U643B

Features: ` Temperature and supply voltage compensatedflashing frequency` Frequency doubling indicates lamp outage` Relay driver output with high current carrying capacity and low saturation voltage` Minimum lamp load for flasher operation:1 W` Very low susceptibility to EMI` Protection according ...

product image

U643B Picture
SeekIC No. : 004535025 Detail

U643B: Features: ` Temperature and supply voltage compensatedflashing frequency` Frequency doubling indicates lamp outage` Relay driver output with high current carrying capacity and low saturation voltage...

floor Price/Ceiling Price

Part Number:
U643B
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: 2024/11/23

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:

` Temperature and supply voltage compensated flashing frequency
` Frequency doubling indicates lamp outage
` Relay driver output with high current carrying capacity and low saturation voltage
` Minimum lamp load for flasher operation:1 W
` Very low susceptibility to EMI
` Protection according to ISO/TR 7637/1 level 4



Pinout

  Connection Diagram


Specifications

Reference point Pin 1
Parameters
Symbol
Value
Unit
Supply voltage                      Pins 2 and 6
VS
18
V
Surge forward current tp = 0.1 ms Pins 2 and 6
                                   tp = 300 ms Pins 2 and 6
                                   tP = 300 ms Pin 8
IFSM
IFSM
IFSM
1.5
1.0
30.0
A
A
mA
Output current           Pin 3
IO
0.3
A
Power dissipation       Tamb = 95 DIP 8
                                                        SO 8
                                   Tamb = 60 DIP 8
                                                        SO 8
Ptot
Ptot
Ptot
Ptot
420
340
690
560
mW
mW
mW
mW
Junction temperature
Tj
150
Ambient temperature range
Tamb
-40to+95
Storage temperature range
Tstg
-55to+150



Description

The bipolar integrated circuit U643B is used in relaycontrolled automotive flashers where a high-level EMC is required.

Lamp outage of U643B is indicated by frequency doubling during hazard warning as well as direction mode.




Customers Who Bought This Item Also Bought

Margin,quality,low-cost products with low minimum orders. Secure your online payments with SeekIC Buyer Protection.
Sensors, Transducers
Circuit Protection
Crystals and Oscillators
Cables, Wires
View more