IRS2573DSPBF_15 Datasheet, PDF (1/28 Pages) International Rectifier – HID BALLAST CONTROL IC

March 29, 2010
Datasheet No – PD97477
Datasehet
Features
• Buck, full-bridge and lamp control in one IC
• ^{Continuous/critical-conduction mode buck control}
• ^{600V high and low-side full-bridge driver}
• ^{600V high-side buck Driver}
• Low-side ignition FET gate driver
• Integrated bootstrap FETs for full-bridge high-side drivers
• Constant lamp power control
• Programmable buck cycle-by-cycle over-current protection
• Programmable buck output voltage limitation
• Programmable lamp current limitation
• Programmable full-bridge frequency
• Fault latch reset input
• Programmable ignition counter (21sec/64sec typical)
• Programmable lamp under-voltage fault counter
(197sec typical) for short-circuit or lamp does not warm-up
• Fast transient lamp under-voltage event counter
(16384 typical) for arc instability or end-of-life
• Programmable lamp over-voltage fault counter
(787sec typical) for open-circuit or lamp extinguishes
• Programmable good fault reset counter (2730sec typical)
• Micro-controller compatible timing thresholds
• Internal 15.6V zener clamp diode on VCC
• Micropower startup (150µA)
• Latch immunity and ESD protection on all pins
Typical Application Diagram
IRS2573D
HID BALLAST CONTROL IC
Product Summary
Topology
Full-Bridge & Buck
V_OFFSET
V_OUT
I_O+, I_O-, I_O-Buck
(typical)
Deadtime (typical)
Duty Cycle
600 V
V_CC
180mA, 260mA,
400mA
1.2 µs
50% ±1%
Package Options
SOIC28W
400VDC
BUS (+)
MBUCK RCS
RB
DBUCK
LBUCK
CBUCK
RVSENSE1
CBUS
RBB1
RBB2
RBB3
(+)
14VDC
(-)
R1
CS
1
CCS
BUCK
2
VSB
DBS
3
CBB
VBB
RDB DBB
4
VCC
CVCC2
5
CVCC1
COM
6
RZX
ZX
7
CTOFF
TOFF
8
CICOMP
ICOMP
9
CPCOMP PCOMP
10
RIREF
IREF
11
CT
CT
12
CTIGN
TIGN
13
CTCLK
TCLK
14
VB1
28
HO1
27
VS1
26
RDHO1 DHO1
CBS1
RHO1
MHS1
LO1
25
RLO1
MLS1
LO2
24
RDLO1
DLO1
VB2
23
HO2
22
CBS2
VS2
21
IGN
20
OV
19
OC
18
COV
ROV
COV
ROC
ISENSE
17
RISENSE
VSENSE
CISENSE
16
CVSENSE
RST
15
RVSENSE
RS
RVSENSE2
RVSENSE3
TIGN
RIGN
MIGN
LAMP
MHS2
MLS2
DHO2 _RDHO2
RHO2
RLO2
DLO2 RDLO2
DIGN
CIGN
BUS (-)
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