Document
TMA8x Series Triac (Bidirectional Triode Thyristor)
Features and Benefits
▪ Exceptional reliability ▪ Small fully-molded SIP package with heatsink mounting for high thermal dissipation and long life ▪ VDRM of 400 or 600 V ▪ 8 ARMS on-state current ▪ Uniform switching ▪ UL Recognized Component (File No.: E118037) (suffix I)
Description
This Sanken triac (bidirectional triode thyristor) is designed for AC power control, providing reliable, uniform switching for full-cycle AC applications. In comparison with other products on the market, the TMA8x series provides increased isolation voltage (1800 VACRMS), guaranteed for up to 1 minute, and greater peak nonrepetitive off-state voltage, VDSM (700 V). In addition, commutation dv/dt and (dv/dt)c are improved.
Package: 3-pin SIP (TO-220F)
Applications
▪ Residential and commercial appliances: vacuum cleaners, rice cookers, TVs, home entertainment ▪ White goods: washing machines ▪ Office automation power control, photocopiers ▪ Motor control for small tools ▪ Temperature control, light dimmers, electric blankets ▪ General use switching mode power supplies (SMPS)
Not to scale
Typical Applications
Halogen Lamp
Gate Controller
Heater control (for example, LBP. PPC, MFP)
Two-phase motor control (for example, washing machine)
In-rush current control (for example, SMPS)
28105.12
TMA8x Series
Selection Guide
Part Number
TMA84(I) TMA84S-L TMA86(I) TMA86S-L
Triac (Bidirectional Triode Thyristor)
VDRM (V)
400 400 600 600
UL-Recognized Component
Yes – Yes –
Package
3-pin fully molded SIP with heatsink mount
Packing
50 pieces per tube
Absolute Maximum Ratings
Characteristic Peak Repetitive Off-State Voltage Symbol VDRM Notes Rating 400 600 500 700 1800 8 84 80 32 2 5 0.5 –40 to 125 –40 to 125 Units V V V V V A A A A2 • s A W W ºC ºC
TMA84x TMA86x TMA84x TMA86x
RGREF = ∞ RGREF = ∞
Peak Non-Repetitive Off-State Voltage Isolation Voltage RMS On-State Current
VDSM VISO IT(RMS)
AC RMS applied for 1 minute between lead and case 50/60 Hz full cycle sine wave, total Conduction angle (α+) + (α–) = 360°, TC = 92°C f = 60 Hz Full cycle sine wave, peak value, non-repetitive, initial TJ = 125°C
Surge On-State Current I2t Value for Fusing Peak Gate Current Peak Gate Power Dissipation Average Gate Power Dissipation Junction Temperature Storage Temperature
ITSM f = 50 Hz I2t IGM PGM PGM(AV) TJ Tstg
Value for 50 Hz half cycle sine wave, 1 cycle, ITSM = 80 A f ≥ 50 Hz, duty cycle ≤ 10% f ≥ 50 Hz, duty cycle ≤ 10% TJ < TJ(max)
Thermal Characteristics May require derating at maximum conditions
Characteristic
Package Thermal Resistance (Junction to Case)
Symbol
RθJC For AC
Test Conditions
Value
3.7
Units
ºC/W
Pin-out Diagram
T2
Number 1
Terminal List Table
Name T1 T2 G Function Main terminal, gate referenced Main terminal connect to signal side Gate control
G T1
2 3
1 2 3
All performance characteristics given are typical values for circuit or system baseline design only and are at the nominal operating voltage and an ambient temperature, TA, of 25°C, unless otherwise stated.
Allegro MicroSystems, Inc. 115 Northeast Cutoff Worcester, Massachusetts 01615-0036 U.S.A. 1.508.853.5000; www.allegromicro.com
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TMA8x Series
ELECTRICAL CHARACTERISTICS
Characteristics Off-State Leakage Current On-State Voltage Symbol IDRM VTM VGT
Triac (Bidirectional Triode Thyristor)
Test Conditions VD = VDRM, TJ = 125°C, RGREF = ∞ using test circuit 1 VD = VDRM, TJ = 25°C, RGREF = ∞ using test circuit 1 IT = 12 A, TJ = 25°C Quadrant I: T2+, G+ Quadrant II: T2+, G– Quadrant III: T2–, G– Quadrant I: T2+, G+ VD = 12 V, RL = 20 Ω, TJ = 25°C VD = 12 V, RL = 20 Ω, TJ = 25°C
Min. – – – – – – – – – 0.2 10
Typ. – – – – – – – – – – –
Max. 2.0 100 1.5 1.5 1.5 1.5 30 30 30 – –
Unit mA μA V V V V mA mA mA V V/μs
Gate Trigger Voltage
Gate Trigger Current
IGT VGD (dv/dt)c
Quadrant II: T2+, G– Quadrant III: T2–, G–
Gate Non-trigger Voltage Critical Rising Rate of Off-State Voltage during Commutation*
VD = VDRM × 0.5, RL = 4 kΩ, TJ = 125°C TJ = 125°C, VD = 400 V, (di/dt)c = –4 A/ms, ITP = 2 A
*Where ITP is the peak current through T2 to T1.
Test Circuit 1
Gate Trigger Characteristics +T2 Quadrant II
T2 [ + ] T2 RGREF =
Quadrant I
T2 [ + ]
∞
G T1 T1 [ – ]
G[–] T1 [ – ]
G[+]
–IGT
T2 [ – ]
T2 [ – ]
+IGT
G[–] T1 [ + ] T1 [ + ]
G[+]
Quadrant III
–T2
Polarities referenced to T1
Quadrant IV
Allegro MicroSystems, Inc. 115 Northeast Cutoff Worcester, Massachusetts 01615-0036 U.S.A. 1.508.853.5000; www.allegromicro.com
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TMA8x Series
Triac (Bidirectional Triode Thyristor)
Commutation Timing Diagrams
Q4
Supply VAC
A
Q
A = Conduction angle
VGT
VGATE Q
ITSM
On-State Currrent
Q
Allegro MicroSystems, Inc. 115 Northeast Cutoff Worcester, Massachusetts 01615-0036 U.S.A. 1.508.853.5000; www.allegromicro.com
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TMA8x Series
Triac (Bidirectional Triode Thyristor)
Performance Characteristics at TA = 25°C
100
100 90
TJ = 125°C f = 50 Hz full cycle sine wave total Conduction angle.