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TMMDB3

P1-P3P4-P4
1/4
TMMDB3
®
March 2001 - Ed: 3A
DIAC
MINIMELF
■
V
BO
: 32V
■
Breakover voltage range: 28 to 36V
FEATURES
Functioning as a trigger diode with a fixed voltage
reference, the TMMDB3 can be used in conjunc-
tion with triacs for simplified gate control circuits
or as a starting element in fluorescent lamp bal-
lasts.
DESCRIPTION
Symbol Parameter Value Unit
I
TRM
Repetitive peak on-state current
tp=20µs F= 120 Hz
2A
Tstg
Tj
Storage temperature range
Operating junction temperature range
-40to+125 °C
ABSOLUTE MAXIMUM RATINGS (limiting values)
TMMDB3
2/4
Symbol Parameter Test Conditions Value Unit
V
BO
Breakover voltage * C = 22nF ** MIN. 28 V
TYP. 32
MAX. 36
IV
BO1
-V
BO2
I Breakover voltage
symmetry
C = 22nF ** MAX. ± 3 V
∆ V Dynamic breakover
voltage *
V
BO
and V
F
at
10mA
MIN. 5 V
V
O
Output voltage * see diagram 2
(R=20Ω)
MIN. 5 V
I
BO
Breakover current * C = 22nF ** MAX. 50 µA
tr Rise time * see diagram 3 MAX. 2 µs
I
R
Leakage current * V
R
= 0.5 V
BO
max MAX. 10 µA
* Applicable to both forward and reverse directions.
** Connected in parallel to the device.
ELECTRICAL CHARACTERISTICS (Tj = 25°C unless otherwise specified)
TMM DB 3
Breakover voltage
3: V typ = 32V
BO
Diac Series
MINIMELF
ORDERING INFORMATION
Part Number Marking Weight Base Quantity Packing Mode
TMMDB3 (None)
0.04 g 2500 Tape & Reel
OTHER INFORMATION
TMMDB3
3/4
10mA
I
BO
I
R
-V + V
+I
F
-I
F
0,5 V
BO
V
BO
V
V
F
Diagram 1: Voltage - current characteristic curve.
D.U.T
Vo
C=0.1µF
220 V
50 Hz
500 kΩ10 kΩ
R=20 Ω
I
P
Rs=0
T410
Diagram 2: Test circuit.
90 %
l
p
10 %
t
r
Diagram 3: Rise time measurement.
25 50 75 100 125
1.08
1.06
1.04
1.02
1.00
VBO [Tj]
VBO [Tj = 25°C]
Tj (°C)
Fig. 1: Relative variation of VBO versus junction
temperature (typical values)
1 10 100
0.1
1.0
10.0
20.0
tp(µs)
ITRM(A)
F=120Hz
Tj initial=25°C
Fig. 2: Repetitive peak pulse current versus pulse
duration (maximum values).
P1-P3P4-P4

TMMDB3

Mfr. #:
Buy TMMDB3
Manufacturer:
STMicroelectronics
Description:
Diacs 32 Volt Trigger
Lifecycle:
New from this manufacturer.
Delivery:
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