UCC29421NG4 Allicdata Electronics
Allicdata Part #:

UCC29421NG4-ND

Manufacturer Part#:

UCC29421NG4

Price: $ 0.00
Product Category:

Integrated Circuits (ICs)

Manufacturer: Texas Instruments
Short Description: IC REG CTRLR MULT TOPOLOGY 16DIP
More Detail: Boost, Flyback, SEPIC Regulator Positive Output St...
DataSheet: UCC29421NG4 datasheetUCC29421NG4 Datasheet/PDF
Quantity: 1000
1 +: 0.00000
Stock 1000Can Ship Immediately
$ 0
Specifications
Frequency - Switching: 150kHz ~ 1.2MHz
Base Part Number: UCC29421
Supplier Device Package: 16-PDIP
Package / Case: 16-DIP (0.300", 7.62mm)
Operating Temperature: -40°C ~ 85°C (TA)
Control Features: Enable, Frequency Control, Low Battery, Reset
Serial Interfaces: --
Clock Sync: Yes
Synchronous Rectifier: Yes
Duty Cycle (Max): 88%
Series: --
Voltage - Supply (Vcc/Vdd): 1.8 V ~ 8 V
Output Phases: 1
Number of Outputs: 1
Topology: Boost, Flyback, SEPIC
Output Configuration: Positive
Function: Step-Up, Step-Up/Step-Down
Output Type: Transistor Driver
Part Status: Discontinued at Digi-Key
Packaging: Tube 
Description

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

The UCC29421NG4 is a high-performance non-synchronous buck controller with excellent control performance, wide voltage range and high power conversion ratio. It is designed to be used in a voltage-regulator power-supply circuit and provides reliable protection while maintaining dynamic response to a wide range of line, load and temperature conditions. UCC29421NG4 operates with high efficiency over a wide input voltage range and offers integrated low-side current sensing, fast loop-response and fast transient response.

Overview

UCC29421NG4 is a synchronous buck controller from Texas Instruments. It is a high-performance non-synchronous buck controller with excellent control performance, wide voltage range and high power conversion ratio. It is designed for use in small form factor, low noise and low power applications such as notebooks, PDAs, cellular phones and other computing devices.

UCC29421NG4 offers high efficiency operation over a wide input voltage range and offers integrated low-side current sensing, fast loop-response and fast transient response. Furthermore, it offers two options for the output voltage, either off or on. This makes it an ideal solution for easy-to-use and efficient power conversion.

Features

UCC29421NG4 offers the following features:

  • Wide input voltage range (3.3 V to 16 V)
  • Low quiescent current (less than 5 mA)
  • Integrated low-side current sensing
  • Fast loop-response
  • Fast transient response
  • Supports off voltage or on voltage output selection
  • High loop-gain stability
  • Thermal shutdown with hysteresis
  • Fault protection circuits

Applications

UCC29421NG4 is suitable for various applications, including but not limited to: notebooks, PDAs, cellular phones, and other computing devices. Other applications include LED lighting drivers, special consumer products, etc.

Working Principle

UCC29421NG4 is a buck controller with integrated low-side current sensing. It is designed to control the output voltage by switching a buck PWM or pulse-width-modulated (PWM) power supply between an input and an output. The switched mode power supply operates by controlling the “on” time and “off” time of a power switch. By controlling the amount of time that the power switch is on and off, the output voltage can be controlled and regulated.

The UCC29421NG4 controller senses the current in the low-side MOSFET, conveniently located at the source of the main MOSFET switch, to derive a grounded source voltage as a measure of the average voltage across the drain and source pins. This voltage is measured using an internal voltage divider circuit.

UCC29421NG4 uses a hysteretic control loop for pulse-width modulation and current-sense circuit. A hysteretic loop monitors the voltage across the switch’s source and gate, and adjusts the PWM duty cycle through a low-pass filter and comparator.

UCC29421NG4 also monitors the temperature of the device and provides an additional temperature protection circuit to ensure safe operation in extreme environments.

Conclusion

UCC29421NG4 is a highly efficient, low power buck controller suitable for various applications and offers various integrated features for easy and efficient power conversion. It offers excellent control performance, wide voltage range and high power conversion ratio. With integrated low-side current sensing, fast loop-response and fast transient response, it is an ideal solution to provide reliable protection and maintain dynamic response to a wide range of line, load and temperature conditions.

The specific data is subject to PDF, and the above content is for reference

Related Products
Search Part number : "UCC2" Included word is 40
Part Number Manufacturer Price Quantity Description
UCC2895QDWRQ1 Texas Instru... -- 1000 IC REG CTRLR ISO PWM 20-S...
UCC2895Q Texas Instru... 0.0 $ 1000 IC REG CTRLR ISO PWM 20-P...
UCC27714EVM-551 Texas Instru... 144.65 $ 6 EVALUATION MODULE UCC2771...
UCC2819APW Texas Instru... 2.36 $ 100 IC PFC CTRL AVERAGE CURR ...
UCC2580N-1 Texas Instru... 0.0 $ 1000 IC REG CTRLR FWRD CONV 16...
UCC27221PWPR Texas Instru... 0.0 $ 1000 IC SYNC BUCK DRIVER HS 14...
UCC2580N-4 Texas Instru... 0.0 $ 1000 IC REG CTRLR BST FLYBK PW...
UCC2893PWRG4 Texas Instru... 1.04 $ 1000 IC REG CTRLR MULT TOP 16T...
UCC2817DG4 Texas Instru... 1.79 $ 1000 IC PFC CTRLR AVERAGE CURR...
UCC28510DWRG4 Texas Instru... 0.0 $ 1000 IC PFC/PWM COMB CTRLR 20S...
UCC27511ADBVR Texas Instru... -- 1000 SINGLE DRIVERLow-Side Gat...
UCC27222PWP Texas Instru... -- 177 IC SYNC BUCK DRVR HS 14-H...
UCC27322DRG4 Texas Instru... 0.91 $ 1000 IC MOSFET DRIVER SGL HS 9...
UCC28881DR Texas Instru... -- 128738 IC OFF-LINE SWITCHER 7SOI...
UCC28780EVM-002 Texas Instru... 362.71 $ 1 EVALUATION MODULEUCC28780...
UCC2810DWTR Texas Instru... -- 1000 IC REG CTRLR PWM CM 16-SO...
UCC283TDKTTT-3 Texas Instru... 3.95 $ 950 IC REG LIN 3.3V 3A DDPAK/...
UCC2891PW Texas Instru... 2.14 $ 270 IC REG CTRLR MULT TOP 16T...
UCC2818PW Texas Instru... 2.73 $ 185 IC PFC CTRL AVERAGE CURR ...
UCC2806PW Texas Instru... 8.32 $ 1000 IC REG CTRLR MULT TOP 16T...
UCC28230PW Texas Instru... 1.62 $ 1000 IC REG CTRLR MULT TOP 14T...
UCC2800NG4 Texas Instru... 2.16 $ 1000 IC REG CTRLR MULT TOPOLOG...
UCC28511DW Texas Instru... 3.49 $ 114 IC PFC/PWM COMB CTRLR 20-...
UCC2894D Texas Instru... 2.49 $ 1240 IC REG CTRLR FLYBK ISO CM...
UCC29002DR Texas Instru... -- 1000 IC LOAD SHARE CTRLR ADV 8...
UCC28089DRG4 Texas Instru... 0.75 $ 1000 IC REG CTRLR PUSH-PULL 8S...
UCC2818DWTR Texas Instru... -- 1000 IC PFC CTRLR AVERAGE CURR...
UCC28512DWRG4 Texas Instru... 1.46 $ 1000 IC PFC/PWM COMB CTRLR 20S...
UCC28510DWR Texas Instru... 0.0 $ 1000 IC PFC/PWM COMB CTRLR 20S...
UCC27201AD Texas Instru... -- 1000 IC DVR HIGH/LOW SIDE 3A 8...
UCC2802N Texas Instru... 2.93 $ 3502 IC REG CTRLR BST FLYBK PW...
UCC28701DBVT Texas Instru... 0.6 $ 250 IC REG CTRLR FLYBK ISO SO...
UCC2570DG4 Texas Instru... 0.0 $ 1000 IC REG CTRLR BST FLYBK VM...
UCC283TDTR-3G3 Texas Instru... 2.99 $ 1000 IC REG LIN 3.3V 3A DDPAK/...
UCC283TDKTTT-5G3 Texas Instru... 3.44 $ 1000 IC REG LIN 5V 3A DDPAK/TO...
UCC2839D Texas Instru... 0.0 $ 1000 IC SECONDARY SIDE CTRLR 1...
UCC2813DTR-1G4 Texas Instru... 0.97 $ 1000 IC REG CTRLR MULT TOPOLOG...
UCC28742DBVT Texas Instru... -- 750 HIGH-EFFICIENCY FLYBACK C...
UCC28019D Texas Instru... 1.09 $ 171 IC CCM PFC CONTROLLER 8SO...
UCC2803PWTR Texas Instru... -- 1000 IC REG CTRLR MULT TOP 8TS...
Latest Products
LM5170PHPT

Switching Controller Polyphase Bidirecti...

LM5170PHPT Allicdata Electronics
LTC3785EUF

IC POWER MANAGEMENTBuck-Boost Regulator ...

LTC3785EUF Allicdata Electronics
AP3586CMPTR-G1

IC REG CTRLR BUCK 8-PSOPBuck Regulator P...

AP3586CMPTR-G1 Allicdata Electronics
MAX5069AAUE

IC REG CTRLR BUCK 16TSSOPBuck Regulator ...

MAX5069AAUE Allicdata Electronics
LM2745MTCX

IC REG CTRLR BUCK 14TSSOPBuck Regulator ...

LM2745MTCX Allicdata Electronics
LTC3890MPUH#TRPBF

IC REG CTRLR BUCK/SEPIC 32QFNBuck Regula...

LTC3890MPUH#TRPBF Allicdata Electronics