IRS254PbF

Features: • 200 V (IRS2540) and 600 V (IRS2541) half bridge driver• Micropower startup (<500 A)• ±2% voltage reference• 140 ns deadtime• 15.6 V zener clamp on VCC• Frequency up to 500 kHz• Auto restart, non-latched shutdown• PWM dimmable• Sm...

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SeekIC No. : 004378770 Detail

IRS254PbF: Features: • 200 V (IRS2540) and 600 V (IRS2541) half bridge driver• Micropower startup (<500 A)• ±2% voltage reference• 140 ns deadtime• 15.6 V zener clamp on VCC...

floor Price/Ceiling Price

Part Number:
IRS254PbF
Supply Ability:
5000

Price Break

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

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Upload time: 2024/11/21

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Product Details

Description



Features:

• 200 V (IRS2540) and 600 V (IRS2541) half bridge driver
• Micropower startup (<500 A)
• ±2% voltage reference
• 140 ns deadtime
• 15.6 V zener clamp on VCC
• Frequency up to 500 kHz
• Auto restart, non-latched shutdown
• PWM dimmable
• Small 8-Lead DIP/8-Lead SOIC packages



Specifications

Symbol Definition Min. Max. Units
VB High-side floating supply voltage IRS2540
IRS2541
-0.3 225
625
V
VS High-side floating supply offset voltage VB 25 VB + 0.3 v
VHO High-side floating output voltage VS 0.3 VB + 0.3 V
VLO Low-side output voltage -0.3 VCC + 0.3 V
VIFB Feedback voltage -0.3 VCC + 0.3 V
VENN Enable voltage -0.3 VCC + 0.3 V
ICC Supply current (Note 1) -20 20 mA
dV/dt Allowable offset voltage slew rate -50 50 V/ns
PD Package power dissipation @ TA +25 ºC
PD = (TJMAX-TA)/RTHJA (8-Pin DIP)
(8-Pin SOIC)
  1
0.625
W
RTHJA Thermal resistance, junction to ambient (8-Pin DIP)
(8-Pin SOIC)
  125
200
ºC/W
TJ Junction temperature -55 150 ºC
TS Storage temperature -55 150 ºC
TL Lead temperature (soldering, 10 seconds)   300 ºC

Note 1: This IC contains a zener clamp structure between the chip VCC and COM, with a nominal breakdown voltage of
15.6 V. Please note that this supply pin should not be driven by a low impedance DC power source greater than VCLAMP specified in the electrical characteristics section.




Description

The IRS254(0,1) are high voltage, high frequency buck control ICs for constant LED current regulation. They incorporate a continuous mode time-delayed hysteretic buck regulator to directly control the average load current, using an accurate on-chip bandgap voltage reference.

The application is inherently protected against short circuit conditions, with the ability to easily add opencircuit protection. An external high-side bootstrap circuit drives the buck switching element at high frequencies. A low-side driver is also provided for synchronous rectifier designs. All functions are realized within a simple 8 pin DIP or SOIC package.




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