MachineU > China Products > Electrical Equipment & Supplies
NCP1252ADR2G Integrated Circuit Chip Current Mode PWM Controller
NCP1252ADR2G Integrated Circuit Chip Current Mode PWM Controller
Specifications
Model Number :
NCP1252ADR2G
Certification :
new & original
Place of Origin :
original factory
MOQ :
10pcs
Price :
Negotiate
Payment Terms :
T/T, Western Union, Paypal
Supply Ability :
9200pcs
Delivery Time :
1 day
Packaging Details :
Please contact me for details
Description :
Converter Offline Flyback, Forward Topology Up to 500kHz 8-SOIC
Power Supply voltage, Vcc pin, continuous voltage :
28 V
Maximum current injected into pin 7 :
20 mA
Maximum voltage on low power pins (except pin 6, 7) :
−0.3 to 10 V
Thermal Resistance Junction−to−Air – SO8 :
180 °C/W
Maximum Junction Temperature :
150 °C
Storage Temperature :
−60 to +150 °C
Description

NCP1252

Current Mode PWM Controller for Forward and Flyback Applications

The NCP1252 controller offers everything needed to build cost− effective and reliable ac−dc switching supplies dedicated to ATX power supplies. Thanks to the use of an internally fixed timer, NCP1252 detects an output overload without relying on the auxiliary Vcc. A Brown−Out input offers protection against low input voltages and improves the converter safety. Finally a SOIC8 package saves PCB space and represents a solution of choice in cost sensitive project.

Features

• Peak Current Mode Control

• Adjustable Switching Frequency up to 500 kHz

• Jittering Frequency ±5% of the Switching Frequency

• Latched Primary Over Current Protection with 10 ms Fixed Delay

• Delayed Operation Upon Start−up via an Internal Fixed Timer

• Adjustable Soft−start Timer

• Auto−recovery Brown−Out Detection

• UC384X−like UVLO Thresholds

• Vcc Range from 9 V to 28 V with Auto−recovery UVLO

• Internal 160 ns Leading Edge Blanking

• Adjustable Internal Ramp Compensation

• +500 mA / –800 mA Source / Sink Capability

• Maximum 50% Duty Cycle: A Version

• Maximum 80% Duty Cycle: B Version

• Ready for Updated No Load Regulation Specifications

• SOIC−8 Package

• This is a Pb−Free Device

Typical Applications

• Power Supplies for PC Silver Boxes, Games Adapter...

• Flyback and Forward Converter

MAXIMUM RATINGS TABLE (Notes 1 and 2)

Symbol Rating Value Unit
VCC Power Supply voltage, Vcc pin, transient voltage: 10 ms with IVcc < 20 mA 30 V
VCC Power Supply voltage, Vcc pin, continuous voltage 28 V
IVcc Maximum current injected into pin 7 20 mA
Maximum voltage on low power pins (except pin 6, 7) −0.3 to 10 V
RθJ−A – SO Thermal Resistance Junction−to−Air – SO8 180 °C/W
TJMAX Maximum Junction Temperature 150 °C
Storage Temperature Range −60 to +150 °C
ESD Capability, HBM model 1.8 kV
ESD Capability, Machine Model 200 V

Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability.

1. This device series contains ESD protection and exceeds the following tests: Human Body Model 1800 V per JEDEC Standard JESD22−A114E. Machine Model Method 200 V per JEDEC Standard JESD22−A115A.

2. This device contains latch−up protection and exceeds 100 mA per JEDEC Standard JESD78.

Stock Offer (Hot Sell)

Part No. Quantity Brand D/C Package
MM74C923N 4409 FAIRCHILD 11+ DIP
MM74HC125MTCX 76000 FAIRCHILD 13+ TSSOP-14
MM74HC125MX 72000 FSC 02+ SOP-14
MM74HC132MX 30000 FAIRCHILD 08+ SOP-14
MM74HC14MX 60000 FAIRCHILD 02+ SOP-14
MM74HC164MX 25000 FSC 05+ SOP-14
MM74HC4060MX 74000 FAIRCHILD 14+ SOP
MM74HC4514N 8186 FSC 05+ DIP
MM9329-2700RA1 11113 MURATA 14+ SMD
MMA7260QR2 2092 FREESCALE 07+ QFN
MMA7455LR1 6965 FREESCALE 13+ LGA14
MMA7660FCR1 3732 FREESCAL 12+ QFN10
MMA8451QR1 12899 FREESCALE 16+ QFN16
MMA8453QR1 4155 FREESCALE 11+ QFN16
MMBD1405 16500 FAIRCHILD 12+ SOT-23
MMBD3004S-7-F 128000 DIODES 14+ SOT-23
MMBD4148 18000 16+ SOT-23
MMBD4148-7-F 12000 DIODES 13+ SOT-23
MMBF170LT1G 12000 ON 13+ SOT-23
MMBF2201NT1G 131000 ON 16+ SOT-323
MMBF2202PT1 77000 ON 16+ SOT-323
MMBFJ177 53000 FSC 16+ SOT-23
MMBT2222A 9000 FSC 16+ SOT-23
MMBT3904-7-F 24000 DIODES 15+ SOT-23
MMBT3906 8000 FSC 16+ SOT-23
MMBT3906-7 9000 DIODES 16+ SOT-23
MMBT3906-7-F 21000 DIODES 12+ SOT-23
MMBT4403LT1G 24000 LRC 16+ SOT-23
MMBT5401LT1G 27000 ON 16+ SOT-23
MMBT5550 9000 FSC 08+ SOT-23

Product tags

model svc automatic voltage regulator

,

svc voltage regulator

,

svc regulator
Send your message to this supplier
Send Now

NCP1252ADR2G Integrated Circuit Chip Current Mode PWM Controller

Ask Latest Price
Product Detail
Model Number :
NCP1252ADR2G
Certification :
new & original
Place of Origin :
original factory
MOQ :
10pcs
Price :
Negotiate
Payment Terms :
T/T, Western Union, Paypal
Contact Supplier
NCP1252ADR2G Integrated Circuit Chip Current Mode PWM Controller

ChongMing Group (HK) Int'l Co., Ltd

Active Member
3 Years
shenzhen
Since 2008
Business Type :
Distributor/Wholesaler
Main Products :
Flash Memory IC Chip, Programmable IC Chip, Computer IC Chips
Total Annual :
5000000-7000000
Employee Number :
80~100
Certification Level :
Active Member
Discover similar products
View More

Find Similar Products By Category:

Supplier Homepage Products Power Management ICs
MachineU China Products Electrical Equipment & Supplies
Contact Supplier
Submit Requirement