BL8509CCB3TR263DC

BL8509C Low Voltage Detector With Built-in Delay Circuit DESCRIPTION FEATURES BL8509C is a series of high precision voltage detector with ultra-low current consumption (4.5uA typ. at Vin=3.0V) and a built-in delay circuit. It can work at very low voltage, which makes it perfect for system reset.      BL8509C 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. Only CMOS type is available.  High-Precision Detection Voltage： 3% Detection Voltage：2.63V and 2.93V Built-in Power on Reset Delay time circuit: Refer to Selection Guide Operating Voltage Range:1.2V~6V Ultra-low current consumption: 4.5uA typ. (at Vin＝3.0V) Output Forms: CMOS (Active Low) APPLICATIONS  BL8509C is available in small size SOT-23-3 package which is Pb free.     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 ELECTRICAL CHARACTERISTICS TYPICAL APPLICATION Detector threshold=2.63V 1.E-04 VIN BL8509C LC9008 Supply current (A) VDD VOUT VSS 1.E-05 1.E-06 25℃ 1.E-07 -40℃ 70℃ 1.E-08 0 www.belling.com.cn 1 2 4 Input voltage (V) 6 BL8509C ORDERING INFORMATION PIN CONFIGURATION Product Classification BL8509C □ 1□ 2□ 3□ 4□ 5□ 6 Code Marking XXX: Detector Voltage D:Delay time XXXDC D:200mS Description Temperature&Rohs: C:-40~85C ,Pb Free Rohs Std. Package type: B3:SOT-23-3(A) B3B:SOT-23-3(B) Packing type: TR:Tape&Reel (Standard) Detector Voltage: e.g. 263=2.63V 293=2.93V Delay time: D:200mS Output forms: C:CMOS □1 □2 □3 □4 □5 □6 BL8509CCB3TR□□□ C:CMOS Product Classification BL8509CCB3BTR□□□ Marking XXX: Detector Voltage D:Delay time XXXDC D:200mS C:CMOS Vss VDD Vout Ground Pin Supply Voltage Input Voltage detection output pin ABSOLUTE MAXIMUM RATING Parameter Value Input Voltage Output Voltage range Maximum Output current Ambient Temperature(Ta) Power Dissipation SOT-23-3 Storage Temperature(Ts) Lead Temperature & Time -0.3V-8V -0.3V- 8V 70mA -40C -85C 250mW -40C -150C 260C,10S Note: Exceed these limits to damage to the device. Exposure to absolute maximum rating conditions may affect device reliability. RECOMMENDED WORK CONDITIONS Item Input Voltage Range Ambient Temperature www.belling.com.cn Min Recommended Max. Unit 1.2 -40 25 6 85 V C 2 BL8509C ELECTRICAL CHARACTERISTICS BL8509CCXXTR263DC/N（2.63V） (Topt＝25℃,Unless otherwise specified.) Symbol -VDET ISS VDDH VDDL Parameter Conditions Detector Threshold Current consumption Maximum operating voltage Minimum Operating voltage IOUT 2.551 Reference data Typ. Max. 0.5 2.0 mA Reference data Min. Typ. Max. Unit 1.0 2.63 4.5 2.709 10 10 Unit V uA V V VDD=4.63V Pch VDS=-2.1V，VDD=4.5V Output current Min. BL8509CCXXTR293DC/N（2.93V） (Topt＝25℃,Unless otherwise specified.) Symbol -VDET ISS VDDH VDDL IOUT Parameter Conditions Detector Threshold Current consumption Maximum operating voltage Minimum Operating voltage Output current 2.842 VDD=4.93V Pch VDS=-2.1V，VDD=4.5V 1.0 2.93 4.5 3.018 10 10 0.5 V uA V V 2.0 mA ELECTRICAL CHARACTERISTICS BY OUTPUT DELAY TIME Part Number Test Condition BL8509CCXXTRXXXDC/N VDD=1.0V to Vdet+1.0V www.belling.com.cn 3 Output Delay Time Min. Typ. Max. Unit 180 ms 200 220 BL8509C BLOCK DIAGRAM VDD Vout _ Delay Time circuit + Vref Vss N Channel Open Drain VDD _ Vref Delay Time circuit + Vout Vss CMOS Output FUNCTION DESCRIPTION VDD Ra + _ Vref Delay Vout Rb Vss High precision low temperature co-efficiency reference voltage is applied to the negative input of a comparator. Input voltage, divided by resistor array of Ra and Rb, is applied to the positive input of the comparator. Output of the comparator passes a delay circuit and a series of buffer to drive the output CMOS pair. VDET =VREF*(1+Ra/Rb) www.belling.com.cn 4 BL8509C Ⅰ Ⅱ Ⅳ Ⅲ B Supply A Voltage VDD Ⅴ Detector Treshold(Vdet) Release Voltage Minimum Operating Voltage Vss Output Voltage (Vout) Tdelay Vss No. I II III IV V Operation status Output status VDD>Vdet VDD drops below Vdet VDD drops further below VDDL VDD rises above VDDL VDD rises above Vdet Output voltage is equal to the supply voltage Output voltage equals to GND level Output voltage is undefined Output voltage equals to GND level Output voltage equals to supply voltage after Tdelay TEST CIRCUITS （1）Supply current test circuit （2）Detector threshold test circuit VDD VIN BL8509C LC9008 BL8509C VOUT VOUT VSS （3）NCH Drive Output Current Test Circuit （4）PCH Drive Output Current Test Circuit VDS VDD VIN LC9008 BL8509C VSS www.belling.com.cn VDD VOUT IOUT VIN VDS LC9008 BL8509C VSS 5 VOUT IOUT VDD - VDS BL8509C TYPICAL PERFORMANCE CHARACTERISTICS 1) Supply current VS. Input voltage 2) Detector Threshold VS. Temperature Detector threshold=2.63V Detector threshold=2.63V 2.74 1.E-05 Detector threshold (V) Supply current (A) 1.E-04 1.E-06 25℃ 1.E-07 -40℃ 2.70 2.66 2.62 70℃ 2.58 1.E-08 0 1 2 3 4 Input voltage (V) 5 -50 6 3）Nch Driver Output Current VS. VDS -30 1.2E-02 3.E-02 1.0E-02 8.0E-03 6.0E-03 4.0E-03 VDD=2.0V VDD=1.0V 2.0E-03 -40℃ 25℃ 70℃ 3.E-02 2.E-02 2.E-02 1.E-02 0.E+00 0.0 0.5 1.0 1.5 VDS (V) 2.0 2.5 0 5）PCH Driver Output Current vs. Input Current Detector threshold=2.63V 35 Output Current Iout (mA) 90 5.E-03 0.0E+00 Vsd=0.5 Vsd=1.0 Vsd=1.5 Vsd=2.0 20 15 10 5 0 0 70 Detector threshold=2.63V 4.E-02 Output Current Iout (A) Output Current (A) Detector threshold=2.63V 25 10 30 50 Temperature (℃) 4）NCH Driver Output Current vs. Input Voltage 1.4E-02 30 -10 1 2 3 4 5 6 7 Input Voltage Vin (V) www.belling.com.cn 6 1 2 Input Voltage Vin (V) 3 4 BL8509C PACKAGE LINE Package SOT-23-3 Devices per reel Package dimension： www.belling.com.cn 7 3000Pcs Unit mm