Texas Instruments UC3844N
- Part Number:
- UC3844N
- Manufacturer:
- Texas Instruments
- Ventron No:
- 3739405-UC3844N
- Description:
- Single ended 500KHz current mode PWM controller with 16V/10V UVLO 50% duty cycle, 0C to 70C
- Datasheet:
- uc3844
- TopologyBoost
- Control modePeak current mode
- Duty cycle (max) (%)50
- Switching frequency (max) (kHz)500
- FeaturesAdjustable switching frequency
- UVLO thresholds on/off (V)16/10
- Operating temperature range (°C)0 to 70
- RatingCatalog
- Gate drive (typ) (A)1
- Vin (max) (V)28
The UCx84x series of control integrated circuits provide the features that are necessary to implement off-line or DC-to-DC fixed-frequency current-mode control schemes, with a minimum number of external components. The internally implemented circuits include 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 that is 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.
The UCx84x family offers a variety of package options, temperature range options, choice of maximum duty cycle, and choice of turnon and turnoff thresholds and hysteresis ranges. Devices with higher turnon or turnoff hysteresis are ideal choices for off-line power supplies, while the devices with a narrower hysteresis range are suited for DC-DC applications. The UC184x devices are specified for operation from –55°C to 125°C, the UC284x series is specified for operation from –40°C to 85°C, and the UC384x series is specified for operation from 0°C to 70°C.
TEXAS INSTRUMENTS UC3844NPWM Controller, 30V-10V supply, 450 kHz, 13.5V/1A out, DIP-8
PWM CONTROLLER, 500KHZ, 10V-30V, PDIP-8; Input Voltage: 25V; Output Voltage: 13.5V; Output Current: 1A; Supply Voltage Min: 10V; Supply Voltage Max: 30V; Controller IC Case Style: DIP; No. of Pins: 8Pins; Frequency: 450kHz; Operating Temperature Min: 0°C; Operating Temperature Max: 70°C; Product Range: -; Automotive Qualification Standard: -; RoHS Phthalates Compliant: Yes; MSL: -; SVHC: No SVHC (27-Jun-2018); Controller Type: PWM; Input Current: 11mA; Output Energy per Cycle: 5µJ; Output Type: Totem Pole; Power Dissipation Pd: 1W; Termination Type: Through Hole
Latest News
-
15 January 2024
SN75176BDR Characteristics, Working Principle and Applications
Ⅰ. Overview of SN75176BDRⅡ. Specifications of SN75176BDRⅢ. What are the characteristics of SN75176BDR?Ⅳ. Symbol, footprint and pin configuration of SN75176BDRⅤ. Simplified schematic of SN75176BDRⅥ. How does SN75176BDR work?Ⅶ.... -
16 January 2024
AD9361BBCZ RF Transceiver Manufacturer, Characteristics, Applications and Package
Ⅰ. Overview of AD9361BBCZⅡ. Who produced AD9361BBCZ?Ⅲ. Technical parameters of AD9361BBCZⅣ. What are the characteristics of AD9361BBCZ?Ⅴ. Market trend of AD9361BBCZⅥ. Where is AD9361BBCZ used?Ⅶ. How to use... -
16 January 2024
PDIUSBD12 Structure, Pin Configuration, Characteristics and Applications
Ⅰ. Overview of PDIUSBD12Ⅱ. Design of PDIUSBD12Ⅲ. Internal structure of PDIUSBD12Ⅳ. Pin configuration of PDIUSBD12Ⅴ. What are the characteristics of PDIUSBD12?Ⅵ. PDIUSBD12 instructionsⅦ. What are the applications of... -
17 January 2024
MCF5282CVM66 Microcontroller Replacements, Structure, Working Principle and Other Details
Ⅰ. MCF5282CVM66 overviewⅡ. Structure and working principle of MCF5282CVM66Ⅲ. Specifications of MCF5282CVM66Ⅳ. What are the advantages and disadvantages of MCF5282CVM66?Ⅴ. Purpose of MCF5282CVM66Ⅵ. Market trend of MCF5282CVM66Ⅶ. Precautions...
Help you to save your cost and time.
Reliable package for your goods.
Fast Reliable Delivery to save time.
Quality premium after-sale service.