March 29, 2010
Datasheet No – PD97477
IRS2573D
HID BALLAST CONTROL IC
Datasehet
Features
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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
Product Summary
Topology
V
OFFSET
V
OUT
I
O+
, I
O-
, I
O-Buck
(typical)
Deadtime (typical)
Duty Cycle
Full-Bridge & Buck
600 V
V
CC
180mA, 260mA,
400mA
1.2 µs
50% ±1%
Package Options
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
SOIC28W
Typical Application Diagram
BUS (+)
400VDC
MBUCK
RCS
LBUCK
CBUCK
RB
DBUCK
RVSENSE1
RBB1
R1
RBB2
CBUS
RBB3
CCS
CS
VB1
RVSENSE2
1
BUCK
28
HO1
CBS1
RDHO1 DHO1
RVSENSE3
MHS1
RHO1
TIGN
LAMP
RLO1
MLS1
MLS2
MHS2
DHO2 RDHO2
2
VSB
DBS
RDB DBB
(+)
14VDC
(-)
RZX
CVCC2
CBB
VBB
27
VS1
RHO2
3
26
LO1
RLO2
4
VCC
CVCC1
COM
25
LO2
RDLO1
5
6
24
VB2
DLO1
DLO2
RDLO2
IRS2573D
23
HO2
ZX
CBS2
7
CTOFF
TOFF
22
VS2
8
CICOMP
ICOMP
21
IGN
9
CPCOMP
PCOMP
20
OV
COV
ROV
COV
ROC
RISENSE
CISENSE
MIGN
RVSENSE
RS
RIGN
DIGN
10
RIREF
CT
IREF
19
OC
11
CT
18
ISENSE
12
CTIGN
TIGN
17
16
15
VSENSE
13
CTCLK
TCLK
14
CVSENSE
RST
CIGN
BUS (-)
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© 2010 International Rectifier
IRS2573D
Table of Contents
Typical Application Diagram
Qualification Information
Absolute Maximum Ratings
Recommended Operating Conditions
Electrical Characteristics
Functional Block Diagram
Input / output Pin Equivalent Circuit Diagram
Lead Definitions
Lead Assignments
State Diagram
Application Information and Additional Details
Parameter Temperature Trends
Package Details
Package Details, Tape and Reel
Part Marking Information
Ordering Information
Page
1
4
5
6
7
10
11
12
13
14
15
23
25
26
27
28
www.irf.com
© 2009 International Rectifier
2
IRS2573D
Description
The IRS2573D is a fully-integrated, fully-protected 600V HID control IC designed to drive all types of HID lamps.
Internal circuitry provides control for ignition, warm-up, running and fault operating modes. The IRS2573D
features include ignition timing control, constant lamp power control, programmable full-bridge running frequency,
programmable over and under-voltage protection and programmable over-current protection.
Advanced
protection features such as failure of a lamp to ignite, open load, short-circuit and a programmable fault counter
have also been included in the design.
www.irf.com
© 2009 International Rectifier
3
IRS2573D
Qualification Information
Qualification Level
†
Moisture Sensitivity Level
Machine Model
ESD
Human Body Model
IC Latch-Up Test
RoHS Compliant
†
††
Industrial
††
Comments: This family of ICs has passed JEDEC’s Industrial
qualification. IR’s Consumer qualification level is granted by
extension of the higher Industrial level.
MSL3
†††
260°C
SOIC28W
(per IPC/JEDEC J-STD-020)
Class B
(per JEDEC standard JESD22-A115)
Class 2
(per EIA/JEDEC standard EIA/JESD22-A114)
Class I, Level A
(per JESD78)
Yes
Qualification standards can be found at International Rectifier’s web site
http://www.irf.com/
Higher qualification ratings may be available should the user have such requirements. Please contact
your International Rectifier sales representative for further information.
††† Higher MSL ratings may be available for the specific package types listed here. Please contact your
International Rectifier sales representative for further information.
www.irf.com
© 2009 International Rectifier
4
IRS2573D
Absolute Maximum Ratings
Absolute maximum ratings indicate sustained limits beyond which damage to the device may occur. All voltage
parameters are absolute voltages referenced to COM, all currents are defined positive into any lead. The
thermal resistance and power dissipation ratings are measured under board mounted and still air conditions.
Symbol
VB1
VB2
VBB
VS1
VS2
VSB
VHO1
VHO2
VBUCK
VLO1
VLO2
VIGN
VCS
VCT
VTIGN
VTCLK
VRST
VVSENSE
VISENSE
VOC
VOV
IOMAX
IBB
ICS
IICOMP
IPCOMP
IZX
ITOFF
ICC
IIREF
dV
S
/dt
P
D
R
ΘJA
T
J
T
S
T
L
†
Definition
High-Side Floating Supply Voltage
High-Side Floating Supply Voltage
High-Side Floating Supply Voltage
High-Side Floating Supply Offset Voltage
High-Side Floating Supply Offset Voltage
High-Side Floating Supply Offset Voltage
High-Side Floating Output Voltage
High-Side Floating Output Voltage
High-Side Floating Output Voltage
Low-Side Output Voltage
Low-Side Output Voltage
Low-Side Output Voltage
Buck Current Sense Pin Voltage
Full-Bridge Oscillator Timing Pin Voltage
Ignition Timer Pin Voltage
Fault Timer Pin Voltage
Reset Pin Voltage
Lamp Voltage Sense Pin Voltage
Lamp Current Sense Pin Voltage
Current Limitation Pin Voltage
Voltage Limitation Pin Voltage
Maximum allowable output current (HO1, HO2, BUCK,
LO1, LO2, IGN) due to external power transistor miller
effect
Buck High-side Supply Current
Buck Current Sense Pin Current
Buck Compensation Pin Current
Buck Compensation Pin Current
Buck Zero-crossing Detection Pin Current
Buck Off-time Pin Current
†
Supply current
Current Reference Pin Current
Allowable offset voltage slew rate
Package power dissipation @ T
A
≤
+25
SOIC28W
ºC
Thermal resistance, junction to ambient SOIC28W
Junction temperature
Storage temperature
Lead temperature (soldering, 10 seconds)
Min.
-0.3
-0.3
-0.3
VB1 – 25
VB2 – 25
VBB – 20
VS1 - 0.3
VS2 - 0.3
VSB - 0.3
-0.3
-0.3
-0.3
VSB - 0.3
-0.3
-0.3
-0.3
-0.3
-0.3
-0.3
-0.3
-0.3
-500
-20
-5
-5
-5
-5
-5
-20
-5
-50
---
---
-55
-55
---
Max.
625
625
625
VB1 + 0.3
VB2 + 0.3
VBB + 0.3
VB1 + 0.3
VB2 + 0.3
VBB + 0.3
VCC + 0.3
VCC + 0.3
VCC + 0.3
VBB + 0.3
VCC + 0.3
VCC + 0.3
VCC + 0.3
VCC + 0.3
VCC + 0.3
VCC + 0.3
VCC + 0.3
VCC + 0.3
500
20
5
5
5
5
5
20
5
50
1.6
78
150
150
300
Units
V
mA
V/ns
W
ºC/W
ºC
This IC contains a voltage clamp structure between the chip V
CC
and COM which has a nominal breakdown
voltage of 15.6 V. Please note that this supply pin should not be driven by a DC, low impedance power
source greater than the V
CLAMP
specified in the Electrical Characteristics section.
www.irf.com
© 2009 International Rectifier
5
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