IRS2530D Datasheet, PDF (1/23 Pages) International Rectifier – DIM8TM DIMMING BALLAST CONTROL IC

July 09, 2008
IRS2530D(S)
DIM8^TM DIMMING BALLAST CONTROL IC
IC Features
• Dimming ballast control plus half-bridge driver
• Closed-loop lamp current dimming control
• Internal non-ZVS protection
• Internal crest factor protection
• Programmable preheat time
• Fixed dead-time (2.0μs typ.)
• Lamp insert auto-restart
• Internal bootstrap MOSFET
• Internal 15.6V zener clamp diode on Vcc
• Micropower startup (250μA)
• Latch immunity and ESD protection
Product Summary
Topology
V_OFFSET
V_OUT
I_O+ & I_O- (typical)
Deadtime (typical)
Package Types
Half-Bridge
600 V
V_CC
180mA & 260mA
2.0μs
Ballast System Features
• Single chip dimming solution
• Simple lamp current dimming control method
• Single lamp current sensing resistor required
• No half-bridge current-sensing resistor required
• No external protection circuits required (fully
PDIP8
SO8
internal)
• Flash-free lamp start at all dimming levels
• Large reduction in component count
• Easy to use for fast design cycle time
• Increased manufacturability and reliability
Typical applications
• Linear dimming ballast (down to 10%)
• 3-way dimming ballast
Typical Connection Diagram
• Multi-level switch dimming ballast
F1
L
AC
LINE
INPUT
N
(+)
1-10V
DIM
INPUT
(-)
LF
BR1
RVCC1
RVCC2
RLIM1
RLIM2 VCC
CF
CBUS
1
CVCC1
CVCC2
CDIM
CVCO
COM
2
DIM
3
VCO
4
VB
8
HO
7
VS
6
LO
5
RHO
CBS
RLO
MHS
MLS
RDIM1
CPH RVCO
CFB
RFB
RLMP1
RDIM2
LRES:A
CDC
CSNUB
DCP2
RLMP2
CRES
DCP1
LRES:B
CH1
SPIRAL
CFL LAMP
CH2
LRES:C
RCS
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© 2008 International Rectifier
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