IRS2552DSTRPBF International Rectifier, IRS2552DSTRPBF Datasheet - Page 15

• Manufacturer Part Number: IRS2552DSTRPBF
• Description: IC BALLAST CTLR CCFL/EEFL 16SOIC
• Manufacturer: International Rectifier
• Type: CCFL/EEFL Controllerr

Specifications of IRS2552DSTRPBF

• Frequency: 39 ~ 69 kHz
• Current - Supply: 10mA
• Current - Output: 450mA
• Voltage - Supply: 10.6 V ~ 15.6 V
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 16-SOIC (3.9mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: IRS2552DSTRPBFTR

Application Information and Additional Details
Information regarding the following topics is included as subsections within this section of the datasheet.
IGBT/MOSFET Gate Drive
The IRS2552D HVICs are designed to drive up to two MOSFET or IGBT power devices. Figures 1 and 2 illustrate
several parameters associated with the gate drive functionality of the HVIC. The output current of the HVIC, used to
drive the gate of the power switch, is defined as I
defined as V
generically called V
Undervoltage Lock-Out
The IRS2552D includes an under voltage lockout circuit such that it remains in micro-power mode until the
voltage at VCC pin exceeds the V
oscillator starts up and gate drive signals appear at the LO and HO outputs, provided the ENABLE pin is
connected to a voltage source above V
bootstrap capacitor before the IRS2552D begins normal operation.
www.irf.com
•
•
•
•
•
•
•
•
•
•
•
•
IGBT/MOSFET Gate Drive
Undervoltage Lockout Protection
Oscillator
Deadtime
Ignition
Run Mode
Lamp Current Control
Frequency, Current and Deadtime Calculation
Dimming Function
Soft Start
PCB Layout Tips
Additional Documentation
Figure 1: HVIC sourcing current
(or COM)
HO
(or V
(or LO)
V
HO
for the high-side power switch and V
V
S
B
CC
OUT
)
+
and in this case does not differentiate between the high-side or low-side output voltage.
V
-
HO
(or V
LO
I
O+
)
CCUV+
ENATH
threshold. When V
. The LO output will always go high first in order to pre-charge the
O
. The voltage that drives the gate of the external power switch is
LO
for the low-side power switch; this parameter is sometimes
15
CC
exceeds the V
Figure 2: HVIC sinking current
CCUV+
threshold the IRS2552D
© 2009 International Rectifier
IRS2552D