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IR21591(S)

Features: • Ballast control and half-bridge driver in one IC• Transformer-less lamp power sensing• Closed-loop lamp power control• Closed-loop preheat current control• Programmable preheat time• Programmable preheat current• Programmable ignition-to-dim ti...

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SeekIC No. : 004376117 Detail

IR21591(S): Features: • Ballast control and half-bridge driver in one IC• Transformer-less lamp power sensing• Closed-loop lamp power control• Closed-loop preheat current control• ...

IR21591(S) Data Sheet

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Part Number:
IR21591(S)
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: 2024/12/21

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Product Details

Description



Features:

• Ballast control and half-bridge driver in one IC
• Transformer-less lamp power sensing
• Closed-loop lamp power control
• Closed-loop preheat current control
• Programmable preheat time
• Programmable preheat current
• Programmable ignition-to-dim time
• 0.5 to 5VDC dimming control input
• Min and max lamp power adjustments
• Programmable minimum frequency
• Internal current sense blanking
• Full lamp fault protection
• Brown-out protection
• Automatic restart
• Micro-power startup
• Zener clamped Vcc
• Over-temperature protection
• 16-pin DIP and SOIC package types


Pinout

Connection Diagram


Specifications

Symbol
Definition
Min.
Max.
Units
VB
High side floating supply voltage
-0.3
625
V
VS
High side floating supply offset voltage
VB - 25
VB + 25
VHO
High side floating output voltage
VS - 0.3
VB + 0.3
VLO
Low side output voltage
-0.3
VCC + 0.3
IOMAX

Maximum allowable output current (either output)

due to external power transistor miller effect
-500
500
mA
VVCO
Voltage controlled oscillator input voltage
-0.3
6.0
v
ICPH
CPH current
-5
5
mA
VIPH
IPH voltage
-0.3
5.5
V
VDIM
Dimming control pin input voltage
-0.3
5.5
VMAX
Maximum lamp power setting pin input voltage
-0.3
5.5
VMIN
Minimum lamp power setting pin input voltage
-0.3
5.5
VCS
Current sense input voltage
-0.3
5.5
ISD
Shutdown pin current
-5
2
mA
ICC
Supply current (note 1)
25
dV/dt
Allowable offset voltage slew rate
-50
50
V/ns
PD
Package power dissipation @ TA +25°C
(16 pin DIP)
1.60
mA
PD = (TJMAX-TA)/RthJA
(16 pin SOIC)
1.25
RthJA
Thermal resistance, junction to ambient
(16 pin DIP)
75
oC/W
(16 pin SOIC)
115
TJ
-55
150
Ts
-55
150
oC
TL
300



Description

Description: The IR21591(S) are complete dimming ballast controllers and 600V half-bridge drivers all in one IC. The architecture of the IR21591(S) includes phase control for transformer- less lamp power sensing and regulation which minimizes changes needed to adapt non-dimming ballasts for dimming. Externally programmable features such as preheat time and current, ignition-to-dim time, and a complete dimming interface with minimum and maximum settings provide a high degree of flexibility for the ballast design engineer. Protection from failure of a lamp to strike, filament failures, thermal overload, or lamp failure during normal operation, as well as an automatic restart function, have been included in the design. The heart of this control IC is a voltagecontrolled oscillator with externally programmable minimum frequency. The IR21591(S) are available in both 16 pin DIP and 16 pin narrow body SOIC packages.




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