1.Product pro?le
1.1General description
Passivated, new generation, high commutation triacs in an internally insulated TO-220plastic package
1.2Features
1.3Applications
1.4Quick reference data
2.Pinning information
BTA312Y series C
12 A Three-quadrant triacs high commutation insulated
Rev. 01 — 27 September 2007
Product data sheet
I Very high commutation performance I High immunity to dV/dt
I Isolated mounting base
I 2500V RMS isolation voltage
I Motor control - e.g. washing machines I Non-linear recti?er-fed motor loads I Refrigeration compressors
I Lamp dimmers for US market
I V DRM ≤600V (BT A312Y -600C)I I T(RMS)≤12A
I V DRM ≤800V (BT A312Y -800C)I I TSM ≤100A (t =20ms)I I GT ≤35mA
I I TSM ≤110A (t =16.7ms)
Table 1.Pinning
Pin Description Simpli?ed outline Symbol
1main terminal 1 (T1)SOT78D (TO-220)
2main terminal 2 (T2)3gate (G)
mb
mounting base; isolated
12mb
3
sym051
T1G
T2
3.Ordering information
4.Limiting values
[1]
Although not recommended,off-state voltages up to 800V may be applied without damage,but the triac may switch to the on-state.The rate of rise of current should not exceed 15A/μs.
Table 2.
Ordering information
Type number
Package Name
Description
Version
BT A312Y -600C TO-220
plastic single-ended package;isolated heatsink mounted;1mounting hole;3-lead TO-220
SOT78D BT A312Y -800C
Table 3.Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134).Symbol Parameter
Conditions Min Max Unit V DRM repetitive peak off-state voltage BTA312Y -600C;[1]
-600V BTA312Y -800C;
-800V I T(RMS)RMS on-state current
full sine wave; T mb ≤85°C; see Figure 4 and 5
-
12
A
I TSM
non-repetitive peak on-state current
full sine wave; T j =25°C prior to surge; see Figure 2 and 3t = 20 ms -100A t = 16.7 ms
-110A I 2t I 2t for fusing
t = 10 ms
-50A 2s dI T /dt rate of rise of on-state current I TM =20A; I G =0.2A;dI G /dt =0.2A/μs
-100A/μs I GM peak gate current -2A P GM peak gate power -
5W P G(AV)average gate power over any 20ms period -0.5W T stg storage temperature ?40+150°C T j
junction temperature
-
125
°C
α=conduction angle
Fig 1.Total power dissipation as a function of RMS on-state current; maximum values
f =50Hz
Fig 2.Non-repetitive peak on-state current as a function of the number of sinusoidal current cycles; maximum
values
003aab808
4
8
12
160369
12
I T(RMS) (A)
P tot (W)α = 180°
120°90°
60°30°
conduction angle (degrees)
form factor a 306090120180
42.82.21.91.57
α
003aab809
020
40
60
80
100
120
1
10
102
103
number of cycles (n)
I TSM (A)I TSM t
I T
T j(init) = 25 °C max
1/f
t p ≤20ms (1)dI T /dt limit
Fig 3.Non-repetitive peak on-state current as a function of pulse duration; maximum values
f =50Hz T mb =85°C
Fig 4.RMS on-state current as a function of surge
duration; maximum values Fig 5.RMS on-state current as a function of mounting
base temperature; maximum values
003aab806
10
102
10310-5
10-410-310-2
10-1
t p (s)
I TSM (A)
I TSM t
I T
T j(init) = 25 °C max
t p
(1)
003aab807
010203010-2
10-1
1 10surge duration (s)
I T(RMS)(A)
003aab805
05
10
15-50
050100
150
T mb (°C)
I T(RMS)(A)
5.Thermal characteristics
6.Isolation characteristics
Table 4.Thermal characteristics Symbol Parameter
Conditions
Min Typ Max Unit R th(j-mb)thermal resistance from junction to mounting base
full cycle; see Figure 6-- 2.3K/W R th(j-a)
thermal resistance from junction to ambient
in free air -60
-K/W
Fig 6.Transient thermal impedance from junction to mounting base as a function of pulse duration
003aab804
10?1
10?2
1
10Z th(j-mb)(K/W)
10?3
t p (s)
10?5
1
10
10?1
10?210?410?3t p
P
t
Table 5.Isolation limiting values and characteristics T h = 25°C unless otherwise speci?ed.Symbol Parameter
Conditions
Min Typ Max Unit V isol(RMS)
RMS isolation voltage from all three terminals to
external heatsink; f = 50 Hz to 60 Hz; sinusoidal waveform;RH ≤65%;clean and dust free --2500
V
C isol
isolation capacitance
from pin 2to external heatsink;f =1MHz
-10-pF
7.Static characteristics
Table 6.Static characteristics
T j=25°C unless otherwise speci?ed.
Symbol Parameter Conditions Min Typ Max Unit I GT gate trigger current V D=12V; I T=0.1A; see Figure8
T2+ G+2-35mA
T2+ G?2-35mA
T2? G?2-35mA I L latching current V D=12V; I GT=0.1A; see Figure10
T2+ G+--50mA
T2+ G?--60mA
T2? G?--50mA I H holding current V D=12V; I GT=0.1A; see Figure11--35mA V T on-state voltage I T=15A; see Figure9- 1.3 1.6V
V GT gate trigger voltage V D=12V; I T=0.1A; see Figure7-0.8 1.5V
V D=400V; I T=0.1A; T j=125°C0.250.4-V
I D off-state current V D=V DRM(max); T j=125°C-0.10.5mA
8.Dynamic characteristics
Table 7.Dynamic characteristics
Symbol Parameter
Conditions
Min Typ Max Unit dV D /dt
rate of rise of off-state voltage
V DM =0.67× V DRM(max); T j =125°C; exponential waveform;gate open circuit
500--V/μs dI com /dt rate of change of commutating current V DM =400V; T j =125°C; I T(RMS)=12A; without snubber;
gate open circuit 20
--A/ms
t gt
gate-controlled turn-on time
I TM =20A; V D =V DRM(max); I G =0.1A; dI G /dt =5A/μs
-2-μs
(1)T2? G ?(2)T2+ G ?(3)T2+ G+
Fig 7.Normalized gate trigger voltage as a function of
junction temperature Fig 8.Normalized gate trigger current as a function of
junction temperature
T j (°C)
?50
150
100
050001aab101
0.81.2
1.60.4V GT V GT(25°C)
T j (°C)
?50
150
100
050001aac669
1
2
3
0(1)
(2)
(3)
I GT I GT(25°C)
V o =1.127V R s =0.027?
(1)T j = 125 °C; typical values (2)T j = 125°C; maximum values (3)T j = 25°C; maximum values
Fig 9.On-state current as a function of on-state
voltage
Fig 10.Normalized latching current as a function of
junction temperature
Fig 11.Normalized holding current as a function of junction temperature
003aab678
10
20
30
4000.51 1.52
2.5
V T (V)
I T (A)(1)(2)(3)
T j (°C)
?50
150
100
050001aab100
1
2
30I L I L(25°C)
T j (°C)
?50
150
100
050001aab099
1
2
30I H I H(25°C)
9.Package outline
Fig 12.Package outline SOT78D (3-lead TO-220)
REFERENCES
OUTLINE VERSION EUROPEAN PROJECTION
ISSUE DATE IEC
JEDEC JEITA
SOT78D
TO-220
SOT78D
07-04-0407-07-10
UNIT A mm
4.74.3
1.401.25
0.90.6
0.60.4
16.015.2
6.5
10.39.7
3.0
0.2
A 1DIMENSIONS (mm are the original dimensions)Plastic single-ended package; isolated heatsink mounted; 1 mounting hole; 3-lead TO-220
0510 mm
scale
b c D D 1ref E e 2.54
L 14.012.8
L 1ref p 3.73.5
Q 2.62.2
q 3.02.7
w b 21.721.32
b 11.41.1
c
Q
A 1
A mounting base
e
e
w M p
b
b 2
b 1
D 1
L
D
L 1
q
E 123
10.Revision history
Table 8.Revision history
Document ID Release date Data sheet status Change notice Supersedes BT A312Y_SER_C_120070927Product data sheet--
分销商库存信息:
NXP
BTA312Y-800C,127BTA312Y-600C,127
新概念英语第一册课文翻译及学习笔记Lesson127【课文】 KATE: Can you recognize that woman,Liz? LIZ: I think I can, Kate. It must be Karen Marsh, the actress. KATE: I thought so. Who's that beside her? LIZ: That must be Conrad Reeves. KATE: Conrad Reeves, the actor?It's can't be.Let me have another look. I think you're right! Isn't he her third husband? LIZ: No. He must be her fourth or fifth. KATE: Doesn't Karen Marsh look old! LIZ: She does, doesn't she! I read she's twenty-nine, but she must be at least forty. KATE: I'm sure she is. LIZ: She was a famous actress when I was still at school. KATE: That was a long time ago, wasn't it? LIZ: Not that long ago! I'm not more than twenty-nine myself. 【课文翻译】 凯特:莉兹,你能认出那个女人吗?
Lesson127 KATE: Can you recognize that woman,Liz? LIZ: I think I can, Kate. It must be Karen Marsh, the actress. KATE: I thought so. Who's that beside her? LIZ: That must be Conrad Reeves. KATE: Conrad Reeves, the actor?It's can't be. Let me have another look. I think you're right! Isn't he her third husband? LIZ: No. He must be her fourth or fifth. KATE: Doesn't Karen Marsh look old! LIZ: She does, doesn't she! I read she's twenty-nine, but she must be at least forty. KATE: I'm sure she is. LIZ: She was a famous actress when I was still at school. KATE: That was a long time ago, wasn't it? LIZ: Not that long ago! I'm not more than twenty-nine myself. 凯特:莉兹,你能认出那个女人吗? 莉兹:我想我认得出来,凯特。那一定是女演员卡.马会。 凯特:我也这样想。她旁边的那个人是谁? 莉兹:一定是康拉德.里弗斯。 凯特:康拉德.里弗斯,那个男演员吗?不可能是。让我再看一看。我想你是对的。他不是她的第3个丈夫吗? 莉兹:不,他一定是她的第4个或第5个丈夫。 凯特:卡伦看上去不显老嘛! 莉兹:是的,谁说不是呢!我从报上看到她是29岁,但她一定至少有40岁了。 凯特:我肯定她有40岁了。 莉兹:当我还是学生时,她就是个著名的演员了。 凯特:那是好久以前的事了。是吗? 莉兹:不,没有那么久。我自己现在还没29岁呢。
Lesson127 KATE: Can you recognize that woman,Liz? LIZ: I think I can, Kate. It must be Karen Marsh, the actress. KATE: I thought so. Who's that beside her? LIZ: That must be Conrad Reeves. KATE: Conrad Reeves, the actor?It's can't be. Let me have another look. I think you're right! Isn't he her third husband? LIZ: No. He must be her fourth or fifth. KATE: Doesn't Karen Marsh look old! LIZ: She does, doesn't she! I read she's twenty-nine, but she must be at least forty. KATE: I'm sure she is. LIZ: She was a famous actress when I was still at school. KATE: That was a long time ago, wasn't it? LIZ: Not that long ago! I'm not more than twenty-nine myself. 凯特:莉兹,你能认出那个女人吗? 莉兹:我想我认得出来,凯特。那一定是女 演员卡.马会。 凯特:我也这样想。她旁边的那个人是谁? 莉兹:一定是康拉德.里弗斯。 凯特:康拉德.里弗斯,那个男演员吗?不可能 是。让我再看一看。我想你是对的。他不是她的 第3个丈夫吗? 莉兹:不,他一定是她的第4个或第5个丈夫。 凯特:卡伦看上去不显老嘛! 莉兹:是的,谁说不是呢!我从报上看到她是 29岁,但她一定至少有40岁了。 凯特:我肯定她有40岁了。 莉兹:当我还是学生时,她就是个著名的演员了。 凯特:那是好久以前的事了。是吗? 莉兹:不,没有那么久。我自己现在还没29 岁呢。
授课讲义
I’ll certainly be more careful. 我以后一定会多加注意。这里面助动词是will,应该放在前面。It takes a long time. take用于花费时间。 It takes sb. sometime to do sth 做某事需要花费某人多长时间 It took me a week to finish this work. 我完成这项工作花了一周的时间。 We might not go anywhere. 我们可能哪也不去,而不是我们不可能去那。We can’t go anywhere。 In the end adv.最后。等于at last adv.最后=at the end of sth 在…结尾。
Expressions 1. must和have to的用法 | 两者都表示必要性,两者的主要区别在于: 1. must表示主观意愿,而have to表示客观事实。 2. must 只用于现在时,而过去时用had to,将来时用will have to。 3. must 不用于否定句,否定句用needn’t 不必要或don’t need to。mustn’t的意思 是不允许,禁止。 2. 情态动词表示推测: 情态动词表示推测的有:must一定、could很有可能、may可能、might有一些可能。 它们的用法是: 1. 它们表示推测只能用于肯定句之中,而疑问句用can,否定句用can’t不可能。 Can the he stay at home at the moment 现在他能在家么 He must be staying at home. 他一定在家。 He can’t be staying at home. 他不可能在家。 2. 情态动词用原形,表示对现在或将来的情况时行推测。 He must be a teacher. 他可能是一名老师。(系表) We may travel by sea next month. 下个月,我们可能乘船旅行。 3. 情态动词用be doing,表示对现在的情况进行推测。 He must be having a lot of money. 他一定有很多钱。 Jim may be playing the basketball. 吉姆可能正在打篮球。 4. 情态动词用have done,表示对过去的情况进行推测。 It must have rained yesterday. 昨天一定下雨了。 I can’t have been late yesterday. 我昨天不可能迟到。 She could have phoned you last night. 她昨晚应该给你打电话了。 He must have stayed at home when we arrived. 当我们到达的时候,他一定在 家。 5. 情态动词用have been doing,表示对过去正在进行的动作或过去一直进行的动 作进行推测。 She may have been doing his homework last night. 昨天晚上,他可能一直在写作 业。
Lesson 127 A famous actress著名的女演员 Listen to the tape then answer this question.Who is only twenty-nine, and why is it so unclear? 听录音,然后回答问题。谁只有29岁?为什么这件事如此含糊不清?Kate: Can you recognize that woman, Millie? 凯特:莉兹,你能认出那个女人吗? Millie: I think I can, Kate. It must be Karen Marsh, the actress. 莉兹:我想我认得出来,凯特。那一定是女演员卡.马会。 Kate: I thought so. Who’s that beside her? 凯特:我也这样想。她旁边的那个人是谁? Millie: That must be Conrad Reeves. 莉兹:一定是康拉德.里弗斯。 Kate: Conrad Reeves, the actor? It can’t be. Let me have another look. I think you’re right! Isn’t he her third husband? 凯特:康拉德.里弗斯,那个男演员吗?不可能是。让我再看一看。 我想你是对的。他不是她的第3个丈夫吗?
Millie: No, He must be her fourth or fifth. 莉兹:不,他一定是她的第4个或第5个丈夫。 Kate: Doesn’t Karen Marsh look old! 凯特:卡伦看上去不显老嘛! Millie: She does, doesn’t she! I read she’s twenty-nine, but she must be at least forty. 莉兹:是的,谁说不是呢!我从报上看到她是29岁,但她一定至少有40岁了。 Kate: I’m sure she is. 凯特:我肯定她有40岁了。 Millie: She was a famous actress when I was still a schoolgirl. 莉兹:当我还是学生时,她就是个著名的演员了。 Kate: That was a long time ago, wasn’t it? 凯特:那是好久以前的事了。是吗? Millie: Not that long ago! I’m not more than twenty-nine myself. 莉兹:不,没有那么久。我自己现在还没29岁呢。
新概念英语第一册课后题及答案:Lesson127-128 Written exercises 书面练习 A Rewrite these sentences, using either has to or I think he is probably ...模仿例句,使用has to或I think he is probably ... 改写以下句子。 Examples: He must be home before six o'clock. He has to be home before six o'clock. He must be tired. I think he is probably tired. 1 He must be here at six o'clock. 2 He must be busy. 3 He must be at the office early tomorrow. 4 He must be sleeping. 5 He must be French. 6 He must be in France next week. 7 He must be an engineer. B Write new sentences. 模仿例句改写下列句子。 Example: I think she's Danish. (Swedish)
I don't think so. She can't be Danish. She must be Swedish. 1 I think she's Italian. (Greek) 2 I think he's English. (American) 3 I think they're Canadian. (Australian) 4 I think he's a mechanic. (engineer) 5 I think he's a bus conductor. (bus driver) 6 I think he's a sales rep. (the boss) 7 I think he's twenty-four. (thirty) 8 I think they're five. (seven) 9 I think he's seventy-six. (over eighty) 10 I think she's fifty-five. (under fifty) 11 I think it's the 21st today. (20th) 12 I think it's Tuesday today. (Wednesday) 13 I think it's the 2nd today. (3rd) 14 I think it's cheap. (expensive) 15 I think it's easy. (difficult) 16 I think she's old. (young) 17 I think they're early. (late) 18 I think he's reading. (sleeping)