NCP1351BDR2G - ON Semiconductor

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

Part No

NCP1351BDR2G
Manufacturer

ON Semiconductor
ChipWorker Part#

CW7192696
Category

PWM Controller IC
Package

SOIC-8
Description

Current Mode PWM Controller -0.3V to 20V 400mA 8Pin SOIC N T/R
Documentation

Datasheet

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NCP1351BDR2G Specifications

Attribute	Attribute Value

Part Number	NCP1351BDR2G
Manufacturer	ON Semiconductor
ChipWorker Part#	CW7192696
Category	PWM Controller IC
Documentation	Datasheet
Mounting Style	Surface Mount
Number of Pins	8 Pin
Case/Package	SOIC-8
Frequency	65 kHz
Supply Voltage (DC)	6.00V (min)
Halogen Free Status	Halogen Free
Number of Outputs	1 Output
Input Voltage (DC)	12.0 V
Output Voltage	20 V
Output Current	400 mA
Number of Positions	8 Position
Rise Time	90 ns
Topology	Flyback
Thermal Resistance	176 ℃/W
Fall Time	100 ns
Operating Temperature (Max)	150 ℃
Operating Temperature (Min)	-25 ℃
Supply Voltage	28 V
Supply Voltage (Max)	22 V
Supply Voltage (Min)	6 V
Input Voltage	12 V
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Size-Length	5 mm
Size-Width	4 mm
Size-Height	1.5 mm
Operating Temperature	-25℃ ~ 125℃ (TJ)
Product Lifecycle Status	Active
Packaging	Tape & Reel (TR)
RoHS	RoHS Compliant
Lead-Free Status	Lead Free
REACH SVHC Compliance Edition	2015/12/17
ECCN Code	EAR99

Product Description

The NCP1351 is a current−mode controller targeting low power off−line flyback Switched Mode Power Supplies (SMPS) where cost is of utmost importance. Based on a fixed peak current technique (quasi−fixed TON), the controller decreases its switching frequency as the load becomes lighter. As a result, a power supply using the NCP1351 naturally offers excellent no−load power consumption, while optimizing the efficiency in other loading conditions. When the frequency decreases, the peak current is gradually reduced down to approximately 30% of the maximum peak current to prevent transformer mechanical resonance. The risk of acoustic noise is thus
greatly diminished while keeping good standby power performance.
Features
•Quasi−fixed TON, Variable TOFF Current Mode Control
•Extremely Low Current Consumption at Startup
•Peak Current Compression Reduces Transformer Noise
•Primary or Secondary Side Regulation
•Dedicated Latch Input for OTP, OVP
•Programmable Current Sense Resistor Peak Voltage
•Natural Frequency Dithering for Improved EMI Signature
•Easy External Over Power Protection (OPP)
•Undervoltage Lockout
•Very Low Standby Power via Off−time Expansion
•Internal Temperature Shutdown
•SOIC−8 Package

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