BRT21/BRT22/BRT23
Vishay Semiconductors
Optocoupler, Phototriac Output,
Zero Crossing
FEATURES
A
C
1
2
ZCC*
6 MT2
5
NC
• High input sensitivity I
FT
= 1.0 mA
• I
TRMS
= 300 mA
• High static dV/dt 10 000 V/µs
• Electrically insulated between input and output
circuit
• Microcomputer compatible
• Trigger current
- (I
FT
< 1.2 mA) BRT22F, BRT23F,
- (I
FT
< 2 mA) BRT21H, BRT22H, BRT23H
- (I
FT
< 3 mA) BRT21M, BRT22M, BRT23M
• Available surface mount and on on tape and reel
• Zero voltage crossing detector
• UL file E52744 system code J
• DIN EN 60747-5-5 available with option 1
• Lead (Pb)-free component
• Component in accordance to RoHS 2002/95/EC and
WEEE 2002/96/EC
NC
3
17223
4 MT1
*Zero Crossing Circuit
DESCRIPTION
The BRT21, BRT22, BRT23 product family consists of AC
switch optocouplers with zero voltage detectors with two
electrically insulated lateral power ICs which integrate a
thyrister system, a photo detector and noise suppression at
the output and an IR GaAs diode input.
High input sensitivity is achieved by using an emitter follower
phototransistor and a SCR predriver resulting in an LED
trigger current of less than 2 mA or 3 mA (DC). Inverse
parallel SCRs provide commutating dV/dt greater than
10 kV/µs.
The zero cross line voltage detection circuit consists of two
MOSFETS and a photodiode.
The BRT21/22/23 product family isolates low-voltage logic
from 120, 230, and 380 VAC lines to control resistive,
inductive or capacitive loads including motors, solenoids,
high current thyristers or TRIAC and relays.
APPLICATIONS
• Industrial controls
• Office equipment
• Consumer appliances
ORDER INFORMATION
PART
BRT21H
BRT21M
BRT22F
BRT22H
BRT22M
BRT23F
BRT23H
BRT23M
BRT21H-X006
BRT21H-X007
BRT21M-X006
BRT22F-X006
BRT22H-X007
BRT22M-X006
BRT23F-X006
BRT23F-X007
BRT23H-X006
BRT23H-X007
BRT23M-X006
BRT23M-X007
Note
For additional information on the available options refer to option information.
Document Number: 83690
Rev. 1.5, 07-May-08
For technical questions, contact: optocouplers.answers@vishay.com
www.vishay.com
193
REMARKS
V
DRM
≤
400 V, DIP-6, I
FT
= 2.0 mA
V
DRM
≤
400 V, DIP-6, I
FT
= 3.0 mA
V
DRM
≤
600 V, DIP-6, I
FT
= 1.2 mA
V
DRM
≤
600 V, DIP-6, I
FT
= 2.0 mA
V
DRM
≤
600 V, DIP-6, I
FT
= 3.0 mA
V
DRM
≤
800 V, DIP-6, I
FT
= 1.2 mA
V
DRM
≤
800 V, DIP-6, I
FT
= 2.0 mA
V
DRM
≤
800 V, DIP-6, I
FT
= 3.0 mA
V
DRM
≤
400 V, DIP-6 400 mil (option 6), I
FT
= 2.0 mA
V
DRM
≤
400 V, SMD-6 (option 7), I
FT
= 2.0 mA
V
DRM
≤
400 V, DIP-6 400 mil (option 6), I
FT
= 3.0 mA
V
DRM
≤
600 V, SMD-6 (option 7), I
FT
= 1.2 mA
V
DRM
≤
600 V, SMD-6 (option 7), I
FT
= 2.0 mA
V
DRM
≤
600 V, DIP-6 400 mil (option 6), I
FT
= 3.0 mA
V
DRM
≤
800 V, DIP-6 400 mil (option 6), I
FT
= 1.2 mA
V
DRM
≤
800 V, DIP-6 400 mil (option 6), I
FT
= 1.2 mA
V
DRM
≤
800 V, DIP-6 400 mil (option 6), I
FT
= 2.0 mA
V
DRM
≤
800 V, SMD-6 (option 7), I
FT
= 2.0 mA
V
DRM
≤
800 V, DIP-6 400 mil (option 6), I
FT
= 3.0 mA
V
DRM
≤
800 V, SMD-6 (option 7), I
FT
= 3.0 mA
BRT21/BRT22/BRT23
Vishay Semiconductors
Optocoupler, Phototriac Output,
Zero Crossing
(1)
ABSOLUTE MAXIMUM RATINGS
PARAMETER
INPUT
Reverse voltage
Forward current
Surge current
Power dissipation
Derate from 25 °C
OUTPUT
TEST CONDITION
I
R
= 10 µA
PART
SYMBOL
V
R
I
F
I
FSM
P
diss
VALUE
6.0
60
2.5
100
1.33
UNIT
V
mA
A
mW
mW/°C
V
V
V
mA
A
mW
mW/°C
BRT21
Peak off-state voltage
RMS on-state current
Single cycle surge current
Power dissipation
Derate from 25 °C
COUPLER
Isolation test voltage
(between emitter and detector, climate
per DIN 500414, part 2, Nov. 74)
Pollution degree (DIN VDE 0109)
Creepage distance
Clearance distance
Comparative tracking index per
DIN IEC 112/VDE 0303 part 1,
group IIIa per DIN VDE 6110
Isolation resistance
Storage temperature range
Ambient temperature range
Soldering temperature
(2)
max.
≤
10 s dip soldering
≥
0.5 mm from case bottom
V
IO
= 500 V, T
amb
= 25 °C
V
IO
= 500 V, T
amb
= 100 °C
t = 1.0 min
I
D(RMS)
= 70 µA
BRT22
BRT23
V
DM
V
DM
V
DM
I
TM
P
diss
400
600
800
300
3.0
600
6.6
V
ISO
5300
2
≥
7.0
≥
7.0
V
RMS
mm
mm
CTI
R
IO
R
IO
T
stg
T
amb
T
sld
≥
175
≥
10
12
≥
10
11
- 40 to + 100
- 40 to + 100
260
Ω
Ω
°C
°C
°C
Notes
(1)
T
amb
= 25 °C, unless otherwise specified.
Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. Functional operation of the device is not
implied at these or any other conditions in excess of those given in the operational sections of this document. Exposure to absolute maximum
ratings for extended periods of the time can adversely affect reliability.
(2)
Refer to reflow profile for soldering conditions for surface mounted devices (SMD). Refer to wave profile for soldering conditions for through
hole devices (DIP).
ELECTRICAL CHARACTERISTICS
PARAMETER
INPUT
Forward voltage
Reverse current
Capacitance
Thermal resistance, junction to
ambient
I
F
= 10 mA
V
R
= 6 V
f = 1 MHz, V
F
= 0 V
V
F
I
R
C
O
R
thJA
1.16
0.1
25
750
1.35
10
V
µA
pF
K/W
TEST CONDITION
SYMBOL
MIN.
TYP.
MAX.
UNIT
www.vishay.com
194
For technical questions, contact: optocouplers.answers@vishay.com
Document Number: 83690
Rev. 1.5, 07-May-08
BRT21/BRT22/BRT23
Optocoupler, Phototriac Output,
Zero Crossing
ELECTRICAL CHARACTERISTICS
PARAMETER
OUTPUT
Off-state voltage
Repetitive peak off-state voltage
Off-state current
On-state voltage
On-state current
Surge (non-repetitive),
on-state current
Trigger current temp. gradient
Inhibit voltage temp. gradient
Off-state current in inhibit state
Holding current
Latching current
Zero cross inhibit voltage
Turn-on time
Turn-off time
Critical rate of rise of off-state
voltage
Critical rate of rise of voltage at
current commutation
Critical rate of rise of on-state
Thermal resistance, junction to
ambient
COUPLER
Critical rate of rise of coupled
input/output voltage
Common mode coupling
capacitance
Capacitance (input to output)
Isolation resistance
f = 1.0 MHz, V
IO
= 0 V
V
IO
= 500 V, T
amb
= 25 °C
V
IO
= 500 V, T
amb
= 100 °C
V
D
= 5.0 V, F - versions
Trigger current
V
D
= 5.0 V, H - versions
V
D
= 5.0 V, M - versions
I
T
= 0 A, V
RM
= V
DM
= V
D(RMS)
dV
IO
/dt
C
CM
C
IO
R
is
R
is
I
FT
I
FT
I
FT
≥
10000
0.01
0.8
10
12
1.2
2.0
3.0
≥
10
11
V/µs
pF
pF
Ω
Ω
mA
mA
mA
V
T
= 2.2 V
I
F
= rated I
FT
V
RM
= V
DM
= V
D(RMS)
PF = 1.0, I
T
= 300 mA
V
D
= 0.67 V
DRM
, T
j
= 25 °C
V
D
= 0.67 V
DRM
, T
j
= 80 °C
V
D
= 0.67 V
DRM
,
dI/dt
crq
≤
15 A/ms, T
j
= 25 °C
V
D
= 0.67 V
DRM
,
dI/dt
crq
≤
15 A/ms, T
j
= 80 °C
I
F
= I
FT1
, V
DRM
I
D(RMS)
= 70 µA
I
DRM
= 100 µA
V
D
= V
DRM
, T
amb
= 100 °C,
I
F
= 0 mA
I
T
= 300 mA
PF = 1.0, V
T(RMS)
= 1.7 V
f = 50 Hz
V
D(RMS)
V
DRM
I
D(RMS)
V
TM
I
TM
I
TSM
ΔI
FT1
/ΔT
j
ΔI
FT2
/ΔT
j
ΔV
DINH
/ΔT
j
I
DINH
I
H
I
L
V
IH
t
on
t
off
dV/dt
cr
dV/dt
cr
dV/dt
crq
dV/dt
crq
dI/dt
cr
R
thJA
10000
5000
10000
5000
8.0
125
7.0
7.0
- 20
50
65
5.0
15
35
50
25
200
500
424
600
10
1.7
100
3.0
300
3.0
14
14
460
V
V
µA
V
mA
A
µA/K
µA/K
mV/K
µA
µA
mA
V
µs
µs
V/µs
V/µs
V/µs
V/µs
A/µs
K/W
TEST CONDITION
SYMBOL
MIN.
TYP.
MAX.
UNIT
Vishay Semiconductors
Note
T
amb
= 25 °C, unless otherwise specified.
Minimum and maximum values are testing requirements. Typical values are characteristics of the device and are the result of engineering
evaluation. Typical values are for information only and are not part of the testing requirements.
Document Number: 83690
Rev. 1.5, 07-May-08
For technical questions, contact: optocouplers.answers@vishay.com
www.vishay.com
195
BRT21/BRT22/BRT23
Vishay Semiconductors
Optocoupler, Phototriac Output,
Zero Crossing
SAFETY AND INSULATION RATINGS
PARAMETER
Climatic classification
(according to IEC 68 part 1)
Comparative tracking index
V
IOTM
V
IORM
P
SO
I
SI
T
SI
Creepage distance
Clearance distance
Creepage distance
Clearance distance
standard DIP-6
standard DIP-6
400 mil DIP-6
400 mil DIP-6
7
7
8
8
CTI
175
6000
630
200
400
175
TEST CONDITION
SYMBOL
MIN.
TYP.
40/100/21
399
V
V
mW
mA
°C
mm
mm
mm
mm
MAX.
UNIT
Note
As per IEC 60747-5-2, § 7.4.3.8.1, this optocoupler is suitable for "safe electrical insulation" only within the safety ratings. Compliance with the
safety ratings shall be ensured by means of protective circuits.
POWER FACTOR CONSIDERATIONS
A snubber is not needed to eliminate false operation of the
TRIAC driver because of the high static and commutating
dV/dt with loads between 1.0 and 0.8 power factors. When
inductive loads with power factors less than 0.8 are being
driven, include a RC snubber or a single capacitor directly
across the device to damp the peak commutating dV/dt
spike. Normally a commutating dV/dt causes a turning-off
device to stay on due to the stored energy remaining in the
turning-off device.
But in the case of a zero voltage crossing optotriac, the
commutating dV/dt spikes can inhibit one half of the TRIAC
from turning on. If the spike potential exceeds the inhibit
voltage of the zero cross detection circuit, half of the TRIAC
will be heldoff and not turn-on. This hold-off condition can be
eliminated by using a snubber or capacitor placed directly
across the optotriac as shown in Figure 1. Note that the value
of the capacitor increases as a function of the load current.
The hold-off condition also can be eliminated by providing a
higher level of LED drive current. The higher LED drive
provides a larger photocurrent which causes the
phototransistor to turn-on before the commutating spike has
activated the zero cross network. Figure 2 shows the
relationship of the LED drive for power factors of less than
1.0. The curve shows that if a device requires 1.5 mA for a
resistive load, then 1.8 times 2.7 mA) that amount would be
required to control an inductive load whose power factor is
less than 0.3.
1
C
s
(µF) = 0.0032 (µF)*10^0.0066 I
L
(mA)
C
s
- Shunt Capacitance (µF)
0.1
0.01
Ta = 25 °C, PF = 0.3
IF = 2.0 mA
0.001
0
iil410_01
50
100 150 200 250 300 350 400
I
L
- Load Current (mA) (RMS)
Fig. 1 - Shunt Capacitance vs. Load Current
www.vishay.com
196
For technical questions, contact: optocouplers.answers@vishay.com
Document Number: 83690
Rev. 1.5, 07-May-08
BRT21/BRT22/BRT23
Optocoupler, Phototriac Output,
Zero Crossing
TYPICAL CHARACTERISTICS
T
amb
= 25 °C, unless otherwise specified
Vishay Semiconductors
2.0
150
NI
Fth
-
Normalized
LED
Trigger Current
1.8
1.6
1.4
1.2
1.0
0.8
0.0
LED - LED Power (mW)
I
Fth
Normalized
to I
Fth
at PF = 1.0
Ta = 25 °C
100
50
0.2
0.4
0.6
0.8
1.0
1.2
0
- 60 - 40 - 20
iil410_05
0
20
40
60
80
100
iil410_02
PF - Power Factor
T
a
- Ambient Temperature (°C)
Fig. 2 - Normalized LED Trigger Current vs. Power Factor
Fig. 5 - Maximum LED Power Dissipation
1.4
10
3
5
Ta = - 55 °C
T
j
= 25 °C
100 °C
V
F
- Forward
Voltage
(V)
1.3
1.2
1.1
1.0
0.9
0.8
0.7
0.1
I
T
(mA)
10
2
5
Ta = 25 °C
I
T
= f(V
T
),
Parameter: T
j
Ta =
85
°C
10
1
5
10
0
1
10
100
iil410_06
0
1
2
3
4
iil410_03
I
F
- Forward Current (mA)
V
T
(V)
Fig. 3 - Forward Voltage vs. Forward Current
Fig. 6 - Typical Output Characteristics
10000
If(pk) - Peak LED Current (mA)
τ
Duty Factor
1000
0.005
0.01
0.02
0.05
0.1
0.2
0.5
t
DF =
τ
/t
400
I
TRMS
= f(VT),
R
thJA
= 150 K/W
Device switch
soldered in pcb
or
base
plate.
I
TRMS
(mA)
10
1
300
200
100
100
10
10
-6
10
-5
10
-4
10
-3
10
-2
10
-1
10
0
iil410_04
0
0
iil410_07
20
40
60
80
100
t - LED Pulse Duration (s)
T
A
(°C)
Fig. 7 - Current Reduction
Fig. 4 - Peak LED Current vs. Duty Factor, Tau
Document Number: 83690
Rev. 1.5, 07-May-08
For technical questions, contact: optocouplers.answers@vishay.com
www.vishay.com
197
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