IRS2530DSTRPBF International Rectifier, IRS2530DSTRPBF Datasheet - Page 14

• Manufacturer Part Number: IRS2530DSTRPBF
• Description: IC DIMMING BALLAST CTRL 8-SOIC
• Manufacturer: International Rectifier
• Series: DIM8™r
• Type: Ballast Controllerr

Specifications of IRS2530DSTRPBF

• Frequency: 34.2 ~ 115 kHz
• Current - Supply: 5mA
• Current - Output: 260mA
• Voltage - Supply: 12.5 V ~ 15.6 V
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 8-SOIC (3.9mm Width)
• For Use With: IRPLDIM5E - KIT DES BALLAST 4LEVEL DIM FLUORIRPLDIM4E - KIT DES BALLAST 26W IRS2530DIRPLCFL8U - KIT DES FLUOR BALLAST IRS2530D
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: IRS2530DSTRPBFTR

IRS2530D(S)
V VCO
V
VCOFLT+
4.0V
0.85V
Preheat/Ignition Mode
Dim Mode
Freq
fmax
fmin
Lamp Ignites
V LAMP
AC lamp current
V DIM
DC dim reference
Figure 3, Preheat/Ignition/Dim Mode timing diagram.
The resonant output stage transitions to a series-L, parallel-RC circuit with the Q-value and operating point
determined by the user dim level (Figure 4). If the lamp does not ignite, the voltage on pin VCO continues to
increase and the frequency continues to decrease until the VCO voltage exceeds V
(4.0V, typical) and
VCOFLT+
the IC enters Fault Mode and shuts down. The minimum frequency should be set below the high-Q
resonance frequency of the ballast output stage to ensure that the frequency ramps through resonance for
lamp ignition (Figure 4). The desired preheat time can be set by adjusting the slope of the VCO ramp with
the external capacitor, CPH.
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