IXA531
Preliminary Data Sheet
500mA 3-Phase Bridge Driver
Features
• Fully operational to +650V
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
General Description
The IXA531 is a monolithic, 3-phase, MOSFET/IGBT
gate driver consisting of three independent, high and low
side output channels. In addition to the six inputs,
which are CMOS/TTL Compatible, for the three
corresponding high side and three low side outputs,
there are dedicated lines for FAULT, ENABLE and
RESET. Overload/Short Circuit protection is
implemented by sensing a voltage across a shunt or low
value resistor which carries load current. Upon
Overload/Short Circuit detection, all outputs are
disabled. Likewise ENABLE (EN) pin, when LOW under
abnormal operating conditions, affords soft shut down of
outputs. FAULT(FLT) signal‘s status indicates that shut
down has occurred either due to Overload/Short Circuit
in driven MOSFET/IGBT or Under Voltage on VCL.
Clearing of FAULT (FLT) signal and restoration of
normal operation ensue automatically after a
programmed delay using an RC Network wired at RST
(RESET) pin. Matched propagation delays ensure
proper operation even at very high switching
frequencies. Absence of cross conduction in output
stages removes possibility of shoot through in driven
power MOSFETs or IGBTs.
Tolerant of negative transient voltages
dV/dt immune (50V/ns)
Latch-up protected over entire operating range
Fault-current shutdown for all drive outputs
User selectable delay or latching function for
clearing of the FAULT signal, independent
user controlled clearing of the FAULT signal
is also available
UVLO protection for all drive outputs
Enable signal capable of disabling all driver outputs
3 half-bridge driver pairs (independent)
3.3V logic compatible
Cross-conduction prevention logic,
220 ns - 360ns Phase leg deadtime
Peak output current: 600mA Pull-up/Source,
600mA Pull-down/Sink
Wide operating supply voltage range: 8.0V to 35V
Capacitive load drive capability: 1250pF in < 100ns
Matched, low propagation delay times
Low supply current
Monolithic construction
___
Fault monitoring is accompanied by a FLT
signal indication, with programmable reset or user
selectable latched protection
Target package power dissipation capability is 2.0W.
Full level of function available from -55°C to + 125°C
Available in 48-Lead 7mm x 7mm MLP Quad
package and 44-Lead PLCC package
Applications
•
•
•
•
•
•
Driving MOSFETs and IGBTs in half-bridge circuits
High voltage, high side and low side drivers
Motor Controls
Switch Mode Power Supplies (SMPS)
DC to DC Converters
Class D Switching Amplifiers
Ordering Information
Part
Package
IXA531S10
48L - SSLGA
IXA531L4
44L - PLCC
Warning: The IXA531 is ESD sensitive.
DS99187A(12/05)
Copyright © IXYS CORPORATION 2005
1
First Release
IXA531
Fig. 1. Single Phase Application
up to + 650 V
VCL
VCL
HIN1
HIN1
LIN1
LIN1
FLT
FLT
EN
EN
VCH1
HGO1
To
HS1
Load
IXA531
RST
UVSEL
ITRP
LGO1
LS
DG
LGO3
LIN2 HG02 LGO2 LIN3 HS3
HG03
HIN2 VCH2 HS2 HIN3
VCH3
Pin Description And Configuration
SYMBOL
FUNCTION
DESCRIPTION
HS Input
High side Input signal, TTL or CMOS compatible; HGO1,2,3 out of phase
LS Input
Low side Input signal, TTL or CMOS compatible; LGO1,2,3 out of phase
EN
Enable
Chip enable. When driven high, both outputs go low.
DG
Ground
Logic Reference Ground
VCH1,2,3
Supply Voltage
High Side Power Supply
HGO1,2,3
Output
High side driver output
HS1,2,3
Return
High side voltage return
VCL
Supply Voltage
Low side and Logic fixed power supply. This power supply provides power for
_______
HIN1,2,3
_______
LIN1,2,3
all outputs. Voltage range is from 8.0 to 35V.
LGO1,2,3
Output
Low side driver output
LS
___
FLT
Low side return
Low side driver return
Fault
Indicates Low-Side under voltage or Over Current Trip
ITRP
Trip
Input for over current shutdown
RST
Delay after trip
Externally connected RC network decide FAULT CLEAR delay.
2
3
GND
DG
LS
LGO1
HS1
ITRP
FLT
EN
FLT
EN
HGO1
UVSEL
LIN1
LIN1
VCH1
RST
VCL
HIN1
VCL
HIN1
LIN2
HIN2
LGO2
HS2
HGO2
VCH2
Fig. 2. 3-Phase Application for the IXA531.
To Load
PH1
LIN2
HIN2
up to + 650 V
PH2
To Load
LIN3
HIN3
LIN3
HIN3
IXA531S10
LGO3
HS3
HGO3
VCH3
PH3
To Load
IXA531
IXA531
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 LS. The thermal resistance and power dissipation ratings are
measured under board mounted and still air conditions
Symbol Definition
Min.
Max.
Units
VCH
High side floating supply voltage , (VCH1,2,3)
-200
650
V
VHS
VHGO
High side floating supply offset voltage , (VHS1,2,3)
VCH1,2,3 - 35
VCH1,2,3 + 0.3
V
High side floating output voltage , (VHGO1,2,3)
VHS1,2,3– 0.3
VCH1,2,3 + 0.3
V
VCL
Low side and logic fixed supply voltage
8.0
35
V
VDG
Logic Supply offset voltage
VLS - 0.7
VLS + 0.7
V
VLGO
VFLT
FAULT output voltage
VCL + 0.3
Lower of
(VDG + 35) or
(VCL + 0.3)
VCL + 0.3
V
VIN
Low side output voltage
_______ _______
Input voltage HIN1,2,3, LIN1,2,3, ITRP, RST , EN
dV/dt
Allowable offset voltage slew ratelew rate
50
V/ns
PD
Package power dissipation@ TA ≤ +25OC
2.0
W
RthJA
Thermal resistance, junction to ambient
63
K/W
TJ
Junction temperature
125
O
TS
Storage temperature
150
O
300
O
TL
- 0.3
VDG – 0.3
VDG – 0.3
-55
Lead temperature (soldering, 10 seconds)
V
V
C
C
C
Recommended Operating Conditions
For proper operation the device should be used within the recommended conditions. All voltage parameters are absolute
values referenced to LS. The VHS offset rating is tested with all supplies baised at 15V differential.
Symbol
Definition
VCH1,2,3
High side floating supply voltage
VHS1,2,3
VHGO1,2,3
High side floating supply offset voltage
VLGO1,2,3
Min.
VHS1,2,3 + 12
Max.
VHS1,2,3 + 35
Units
V
- 200
650
V
VHS1,2,3
VCH1,2,3
V
Low side output voltage
0
VCL
V
VCL
Low side and logic fixed supply voltage
12
35
V
VDG
Logic Supply offset voltage
VLS - 0.3
VLS + 0.3
V
VFLT
FAULT output voltage
VDG
VCL
V
VRST
RST input voltage
VDG
VCL
V
VITRP
ITRP input voltage
VDG
VCL
V
VDG or VLS
VCL
VIN
TA
High side floating output voltage
_______ _______
Logic input voltage HIN1,2,3, LIN1,2,3, EN
Ambient temperature
-40
4
125
V
O
C
IXA531
Static Electrical Characteristics
VBIAS (VCL, VCH1,2,3) = 15V unless otherwise specified. The VIN, VTH and IIN parameters are referenced to DG and are
applicable to all six channels . The VO and IO parameters are referenced to LS and V
and are applicable to the
HS1,2,3
respective output leads: H
and LGO1,2,3.
GO1,2,3
Symbol
Definition
Min.
Typ. Max. Units
VINL
Logic “0” input voltage HIN1,2,3; LIN1,2,3
VINH
Logic “1” input voltage HIN1,2,3; LIN1,2,3
VEN,TH+
EN positve going threshold
VEN,TH -
EN negative going threshold
0.8
VITRP, TH+
ITRP positve going threshold
0.37
VITRP, HYS
ITRP input hysteresis
.07
V
VRST,TH+
RST positive going threshold
8
V
VRST, HYS
RST input hysteresis
3
V
VOH1,2,3
High level output voltage, VCH - VHGO or VCL- VLGO
0.9
1.4
V
I0=20mA
VOL1,2,3
Low level output voltage, VHGO or VLGO
0.4
0.6
V
I0=20mA
VCLUV+
VCL supply under-voltage positive going threshold
10.6
11.1 11.6 V
VCHUV+
VCH supply under-voltage positive going threshold
10.6
11.1 11.6 V
VCLUV-
VCL supply under-voltage negaitive going threshold
10.4
10.9 11.4 V
VCHUV-
VCH supply under-voltage negaitive going threshold
10.4
10.9 11.4 V
VCLUVH
VCL supply under-voltage lockout hysteresis
0.2
V
VCHUVH
VCH supply under-voltage lockout hysteresis
0.2
V
ILK
Offset supply leakage current
IQVCH
IQVCL
Quiescent VCH supply current
0.8
3.0
Test Conditions
V
V
3.0
V
V
0.46 0.55 V
50
μA
VCH1,2,3=
VHS1,2,3=600 V
70
120
μA
VIN=0V or 5V
Quiescent VCL supply current
1.6
2.3
mA
VIN=0V or 5V
VIN
Input clamp voltage (HIN,LIN,ITRP,EN)
4.9
V
IIN = 100μA
ILIN+or IIN+
Logic “1“ Input bias current for LIN1,2,3
200
300
μA
VLIN = 5V
ILIN-or IIN-
Logic “0“ Input bias current for LIN1,2,3
100
220
μA
VLIN = 0V
IHIN+or IIN+
Logic “1“ Input bias current for HIN1,2,3
200
300
μA
VHIN = 5V
IHIN-or IIN-
Logic “0“ Input bias current for HIN1,2,3
100
220
μA
VHIN = 0V
IITRP+
“high” ITRP input bias current
30
100
μA
VITRP = 5V
IITRP-
“low” ITRP input bias current
0
1
μA
VITRP = 0V
IEN+
“high” ENABLE input bias current
30
100
μA
VEN = 5V
IEN-
“low” ENABLE input bias current
0
1
μA
VEN = 0V
IRST
RST input bias current
0
1
μA
VRST = 0Vor 15V
IGO+
Output high short circuit pulsed current
600
mA
V0=0V,PW