UC3851DW

Manufacturer :

Texas Instruments

Product Category :

AC DC Converters, Offline Switches

Duty Cycle :

50%

Number of Functions :

1

Lead Free :

Lead Free

Voltage - Start Up :

8V

Number of Pins :

18

Control Features :

Frequency Control, Soft Start

Analog IC - Other Type :

SWITCHING CONTROLLER

Isolation :

Non-Isolated

Internal Switch(s) :

No

Operating Temperature :

0°C~70°C TA

Moisture Sensitivity Level (MSL) :

2 (1 Year)

Input Voltage-Nom :

20V

Output Power :

1W

Number of Terminations :

18

Packaging :

Tube

HTS Code :

8542.39.00.01

Max Duty Cycle :

46 %

Topology :

Boost, Buck, Flyback, Forward

RoHS Status :

ROHS3 Compliant

Base Part Number :

UC3851

Rise Time :

50ns

Fault Protection :

Current Limiting, Over Voltage

Control Mode :

CURRENT/VOLTAGE-MODE

Frequency - Switching :

Up to 500kHz

Output Voltage :

40V

Package / Case :

18-SOIC (0.295, 7.50mm Width)

Mounting Type :

Surface Mount

Pin Count :

18

Fall Time (Typ) :

50 ns

ECCN Code :

EAR99

Frequency :

450kHz

Control Technique :

PULSE WIDTH MODULATION

JESD-609 Code :

e4

Height :

2.65mm

Voltage - Supply (Vcc/Vdd) :

7.8V~32V

Width :

7.5mm

Supply Current-Max (Isup) :

21mA

Switcher Configuration :

Buck-Boost

Output Current :

400mA

Terminal Finish :

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

Thickness :

2.35mm

Pbfree Code :

yes

Additional Feature :

CURRENT MODE OPERATION IS ALSO POSSIBLE

Surface Mount :

yes

Nominal Input Voltage :

30V

Length :

11.5mm

Lifecycle Status :

ACTIVE (Last Updated: 1 week ago)

Factory Lead Time :

6 Weeks

Nominal Supply Current :

15mA

Terminal Position :

Dual

Terminal Form :

Gull wing

Max Power Dissipation :

1W

Peak Reflow Temperature (Cel) :

260

Terminal Pitch :

1.27mm