HT7610A 데이터 시트보기 (PDF) - Holtek Semiconductor
부품명
상세내역
일치하는 목록
HT7610A Datasheet PDF : 12 Pages
| |||
HT761X
OSCD
OSCD is an output timing oscillator input pin. It is con-
nected to an external RC to obtain the desired output
turn-on duration. Variable output turn-on durations can
be achieved by selecting various values of RC or using a
variable resistor.
V DD
RD
O SCD
CD
TD=
1
f
´
21504
Output Timing Oscillator
RELAY (TRIAC)
RELAY is an output pin set as a RELAY driving (active
high) output for the HT761xA, or as a TRIAC driving (ac-
tive low) output for the HT761xB.
The output active duration is controlled by the OSCD os-
cillating period.
HT761xA
HT761xB
OUTPUT
RELAY
TRIAC
CDS
CDS is a CMOS Schmitt Trigger input structure. It is
used to distinguish between day time and night time.
When the input voltage of CDS is high the PIR input is
enabled. On the other hand, when CDS is low the PIR
input is disabled. The input disable to enable debounce
time is 5 seconds. Connect this pin to VDD when this
function is not used. The CDS input is ignored when the
output is active.
10s
R STB
4 0 s w a r m - u p tim e
CDS
LOW
HIGH
CDS
Status
Day Time
Night
PIR
Disabled
Enabled
<5 sec
5 sec
P IR e n a b le
d is a b le
e n a b le
MODE
MODE is a tristate input pin used to select the operating
mode.
MODE Operating
Status Mode
Description
VDD
Output is always ON:
ON
RELAY outputs high for relay driving.
TRIAC pulse train output is syn-
chronized by ZC for triac driving.
VSS
OFF
Output is always OFF:
RELAY outputs low for relay driving.
TRIAC outputs high for triac driving.
Open
AUTO
Outputs remain in the off state until
activated by a valid PIR input trigger
signal. When working in the AUTO
mode, the chip allows override con-
trol by switching the ZC signal.
ZC
T est
e n a b le
C o m p a ra to r
o u tp u t
R E LA Y
(T R IA C )
<3s
*
O FF
O F F /O N o n e o r tw o tim e s b y m a s k o p tio n
> 0 .3 4 s
fla s h 3 tim e s in 1 H z
fla s h o r n o t b y m a s k o p tio n
ON
ON
ON
2s
2s
2s
* : fla s h 3 tim e s a t a 1 H z r a te
fla s h o r n o t b y m a s k o p tio n
# : fla s h 3 tim e s a t a 2 H z r a te
fla s h o r n o t b y m a s k o p tio n
#
ON
2s
2s
>32s
Rev. 1.30
4
October 12, 2009
Share Link: 