HT-2050 Holtek Semiconductor Inc, HT-2050 Datasheet

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HT-2050

Manufacturer Part Number
HT-2050
Description
FIVE LAMP/LED FLASH DRIVER
Manufacturer
Holtek Semiconductor Inc
Datasheet
A. General Description —
B. Features —
C. Block Diagram —
The HT–2050 is a low cost, low-power C-MOS LSI designed for lamp and
LED flash driver. It has five flash outputs with 10mA drive capability that can
implement random or sequence flashing function controlled by one option pin.
It only requires one external resistor for typical application. It is very suitable
for the use of the flash products such as disco glasses, disco hat, gift card,
X’mas decoration and so forth.
C-MOS Metal-Gate Process.
Operating voltage: 1.2V ~ 4.5V.
Low stand-by current: 1 A at 3V.
Five lamp flash driver with 10mA driving capability.
Random or sequence flash selection
toggle on/off control function.
1/10 duty cycle output.
Built-in oscillator.
Minimum external components.
FIVE LAMP/LED FLASH DRIVER
HT— 2050
DEC.29.1993
PAGE:
1

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HT-2050 Summary of contents

Page 1

... A. General Description — The HT–2050 is a low cost, low-power C-MOS LSI designed for lamp and LED flash driver. It has five flash outputs with 10mA drive capability that can implement random or sequence flashing function controlled by one option pin. It only requires one external resistor for typical application very suitable for the use of the flash products such as disco glasses, disco hat, gift card, X’ ...

Page 2

... The IC substrate should be connected to VDD in PCB layout artwork. Pad No. Symbol x 1 OUT1 –21.09 2 OUT2 –9.89 3 OUT3 1.31 4 OUT4 12.51 5 OUT5 23.71 6 OSC1 26.23 HT— 2050 FIVE LAMP/LED FLASH DRIVER C hip Siz il) Y Pad No. Symbol –20.9 7 –20.9 8 –20.9 9 –20.9 10 –20.9 11 ON/OFF 13.3 12 DEC.29.1993 PAGE: ...

Page 3

... Operating Temperature G. Electrical Characteristics — Symbol Parameter V Operating Voltage DD I Stand-by Current STB I Operating Current DD I Output Sink Current OL F Oscillator Frequency OSC HT— 2050 FIVE LAMP/LED FLASH DRIVER Symbol Minimum V –0 –0 –50 STG Test Condition ...

Page 4

... ON/OFF I 12 VSS I Note: OPTION= 1 OPTION= Open HT— 2050 FIVE LAMP/LED FLASH DRIVER Description Lamp/LED flash drive output pad. Lamp/LED flash drive output pad. Lamp/LED flash drive output pad. Lamp/LED flash drive output pad. Lamp/LED flash drive output pad. Oscillator input pad. ...

Page 5

... I. Application Diagram — HT— 2050 FIVE LAMP/LED FLASH DRIVER DEC.29.1993 PAGE: 5 ...

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