Texas Instruments TL2844P
- Part Number:
- TL2844P
- Manufacturer:
- Texas Instruments
- Ventron No:
- 3257942-TL2844P
- Description:
- Economy single ended 500KHz current mode PWM controller with 16V/10V UVLO 50% duty cycle, -40-85C
- Datasheet:
- tl2844
Description
The TL284x and TL384x series of control integrated circuits provide the features necessary to implement off-line or DC-to-DC fixed-frequency current-mode control schemes with a minimum number of external components. Some of the internally implemented circuits are an undervoltage lockout (UVLO), featuring a start-up current of less than 1 mA, and a precision reference trimmed for accuracy at the error amplifier input. Other internal circuits include logic to ensure latched operation, a pulse-width modulation (PWM) comparator (that also provides current-limit control), and a totem-pole output stage designed to source or sink high-peak current. The output stage, suitable for driving N-channel MOSFETs, is low when it is in the off state.
Features
Low Start-Up Current (< 1 mA)
Automatic Feed-forward compensation
Pulse-by-Pulse Current Limiting
Enhanced Load-Response Characteristics
Undervoltage Lockout With Hysteresis
Double-Pulse Suppression
High-Current Totem-Pole Output
Internally Trimmed Bandgap Reference
500-kHz Operation
Error Amplifier With Low Output Resistance
Designed to be Interchangeable with UC2842 and UC3842 Series
Applications
Switching regulators of any polarity
Transformer-coupled DC/DC converters
The TL284x and TL384x series of control integrated circuits provide the features necessary to implement off-line or DC-to-DC fixed-frequency current-mode control schemes with a minimum number of external components. Some of the internally implemented circuits are an undervoltage lockout (UVLO), featuring a start-up current of less than 1 mA, and a precision reference trimmed for accuracy at the error amplifier input. Other internal circuits include logic to ensure latched operation, a pulse-width modulation (PWM) comparator (that also provides current-limit control), and a totem-pole output stage designed to source or sink high-peak current. The output stage, suitable for driving N-channel MOSFETs, is low when it is in the off state.
Features
Low Start-Up Current (< 1 mA)
Automatic Feed-forward compensation
Pulse-by-Pulse Current Limiting
Enhanced Load-Response Characteristics
Undervoltage Lockout With Hysteresis
Double-Pulse Suppression
High-Current Totem-Pole Output
Internally Trimmed Bandgap Reference
500-kHz Operation
Error Amplifier With Low Output Resistance
Designed to be Interchangeable with UC2842 and UC3842 Series
Applications
Switching regulators of any polarity
Transformer-coupled DC/DC converters
Texas Instruments TL2844P technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments TL2844P.
- Factory Lead Time6 Weeks
- Lifecycle StatusACTIVE (Last Updated: 1 day ago)
- Mounting TypeThrough Hole
- Package / Case8-DIP (0.300, 7.62mm)
- Surface MountNO
- Number of Pins8
- Weight440.409842mg
- Operating Temperature-40°C~85°C TA
- PackagingTube
- JESD-609 Codee4
- Pbfree Codeyes
- Part StatusActive
- Moisture Sensitivity Level (MSL)1 (Unlimited)
- Number of Terminations8
- ECCN CodeEAR99
- Terminal FinishNickel/Palladium/Gold (Ni/Pd/Au)
- SubcategorySwitching Regulator or Controllers
- TechnologyBIPOLAR
- Terminal PositionDUAL
- Peak Reflow Temperature (Cel)260
- Supply Voltage15V
- Terminal Pitch2.54mm
- Frequency500kHz
- Base Part NumberTL2844
- FunctionStep-Up, Step-Up/Step-Down
- Number of Outputs1
- Output Voltage30V
- Output TypeTransistor Driver
- Input Voltage-Nom15V
- Analog IC - Other TypeSWITCHING REGULATOR
- Output ConfigurationPositive
- Output Current200mA
- Voltage - Supply (Vcc/Vdd)10V~30V
- Quiescent Current11mA
- Control FeaturesFrequency Control
- TopologyBoost, Flyback, Forward
- Control ModeCURRENT-MODE
- Frequency - SwitchingUp to 500kHz
- Control TechniquePULSE WIDTH MODULATION
- Rise Time50ns
- Supply Current-Max (Isup)30mA
- Synchronous RectifierNo
- Fall Time (Typ)50 ns
- Nominal Input Voltage5.5V
- Max Duty Cycle50 %
- Duty Cycle (Max)48%
- Height5.08mm
- Length9.81mm
- Width6.35mm
- Thickness3.9mm
- REACH SVHCNo SVHC
- RoHS StatusROHS3 Compliant
- Lead FreeLead Free
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