Texas Instruments UC3843AD

Name: UC3843AD
Brand: Texas Instruments
SKU: 3289843-UC3843AD
Availability: InStock
Rating: 5 (1 reviews)

Part Number:: UC3843AD

Manufacturer:: Texas Instruments

Ventron No:: 3289843-UC3843AD

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 UC3843AD technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments UC3843AD.

Lifecycle Status
OBSOLETE (Last Updated: 2 weeks ago)
Mount
Surface Mount
Mounting Type
Surface Mount
Package / Case
8-SOIC (0.154, 3.90mm Width)
Number of Pins
14
Weight
230.4mg
Operating Temperature
0°C~70°C TA
Packaging
Tube
Published
2000
JESD-609 Code
e0
Pbfree Code
no
Part Status
Obsolete
Moisture Sensitivity Level (MSL)
1 (Unlimited)
Number of Terminations
14
ECCN Code
EAR99
Terminal Finish
Tin/Lead (Sn/Pb)
Subcategory
Switching Regulator or Controllers
Technology
BIPOLAR
Terminal Position
DUAL
Terminal Form
GULL WING
Peak Reflow Temperature (Cel)
240
Reflow Temperature-Max (s)
30
Base Part Number
UC3843
Function
Step-Up, Step-Up/Step-Down
Number of Outputs
1
Output Voltage
5.1V
Output Type
Transistor Driver
Input Voltage-Nom
15V
Analog IC - Other Type
SWITCHING CONTROLLER
Operating Supply Current
17mA
Nominal Supply Current
17mA
Output Configuration
Positive
Output Current
1A
Voltage - Supply (Vcc/Vdd)
7.6V~30V
Control Features
Frequency Control
Input Voltage (Min)
8.2V
Topology
Boost, Flyback
Control Mode
CURRENT-MODE
Frequency - Switching
Up to 500kHz
Input Voltage (Max)
30V
Control Technique
PULSE WIDTH MODULATION
Rise Time
40ns
Synchronous Rectifier
No
Fall Time (Typ)
40 ns
Switcher Configuration
SINGLE
Max Frequency
500kHz
Max Duty Cycle
100 %
Duty Cycle (Max)
96%
Length
8.65mm
Width
3.9mm
RoHS Status
RoHS Compliant
Lead Free
Lead Free

Description

UC3843AD Overview
This component is manufactured by Texas Instruments and falls under the category of PMIC - Voltage Regulators - DC DC Switching Controllers. It is a chip used for power management and voltage regulation. Its current status is OBSOLETE, with the last update being 2 weeks ago. The Moisture Sensitivity Level is 1, indicating that it is not sensitive to moisture and can be used in any environment. Its terminal position is DUAL, and it has a Transistor Driver output type. This chip is classified as an Analog IC - Other Type, specifically a SWITCHING CONTROLLER. It has an operating supply current of 17mA and a topology of Boost and Flyback. The switching frequency can reach up to 500kHz, and it uses the control technique of PULSE WIDTH MODULATION. This chip has a width of 3.9mm.

UC3843AD Features
Transistor Driver Outputs
Switching Frequency: Up to 500kHz
Frequency Control
PULSE WIDTH MODULATION
Max Duty Cycle: 100 %

UC3843AD Applications
There are a lot of ON Semiconductor UC3843AD DC to DC converter applications.

Injection molding machinery
Direct power supply system
Terrestrial set-top boxes
Mobile phones
Emergency lighting monitoring equipment
Flexible manufacturing cells
Program control systems
Computer rooms
Fire elevators
PSRR circuits

UC3843AD More Descriptions

TEXAS INSTRUMENTS UC3843ADPWM Controller, 30V-7.6V supply, 500 kHz, 13.5V/1A out, SOIC-14
PWM CONTROLLER, 500KHZ, 7.6V-30V, SOIC14; Input Voltage: 25V; Output Voltage: 13.5V; Output Current: 1A; Supply Voltage Min: 7.6V; Supply Voltage Max: 30V; Controlle; Available until stocks are exhausted Alternative available
Pwm Controller, 500Khz, 7.6V-30V, Soic14; Input Voltage:25V; Output Voltage:13.5V; Output Current:1A; Supply Voltage Min:7.6V; Supply Voltage Max:30V; Controller Ic Case Style:Soic; No. Of Pins:14Pins; Frequency:500Khz; Operating Rohs Compliant: Yes |TEXAS INSTRUMENTS UC3843AD

Certification