Position: Home  > All Categories> Integrated Circuits (ICs) > AZ3843

AZ3843

Features: · Robust VREF Line/Load Regulation Low Line Regulation : 4mV Low Load Regulation : 4mV· High Stability of Reference Voltage over a Full Temperature Range: 0.2mV/ oC· Operating Frequency up to 500KHz· High PWM Frequency Stability over a Full Temperature Range: 2.5%· High PWM Frequency Sta...

product image

AZ3843 Picture
See larger image
SeekIC No. : 004293397 Detail

AZ3843: Features: · Robust VREF Line/Load Regulation Low Line Regulation : 4mV Low Load Regulation : 4mV· High Stability of Reference Voltage over a Full Temperature Range: 0.2mV/ oC· Operating Frequency up...

AZ3843 Data Sheet

floor Price/Ceiling Price

Get Latest Price
Part Number:
AZ3843
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

SeekIC Buyer Protection PLUS - newly updated for 2013!

  • Escrow Protection.
  • Guaranteed refunds.
  • Secure payments.
  • Learn more >>

Month Sales

268 Transactions

Rating

evaluate  (4.8 stars)

Upload time: 2024/4/26

add to my favourite

Payment Methods

All payment methods are secure and covered by SeekIC Buyer Protection PLUS.

Notice: When you place an order, your payment is made to SeekIC and not to your seller. SeekIC only pays the seller after confirming you have received your order. We will also never share your payment details with your seller.
Product Details

Description



Features:

· Robust VREF Line/Load Regulation Low Line Regulation : 4mV Low Load Regulation : 4mV
· High Stability of Reference Voltage over a Full Temperature Range: 0.2mV/ oC
· Operating Frequency up to 500KHz
· High PWM Frequency Stability over a Full Temperature Range: 2.5%
· High PWM Frequency Stability under a Full Supply Voltage Range: 0.2%
· Accurate Over-temperature Protection with Hysteresis
· UVLO with Hysteresis


Application

· Off-line Converter
· DC-DC Converter
· Voltage Adapter
· CRT Monitor Power Supply
· Desktop Power Supply
· DVD/STB Power Supply


Pinout

Connection Diagram


Specifications

Parameter Symbol Value Unit
Supply Voltage Vcc 30 V
Output Current Io 1 A
Analog Inputs (8-pin: pin2,3, 14-pin: pin3,5) V(ANA) -0.3 to 6.3 V
Error Amp Output Sink Current ISINK(E.A) 10 mA
Power Dissipation at TA< 25 oC (DIP-8) PD (Note 3) 1000 mW
Power Dissipation at TA<25 oC (SOIC-8) PD (Note 3) 460 mW
Power Dissipation at TA<25 oC (SOIC-14) PD (Note 3) 725 mW
Storage Temperature Range TSTG -65 ~+150 oC
Lead Temperature (Soldering, 10sec) TLEAD +300 oC



Description

The AZ3842/3/4/5 are high performance fixed frequency current-mode PWM controller series.

The AZ3842/3/4/5 are optimized for off-line and DC-DC converter applications with minimum external components. They feature under-voltage lockout (UVLO) circuit for low start-up current, trimmed oscillator for precise duty cycle control, current sense comparator providing maximum current limiting and a totem pole output stage for increasing output current. In addition, these ICs also feature accurate protection against over-temperature, over-current and maximal output power.

The AZ3842 and AZ3844 have UVLO thresholds of 15.5V(on) and 10V(off); The corresponding thresholds for AZ3843 and AZ3845 are 8.4 V(on) and 7.8V(off). The AZ3842 and AZ3843 can operate approaching 100% duty cycle; AZ3844 and AZ3845 can operate from zero to 50% duty cycle.

The AZ3842/3/4/5 are available in 3 packages: SOIC-8, DIP-8 and SOIC-14.




Customers Who Bought This Item Also Bought

Margin,quality,low-cost products with low minimum orders. Secure your online payments with SeekIC Buyer Protection.
You may also be interested in :
Tapes, Adhesives
803
AC452-2
Memory Cards, Modules
WT32
VTL5C7
Prototyping Products
AVT4168
DE1
Connectors, Interconnects
ASP-134488-01
WM4078-ND
Optical Inspection Equipment
AA924
A21K4B
Power Supplies - Board Mount
HC-06
PM150RSA060-S81AH0G
View more