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參數(shù)資料
| 型號： | A5303SLETR-T |
| 廠商： | Allegro Microsystems Inc |
| 文件頁數(shù)： | 9/15頁 |
| 文件大小： | 0K |
| 描述： | IC SMOKE DETECTOR PHOTO 20TSSOP |
| 特色產(chǎn)品： | A5303 Standard 3V Smoke Detector IC |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 類型： | 煙霧探測器 |
| 輸入類型： | 光電 |
| 輸出類型： | 電壓 |
| 電流 - 電源： | 300µA |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 20-TSSOP（0.173"，4.40mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 20-TSSOP |
| 包裝： | 標(biāo)準(zhǔn)包裝 |
| 其它名稱： | 620-1346-6 |
Photoelectric Smoke Detector
with Interconnect, Timer, and Latching Alarm Indicator
A5303
3
Allegro MicroSystems, Inc.
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
DC ELECTRICAL CHARACTERISTICS1 Valid at TA = 25°C, VDD = 2.3 to 5.5 V, configured as in Typical Application Diagram
(unless otherwise noted)
Characteristics
Symbol
Test Conditions
Min.
Typ.2
Max.
Unit
Supply Voltage Range
VDD
Operating
2.3
3.0
5.5
V
Operating Supply Current
IDD
During standby, STROBE off
–
2.3
5.0
μA
During STROBE on, IRED off
–
210
300
μA
During STROBE on, IRED on
–
220
300
μA
Input Current
IIN
BLINK, C1, C2, DETECT, OSC CAP, TRES
(pulldown off)
–100
0
100
nA
TEST Pulldown Current
IIN(TEST)
VTEST = VDD = 3 V
–
3.5
–
μA
Logic Voltage Low
VI(L)
–
VDD ×
0.3
V
Logic Voltage High
VI(H)
VDD ×
0.7
–
V
Strobe Output Voltage
VST
Inactive
–
VDD
–
V
Active, IO = 100 to 500 μA
VDD –
2.1
VDD –
2.0
VDD –
1.9
V
Line Regulation
ΔVST(ΔVDD) Active, VDD = 2.3 to 5.5 V
–
–60
–
dB
Strobe Temperature Coefficient
αST
VSTROBE, VDD = 2.3 to 5.5 V
–
0.01
–
% / °C
Maximum IRED Current Setting
IIRED(MAX) Current is set by selection of resistor on ISET
pin
–
300
mA
IRED Current
IIRED
RISET = 3 Ω
89
100
111
mA
IRED Temperature Coefficient
αIRED
IIRED, VDD = 2.3 to 5.5 V
–
0.40
–
% / °C
LED Drive Current
ILED
VLED = 0.5 V
0.6
1.2
1.8
mA
Low-Battery Warning Threshold
VDD(th)
LVSET open
2.4
2.5
2.6
V
Low-Battery Warning Minimum
VDD(warn) VDD voltage guaranteed to operate SOUTx pins
1.8
V
Common Mode Voltage
VIC
Photoamplifier input
VDD –
1.0
–
VDD –
0.3
V
Smoke Comparator Reference Voltage
VREF
Any alarm condition, except hush mode
–
VDD –
1.6
–
V
I/O Input Impedance
ZI/O(in)
No alarm conditions
40
83
–
kΩ
I/O Output Impedance
ZI/O(out)
Local or test alarm
–
3.9
5.7
kΩ
1
Limits over the operating temperature range are based on characterization data. Characteristics are production tested at 25°C only.
2
Typical values are at 25°C and are given for circuit design information only.
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