UC3844D

Manufacturer :

Fairchild Semiconductor

Product Category :

DC DC Switching Controllers

Output Configuration :

Positive

Lifecycle Status :

ACTIVE (Last Updated: 1 day ago)

Frequency :

450kHz

Function :

Step-Up, Step-Down, Step-Up/Step-Down

Analog IC - Other Type :

SWITCHING CONTROLLER

Package / Case :

14-SOIC (0.154, 3.90mm Width)

Length :

8.65mm

Packaging :

Tube

Terminal Form :

Gull wing

RoHS Status :

ROHS3 Compliant

Base Part Number :

UC3844

Operating Temperature :

0°C~70°C TA

Input Voltage-Nom :

15V

Rise Time :

50ns

Synchronous Rectifier :

No

Moisture Sensitivity Level (MSL) :

1 (Unlimited)

Output Current :

200mA

Pbfree Code :

yes

Supply Current-Max (Isup) :

25mA

Nominal Input Voltage :

25V

Number of Terminations :

14

Number of Pins :

14

JESD-609 Code :

e4

ECCN Code :

EAR99

Weight :

122.413241mg

Fall Time (Typ) :

50 ns

Lead Free :

Lead Free

Mounting Type :

Surface Mount

Max Duty Cycle :

50 %

REACH SVHC :

No SVHC

Topology :

Boost, Buck, Buck-Boost, Flyback, Forward

Terminal Finish :

Nickel/Palladium/Gold (Ni/Pd/Au)

Height :

1.75mm

Thickness :

1.58mm

Max Power Dissipation :

725mW

Control Technique :

PULSE WIDTH MODULATION

Control Mode :

CURRENT-MODE

Max Output Current :

1A

Output Voltage :

13.5V

Width :

3.91mm

Frequency - Switching :

Up to 500kHz

Surface Mount :

yes

Voltage - Supply (Vcc/Vdd) :

12V~28V

Output Type :

Transistor Driver

Quiescent Current :

11mA

Number of Outputs :

1

Terminal Position :

Dual

Control Features :

Frequency Control

Duty Cycle (Max) :

48%

Factory Lead Time :

6 Weeks

Peak Reflow Temperature (Cel) :

260