BL8506 High-precision Low Voltage Detector Features： Outline: BL8506 is a series of high precision voltage detector with ultra low current consumption (500nA typ. at Vdd=3.0V). It can work at very low voltage, which makes it perfect for system reset. BL8506 is composed of high precision voltage reference, comparator, 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. BL8506 is available in SOT-89-3,SOT-23-3 TO92, SOT23-5 packages which is Pb free. Selection Guide： • • • • • • High-precision detection Voltage： ±2% Detection Voltage：0.9V~6.0V (in 0.1V steps) Precise hysteresis：4% typ. Operating Voltage range：0.7V~10V Ultra-low current consumption：500nA typ. (at VDD＝3.0V) Two Output forms ：CMOS and N-channel open-drain 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 Pin Assignment： BL8506-XX X XX Package Type： RM： SOT-23-3 RN： SOT-23-5 SM： SOT-89-3 T： TO-92 （Default、Pb Free） Output Type： N：Nch Open-drain C：CMOS Detector Voltage： 09……0.9V 30……3.0V …… 50……5.0V 60……6.0V www.belling.com.cn Ver1.1 1 BL8506 Pin Description: PIN Number SOT-89-3 1 2 3 － － TO-92 3 1 2 － － SOT-23-3 1 3 2 － － SOT-23-5 1 2 3 4 5 PIN Name Function VOUT VDD VSS NC NC Voltage detection output Pin Voltage input Pin GND Pin No connection No connection Product Classification: Product Name BL8506-XXNRM BL8506-XXNRN BL8506-XXNSM BL8506-XXNT BL8506-XXCRM BL8506-XXCRN BL8506-XXCSM BL8506-XXCT Detector Voltage XX V XX V XX V XX V XX V XX V XX V XX V Output Type Nch Open-Drain Nch Open-Drain Nch Open-Drain Nch Open-Drain CMOS CMOS CMOS CMOS Package SOT-23-3 SOT-23-5 SOT-89-3 TO-92 SOT-23-3 SOT-23-5 SOT-89-3 TO-92 SOT-89-3 TO-92 SOT-23-5 SOT-23-3 Product Mark Information: Product NO. BL8506-09CSM BL8506-20CT BL8506-27CSM BL8506-30CT …… BL8506-09NRM BL8506-21NRN BL8506-27CRM BL8506-30CRM …… Mark BL8506-09C BL8506-20C BL8506-27C BL8506-30C …… N609 N621 C627 C630 …… www.belling.com.cn Example： BL8506-30NSM BL8506 N30XX Ver1.1 Example： BL8506-30CRM C630 2 BL8506 Block diagram: N channel open-drain CMOS output Absolute Maximum Ratings： Input Voltage range -------------------------------------------------------------------------------------0.3V~12V Output Voltage range-----------------------------------------------------------------------------------0.3V~12V Maximum Output current -----------------------------------------------------------------------------70mA Maximum power dissipation -------------------------------------------------------------------------150mW Ambient temperature ---------------------------------------------------------------------------------- -40~+70°C Storage temperature----------------------------------------------------------------------------------- -40~125°C Lead temperature and time --------------------------------------------------------------------------260°C,10S Recommended Work Conditions： Item Input Voltage range Ambient temperature Min 0.7 -40 Recommended 25 Max 10 70 unit V ℃ Electrical Characteristics： • BL8506-09C/NXX（0.9V） Symbol Parameter -VDET Detector Threshold Detector Threshold Hysteresis Current consumption Maximum operating voltage Minimum Operating voltage VHYS ISS VDDH VDDL IOUT Output current www.belling.com.cn (Topt＝25℃,Unless otherwise specified.) Conditions Min. 0.882 0.018 VDD=2.9V Nch VDS=0.05V，VDD=0.7V VDS=0.50V，VDD=0.8V Ver1.1 0.01 0.05 Reference data Typ. Max. 0.9 0.918 Unit V 0.036 0.054 V 1 1.5 uA 10 V 0.5 V 0.05 0.50 mA 3 BL8506 Pch VDS=-2.1V，VDD=4.50V TPLH • Symbol Parameter -VDET Detector Threshold Detector Threshold Hysteresis Current consumption Maximum operating voltage Minimum Operating voltage ISS VDDH VDDL IOUT TPLH • Output current 20 Conditions -VDET Detector Threshold Detector Threshold Hysteresis Current consumption Maximum operating voltage Minimum Operating voltage VHYS ISS VDDH VDDL IOUT Min. 2.646 VDD=4.7V Output current • Nch VDS=0.05V， VDD=0.70V Pch VDS=-2.1V， VDD=4.50V 0.162 V 0.5 1 uA 10 V -VDET VHYS Detector Threshold Detector Threshold www.belling.com.cn V mA 0.05 1.0 2.0 mA 20 uS (Topt＝25℃,Unless otherwise specified.) Conditions Min. 2.94 0.060 VDD=5.0V Reference data Typ. Max. 3.0 3.06 Unit V 0.12 0.18 V 0.5 1 uA 10 V 0.5 Nch VDS=0.05V，VDD=0.7V V mA 0.01 0.05 1.0 2.0 mA 20 BL8506-34C/NXX（3.4V） Parameter V 0.108 0.01 Output Delay Time Symbol Unit 0.5 Pch VDS=-2.1V，VDD=4.50V TPLH Reference data Typ. Max. 2.7 2.754 0.054 BL8506-30C/NXX（3.0V） Parameter uS (Topt＝25℃,Unless otherwise specified.) Output Delay Time Symbol mA 2.0 Output Delay Time BL8506-27C/NXX（2.7V） VHYS 1.0 uS (Topt＝25℃,Unless otherwise specified.) Conditions Ver1.1 Min. 3.332 0.068 Reference data Typ. Max. 3.4 3.468 0.136 0.204 Unit V V 4 BL8506 ISS VDDH VDDL IOUT Hysteresis Current consumption Maximum operating voltage Minimum Operating voltage Output current VDD=5.0V 0.5 • Nch VDS=0.05V，VDD=0.7V -VDET Detector Threshold Detector Threshold Hysteresis Current consumption Maximum operating voltage Minimum Operating voltage VHYS ISS VDDH VDDL IOUT Output current Conditions 0.01 0.05 1.0 2.0 mA uS Reference data Min. Typ. Max. 4.312 4.4 4.488 0.088 VDD=6.4V Unit V 0.176 0.264 V 0.5 1 uA 10 V 0.5 Nch VDS=0.05V，VDD=0.7V Output Delay Time www.belling.com.cn V (Topt＝25℃,Unless otherwise specified.) Pch VDS=-2.1V，VDD=8.0V TPLH V 20 BL8506-44C/NXX（4.4V） Parameter 10 mA Output Delay Time Symbol uA 0.5 Pch VDS=-2.1V，VDD=4.50V TPLH 1 V mA 0.01 0.05 1.5 3.0 mA 20 Ver1.1 uS 5 BL8506 Electrical Characteristics By Detector Threshold Detector Threshold Detector Threshold Hysteresis Supply Current1 -Vdet[V] Vhys[V] Iss1[uA] Part Number Min. Typ. Max. Min. Typ. Max. BL8506-09XXX 0.882 0.900 0.918 0.018 0.036 0.054 BL8506-10XXX 0.980 1.000 1.020 0.020 0.040 0.060 BL8506-11XXX 1.078 1.100 1.122 0.022 0.044 0.066 BL8506-12XXX 1.176 1.200 1.224 0.024 0.048 0.072 BL8506-13XXX 1.274 1.300 1.326 0.026 0.052 0.078 BL8506-14XXX 1.372 1.400 1.428 0.028 0.056 0.084 BL8506-15XXX 1.470 1.500 1.530 0.030 0.060 0.090 BL8506-16XXX 1.568 1.600 1.632 0.032 0.064 0.096 BL8506-17XXX 1.666 1.700 1.734 0.034 0.068 0.102 BL8506-18XXX 1.764 1.800 1.836 0.036 0.072 0.108 BL8506-19XXX 1.862 1.900 1.938 0.038 0.076 0.114 BL8506-20XXX 1.960 2.000 2.040 0.040 0.080 0.120 BL8506-21XXX 2.058 2.100 2.142 0.042 0.084 0.126 BL8506-22XXX 2.156 2.200 2.244 0.044 0.088 0.132 BL8506-23XXX 2.254 2.300 2.346 0.046 0.092 0.138 BL8506-24XXX 2.352 2.400 2.448 0.048 0.096 0.144 BL8506-25XXX 2.450 2.500 2.550 0.050 0.100 0.150 BL8506-26XXX 2.548 2.600 2.652 0.052 0.104 0.156 BL8506-27XXX 2.646 2.700 2.754 0.054 0.108 0.162 BL8506-28XXX 2.744 2.800 2.856 0.056 0.112 0.168 BL8506-29XXX 2.842 2.900 2.958 0.058 0.116 0.174 BL8506-30XXX 2.940 3.000 3.060 0.060 0.120 0.180 BL8506-31XXX 3.038 3.100 3.162 0.062 0.124 0.186 BL8506-32XXX 3.136 3.200 3.264 0.064 0.128 0.192 BL8506-33XXX 3.234 3.300 3.366 0.066 0.132 0.198 BL8506-34XXX 3.332 3.400 3.468 0.068 0.136 0.204 BL8506-35XXX 3.430 3.500 3.570 0.070 0.140 0.210 BL8506-36XXX 3.528 3.600 3.672 0.072 0.144 0.216 BL8506-37XXX 3.626 3.700 3.774 0.074 0.148 0.222 BL8506-38XXX 3.724 3.800 3.876 0.076 0.152 0.228 BL8506-39XXX 3.822 3.900 3.978 0.078 0.156 0.234 BL8506-40XXX 3.920 4.000 4.080 0.080 0.160 0.240 BL8506-41XXX 4.018 4.100 4.182 0.082 0.164 0.246 BL8506-42XXX 4.116 4.200 4.284 0.084 0.168 0.252 BL8506-43XXX 4.214 4.300 4.386 0.086 0.172 0.258 BL8506-44XXX 4.312 4.400 4.488 0.088 0.176 0.264 BL8506-45XXX 4.410 4.500 4.590 0.090 0.180 0.270 BL8506-46XXX 4.508 4.600 4.692 0.092 0.184 0.276 BL8506-47XXX 4.606 4.700 4.794 0.094 0.188 0.282 BL8506-48XXX 4.704 4.800 4.896 0.096 0.192 0.288 BL8506-49XXX 4.802 4.900 4.998 0.098 0.196 0.294 BL8506-50XXX 4.900 5.000 5.100 0.100 0.200 0.300 BL8506-51XXX 4.998 5.100 5.202 0.102 0.204 0.306 BL8506-52XXX 5.096 5.200 5.304 0.104 0.208 0.312 BL8506-53XXX 5.194 5.300 5.406 0.106 0.212 0.318 BL8506-54XXX 5.292 5.400 5.508 0.108 0.216 0.324 BL8506-55XXX 5.390 5.500 5.610 0.110 0.220 0.330 BL8506-56XXX 5.488 5.600 5.712 0.112 0.224 0.336 BL8506-57XXX 5.586 5.700 5.814 0.114 0.228 0.342 BL8506-58XXX 5.684 5.800 5.916 0.116 0.232 0.348 BL8506-59XXX 5.782 5.900 6.018 0.118 0.236 0.354 BL8506-60XXX 5.880 6.000 6.120 0.120 0.240 0.360 www.belling.com.cn Ver1.1 Condition Vdd= (-Vdet) +0.1V Typ. 0.5 Supply Current2 Iss2[uA] Max. 1.0 Condition Typ. Max. 1.0 1.5 0.5 1.0 Vdd= (-Vdet) +2V 6 BL8506 Output Minimum Detector Threshold Delay Operating Temperature Time Voltage Coefficient Iout1[mA] Iout2[mA] TPLH[us] VDDL[V] ∆-VDET/∆Tppm/°C Condition Min. Typ. Condition Min. Typ. Max. Typ. Max. Condition Typ. Output Current1 NCH, VDS=0.05V, 0.01 0.05 VDD=0.7V www.belling.com.cn Output Current2 Vdd=0.85V 0.1 0.5 Vdd=1.0V 0.2 1.0 NCH, VDS=0.5V 20 VDD=1.5V Ver1.1 1.0 2.0 0.5 0.7 -40°C≤ Topt ≤85°C ±100 7 BL8506 Function description: Comparator 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 Rb and Rc, is applied to the positive input of the comparator. Output of the comparator controls a pair of NMOS and PMOS switches, generating the hysteresis. Output of the comparator passes a series of buffer to drive the output CMOS pair. + VDET，- VDET，VHYS can be calculated as follows: - VDET =VREF*(1+Ra/(Rb+Rc)) + VDET =VREF*(1+(Ra+Rd)/Rb)= VREF *(1+(Ra+Rc)/Rb) VHYS=+ VDET -(- VDET)= VREF*(Ra+Rb+Rc)(1/Rb-1/(Rb+Rc)) www.belling.com.cn Ver1.1 8 BL8506 No. I II III Operation status VDD>-VDET VDD drops below - VDET VDD drops further below Output status Output voltage is equal to the supply voltage Output voltage equals to GND level Output voltage is undefined IV V VDDL VDD rises above VDDL VDD rises above + VDET Output voltage equals to GND level Output voltage equals to supply voltage，VHYS=(+ VDET)-(- VDET) www.belling.com.cn Ver1.1 9 BL8506 Test circuits： （1）Supply current test circuit （2）Detector threshold test circuit （3）NCH Drive Output Current Test Circuit （4）PCH Drive Output Current Test Circuit www.belling.com.cn Ver1.1 10 BL8506 Typical Performance Characteristics： 1) Output voltage VS. Input voltage Detector threshold= 0.9V （ 25°C） Vin(high to low) Vin(low to high) 1.2 Vin(high to low) Vin(low to high) 1.4 Output voltage (V) 1 0.8 0.6 0.4 0.2 1.2 1.0 0.8 0.6 0.4 0.9 1.1 1.3 1.5 0.5 Input voltage (V) Output voltage (V) Output voltage (V) Vin(high to low) 2.5 Vin(low to high) 2.0 1.5 1.0 0.5 2.5 2.7 2.9 1.1 1.3 0.5 1.5 1.5 1.0 0.5 0.0 2.8 3.0 3.2 3.4 2.5 Vin(low to high) 2.0 1.5 1.0 0.5 1.3 1.5 Vin(high to low) 2.5 Vin(low to high) 2.0 1.5 1.0 0.5 0.0 2.5 2.7 2.9 3.1 2.3 Vin(hi gh to low) 3.0 2.5 Vin(lo w to high) 2.0 2.5 2.7 2.9 3.1 Input voltage (V) Detector threshold=3.0V （25°C） 1.5 1.0 0.5 Detector threshold=3.0V （70°C） Vin(hig h to low) 3.0 2.5 Vin(low to high) 2.0 1.5 1.0 0.5 0.0 2.6 Input voltage (V) www.belling.com.cn 1.1 3.0 Vin(high to low) 0.0 2.6 0.9 Input voltage (V) Input voltage (V) Output voltage (V) 2.0 0.7 3.0 3.1 Vin(h igh to low) Vin(l ow to high) 2.5 0.4 Detector threshold=2.7V （70°C） 2.3 Detector threshold=3.0V （-40°C） 3.0 0.6 Detector threshold=2.7V （25°C） Input voltage (V) Output voltage (V) 0.9 0.0 0.0 2.3 0.8 Input voltage (V) Detector threshold=2.7V （-40°C） 3.0 0.7 Output voltage (V) 0.7 1.0 0.0 0.0 0.5 1.2 0.2 0.2 0 Vin(high to low) Vin(low to high) 1.4 Output voltage (V) Output voltage (V) 1.4 Detector threshold= 0.9V （ 70°C） Output voltage (V) Detector threshold= 0.9V （ -40°C） 2.8 3.0 3.2 Input voltage (V) Ver1.1 3.4 2.6 2.8 3.0 3.2 Input voltage (V) 11 3.4 BL8506 Detector threshold=4.4V （25°C） 2.0 1.0 Output voltage (V) 3.0 Detector threshold=4.4V （70°C） Vin(hi gh to low) 4.0 Output voltage (V) Vin(hi gh to low) Vin(lo w to high) 4.0 Vin(lo w to high) 3.0 2.0 1.0 0.0 0.0 4.0 4.2 4.4 4.6 4.8 Vin(hi gh to low) 4.0 Vin(lo w to high) 3.0 2.0 1.0 0.0 4.0 Input voltage (V) 4.2 4.4 4.6 4.8 4.0 Input voltage(V) 4.2 4.4 4.6 Input voltage (V) 2) Supply current VS. Input voltage Detector threshold= 0.9V Detector threshold=2.7V 1.E-05 Supply current (A) Supply current(A) 1.E-05 1.E-06 -40ºC 1.E-07 25ºC 70ºC 1.E-06 -40ºC 1.E-07 25ºC 70ºC 1.E-08 1.E-08 0 1 2 3 4 5 6 0 1 2 3 4 Input voltage (V) Input voltage (V) Detector threshold=3.0V Detector threshold=4.4V 1.E-05 5 6 1.E-05 Supply current (A) Supply current(A) Output voltage (V) Detector threshold=4.4V （-40°C） 1.E-06 -40ºC 1.E-07 25ºC 1.E-06 1.E-07 -40ºC 25ºC 70ºC 70ºC 1.E-08 1.E-08 0 1 2 3 4 5 6 Input voltage (V) www.belling.com.cn 0 1 2 3 4 5 6 Input voltage (V) Ver1.1 12 4.8 BL8506 3) Detector Threshold Hysteresis VS. Temperature Detector threshold=2.7V 0.95 0.94 0.93 0.92 0.91 0.90 0.89 0.88 0.87 0.86 0.85 2.78 Detector threshold(V) Detector threshold (V) Detector threshold= 0.9V 2.74 2.70 2.66 2.62 2.58 2.54 -50 -30 -10 10 30 50 70 90 -50 -30 -10 Temperature (°C) 30 50 70 90 50 70 90 Temperature(°C) Detector threshold=4.4V Detector threshold=3.0V 4.50 3.04 4.48 3.02 Detector threshold(V) Detector threshold(V) 10 3.00 2.98 2.96 2.94 2.92 4.46 4.44 4.42 4.40 4.38 4.36 4.34 4.32 2.90 -50 -30 -10 10 30 50 70 90 4.30 -50 Temperature(°C) -30 -10 10 30 Temperature(°C) www.belling.com.cn Ver1.1 13 BL8506 4）Nch Driver Output Current VS. VDS BL8506-09CXX BL8506-27CXX 8.00E-04 1.20E-02 1.00E-02 6.00E-04 Output current（A) Output current（A) 7.00E-04 5.00E-04 4.00E-04 3.00E-04 2.00E-04 VDD=0.7V VDD=0.8V 1.00E-04 0.00E+00 0.00 0.20 0.40 0.60 8.00E-03 6.00E-03 4.00E-03 VDD=1.0V VDD=2.0V 2.00E-03 0.00E+00 0.00 0.80 0.50 VDS (V) 2.00 2.50 BL8506-44CXX 1.20E-02 2.50E-02 Output current（A) 1.00E-02 Output current（A) 1.50 VDS (V) BL8506-30CXX 8.00E-03 6.00E-03 4.00E-03 VDD=1.0V VDD=2.0V 2.00E-03 0.00E+00 0.00 1.00 0.50 1.00 1.50 2.00 2.50 VDS (V) www.belling.com.cn 2.00E-02 1.50E-02 1.00E-02 VDD=1.0V VDD=2.0V VDD=3.0V 5.00E-03 0.00E+00 0.00 1.00 2.00 3.00 4.00 VDS (V) Ver1.1 14 BL8506 5）NCH Driver Output Current vs. Input Voltage Detector threshold=2.7V 1.E-02 -40ºC Output Current Iout (A) Output Current Iout (A) 1.E-02 Detector threshold=3.0V 25ºC 75ºC 8.E-03 4.E-03 0.E+00 -40ºC 25ºC 75ºC 8.E-03 4.E-03 0.E+00 0 1 2 3 0 1 Input Voltage Vin (V) 2 3 Input Voltage Vin (V) 6）PCH Driver Output Current vs. Input Current Detector threshold=2.7V Detector threshold=0.9V 20.0 Output Current Iout（mA） Output Current Iout(mA) 8.0 VDS=0.5V VDS=0.7V 6.0 4.0 2.0 0.0 VDS=0.5V VDS=1.0V VDS=1.5V VDS=2.0V 15.0 10.0 5.0 0.0 0 2 4 6 8 Input Voltage Vin（V） 0 1 2 3 4 5 6 7 Input Voltage Vin（V） Detector threshold=4.4V Output Current Iout（mA） 25.0 VDS=0.5V VDS=1.0V VDS=1.5V VDS=2.0V 20.0 15.0 10.0 5.0 0.0 0 2 4 6 8 10 Input Voltage Vin（V） www.belling.com.cn Ver1.1 15 BL8506 Typical applications： Note： 1. R0 is unnecessary for CMOS output products. 2. The value of R0 need to be selected in different application, Typical value is 470kΩ www.belling.com.cn Ver1.1 16