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UCC28089

Features: ` Push-Pull Oscillator With Programmable Deadtime` High-Current Totem-Pole Dual Output Stage Drives Push-Pull Configuration with 1-A Sink and 0.5-A Source Capability` Can be Used in Push-Pull, Half-Bridge, or Full-Bridge Topologies` Oscillator Synchronization Output` Low Start-Up Current...

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SeekIC No. : 004535858 Detail

UCC28089: Features: ` Push-Pull Oscillator With Programmable Deadtime` High-Current Totem-Pole Dual Output Stage Drives Push-Pull Configuration with 1-A Sink and 0.5-A Source Capability` Can be Used in Push-P...

UCC28089 Data Sheet

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Part Number:
UCC28089
Supply Ability:
5000

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

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Product Details

Description



Features:

` Push-Pull Oscillator With Programmable Deadtime
` High-Current Totem-Pole Dual Output Stage Drives Push-Pull Configuration with 1-A Sink and 0.5-A Source Capability
` Can be Used in Push-Pull, Half-Bridge, or Full-Bridge Topologies
` Oscillator Synchronization Output
` Low Start-Up Current of 130 A and 1.4-mA Typical Run Current
` Over-Current Shutdown
` Digitally Controlled Over-Current/Retry Feature
` Undervoltage Lockout With Hysteresis


Application

· High Efficiency Cascaded Converters
· Inverters
· Electronic Ballasts
· Uninterruptable Power Supplies (UPS)
· AC or DC Links


Pinout

Connection Diagram


Specifications

PARAMETER
SYMBOL
RATING
UNITS
Supply voltage (IDD < 10 mA)
VDD
15
V
Supply current
IDD
20
mA
OUTA/OUTB sink current (peak)
IOUT(sink)
1.0
A
OUTA/OUTB source current (peak)
IOUT(source)
-0.5
SYNC sink current (peak)
50
mA
SYNC source current (peak)
-50
Analog inputs (DIS, CT, CS)
−0.3 to VDD + 0.3, not to exceed 5
V
Power dissipation at TA = 25 (D package)
650
mW
Power dissipation at TA = 25 (DRB package)
TBD
Junction operating temperature
TJ
−55 to 150
Storage temperature
Tstg
−65 to 150
Lead temperature (soldering, 10 sec.)
Tsol
+300
† Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. Exposure to absolute−maximum−rated conditions for extended periods may affect device reliability.
‡ All voltages are with respect to GND. Currents are positive into, negative out of the specified terminal. Consult Packaging Section of the Databook for thermal limitations and considerations of packages.


Description

The UCC28089 is a versatile BiCMOS controller for dc-to-dc or off-line fixed-frequency switching power supplies. The UCC28089 has dual alternating output stages in dual-alternating push-pull configuration. Both outputs switch at half the oscillator frequency using a toggle flip-flop and duty cycle is limited to less than 50%.




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