RE46C165 Microchip Technology Inc., RE46C165 Datasheet
RE46C165
Available stocks
Related parts for RE46C165
RE46C165 Summary of contents
Page 1
... An alarm memory feature allows the user to determine if the unit has previously entered a local alarm condition. Utilizing low-power RE46C165/6/7/8 was designed for use in smoke detectors that comply with Underwriters Laboratory Specification UL217 and UL268. CMOS technology, the ...
Page 2
... RE46C165/6/7/8 Package Types RE46C165/6/7/8 PDIP, SOIC DETECT 3 14 STROBE IRED HORNB Functional Block Diagram V ( 276K R2 124K V (14) SS VSEN (15) V – 3. – STROBE (4) Photoamp DETECT ( (1) C2 (2) TEST (16) ...
Page 3
... Note 1: C3 should be located as close as possible to the device power pins typical for an alkaline battery. This capacitance should be increased to 4.7 µF or greater for a carbon battery. 3: R10, R11 and C6 are typical values and may be adjusted to maximize sound pressure. 2010 Microchip Technology Inc. RE46C165/6/7/8 Push-to-Test ...
Page 4
... RE46C165/6/7/8 NOTES: DS22251A-page 4 2010 Microchip Technology Inc. ...
Page 5
... RE46C165/6/7/8 = -25° to +75° 9V Units Conditions V Operating µA COSC = V , LED off SS µA COSC = V , LED off 12V DD mA COSC = STROBE on IRED off ...
Page 6
... RE46C165/6/7/8 DC ELECTRICAL CHARACTERISTICS (CONTINUED) DC Electrical Characteristics: Unless otherwise indicated, all parameters apply at T Typical Application (unless otherwise noted), V Test Parameter Symbol Pin Input Leakage High IH1 I 3, 10, IH2 I HFD Input Pull Down I PD1 Current I PD2 I PDIO1 I PDIO2 Output Off Leakage ...
Page 7
... See timing diagram for Horn Temporal Pattern in 2: See timing diagram for Horn Continuous Pattern in 3: During Timer mode, the LED Period is 10.5 seconds. The LED period will return to 43 seconds at the 4: conclusion of the Timer mode. 2010 Microchip Technology Inc. RE46C165/6/7/8 = 0V. SS Min Typ Max Units Clocks 9 ...
Page 8
... In remote alarm Chamber test or low battery test, no alarm RE46C165/7 only Local or remote alarm, Note 2 RE46C166/8 only Local or remote alarm, Note 3 RE46C165/7 only Local or remote alarm, Note 2 RE46C166/8 only Local or remote alarm, Note 3 RE46C165/7 only Local or remote alarm, Note 2 RE46C165/7 only Local or remote alarm, Note 2 ...
Page 9
... Local alarm start to I/O active RE46C165/7 only No local alarm, I/O active to alarm RE46C166/8 only No local alarm, I/O active to alarm RE46C165/7 only At conclusion of local alarm or test RE46C166/8 only At conclusion of local alarm or test Maximum I/O pulse width filtered RE46C165/6 only No alarm condition RE46C167/8 only No alarm condition DS22251A-page 9 ...
Page 10
... RE46C165/6/7/8 TEMPERATURE CHARACTERISTICS Electrical Specifications: Unless otherwise indicated Parameters Temperature Ranges Specified Temperature Range Operating Temperature Range Storage Temperature Range Thermal Package Resistances Thermal Resistance, 16L-PDIP Thermal Resistance, 16L-SOIC (150 mil) Thermal Resistance, 16L-SOIC (300 mil) DS22251A-page 10 = 9V, Typical Application (unless otherwise noted), ...
Page 11
... Negative Supply (STROBE) Regulated output voltage of V – 5, which is active DD during a test for smoke. This output is the negative side of the photo amplifier reference circuitry. 2010 Microchip Technology Inc. RE46C165/6/7/8 Table 2-1. Function High Gain Capacitor Pin Normal Gain Capacitor Pin Photo Diode Input ...
Page 12
... RE46C165/6/7/8 2.9 Horn Feedback Pin (FEED) Usually this pin is connected to the feedback electrode through a current limiting resistor. If not used, this pin must be connected When the horn is enabled, FEED drives the buffered output HS pin and the complementary output HB pin. 2.10 LED Driver Pin (LED) This pin is an open drain NMOS output used to drive a visible LED ...
Page 13
... If the TEST input pin is activated (V detection is sampled at a high rate. The RE46C166/8 device samples at a period of 330 ms. The RE46C165/7 device has a first sample delay 330 ms. After one sample, the smoke detection rate increases to once every 250 ms. In this mode the high gain capacitor C1 is selected, and background reflections are used to simulate a smoke condition ...
Page 14
... ADJ1 ADJ2 figure) are in place and a high-to-low transition occurs on the TEST input, the device enters a timer mode (10 minutes maximum for RE46C165/6 devices, 1 minute maximum for RE46C167/8). In this mode, the smoke comparator reference is switched from the internal V – 3.5V reference to the voltage that DD appears on VSEN ...
Page 15
... STROBE T HON2 Horn Chamber Test and Warning is Offset from Low Battery Test and Warning by 21.3 Seconds. FIGURE 3-1: RE46C165/6/7/8 Timing Diagram – Standby, Low Battery, Chamber Fail. 2010 Microchip Technology Inc. RE46C165/6/7/8 Function falls below the threshold, the NMOS turns on. DD Standby, No Alarm (not to Scale) ...
Page 16
... STROBE No Alarm Notes: 1. Smoke is not sampled when the horn is active. 2. Low battery warning chirp is suppressed in local or remote alarm 3. IO Dump active only in local alarm, inactive if external alarm FIGURE 3-2: RE46C165/6/7/8 Timing Diagram – Local and Remote Alarm. DS22251A-page PER2 PER3 T PLED2 ...
Page 17
... RE46C165/6/7/8 Timing Diagram – Timer Mode. Alarm, No Low Battery Alarm Memory; No Alarm; No Low Battery LED T T PLED2 ON1 HB TEST FIGURE 3-4: RE46C165/7 Timer Diagram – Alarm Memory Mode. Alarm, No Low Battery Alarm Memory; No Alarm; No Low Battery LED T T PLED2 ON1 HB TEST FIGURE 3-5: RE46C166/8 Timer Diagram – ...
Page 18
... RE46C165/6/7/8 NOTES: DS22251A-page 18 2010 Microchip Technology Inc. ...
Page 19
... In the event the full Microchip part number cannot be marked on one line, it will Note: be carried over to the next line, thus limiting the number of available characters for customer-specific information. 2010 Microchip Technology Inc. RE46C165/6/7/8 Example e 3 RE46C165-V/P^^ 1007256 Example RE46C165 e V/SL 3 1007256 Example RE46C165 e V/SO 3 1007256 ) e 3 DS22251A-page 19 ...
Page 20
... RE46C165/6/7/8 /HDG 3ODVWLF 'XDO ,Q /LQH 3 ± 1RWH N NOTE 1RWHV DS22251A-page 20 PLO %RG\ >3', 2010 Microchip Technology Inc. ...
Page 21
... N NOTE 1RWHV 2010 Microchip Technology Inc. RE46C165/6/7/8 PP %RG\ >62,& α φ A2 β DS22251A-page 21 ...
Page 22
... RE46C165/6/7/8 Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging DS22251A-page 22 2010 Microchip Technology Inc. ...
Page 23
... D N NOTE 1RWHV 2010 Microchip Technology Inc. RE46C165/6/7/8 PP %RG\ >62,& φ α c β DS22251A-page 23 ...
Page 24
... RE46C165/6/7/8 /HDG 3ODVWLF 6PDOO 2XWOLQH 62 ± :LGH 1RWH DS22251A-page 24 PP %RG\ >62,&@ /DQG 3DWWHUQ 2010 Microchip Technology Inc. ...
Page 25
... APPENDIX A: REVISION HISTORY Revision A (May 2010) • Original Release of this Document. 2010 Microchip Technology Inc. RE46C165/6/7/8 DS22251A-page 25 ...
Page 26
... RE46C165/6/7/8 NOTES: DS22251A-page 26 2010 Microchip Technology Inc. ...
Page 27
... RE46C165/7T: CMOS Photoelectric Smoke Detector ASIC (Tape and Reel, SOIC only) RE46C166/8: CMOS Photoelectric Smoke Detector ASIC RE46C166/8T: CMOS Photoelectric Smoke Detector ASIC (Tape and Reel, SOIC only) RE46C165/6: CMOS Photoelectric Smoke Detector ASIC RE46C165/6T: CMOS Photoelectric Smoke Detector ASIC (Tape and Reel, SOIC only) Package E = Plastic Dual In-Line, 300 mil ...
Page 28
... RE46C165/6/7/8 NOTES: DS22251A-page 28 2010 Microchip Technology Inc. ...
Page 29
... Microchip from any and all damages, claims, suits, or expenses resulting from such use. No licenses are conveyed, implicitly or otherwise, under any Microchip intellectual property rights. 2010 Microchip Technology Inc. Trademarks The Microchip name and logo, the Microchip logo, dsPIC, K ...
Page 30
... Taiwan - Kaohsiung Tel: 886-7-536-4818 Fax: 886-7-536-4803 Taiwan - Taipei Tel: 886-2-2500-6610 Fax: 886-2-2508-0102 Thailand - Bangkok Tel: 66-2-694-1351 Fax: 66-2-694-1350 2010 Microchip Technology Inc. EUROPE Austria - Wels Tel: 43-7242-2244-39 Fax: 43-7242-2244-393 Denmark - Copenhagen Tel: 45-4450-2828 Fax: 45-4485-2829 France - Paris ...