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BL8509D Dataheets PDF



Part Number BL8509D
Manufacturers BELLING
Logo BELLING
Description Low Voltage Detector
Datasheet BL8509D DatasheetBL8509D Datasheet (PDF)

BL8509D Low Voltage Detector with Built-in Delay Circuit Outline: BL8509D is a series of high precision voltage detector with ultra low current consumption (500nA typ. at VDD=VTH+1V) and a built-in delay circuit. It can work at very low voltage, which makes it perfect for system reset. BL8509D is composed of high precision voltage reference, comparator, delay circuit, output driver and resistor array. Internally preset detect voltage has a low temperature drift and requires no external trimmin.

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BL8509D Low Voltage Detector with Built-in Delay Circuit Outline: BL8509D is a series of high precision voltage detector with ultra low current consumption (500nA typ. at VDD=VTH+1V) and a built-in delay circuit. It can work at very low voltage, which makes it perfect for system reset. BL8509D is composed of high precision voltage reference, comparator, delay circuit, output driver and resistor array. Internally preset detect voltage has a low temperature drift and requires no external trimming. Two type of output, CMOS and N-channel open-drain are available. BL8509D is available in SOT-23,SOT-233,SOT-23-5 which is Pb free. Selection Guide: Features: • High-precision detection Voltage: ±2% • Detection Voltage:1.6V~5.0V (in 0.1V steps) • Built-in Power on Reset Delay Time circuit:: Refer to Selection Guide • Operating Voltage range:1.0V~6.0V • Ultra-low current consumption:0.9uA typ. (at VDD=3V) • Two Output forms :CMOS and N-channel open- drain (Active Low) Application: • Power monitor for portable equipment such as PDA,DSC,Mobile phone,Notebook,MP3 • CPU and Logic Circuit Reset • Battery Checker • Battery Back-up Circuit • Power Failure Detector 8509D- XXX X X XX Pin Alignment: http://www.belling.com.cn Package type: RM:SOT-23-3 RN:SOT-23-5 RO:SOT-23 Output type: N:Nch C:CMOS Delay time: A:240mS B:50mS C:100mS D:200mS E:400mS Detector voltage: 090……0.9V 100……1.0V 263……2.63V 293……2.93V 300……3.0V 465……4.65V …… 600……6.0V (In 0.1V step) - 1Total 16 Pages 1/1/2013 Product Mark Information: Top View:VZXYW Product Name BL8509D-263 BL8509D-293 BL8509D-263 BL8509D-293 Top Side Mark(VZ) H1 H2 I1 I2 Output Type Nchannel Nchannel CMOS CMOS Top Side Mark(X) A B C D E Delay Times 240mS 50mS 100mS 200mS 400mS Year Y Week W Means assembly year and weeks 2010 2011 2012 2013 0123 1 … 26 27 A…Z BL8509D … … … 52 … Pin Description: SOT-23 1 PIN Number SOT-23-3 SOT-23-5 13 PIN Name VSS Function GND Pin 22 1 VOUT Voltage detection output Pin 33 --- 2 VDD 4 NC 5 NC Voltage input Pin No connection No connection http://www.belling.com.cn - 2Total 11 Pages 1/1/2013 Block diagram: BL8509D N channel open-drain CMOS output Absolute Maximum Ratings: PARAMETER SYMBOL Supply Voltage VDDmax Output Voltage RST,RST Input Current Output Current Power Dissipation Operating Temperature Storage Temperature IDD IOUT PD Topr Tstg RATING 7 GND-0.3 ~VDDmax+0.3 (CMOS Type) GND-0.3 ~7 ( Open Drain Type) 20 20 150 (Not attached PCB) -40 ~ +105 -65 ~ +150 UNIT V V mA mA mW ℃ ℃ Recommended Work Conditions: PARAMETER SYMBOL Operating Temperature Topr RATING -40 ~ +105 UNIT ℃ http://www.belling.com.cn - 3Total 11 Pages 1/1/2013 Electrical Characteristics: BL8509D Parameter Operating voltage Symbol VDD Test Condition Ta=0 to 70℃ Ta=-40 to 105℃ MIN. 1.0 1.1 TYP. - MAX. 6.0 6.0 Unit V Supply Current Reset Threshold Reset Threshold Temp. Coefficient RST output voltage Low (active L type) IDD VTH VTH/⊿T VOL VDD=VTH+1V Ta=25℃ VTH=4.63V Ta=-40 to 85℃ Ta=85 to 105℃ VTH=4.38V Ta=25℃ Ta=-40 to 85℃ Ta=85 to 105℃ Ta=25℃ VTH=3.08V Ta=-40 to 85℃ Ta=85 to 105℃ Ta=25℃ VTH=2.93V VTH=2.63V VTH=1.6~ 5.0V (0.1V step) Ta=-40 to 85℃ Ta=85 to 105℃ Ta=25℃ Ta=-40 to 85℃ Ta=85 to 105℃ Ta=25℃ Ta=-40 to 85℃ Ta=85 to 105℃ VDD=VTH-0.1V, Isink=1.2mA VTH≦3.08V VDD=VTH-0.1V, Isink=3.2mA VTH>3.08V - 4.584 4.500 4.400 4.336 4.250 4.160 3.049 3.000 2.920 2.901 2.850 2.780 2.604 2.550 2.500 -1.0 -2.5 -5.0 - - - 0.5 4.630 - 4.380 - 3.080 - 2.930 - 2.630 - 30 2.0 4.676 4.750 4.860 4.424 4.500 4.560 3.111 3.150 3.230 2.959 3.000 3.080 2.656 2.700 2.760 1.0 2.5 5.0 - µA V % ppm/℃ - 0.3 - 0.4 V RST output voltage High (active L type) VOH VDD=VTH+1V Isink=500µA VTH≦3.08V VDD=VTH+1V, Isink=800µA VTH>3.08V 0.8*VDD VDD-1.5 - - - - V RST output voltage low (active H type) VOL VDD=VTH+1V, Isink=1.2mA VTH≦3.08V VDD=VTH+1V, Isink=3.2mA VTH>3.08V - - 0.3 V - - 0.4 RST output voltage High (active H type) VOH VDD=VTH-0.1V Isink=500µA VTH≦3.08V VDD=VTH-0.1V, Isink=800µA VTH>3.08V 0.8*VDD VDD-1.5 - - - - (Note1)This device is tested at Ta=25℃, over temperature limits guaranteed by design only. (Note2)The parameter is guaranteed by design. V Circuit ① ② ① ① ③ http://www.belling.com.cn - 4Total 11 Pages 1/1/2013 BL8509D Parameter Reset active timeout period VDD to Reset Delay Symbol tdel tTH Tdel Rank Ta=-40 to 85℃ A Ta=85 to 105℃ Ta=-40 to 85℃ B Ta=85 to 105℃ Ta=-40 to 85℃ C Ta=85 to 105℃ Ta=-40 to 85℃ D Ta=85 to 105℃ Ta=-40 to 85℃ E Ta=85 to 105℃ VDD=(VTH+1V) to (VTH-100mV) (Note2) MIN. 140 100 35 25 70 49 140 98 280 196 - TYP. 240 50 - 100 - 200 - 400 - 20 MAX. 310 840 65 98 130 195 260 390 520 780 Unit ms Circuit ④ - µs ④ Output Leakage Current (active L,open drain type) ILEAK VDD=VRST=7V - - 0.1 µA ⑤ (Note1) This device is tested at Ta=25℃, over temperature limits guaranteed by design only . (Note2) The parameter is guaranteed by design. Test Circuit: http://www.belling.com..


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