8 Terminals 10V~30V 8-Pin UC*84 DC to DC converter ICSWITCHING CONTROLLER 1 Outputs Up to 500kHz Transistor Driver
SOT-23
UC3844ADM Datasheet
non-compliant
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Specifications
Name
Value
Type
Parameter
Lifecycle Status
OBSOLETE (Last Updated: 1 month ago)
Mount
Surface Mount
Mounting Type
Surface Mount
Package / Case
8-SOIC (0.154, 3.90mm Width)
Number of Pins
8
Weight
540.001716mg
Operating Temperature
0°C~70°C TA
Packaging
Tube
Published
1997
JESD-609 Code
e3
Pbfree Code
yes
Part Status
Discontinued
Moisture Sensitivity Level (MSL)
1 (Unlimited)
Number of Terminations
8
ECCN Code
EAR99
Terminal Finish
Matte Tin (Sn)
Subcategory
Switching Regulator or Controllers
Technology
BIPOLAR
Terminal Position
DUAL
Terminal Form
GULL WING
Peak Reflow Temperature (Cel)
260
Frequency
500kHz
Time@Peak Reflow Temperature-Max (s)
40
Base Part Number
UC*84
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
Operating Supply Current
11mA
Output Configuration
Positive
Output Current
1A
Voltage - Supply (Vcc/Vdd)
10V~30V
Quiescent Current
11mA
Output Power
25W
Control Features
Frequency Control
Topology
Boost, Buck, Flyback, Forward
Control Mode
CURRENT-MODE
Frequency - Switching
Up to 500kHz
Input Voltage (Max)
30V
Control Technique
PULSE WIDTH MODULATION
Rise Time
50ns
Synchronous Rectifier
No
Switcher Configuration
SINGLE
Max Duty Cycle
50 %
Isolation
Isolated
Duty Cycle (Max)
48%
RoHS Status
RoHS Compliant
Lead Free
Lead Free
UC3844ADM Product Details
UC3844ADM Overview
With a 8-SOIC (0.154, 3.90mm Width) package, the switching controller is suitable for a wide range of applications. There is sufficient capacity to generate switching controller for outputs 1. A solid enclosure of Tube surrounds pmic. Transistor Driver dc switching's outputs (s) can be handled by it. This dc control operates at 10V~30V and has a 10V~30V supply voltage. Worked in a 0°C~70°C TA dc switcher before. The switching controller is capable of switching at the Up to 500kHz position. The Surface Mount allows it to be used for dc dc regulator in general. Frequency Control provides dcdc regulator efficient switching control. A SWITCHING CONTROLLER analog integrated circuit is connected to the switch converters. Switching converters are designed with the terminal (s) at position DUAL . A variety of terminations with 8 of dc switching. A few of the control techniques these dc dc converter ics adapt include PULSE WIDTH MODULATION. DC switcher's input voltageis set to 15V. UC*84 can be used to locate other relevant dc to dc converter ics. Total pins of switching converter are 8. Specifically, switching converter falls under the Switching Regulator or Controllers category. DC regulator outputs 5V voltage based on test statistics. It should be fully noted that the dc to dc regulator only accepts 30V input voltage at most. A starting point for a project is to note down the dc dc regulator's usual output current, which is 1A. During power-up and power-down, the maximum duty cycle of the voltage regulator dc to dc is set to 50 %. Because of DC switcher's Surface Mount, it is suitable for most prototype designs and applications. Switching controller operates at 500kHz Hz. As long as the dc switching is in a dormant state, it utilizes 11mA. There is 11mA supply current for it.
UC3844ADM Features
Transistor Driver Outputs Switching Frequency: Up to 500kHz Frequency Control PULSE WIDTH MODULATION Max Duty Cycle: 50 % Frequency: 500kHz
UC3844ADM Applications
There are a lot of Microsemi Corporation UC3844ADM DC to DC converter applications.