Position: Home  > All Categories> Integrated Circuits (ICs) > AS3842

AS3842

Features: 2.5 V bandgap reference trimmed to 1.0% and temperature-compensated Standard temperature range extended to 105°CAS3842/3 oscillations trimmed for precision duty cycle clampAS3844/5 have exact 50% max duty cycle clampAdvanced oscillator design simplifies synchronizationImproved specs on...

product image

AS3842 Picture
See larger image
SeekIC No. : 004288322 Detail

AS3842: Features: 2.5 V bandgap reference trimmed to 1.0% and temperature-compensated Standard temperature range extended to 105°CAS3842/3 oscillations trimmed for precision duty cycle clampAS3844/5 have ...

AS3842 Data Sheet

floor Price/Ceiling Price

Get Latest Price
Part Number:
AS3842
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: 2024/12/21

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:

2.5 V bandgap reference trimmed to 1.0% and temperature-compensated
Standard temperature range extended to 105°C
AS3842/3 oscillations trimmed for precision duty cycle clamp
AS3844/5 have exact 50% max duty cycle clamp
Advanced oscillator design simplifies synchronization
Improved specs on UVLO and hysteresis provide more predictable start-up and shutdown
Improved 5 V regulator provides better AC noise immunity
Guaranteed performance with current sense pulled below ground

 




Pinout

Connection Diagram


Specifications

Parameter min max Unit
Supply Voltage (I CC< 30 mA) VCC Self-Limiting V
Supply Voltage (Low Impedance Source) VCC 30 V
Output Current IOUT ±1 A
Output Energy (Capacitive Load)   5 J
Analog Inputs (Pin 2, Pin 3)   0.3 to 30 V
Error Amp Sink Current   10 mA
Maximum Power Dissipation PD
8L SOIC
8L PDIP
14L SOIC		   750 mW
1000mW
950 mW
Maximum Junction Temperature TJ 150 °C
Operating Temperature   0 to 150 °C
Storage Temperature Range TSTG 65 to 150 °C
Lead Temperature, Soldering 10 Seconds TL 300 °C



Description

The AS3842 family of control ICs provide pin-for-pin replacement of the industry standard UC3842 series of devices. The AS3842 is redesigned to provide significantly improved tolerances in power sup-ply manufacturing. The 2.5 V reference has been trimmed to 1.0% tolerance. The oscillator discharge current is trimmed to provide guar-anteed duty cycle clamping rather than specified discharge current.The circuit is more completely specified to guarantee all parameters impacting power supply manufacturing tolerances.


In addition, the oscillator and flip-flop sections have been enhanced to provide additional performance. The RT /CT pin now doubles as a syn-chronization input that can be easily driven from open collector/open drain logic outputs. This sync input of AS3842 is a high impedance input and can easily be used for externally clocked systems. The new flip-flop topol-ogy allows the duty cycle on the AS3842 to be guaranteed between 49 and 50%. The AS3842 requires less than 0.5 mA of start-up cur-rent over the full temperature range.




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 :
Soldering, Desoldering, Rework Products
TGK-900M-B
TGK-900M-1.6D
Semiconductor Modules
2DI300A-050-03
7MBR25SA-120-50
Potentiometers, Variable Resistors
RV24YN
WXD4-23-3W
Batteries, Chargers, Holders
ICR18650-28A
ICR18650-26F/h
LED Products
LM24P20
KCG057QV1DB-G770
Programmers, Development Systems
ARDUINO IIC/I2C 液晶模块
JTAG-SMT2
View more