Position: Home  > All Categories> Integrated Circuits (ICs) > AS2845

AS2845

Features: • 2.5 V bandgap reference trimmed to 1.0% and temperature-compensated• Extended temperature range from - 40 to 105° C• AS2842/3 oscillations trimmed for precision duty cycle clamp• AS2844/5 have exact 50% max duty cycle clamp• Advanced oscillator design simp...

product image

AS2845 Picture
See larger image
SeekIC No. : 004288271 Detail

AS2845: Features: • 2.5 V bandgap reference trimmed to 1.0% and temperature-compensated• Extended temperature range from - 40 to 105° C• AS2842/3 oscillations trimmed for precision duty cy...

AS2845 Data Sheet

floor Price/Ceiling Price

Get Latest Price
Part Number:
AS2845
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:

• 2.5 V bandgap reference trimmed to 1.0% and temperature-compensated
• Extended temperature range from - 40 to 105° C
• AS2842/3 oscillations trimmed for precision duty cycle clamp
• AS2844/5 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
• Over-temperature shutdown


Pinout

Connection Diagram


Specifications

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



Description

The AS2842 family of control ICs provide pin-for-pin replacement of the industry standard UC3842 series of devices.AS2845 are redesigned to provide significantly improved tolerances in power supply manufacturing. The 2.5 V reference has been trimmed to 1.0% tolerance. The oscillator discharge current of AS2845 is trimmed to provide guaranteed 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 synchronization input that can be easily driven from open collector/open drain logic outputs. This sync input of AS2845  is a high impedance input and can easily be used for externally clocked systems. The new flip-flop topology allows the duty cycle on the AS2844/5 to be guaranteed between 49 and 50%. The AS2843/5 requires less than 0.5 mA of start-up current 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 :
Programmers, Development Systems
ARDUINO IIC/I2C 液晶模块
JTAG-SMT2
Integrated Circuits (ICs)
TA8435H
1MB12-140
Cable Assemblies
CS1W-CN114
XW2Z-500T
Switches
US32DMRJ
HBGQ22P-11ET
Optical Inspection Equipment
AA924
A21K4B
Industrial Controls, Meters
SGDM-15ADA
41AA1600E
View more