BL59A65 Datasheet, PDF (2/11 Pages) SHANGHAI BELLING CO., LTD. – Photo Smoke Detector Control IC with hush

BL59A65
Pin Configuration:
Fig.1 Pin Configuration
Pin
No.
MAXIMUM RATINGS (Voltage referenced to Vss)
Symbol Parameter
Range
ＶDD
Supply Voltage
-0.5～＋15
ＶIN
Input Voltage
-0.3～ＶDD＋0.3
IIN
Input Current
10
T_A
ï¼´stg
Operating Temperature
Storage Temperature
-25 ～ +75
-55 ～ +125
ï¼´L
Welding Temperature
260
PIN FUNCTIONAL DESCRIPTION
Pin symbol
Input/O
Function Description
utput
Unit
V
V
mA
℃
℃
℃
1 ,2
C1 , C2
External capacitor A capacitor connected to the pins determines the gain
connected to the pins of the photo amplifier.
3
DETECT
Input
Input to the photo This pin connects the cathode of the photo diode. The
amplifier
photo diode is operated at zero bias.
4
STROBE
Output Regulated voltage The pin is the Regulated voltage Output. The value is
Output
Vdd-5V.
5 ,14
Vdd , VSS
Power/Gnd
Power supply
6
IRED
Output
Signal output
This pin is a output, which provides a pulsed base
current for the external npn transistor, which drives the
IR emitter.
7
I/O
A connection at this pin allows multiple smoke
detectors (less than 50) to be interconnected.
8 ,9
BRASS,
Output
Piezoelectric
These TWO pins are used in conjunction with a
SILVER
Transducer Output piezoelectric transducer.
10
FEEDBACK Inuput
Piezoelectric
The pin is used in conjunction with a piezoelectric
Transducer Input transducer feedback electrode.
11
LED
Output
Signal output
This open-drain NMOS output is used to directly drive a
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