ST BTA24, BTB24, BTA25, BTA26, BTB26 User Manual

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BTA24, BTB24, BTA25

BTA26, BTB26, T25

25 A standard and Snubberless™ triacs

Features

■ High current triac

■ Low thermal resistance with clip bonding

■ High commutation (4 quadrant) or very high

commutation (3 quadrant) capability

■ BTA series UL1557 certified (File ref: 81734)

■ Packages are RoHS (2002/95/EC) compliant

Applications

TO-220AB Insulated

Applications include the ON/OFF function in applications such as static relays, heating regulation, induction motor starting circuits, etc., or for phase control operation in light dimmers, motor speed controllers, and silmilar.

The snubberless versions (BTA/BTB...W and T25 series) are especially recommended for use on inductive loads, due to their high commutation performances. The BTA series provides an insulated tab (rated at 2500 V

RMS

Description

Available either in through-hole or surface-mount packages, the BTA24, BTB24, BTA25, BTA26, BTB26 and T25 triac series is suitable for general purpose mains power AC switching.

Table 1. Device summary

Symbol Parameter BTA24

T(RMS)

DRM/VRRM

(Snubberless)

(Standard)

1. Insulated packages

2. 600 V version available only with IGT = 50 mA (Snubberless and Standard)

RMS on-state current

Repetitive peak off-state voltage

Triggering gate current

(1)

25 25 25 25 25 25 A

600 / 800 600 / 800 600 / 800 600

35 / 50 35 / 50 50 35 / 50 - 35 mA

-50505050-mA

BTB24 BTA25

(BTA24)

(BTA25)

D2PAK

(1)

RD91

(T25)

BTA26

(2)

(1)

/ 800

TO-220AB

(BTB24)

TOP3 Insulated

(BTA26)

TOP3

(BTB26)

BTB26 T25 Unit

600 600 / 800 V

TM: Snubberless is a trademark of STMicroelectronics

July 2007 Rev 10 1/12

www.st.com

Characteristics BTA24, BTB24, BTA25, BTA26, BTB26, T25

1 Characteristics

Table 2. Absolute maximum ratings

Symbol Parameter Value Unit

TOP3 Tc = 105° C

T(RMS)

PAK /

TO-220AB

RMS on-state current (full sine wave)

RD91 Ins/ TOP3 Ins.

= 100° C

25 A

TO-220AB Ins. Tc = 75° C

TSM

dI/dt

DSM/VRSM

G(AV)

stg

Table 3. Electrical characteristics (Tj = 25° C, unless otherwise specified), Snubberless and

Non repetitive surge peak on-state current (full cycle, T

t Value for fusing tp = 10 ms 340 A²s

initial = 25° C)

Critical rate of rise of on-state current I

= 2 x IGT , tr ≤ 100 ns

Non repetitive surge peak off-state voltage

Peak gate current tp = 20 µs Tj = 125° C 4 A

Average gate power dissipation Tj = 125° C 1 W

Storage junction temperature range Operating junction temperature range

F = 50 Hz t = 20 ms 250

F = 60 Hz t = 16.7 ms 260

F = 120 Hz T

= 10 ms Tj = 25° C

= 125° C 50 A/µs

DRM/VRRM

+ 100

- 40 to + 150

- 40 to + 125

° C

logic level (3 quadrants) T25, BTA/BTB24...W, BTA25...W, BTA26...W

Symbol Test Conditions Quadrant

(1)

(2)

dV/dt

(dI/dt)c

1. minimum IGT is guaranted at 5% of IGT max.

2. for both polarities of A2 referenced to A1.

VD = 12 V RL = 33 Ω

VD = V

= 125° C

RL = 3.3 kΩ

DRM

IT = 500 mA MAX. 50 50 75 mA

IG = 1.2 I

(2)

VD = 67 %V

(2)

Without snubber Tj = 125° C MIN. 13 13 22 A/ms

gate open Tj = 125° C MIN. 500 500 1000 V/µs

DRM

I - II - III MAX. 35 35 50 mA

I - II - III MAX. 1.3 V

I - II - III MIN. 0.2 V

2/12

T25 BTA/BTB

T2535 CW BW

I - III

70 70 80

MAX.

II 80 80 100

Unit

BTA24, BTB24, BTA25, BTA26, BTB26, T25 Characteristics

Table 4. Electrical characteristics (Tj = 25° C, unless otherwise specified),

standard (4 quadrants), BTB24...B, BTA25...B, BTA26...B, BTB26...B

Symbol Test Conditions Quadrant Value Unit

(1)

(2)

VD = 12 V RL = 33 Ω

VD = V

RL = 3.3 kΩ Tj = 125° C ALL MIN. 0.2 V

DRM

)IT = 500 mA MAX. 80 mA

I - II - III

MAX.

IV 100

ALL MAX. 1.3 V

I - III - IV

dV/dt

(dV/dt)c

1. minimum IGT is guaranted at 5% of IGT max.

2. for both polarities of A2 referenced to A1.

Table 5. Static characteristics

IG = 1.2 I

(2)

VD = 67 %V

(2)

(dI/dt)c = 13.3 A/ms Tj = 125° C MIN. 10 V/µs

II 160

gate open Tj = 125° C MIN. 500 V/µs

DRM

MAX.

Symbol Test Conditions Value Unit

(1)

DRM

RRM

1. for both polarities of A2 referenced to A1.

ITM = 35 A tp = 380 µs Tj = 25° C MAX. 1.55 V

(1)

Threshold voltage Tj = 125° C MAX. 0.85 V

(1)

Dynamic resistance Tj = 125° C MAX. 16 mΩ

Tj = 25° C

DRM

= V

RRM

= 125° C 3 mA

MAX.

5µA

Table 6. Thermal resistance

Symbol Parameter Value Unit

TOP 3 0.6

th(j-c)

Junction to case (AC)

PAK / TO-220AB 0.8

RD91 Insulated / TOP3 Insulated 0.9

TO-220AB Insulated 1.7

th(j-a)

Junction to ambient

(1)

S = 1 cm

D2PA K 4 5

TO-220AB / TO-220AB Insulated 60

1. S = Copper surface under tab.

3/12

° C/W

° C/WTOP3 / TOP3 Insulated 50

Characteristics BTA24, BTB24, BTA25, BTA26, BTB26, T25

Figure 1. Maximum power dissipation versus

RMS on-state current (full cycle)

P(W)

0 5 10 15 20 25

I (A)

T(RMS)

Figure 3. D2PAK RMS on-state current versus

ambient temperature (printed circuit board FR4, copper thickness: 35µm) (full cycle)

I (A)

T(RMS)

4.0

3.5

3.0

2.5

2.0

1.5

1.0

0.5

0.0 0 25 50 75 100 125

T (°C)

amb

DPAK

(S=1cm )

Figure 2. RMS on-state current versus case

temperature (full cycle)

I (A)

T(RMS)

T (°C)

BTA24

BTB24 / T25xx /

BTA25 / BTA26

0 25 50 75 100 125

BTB26

Figure 4. Relative variation of thermal

impedance versus pulse duration

K=[Z /R

1E+0

1E-1

1E-2

1E-3

1E-3 1E-2 1E-1 1E+0 1E+1 1E+2 5E+2

th th

th(j-c)

]

th(j-a)

BTA / BTB24 /T25

th(j-a)

BTA26

t (s)

Figure 5. On-state characteristics

(maximum values)

I (A)

300

T max.

V = 0.85V

R = 16 m

100

0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5

4/12

T=jT max.

T = 25°Cj.

V (V)

Figure 6. Surge peak on-state current

versus number of cycles

I (A)

TSM

300

250

200

150

100

Repetitive T =75°C

1 10 100 1000

Non repetitive T initial=25°C

Number of cycles

t=20ms

One cycle

BTA24, BTB24, BTA25, BTA26, BTB26, T25 Characteristics

Figure 7. Non-repetitive surge peak on-state

current for a sinusoidal pulse with width t value of I

TSM

dI/dt limitation:

50A/µs

I (A), I t (A s)

3000

1000

100

0.01 0.10 1.00 10.00

< 10 ms and corresponding

T initial=25°C

TSM

I t

t (ms)

Figure 9. Relative variation of critical rate of

decrease of main current versus (dV/dt)c (typical values)

(dI/dt)c [(dV/dt)c] / Specified (dI/dt)c

2.4

2.2

2.0

1.8

1.6

1.4

1.2

1.0

0.8

0.6

0.4

0.1 1.0 10.0 100.0

(dV/dt)c (V/µs)

T2535/CW/BW

Figure 8. Relative variation of gate trigger

current, holding current and latching current versus junction temperature (typical values)

I,I,I[T] /

GT H L j

2.5

2.0

1.5

1.0

0.5

0.0

-40 -20 0 20 40 60 80 100 120 140

I ,I ,I [T =25°C]

GT H L j

IH& I

T (°C)

Figure 10. Relative variation of critical rate of

decrease of main current versus T

(dI/dt)c [T ] / pecified]

0 25 50 75 100 125

(dI/dt)c [T s

T (°C)

Figure 11. D2PAK thermal resistance junction to

ambient versus copper surface under tab (printed circuit board FR4, copper thickness: 35 µm)

R (°C/W)

th(j-a)

0 4 8 12 16 20 24 28 32 36 40

S(cm²)

DPAK

5/12

Ordering information scheme BTA24, BTB24, BTA25, BTA26, BTB26, T25

2 Ordering information scheme

Figure 12. BTA and BTB series

BT A 24 - 600 BW RG

Triac series

Insulation

A = insulated B = non insulated

Current

24 = 25 A in TO-220AB 25 = 25 A in RD91 26 = 25 A in TOP3

Voltage

600 = 600 V 800 = 800 V

Sensitivity and type

B = 50 mA Standard BW = 50 mA Snubberless CW = 35 mA

Packing mode

RG = Tube

Snubberless

Figure 13. T25 series

Triac series

Current

25 = 25 A

Sensitivity

35 = 35 mA

Voltage

600 = 600 V 800 = 800 V

Package

G = D PAK

Packing mode

Blank = Tube

-TR = Tape and Reel

T 25 35 - 600 G (-TR)

6/12

BTA24, BTB24, BTA25, BTA26, BTB26, T25 Package information

3 Package information

● Epoxy meets UL94,V0

● Cooling method: C

● Recommended torque value: 0.4 - 0.5 Nm (TO-220AB), 0.9 - 1.2 Nm (TOP3 and RD91)

● Maximum torque value for BTB24 is 0.5 Nm

Table 7. D

PAK dimensions

DIMENSIONS

REF.

Millimeters Inches

Min. Typ. Max. Min. Typ. Max.

A 4.30 4.60 0.169 0.181

A1 2.49 2.69 0.098 0.106

A2 0.03 0.23 0.001 0.009

B 0.70 0.93 0.027 0.037

2mm min. FLAT ZONE

B2 1.25 1.40 0.048 0.055

C 0.45 0.60 0.017 0.024

C2 1.21 1.36 0.047 0.054

D 8.95 9.35 0.352 0.368

E 10.00 10.28 0.393 0.405

G 4.88 5.28 0.192 0.208

L 15.00 15.85 0.590 0.624

L2 1.27 1.40 0.050 0.055

L3 1.40 1.75 0.055 0.069

R 0.40 0.016

V2 0° 8° 0° 8°

Figure 14. D2PAK footprint dimensions (in millimeters)

16.90

10.30

1.30

8.90

7/12

3.70

5.08

Package information BTA24, BTB24, BTA25, BTA26, BTB26, T25

Table 8. RD91 dimensions

DIMENSIONS

REF.

Millimeters Inches

Min. Max. Min. Max.

A 40.00 1.575

A1 29.90 30.30 1.177 1.193

A2 22.00 0.867

C2 C1

B 27.00 1.063

B1 13.50 16.50 0.531 0.650

B2 24.00 0.945

C 14.00 0.551

C1 3.50 0.138

C2 1.95 3.00 0.077 0.118

E3 0.70 0.90 0.027 0.035

F 4.00 4.50 0.157 0.177

I 11.20 13.60 0.441 0.535

L1 3.10 3.50 0.122 0.138

L2 1.70 1.90 0.067 0.075

N1 33° 43° 33° 43°

N2 28° 38° 28° 38°

8/12

BTA24, BTB24, BTA25, BTA26, BTB26, T25 Package information

Table 9. TOP3 (insulated and non_insulated) dimensions

DIMENSIONS

REF.

Millimeters Inches

Min. Typ. Max. Min. Typ. Max.

ØL

A 4.4 4.6 0.173 0.181

B 1.45 1.55 0.057 0.061

C 14.35 15.60 0.565 0.614

D 0.5 0.7 0.020 0.028

E 2.7 2.9 0.106 0.114

F 15.8 16.5 0.622 0.650

G 20.4 21.1 0.815 0.831

H 15.1 15.5 0.594 0.610

J 5.4 5.65 0.213 0.222

K 3.4 3.65 0.134 0.144

ØL 4.08 4.17 0.161 0.164

P 1.20 1.40 0.047 0.055

R 4.60 0.181

9/12

Package information BTA24, BTB24, BTA25, BTA26, BTB26, T25

Table 10. TO-220AB (insulated and non-insulated) dimensions

DIMENSIONS

REF.

Millimeters Inches

Min. Typ. Max. Min. Typ. Max.

A 15.20 15.90 0.598 0.625

a1 3.75 0.147

Ø I

a2 13.00 14.00 0.511 0.551

B 10.00 10.40 0.393 0.409

b1 0.61 0.88 0.024 0.034

b2 1.23 1.32 0.048 0.051

C 4.40 4.60 0.173 0.181

c1 0.49 0.70 0.019 0.027

c2 2.40 2.72 0.094 0.107

e 2.40 2.70 0.094 0.106

F 6.20 6.60 0.244 0.259

ØI 3.75 3.85 0.147 0.151

I4 15.80 16.40 16.80 0.622 0.646 0.661

L 2.65 2.95 0.104 0.116

l2 1.14 1.70 0.044 0.066

l3 1.14 1.70 0.044 0.066

M 2.60 0.102

In order to meet environmental requirements, ST offers these devices in ECOPACK® packages. These packages have a lead-free second level interconnect. The category of second level interconnect is marked on the package and on the inner box label, in compliance with JEDEC Standard JESD97. The maximum ratings related to soldering conditions are also marked on the inner box label. ECOPACK is an ST trademark. ECOPACK specifications are available at: www.st.com.

10/12

BTA24, BTB24, BTA25, BTA26, BTB26, T25 Ordering information

4 Ordering information

Table 11. Ordering information

Ordering type Marking Package Weight Base qty Delivery mode

BTA/BTB24-xxxyzRG BTA/BTB24 xxxyz TO-220AB 2.3 g 50 Tube

BTA25-xxxyz BTA25xxxyz RD91 20 g 25 Bulk

BTA26-xxxyRG BTA26xxxyz TOP3 Ins. 4.5 g 30 Tube

BTB26-600BRG BTB26600B TOP3 4.5 g 30 Tube

T2535-xxxG T2535 xxxG

T2535-xxxG-TR T2535 xxxG 1000 Tape and reel

Note: xxx = voltage, y = sensitivity, z = type

5 Revision history

Table 12. Revision history

Date Revision Description of changes

Oct-2002 6A Previous update.

13-Feb-2006 7

31-May-2006 8 Reformatted to current standard. T

31-Jul-2006 9 Typing error corrected on page 1 (BTB124 instead of BTB24)

05-Jul-2007 10

PAK 1.5 g

50 Tube

TO-220AB delivery mode changed from bulk to tube. ECOPACK statement added.

in figure 3 changed to T

amb

Added BTB26-600BRG. Restructured cover page and section 2:

Ordering information scheme on page 6 to simplify product selection.

Thermal resistance values updated in Ta b le 6 and Figure 2. Graphic for I2t updated in Figure 7.

11/12

BTA24, BTB24, BTA25, BTA26, BTB26, T25

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12/12

ST BTA24, BTB24, BTA25, BTA26, BTB26 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Table 1. Device summary

1 Characteristics

Table 2. Absolute maximum ratings

Table 5. Static characteristics

Table 6. Thermal resistance

2 Ordering information scheme

Figure 12. BTA and BTB series

Figure 13. T25 series

3 Package information

Figure 14. D2PAK footprint dimensions (in millimeters)

Table 8. RD91 dimensions

Table 9. TOP3 (insulated and non_insulated) dimensions

Table 10. TO-220AB (insulated and non-insulated) dimensions

4 Ordering information

Table 11. Ordering information

5 Revision history

Table 12. Revision history