HT7700.PDF

(320 KB) Pobierz

300789238 UNPDF

HT7700

Key & Touch Linear Dimmer

Features

·

High noise immunity CMOS technology

·

Low power dissipation

·

Operating voltage: 9V~12V

·

Loading range of sense input from 0 to

1200pf

·

High sensitivity and stability

·

Polarity insensitive with AC line

·

Dimmer function: 96 steps or ON/OFF switch

·

Minimum external components

·

50/60Hz selectable

·

Two types of input (Touch-Sense/Key-Trig-

ger) in one chip

·

8-pin DIP package

Applications

·

Light control

General Description

The HT7700 series is a CMOS fabricated LSI in

an 8-lead DIP package. It is designed to control

the brightness of an incandescent lamp by

changing the triggering angles of the TRIAC

with a touch sense input or a key trigger input.

For the key trigger type, if the key is pressed

more than 0.7 seconds, the brightness will de-

crease smoothly until the key is released. If the

key is continually held down, the lamp will

eventually turn off. But if the key is pressed less

than 0.7 seconds, the lamp will switch between

the “ON” and “OFF” states.

For the touch sense type, the first touch will

emit the brightest light. The second touch will

make it fade away gradually. The third touch

will maintain the level of brightness. The fourth

will turn it off completely.

There are four types of processor in the series,

namely Key-Trigger (7700A,50Hz), Key-Trigger

(7700B,60Hz), Touch-Sense (7700C,50Hz), and

Touch-Sense (7700D,60Hz).

Pin Assignment

1

21th July ’97

300789238.109.png

300789238.120.png

300789238.131.png

300789238.142.png

300789238.001.png

300789238.012.png

300789238.023.png

300789238.034.png

300789238.045.png

300789238.056.png

300789238.065.png

300789238.066.png

300789238.067.png

300789238.068.png

300789238.069.png

300789238.070.png

300789238.071.png

300789238.072.png

300789238.073.png

300789238.074.png

300789238.075.png

300789238.076.png

300789238.077.png

300789238.078.png

300789238.079.png

300789238.080.png

300789238.081.png

300789238.082.png

300789238.083.png

300789238.084.png

300789238.085.png

300789238.086.png

300789238.087.png

300789238.088.png

300789238.089.png

300789238.090.png

300789238.091.png

300789238.092.png

300789238.093.png

300789238.094.png

300789238.095.png

300789238.096.png

300789238.097.png

300789238.098.png

300789238.099.png

300789238.100.png

300789238.101.png

300789238.102.png

300789238.103.png

HT7700

Pad Coordinates

Unit: mil

Pad No.

X

Y

1

–51.21

25.11

2

–51.21

17.06

3

–51.26

0.50

4

–17.53

–47.41

5

0.38

–47.41

6

51.12

–1.8

7

51.66

8.46

8

51.21

47.34

9

43.11

47.34

10

–8.80

47.18

108 (mil) 2

* The IC substrate should be connected to VSS in the PCB layout artwork.

´

Block Diagram

2

21th July ’97

Chip size: 116

300789238.104.png

300789238.105.png

300789238.106.png

300789238.107.png

300789238.108.png

300789238.110.png

300789238.111.png

300789238.112.png

300789238.113.png

300789238.114.png

300789238.115.png

300789238.116.png

300789238.117.png

300789238.118.png

300789238.119.png

300789238.121.png

300789238.122.png

300789238.123.png

300789238.124.png

300789238.125.png

300789238.126.png

300789238.127.png

300789238.128.png

300789238.129.png

300789238.130.png

300789238.132.png

300789238.133.png

300789238.134.png

300789238.135.png

300789238.136.png

300789238.137.png

HT7700

Pad Description

Pad No.

Pad

Name

I/O

Description

1

FB

I Feedback signal to control the sink current of SENSOR pin

2

VSS

I Negative power supply

3

TRIG

O Trigger output to drive the TRIAC

4

OSC2

O Oscillator output

5

OSC1

I Oscillator input

6

VDD

I Positive power supply

7

FSEL

I For 50Hz or 60Hz select (open=60Hz, internal pull low)

8

ZC

I Line frequency 60Hz or 50Hz input for zero crossing

9

KEY

I Key input (internal pull high)

10

SENSE

I Touch sense input

Absolute Maximum Rating*

Supply Voltage ............................... –0.3V to 13V

Storage Temp ............................. –50

°

C to 125

°

C

Input Voltage................. V SS –0.3V to V DD +0.3V

Operating Temp ............................... 0

°

C to 70

°

C

*Note: Stresses above those listed under “Absolute Maximum Ratings” may cause permanent

damageto the device. These are stress ratings only. Functional operation of this device at

these or any other conditions above those indicated in the operational sections of this

specification is not implied and exposure to absolute maximum rating conditions for extended

periods may affect device reliability.

Electrical Characteristics

(Ta=25

°

C)

Test Conditions

Symbol

Parameter

Min.

Typ.

Max.

Unit

V DD Conditions

V DD

Operating Voltage

—

—

9

—

12

V

I DD

Operating Current

9V

No load

—

1

2

mA

F OSC

System Frequency

9V

R OSC =62k

W

—320

—k Z

I OL

TRIG Sink Current

9V

V OL =0.9V

—

14

—

mA

I OH

TRIG Driver Current

9V

V OH =8.1V

—

–0.2

—

mA

V IH

“H” Input Voltage

—

—

0.8V DD

—— V

V IL

“L” Input Voltage

—

—

—

—

0.2V DD

V

3

21th July ’97

300789238.138.png

HT7700

Functional Description

Key trigger type (HT7700A, HT7700B)

Touch sense type (HT7700C, HT7700D)

4

21th July ’97

300789238.139.png

300789238.140.png

300789238.141.png

300789238.143.png

300789238.144.png

300789238.145.png

300789238.146.png

300789238.147.png

300789238.148.png

300789238.149.png

300789238.150.png

300789238.151.png

300789238.152.png

300789238.002.png

300789238.003.png

300789238.004.png

300789238.005.png

300789238.006.png

300789238.007.png

300789238.008.png

300789238.009.png

300789238.010.png

300789238.011.png

300789238.013.png

300789238.014.png

300789238.015.png

300789238.016.png

HT7700

Application Circuit

Key trigger input

5

21th July ’97

300789238.017.png

300789238.018.png

300789238.019.png

300789238.020.png

300789238.021.png

300789238.022.png

300789238.024.png

300789238.025.png

300789238.026.png

300789238.027.png

300789238.028.png

300789238.029.png

300789238.030.png

300789238.031.png

300789238.032.png

300789238.033.png

300789238.035.png

300789238.036.png

300789238.037.png

300789238.038.png

300789238.039.png

300789238.040.png

300789238.041.png

300789238.042.png

300789238.043.png

300789238.044.png

300789238.046.png

300789238.047.png

300789238.048.png

300789238.049.png

300789238.050.png

300789238.051.png

300789238.052.png

300789238.053.png

300789238.054.png

300789238.055.png

300789238.057.png

300789238.058.png

300789238.059.png

300789238.060.png

300789238.061.png

300789238.062.png

300789238.063.png

300789238.064.png

Plik z chomika:

Inne pliki z tego folderu:

2764.PDF (86 KB)
PIC12C508.PDF (591 KB)
24C01.PDF (111 KB)
27C128.PDF (129 KB)
2732.PDF (92 KB)

Inne foldery tego chomika:

Zgłoś jeśli naruszono regulamin