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Details, datasheet, quote on part number:HT-2050
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Datasheet text preview:
HT-- 2050 FIVE LAMP/LED FLASH DRIVER
A. General Description --
D E C . 29 .1 99 3 PAGE: 1
T h e HT2050 is a low cost, low-power C-MOS LSI designed for lamp and L E D flash driver. It has five flash outputs with 10mA drive capability that can i m p le m e n t random or sequence flashing function controlled by one option pin. I t only requires one external resistor for typical application. It is very suitable f o r the use of the flash products such as disco glasses, disco hat, gift card, X ' m a s decoration and so forth.
B. Features --
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C - M O S Metal-Gate Process. O p e r a t i n g voltage: 1.2V ~ 4.5V. L o w stand-by current: 1µA at 3V. F i v e lamp flash driver with 10mA driving capability. R a n d o m or sequence flash selection t o g g l e on/off control function. 1 / 1 0 duty cycle output. B u il t - i n oscillator. M in im u m external components.
C. Block Diagram --
HT-- 2050 FIVE LAMP/LED FLASH DRIVER
D. Pin Assignment --
D E C . 29 .1 99 3 PAGE: 2
E . Pad Assignment & Position --
C h i p Size: 64 × 59 (m i l )
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* The IC substrate should be connected to VDD in PCB layout artwork. U nit: m il P a d No. 1 2 3 4 5 6 S y m bol OUT1 OUT2 OUT3 OUT4 OUT5 OSC1 x 21.09 9 .8 9 1 .3 1 12 .5 1 23 .7 1 26 .2 3 Y 20.9 20.9 20.9 20.9 20.9 13.3 P a d No. 7 8 9 10 11 12 S y m bol OSC2 VDD TEST OPT O N /O F F VSS X 26 .5 5 13 .3 5 6 .1 5 10.89 26.25 26.25 Y 2 6 .5 26 .5 26 .5 26 .5 26 .5 10.98
HT-- 2050 FIVE LAMP/LED FLASH DRIVER
F. Absolute Maximum Ratings --
P ara m ete r S u p p l y Voltage I n p u t / O u t p u t Voltage S t o r a g e Temperature O p e r a t in g Temperature S ym bo l VDD V I , VO TSTG TOP M inim um 0.3 V SS 0 .3 50 0 M a x im u m 5 V D D + 0 .3 125 70
D E C . 29 .1 99 3 PAGE: 3
U n it V V
°C °C
G . Electrical Characteristics --
Te s t Condition S y m bol VDD ISTB ID D IO L FOSC P a ram eter VDD O p e r a t i n g Voltage S t a n d - b y Current O p e r a t i n g Current O u t p u t Sink Current 3V O s c i ll a t o r Frequency -- -- 3V 3V 1.5V C o n d it io n -- -- N o load V OL=0.5V VOL=0.5V R=150K ~300K 1 .2 -- -- 5 10 -- 3 1 200 8 15 64K 4 .5 2 500 -- -- -- V
µA µ
M in .
Ty p .
Max.
U n it
mA mA Hz
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