWM) Controller IC; Frequency:1000kHz; No. of Pins:28; Operating Temperature Range:0°C to 70°C; Leaded Process Compatible:No; Number of PWM Outputs:1; Output Current:250mA; Package/Case:28-PLCC ;RoHS Compliant: No
The UC3849 family of average current-mode controllers accurately accomplishes secondary side average current mode control. The secondary-side output voltage is regulated by sensing the output voltage and differentially sensing the ac switching current. The sensed output voltage drives a voltage error amplifier. The ac switching current, monitored by a current sense resistor, drives a high bandwidth, low offset current sense amplifier. The outputs of the voltage error amplifier and current sense amplifier differentially drive a high bandwidth, integrating current error amplifier. The sawtooth waveform at the current error amplifier output is the amplified and inverted inductor current sensed through the resistor. This inductor current down-slope compared to the PWM ramp achieves slope compensation, which gives an accurate and inherent fast transient response to changes in load.The UC3849 features load share, oscillator synchronization, undervoltage lockout, and programmable output control. Multiple chip operation can be achieved by connecting up to ten UC3849 chips in parallel. The SHARE bus and CLKSYN bus provide load sharing and synchronization to the fastest oscillator respectively. The UC3849 is an ideal controller to achieve high power, secondary side average current mode control.
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