HYBRID IC

VLA526A-06ARHybrid IC for driving IGBT modules

DESCRIPTION
The VLA526A-06AR is the 6-element gate driver for aDimensions: mm

OUTLINE DRAWING400VAC 3 phase inverter. 3 circuits of high side are isolated
Mark

88.0MAXbetween input and output and the power supplies consist of theinside. This Hybrid IC can be driven by input voltage of 2 lines

41.5MAX(+15V and +5V). By connecting the resistor for current detection
between B-N, this Hybrid IC can detect an over-current, and cancut off each gate signal.

can realize the optimum inverter drive.

0.25+0.2/-0.1

4.0MAX

9.5MAX

0.5 +0.15/-0.1

Recommended IGBT module: VCES=1200V/ up to 25A class

2.54
7.5MAX

7.5MAX

30FEATURES

3.5+/-0.7

The low side of an input part has a timing revision circuit thatcan revise time lag with the signal of high side and this hybrid IC1•Supply voltage ···································+5V, +15V
•High side isolation voltage············· 2500Vrms, for 1 min•The power supply for a high side gate drive and the electrolysis capacitor for voltage compensation are unnecessary.
•SIL structure, 6-circuit driver built-in, it saves area on mother board.
•Recommended switching frequency range is up to 3kHz.

APPLICATIONSIGBT drive for 3 phase inverter etc.
BLOCK DIAGRAM

UP 19

VP 20

WP 21

Oscillator

Oscillator

Oscillator

UN 22

Timing revision
circuitVN 23

Timing revision
circuitWN 24

Timing revision
circuit

BufferBufferComparator
withhysteresis

Drive
circuit

1 UPG

Comparator
withhysteresis

Drivecircuit

6 VPG

Comparator
withhysteresis

Drivecircuit

2 UPS

7 VPS
11 WPG
12 WPS

BufferDrivecircuit

16 UNG

Drivecircuit

17 VNG

Drivecircuit

18 WNG
27 GND2FO 25
4.7uF

CIN 26Timer

30

2928

VCC1VCC2GND

13.0MAXHYBRID IC

VLA526A-06AR
Hybrid IC for driving IGBT modules

MAXIMUM RATINGS (unless otherwise noted, Ta=25°C)
SymbolParameter

Conditions

Ratings

Unit

VCC1

Input voltage 1DC, between pins 30 and 28-0.3 ~ 18

V

VCC2

Input voltage 2DC, between pins 29 and 28-0.5 ~ 5.5

V

Input/Error signal voltage

Between pins 19, 20, 21, 22, 23, 24, 26 and 28-0.5 ~ +6V

2500

Vrms

2500

Vrms

95°C

Vin, VCIN
Viso1

Isolation voltage1

Viso2

Isolation voltage2

AC, 1min, R.H.<50%.
Between input and output of high side.
AC, 1min, R.H.<50%.
Between each high side output.

TC

Case temperature—Topr

Operating temperature

No condensation-20 ~ +70°C

Tstg

Storage temperature

No condensation-25 ~ +100°C

ELECTRICAL CHARACTERISTICS(Unless otherwise noted, Ta=25°C, VCC1 = 15V, VCC2= 5V, f = 3kHz, D.F. = 50%, CL = 0.01µF)

ItemSymbol

Conditions

Limits
MinTypMax

Unit

VCC1

Input voltage 1

Recommended range

14.5

15.0

17.0

VVCC2

Input voltage 2

Recommended range

4.75

5.0

5.25

VfSwitching frequency

Recommended range——3kHzVOH“H” output voltage

Vin: “L” and FO: “H”, IO = 0A

13.5

14.5

18V

VOL

“L” output voltage

Vin: “H or FO: “L, IO = 0A

—

0.6

1.4

VtPLHp

0.75

2.2

—µs

“L-H” Propagation time: high side (*)

Vin: “L” and FO: “H”, output opentPHLp“H-L” Propagation time: high side (*)

Vin: “H” or FO: “L”, output open

—

1.7

2.6µs

trp

“L-H” Rise time: high side

Vin: “L” and FO: “H”

1.12.5—µstfp“H-L” Fall time: high side

Vin: “H” or FO: “L”

—

0.8

1.4

µs

tPLHn

“L-H” Propagation time: low side

Vin: “L” and FO: “H”, output open

0.4

0.7

—

µs

tPHLn

“H-L” Propagation time: low side

Vin: “H” or FO: “L”, output open—

0.9

1.4µstrn“L-H” Rise time: low side

Vin: “L” and FO: “H”

1

1.6

—

µstfn

“H-L” Fall time: low side

Vin: “H” or FO: “L”—

0.4

0.8µstp

Minimum off-pulse width

—

4

—

—

µs

RG(on)pInside gate resistor 1

turn-on, ”H”output, high side

—

20

—

ΩRG(off)pΩ

Inside gate resistor 2

turn-off, “L” output, high side

—

10

—

RG(on)nInside gate resistor 3

turn-on, ”H”output, low side

—

33

—

ΩRG(off)nInside gate resistor 4

turn-off, “L” output, low side

—

15—

ΩVFOH

“H” level FO output voltage

Normal mode——VCC2VVFOL“L” level FO output voltage

Short-circuit protection operation mode

—0.20.8

VSet time for timer

Pin 26 ≤ 0.5V—

1.05.1µs70——µstdttimer

Timer

Maintenance time of protection mode,
The period of FO output “L”. td≥6.5µs.

(*) The time is td + tPHL to cut off gate output after reaching VCIN < 0.5V.

2

HYBRID IC

VLA526A-06AR
Hybrid IC for driving IGBT modules

DIFINITION OF CHARACTERISTICS(1) Normal switching mode

(2) Protection operation mode

Vin

VCIN

50%

VCC23V
tr

VO
VOHt

0.5V

tf

VFO

90%td

tPHL
t

50%tPLHttimer

VO

10%

VOL

50%tPHLt

APPLICATION CIRCUIT

WPG
WPS
WNG

VPG
VPS
VNG

GND2

UPG
UPS
UNG

Over-current
detection
circuit

CIN
+15V
+5V
0V

VLA526A-06AR

3UP

UP

VP

VP

WP

WP

UN

UN

VN

VN

WN

WN

FO

FO

CPU Control circuit

M+~HYBRID IC

VLA526A-06AR

S
T+

29
VCC219UP

20

VP

21WP

22UN

23VN

24

WN

25

VLA526A-06AR

R

30
VCC1Hybrid IC for driving IGBT modules

FOUPG

1UPS

2VPG

6VPS

7WPG

11WPS

12UNG

16VNG

1728 GND1UVWWNG 18CIN

GND22726+Over-current
detection
circuit

RSHCPU4HYBRID IC

VLA526A-06AR
Hybrid IC for driving IGBT modules

PROTECTION OPERATION MODE
This Hybrid IC has the protection operation function, and it works by detecting the both-ends voltage of the current detection resistor (Rs)that is connected between the inverter and converter. (Refer to the following figure)Specifically, in following procedure, this Hybrid IC suspends the all gate output for timer time when unusual. Detection of the voltage
generated by unusual current (Ierror) which flows resistor (Rs) when unusual, such as a short-circuit in an inverter main circuit etc. (Rs •Ierror) The detection voltage and the standard voltage (Voc) are compared, and when unusual, the circuit that outputs “L” is constituted andthat output is connected to pin 26 of this Hybrid IC.
In addition, protection operation is started only when unusual output “L” is held for 5.1µs (max: set time of timer), and by the time it starts
protection operation there is delay time for max 7.7µs. Moreover, according the current sink capability of a comparator, set time of timer may
become long. The length of the timer time in the protection operation mode changes according to unusual judging time, and timer time also
becomes longer as an unusual period excels.

(Cautions)

As the comparator for over-current detection, it must be open-collector type.

In case of a totem-pole type comparator, a timer circuit becomes invalid.

COMRs

Over-current
detection circuit

VLA526A-06AR
Protection circuit

The comparator forover-current detection-26+Voc28

An example for external circuit to detect over current

5TimerHYBRID IC

VLA526A-06AR
Hybrid IC for driving IGBT modules
FOR SAFETY USINGGreat detail and careful attention are given to the production activity of Hics, such as the development, the quality of production,and in its reliability. However the reliability of Hics depends not only on their own factors but also in their condition of usage.
When handling Hics, please note the following cautions.
CAUTIONS
Packing

The materials used in packing Hics can only withstand normal external conditions.
When exposed to outside shocks, rain and certain environmental contaminators, the packing
materials will deteriorates. Please take care in handling.

Carrying

1)
2)
3)
4)
5)

Storage

When storing Hics, please observe the following notices or possible deterioration of their electricalcharacteristics, risk of solderability, and external damage may occur.
1) Devices must be stored where fluctuation of temperature and humidity is minimal, and mustnot be exposed to direct sunlight. Store at the normal temperature of 5 to 30 degrees Celsius
with humidity at 40 to 60%.
2) Avoid locations where corrosive gasses are generated or where much dust accumulates.
3) Storage cases must be static proof.
4) Avoid putting weight on boxes.

Extended storage

When extended storage is necessary, Hics must be kept non-processed. When using Hics whichhave been stored for more than one year or under severe conditions, be sure to check that theexterior is free from flaw and other damages.

Maximum ratings

To prevent any electrical damages, use Hics within the maximum ratings.
current, voltage, etc. must not exceed these conditions.

Polarity

To protect Hics from destruction and deterioration due to wrong insertion, make sure of polarity ininserting leads into the board holes, conforming to the external view for the terminal arrangement.

Don’t stack boxes too high. Avoid placing heavy materials on boxes.
Boxes must be positioned correctly during transportation to avoid breakage.
Don't throw or drop boxes.
Keep boxes dry. Avoid rain or snow.
Minimal vibration and shock during transportation is desirable.

The temperaqture,

Keep safety first in your circuit designs!
・ISAHAYA Electronics Corporation puts the maximum effort into making semiconductor products better and more reliable,
but there is always the possibility that trouble may occur with them. Trouble with semiconductors may lead to personal
injury, fire or property damage. Remember to give due consideration to safety when making your circuit designs, withappropreatemeasures such as (1)placement of substitutive, auxiliary, (2)use of non-frammable material or (3)prevention
against any malfunction or mishap.
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ISAHAYA or third party.
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originating in the use of any product data, diagrams, charts or circuit application examples contained in these materials
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Power Module Division

6Jan.2012