UC3856DW - TI

The pictures are for reference only, and the specific specifications can be found in the product manual.

Part No

UC3856DW
Manufacturer

TI
ChipWorker Part#

CW32545890
Category

Voltage Regulator
Package

SOIC-16
Description

Current Mode PWM Controller 1.5A 220kHz 16Pin SOIC Tube
Documentation

Datasheet

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UC3856DW Specifications

Attribute	Attribute Value

Part Number	UC3856DW
Manufacturer	TI
ChipWorker Part#	CW32545890
Category	Voltage Regulator
Documentation	Datasheet
Mounting Style	Surface Mount
Number of Pins	16 Pin
Case/Package	SOIC-16
Frequency	1 MHz
Supply Voltage (DC)	8.00V (min)
Number of Outputs	2 Output
Input Voltage (DC)	40.0 V
Output Voltage	13.1 V
Output Current	500 mA
Supply Current	23 mA
Number of Positions	16 Position
Power Dissipation	1 W
Number of Regulated Outputs	2 Output
Rise Time	40 ns
Switching Frequency	200 kHz
Topology	Buck, Boost, Flyback, Forward, Full-Bridge, Half-Bridge, Push-Pull
Duty Cycle	50 %
Maximum Duty Cycle	50 %
Fall Time	40 ns
Operating Temperature (Max)	70 ℃
Operating Temperature (Min)	0 ℃
Power Dissipation (Max)	1000 mW
Supply Voltage	8V ~ 40V
Supply Voltage (Max)	40 V
Supply Voltage (Min)	8 V
Input Voltage	40 V
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Size-Length	10.28 mm
Size-Width	7.52 mm
Size-Height	2.35 mm
Operating Temperature	0℃ ~ 70℃ (TA)
Product Lifecycle Status	Active
Packaging	Tube
RoHS	RoHS Compliant
Lead-Free Status	Lead Free
REACH SVHC Compliance Edition	2015/06/15
ECCN Code	EAR99

Product Description

The UC3856DW is a high-performance current-mode Pulse Width Modulation (PWM) Controller intended for both design upgrades and new applications where speed and accuracy are important. All input to output delays have been minimized and the current sense output is slew rate limited to reduce noise sensitivity. Fast 1.5A peak output stages have been added to allow rapid switching of power FETs. A low impedance TTL compatible sync output has been implemented with a tri-state function when used as a sync input. This is in conjunction with the improved differential current sense amplifier results in enhanced noise immunity. Other features include a trimmed oscillator current (8%) for accurate frequency and dead time control.
Improved current sense amplifier with reduced noise sensitivity
Differential current sense with 3V common mode range
Trimmed oscillator discharge current for accurate dead band control
Accurate 1V Shutdown threshold
TTL Compatible oscillator SYNC pin thresholds
1.5A Peak high current dual totem pole outputs
65ns Typical delay from shutdown to outputs
50ns Typical delay from sync to outputs
Green product and no Sb/Br

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