Texas Instruments UC3843AD8

Name: UC3843AD8
Brand: Texas Instruments
SKU: 3288085-UC3843AD8
Availability: InStock
Rating: 5 (1 reviews)

Part Number:: UC3843AD8

Manufacturer:: Texas Instruments

Ventron No:: 3288085-UC3843AD8

Description:: 30-V, 1A, 500KHz current mode PWM controller with 8.4V/7.6V UVLO 100% duty cycle 0°C to 70°C

ECAD Model:

Datasheet:: uc3843a

Specifications

Texas Instruments UC3843AD8 technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments UC3843AD8.

Factory Lead Time
6 Weeks
Lifecycle Status
ACTIVE (Last Updated: 1 day ago)
Mounting Type
Surface Mount
Package / Case
8-SOIC (0.154, 3.90mm Width)
Surface Mount
YES
Number of Pins
8
Weight
72.603129mg
Operating Temperature
0°C~70°C TA
Packaging
Tube
JESD-609 Code
e4
Pbfree Code
yes
Part Status
Active
Moisture Sensitivity Level (MSL)
1 (Unlimited)
Number of Terminations
8
ECCN Code
EAR99
Terminal Finish
Nickel/Palladium/Gold (Ni/Pd/Au)
Subcategory
Switching Regulator or Controllers
Technology
BIPOLAR
Terminal Position
DUAL
Terminal Form
GULL WING
Peak Reflow Temperature (Cel)
260
Supply Voltage
11V
Frequency
500kHz
Base Part Number
UC3843
Function
Step-Up, Step-Down, Step-Up/Step-Down
Number of Outputs
1
Output Voltage
5V
Output Type
Transistor Driver
Input Voltage-Nom
15V
Analog IC - Other Type
SWITCHING CONTROLLER
Output Configuration
Positive
Power Dissipation
1W
Output Current
200mA
Voltage - Supply (Vcc/Vdd)
7.6V~30V
Quiescent Current
11mA
Control Features
Frequency Control
Topology
Boost, Buck, Buck-Boost, Flyback, Forward
Control Mode
CURRENT-MODE
Frequency - Switching
Up to 500kHz
Control Technique
PULSE WIDTH MODULATION
Rise Time
50ns
Supply Current-Max (Isup)
25mA
Synchronous Rectifier
No
Fall Time (Typ)
50 ns
Nominal Input Voltage
25V
Max Duty Cycle
100 %
Input Current
11mA
Duty Cycle (Max)
96%
Height
1.75mm
Length
4.9mm
Width
3.91mm
Thickness
1.58mm
REACH SVHC
No SVHC
RoHS Status
ROHS3 Compliant
Lead Free
Lead Free

Description

UC3843AD8 Overview
With a 8-SOIC (0.154, 3.90mm Width) package, the switching controller is suitable for a wide range of applications. It is sufficient to generate 1 outputs with this dc motor controller. PMIC packaging is solid with a Tube enclosure. There are Transistor Driver dc switching's output (s) that it can handle. 7.6V~30V is the operating voltage and supply voltage of the dc control. Suitable for working in an dc switcher that has a 0°C~70°C TA. This switching controller can switch at Up to 500kHz. It is suitable for general dc dc regulator when it is set to Surface Mount. DCDC regulator is controlled efficiently by Frequency Control. A SWITCHING CONTROLLER analog IC is connected to the switch converters. There are a terminal (s) on the switching converters that are designed at DUAL. Different dc switching's functions can be applied to 8 terminations. PULSE WIDTH MODULATION is an example of one of the control techniques these dc dc converter ics adapt. The DC switcher's nominal voltage is 15V. You can find other relevant dc to dc converter ics by searching "UC3843". There are a total of 8 pins on switching converter. Switching converter is a special type of Switching Regulator or Controllers. According to the test statistics, DC regulator outputs 5V voltage. It's important to remember that the dc dc regulator's normaloutput current is 200mA, so you should note it down when starting a new project. Power-up and power-down reliability is ensured voltage regulator dc to dc by setting the maximum duty cycle to 100 %. Switching controller operates at 500kHz Hz. A dc switching in a dormant state uses 11mA. For nominal working status, the input voltage can be set as 25V. There is a requirement for a 11V supply voltage. The controller should not be supplied with more current than 25mA. If there is 11mA current flow input, then the switching converter could operate.

UC3843AD8 Features
Transistor Driver Outputs
Switching Frequency: Up to 500kHz
Frequency Control
PULSE WIDTH MODULATION
Max Duty Cycle: 100 %
Frequency: 500kHz

UC3843AD8 Applications
There are a lot of Texas Instruments UC3843AD8 DC to DC converter applications.

CNC system
Analog precision reference circuits
Geothermal power
Bending machines
Digital video recorders
Hydro power
Photovoltaic power
Terrestrial set-top boxes
Surge protection circuits
Linear guide

UC3843AD8 More Descriptions

TEXAS INSTRUMENTS UC3843AD8PWM Controller, 25V-12V supply, 500 kHz, 5V/1A out, SOIC-8
Current Mode PWM Controller -0.1V to 11V 1A 500kHz 8-Pin SOIC Tube
Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BIPolar, PDSO8
30-V, 1A, 500KHz current mode PWM controller with 8.4V/7.6V UVLO 100% duty cycle 0°C to 70°C 8-SOIC 0 to 70
UC3843 Boost Buck Buck-Boost Flyback Forward Tube e4 DC to DC switching controller 50ns 200mA 72.603129mg 5V
IC REG CTRLR MULT TOPOLOGY 8SOIC
PWM Power Supply Controllers Current Mode
French Electronic Distributor since 1988
CURRENT MODE PWM CONTROLLER PWM CONTROLLER, SMD, 3843, SOIC8; Input Voltage:25V; Output Voltage:5V; Output Current:200mA; Frequency:500kHz; Power Dissipation Pd:1W; Supply Voltage Range:12V to 25V; Digital IC Case Style:SOIC; No. of Pins:8; Operating Temperature Range:0°C to 70°C; MSL:MSL 2 - 1 year; Base Number:3843; Controller Type:PWM; Device Marking:UC3843AD8; IC Generic Number:3843; IC Temperature Range:Commercial; Input Current:11mA; Input Voltage Max:25V; Logic Function Number:3843; Operating Temperature Max:70°C; Operating Temperature Min:0°C; Output Current Max:1A; Output Energy per Cycle:5µJ; Output Type:Totem Pole; Output Voltage Max:5V; Package / Case:SOIC; Power Supply IC Type:PWM controller; Supply Voltage Max:25V; Supply Voltage Min:12V; Termination Type:SMD

Certification