ACE301 High-precision Low Voltage Detector Description ACE301 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. ACE301 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. Features 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 Absolute Maximum Ratings Parameter Max Unit Input Voltage -0.3~10 V Output Voltage -0.3~12 V Maximum Output current 70 mA Maximum power dissipation SOT-23-3 250 SOT-23-5 250 SOT-89-3 500 TO-92 600 mW Ambient temperature -40~+85 ℃ Storage temperature -40~+150 ℃ VER 1.6 1 ACE301 High-precision Low Voltage Detector Packaging Type SOT-23-3 SOT-89-3 SOT-23-5 3 1 5 2 1 2 3 1 TO-92 4 2 3 123 SOT-23-3 SOT-89-3 SOT-23-5 TO-92 Description Function 1 1 1 1 VOUT Voltage detection output Pin 3 2 2 2 VDD Voltage input Pin 2 3 3 3 VSS GND Pin 4 NC No connection 5 NC No connection Ordering information ACE301 X XX XX + H Halogen - free Pb - free BM: SOT-23-3 BN: SOT-23-5 AM: SOT-89-3 EP: TO-92 Detector Voltage 0.9V ~ 6.0V Output type N: Nch / C: CMOS VER 1.6 2 ACE301 High-precision Low Voltage Detector Block diagram N channel open-drain CMOS output Recommended Work Conditions Item Min Input Voltage 0.7 Ambient temperature -40 Recommended 25 Max Unit 10 V 85 ℃ Electrical Characteristics: ACE301C/N09XX + (0.9V) (Topt=25℃, Unless otherwise specified.) Symbol Parameter -VDET Detector Threshold VHYS Detector Threshold Hysteresis ISS Current Consumption VDDH Maximum Operating Voltage VDDL Minimum Operating Voltage IOUT TPLH Output Current Output Delay Time Conditions Reference data Typ. Max. 0.882 0.9 0.918 V 0.018 0.036 0.054 V 1 2.5 uA 10 V VDD=2.9V Nch VDS=0.05V, VDD=0.7V VDS=0.50V, VDD=0.8V Pch VDS=-2.1V, VDD=4.50V Unit Min. 0.5 V 0.01 0.05 0.05 0.50 mA 1.0 2.0 mA 20 VER 1.6 uS 3 ACE301 High-precision Low Voltage Detector ACE301C/N27XX + (2.7V) (Topt=25℃, Unless otherwise specified.) Symbol Parameter -VDET Conditions Reference data Unit Min. Typ. Max. Detector Threshold 2.646 2.7 2.754 V VHYS Detector Threshold Hysteresis 0.054 0.108 0.162 V ISS Current Consumption 1 2.5 uA VDDH Maximum Operating Voltage 10 V VDDL Minimum Operating Voltage IOUT TPLH Output Current VDD=4.7V Nch VDS=0.05V, VDD=0.7V Pch VDS=-2.1V, VDD=4.50V 0.5 V 0.01 0.05 mA 1.0 2.0 mA Output Delay Time 20 uS ACE301C/N30XX + (3.0V) (Topt=25℃, Unless otherwise specified.) Symbol Parameter -VDET Conditions Reference data Unit Min. Typ. Max. Detector Threshold 2.94 3.0 3.06 V VHYS Detector Threshold Hysteresis 0.060 0.12 0.18 V ISS Current Consumption 1 2.5 uA VDDH Maximum Operating Voltage 10 V VDDL Minimum Operating Voltage IOUT TPLH Output Current VDD=5.0V Nch VDS=0.05V, VDD=0.7V Pch VDS=-2.1V, VDD=4.50V 0.5 V 0.01 0.05 mA 1.0 2.0 mA Output Delay Time 20 uS ACE301C/N34XX + (3.4V) (Topt=25℃, Unless otherwise specified.) Symbol Parameter -VDET Conditions Reference data Unit Min. Typ. Max. Detector Threshold 3.332 3.4 3.468 V VHYS Detector Threshold Hysteresis 0.068 0.136 0.204 V ISS Current Consumption 1 2.5 uA VDDH Maximum Operating Voltage 10 V VDDL Minimum Operating Voltage IOUT TPLH Output Current Output Delay Time VDD=5.0V Nch VDS=0.05V, VDD=0.7V Pch VDS=-2.1V, VDD=4.50V 0.5 V 0.01 0.05 mA 1.0 2.0 mA 20 uS VER 1.6 4 ACE301 High-precision Low Voltage Detector ACE301C/N44XX + (4.4V) (Topt=25℃, Unless otherwise specified.) Symbol Parameter -VDET Reference data Conditions Unit Min. Typ. Max. Detector Threshold 4.312 4.4 4.488 V VHYS Detector Threshold Hysteresis 0.088 0.176 0.264 V ISS Current Consumption 1 2.5 uA VDDH Maximum Operating Voltage 10 V VDDL Minimum Operating Voltage IOUT TPLH VDD=6.4V 0.5 V Nch VDS=0.05V, VDD=0.7V 0.01 0.05 mA Pch VDS=-2.1V, VDD=8.0V 1.5 3.0 mA Output Current Output Delay Time 20 uS Electrical Characteristics by Detector Threshold Detector Threshold Part Number Detector Threshold Hysteresis -Vdet[V] Supply Current1 Supply Current2 Iss1[uA] Iss2[uA] Vhys[V] Min. Typ. Max. Min. Typ. Max. ACE301X09XX+ 0.882 0.900 0.918 0.018 0.036 0.054 ACE301X10XX+ 0.980 1.000 1.020 0.020 0.040 0.060 ACE301X11XX+ 1.078 1.100 1.122 0.022 0.044 0.066 ACE301X12XX+ 1.176 1.200 1.224 0.024 0.048 0.072 ACE301X13XX+ 1.274 1.300 1.326 0.026 0.052 0.078 ACE301X14XX+ 1.372 1.400 1.428 0.028 0.056 0.084 ACE301X15XX+ 1.470 1.500 1.530 0.030 0.060 0.090 ACE301X16XX+ 1.568 1.600 1.632 0.032 0.064 0.096 ACE301X17XX+ 1.666 1.700 1.734 0.034 0.068 0.102 ACE301X18XX+ 1.764 1.800 1.836 0.036 0.072 0.108 ACE301X19XX+ 1.862 1.900 1.938 0.038 0.076 0.114 ACE301X20XX+ 1.960 2.000 2.040 0.040 0.080 0.120 ACE301X21XX+ 2.058 2.100 2.142 0.042 0.084 0.126 ACE301X22XX+ 2.156 2.200 2.244 0.044 0.088 0.132 ACE301X23XX+ 2.254 2.300 2.346 0.046 0.092 0.138 ACE301X24XX+ 2.352 2.400 2.448 0.048 0.096 0.144 Condition Vdd= (-Vdet)+0.1V Typ. 0.5 Max. 1.0 Condition Typ. Max. 1.0 2.5 0.5 2.5 Vdd= (-Vdet)+2V VER 1.6 5 ACE301 High-precision Low Voltage Detector ACE301X25XX+ 2.450 2.500 2.550 0.050 0.100 0.150 ACE301X26XX+ 2.548 2.600 2.652 0.052 0.104 0.156 ACE301X27XX+ 2.646 2.700 2.754 0.054 0.108 0.162 ACE301X28XX+ 2.744 2.800 2.856 0.056 0.112 0.168 ACE301X29XX+ 2.842 2.900 2.958 0.058 0.116 0.174 ACE301X30XX+ 2.940 3.000 3.060 0.060 0.120 0.180 ACE301X31XX+ 3.038 3.100 3.162 0.062 0.124 0.186 ACE301X32XX+ 3.136 3.200 3.264 0.064 0.128 0.192 ACE301X33XX+ 3.234 3.300 3.366 0.066 0.132 0.198 ACE301X34XX+ 3.332 3.400 3.468 0.068 0.136 0.204 ACE301X35XX+ 3.430 3.500 3.570 0.070 0.140 0.210 ACE301X36XX+ 3.528 3.600 3.672 0.072 0.144 0.216 ACE301X37XX+ 3.626 3.700 3.774 0.074 0.148 0.222 ACE301X38XX+ 3.724 3.800 3.876 0.076 0.152 0.228 ACE301X39XX+ 3.822 3.900 3.978 0.078 0.156 0.234 ACE301X40XX+ 3.920 4.000 4.080 0.080 0.160 0.240 ACE301X41XX+ 4.018 4.100 4.182 0.082 0.164 0.246 ACE301X42XX+ 4.116 4.200 4.284 0.084 0.168 0.252 ACE301X43XX+ 4.214 4.300 4.386 0.086 0.172 0.258 ACE301X44XX+ 4.312 4.400 4.488 0.088 0.176 0.264 ACE301X45XX+ 4.410 4.500 4.590 0.090 0.180 0.270 ACE301X46XX+ 4.508 4.600 4.692 0.092 0.184 0.276 ACE301X47XX+ 4.606 4.700 4.794 0.094 0.188 0.282 ACE301X48XX+ 4.704 4.800 4.896 0.096 0.192 0.288 ACE301X49XX+ 4.802 4.900 4.998 0.098 0.196 0.294 ACE301X50XX+ 4.900 5.000 5.100 0.100 0.200 0.300 ACE301X51XX+ 4.998 5.100 5.202 0.102 0.204 0.306 ACE301X52XX+ 5.096 5.200 5.304 0.104 0.208 0.312 ACE301X53XX+ 5.194 5.300 5.406 0.106 0.212 0.318 ACE301X54XX+ 5.292 5.400 5.508 0.108 0.216 0.324 ACE301X55XX+ 5.390 5.500 5.610 0.110 0.220 0.330 ACE301X56XX+ 5.488 5.600 5.712 0.112 0.224 0.336 ACE301X57XX+ 5.586 5.700 5.814 0.114 0.228 0.342 ACE301X58XX+ 5.684 5.800 5.916 0.116 0.232 0.348 ACE301X59XX+ 5.782 5.900 6.018 0.118 0.236 0.354 ACE301X60XX+ 5.880 6.000 6.120 0.120 0.240 0.360 VER 1.6 6 ACE301 High-precision Low Voltage Detector Output Current1 Output Current2 Iout1[mA] Condition Min. Iout2[mA] Typ. NCH, VDS=0.05V, 0.01 0.05 VDD=0.7V Condition NCH, VDS=0.5V Min. Typ. Vdd=0.85V 0.1 0.5 Vdd=1.0V 0.2 1.0 VDD=1.5V 1.0 2.0 Output Minimum Delay Operation Time Voltage TPLH[us] VDDL[V] Detector Threshold Temperature Coefficient Δ-VDET/ΔTppm/℃ Max. Typ. Max. Condition Typ. 20 0.5 0.7 -40℃~85℃ 100 Function description 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+Rb)/Rb)=VREF *(1+(Ra+Rc)/Rb) VHYS = +VDET-(-VDET)=VREF*(Ra+Rb+Rc)(1/Rb-1/(Rb+Rc)) VER 1.6 7 ACE301 High-precision Low Voltage Detector No. Operation status Output status Ⅰ VDD>-VDET Output voltage is equal to the supply voltage Ⅱ VDD drops below – VDET Output voltage equals to GNP level Ⅲ VDD drops further below VDDL Output voltage is undefined Ⅳ VDD rises above VDDL Output voltage equals to GNP level Ⅴ VDD rises above + VDET Output voltage equals to supply voltage, VHYS=(+VDET)-(-VDET) Test circuits (1) Supply current test circuit ACE301 (2) Detector threshold test circuit ACE301 VER 1.6 8 ACE301 High-precision Low Voltage Detector (3) NCH Drive Output Current Test Circuit (4) PCH Drive Output Current Test Circuit ACE301 ACE301 Typical Performance Characteristics (1) Output voltage VS. Input Voltage Detector threshold=0.9V (-40℃) Input Voltage (V) Detector threshold=2.7V (-40℃) Input Voltage (V) Detector threshold=0.9V (25℃) Input Voltage (V) Detector threshold=2.7V (25℃) Input Voltage (V) Detector threshold=0.9V (70℃) Input Voltage (V) Detector threshold=2.7V (70℃) Input Voltage (V) VER 1.6 9 ACE301 High-precision Low Voltage Detector Detector threshold=3.0V Detector threshold=3.0V (-40℃) (25℃) Input Voltage (V) Detector threshold=4.4V Detector threshold=3.0V (70℃) Input Voltage (V) Input Voltage (V) Detector threshold=4.4V Detector threshold=4.4V (25℃) (70℃) (-40℃) Input Voltage (V) Input Voltage (V) Input Voltage (V) (2) Supply current VS. Input Voltage Detector threshold=0.9V Input Voltage (V) Detector threshold=2.7V Input Voltage (V) VER 1.6 10 ACE301 High-precision Low Voltage Detector Detector threshold=3.0V Input Voltage (V) Detector threshold=4.4V Input Voltage (V) (3) Detector Threshold Hysteresis VS. Temperature Detector threshold=0.9V Temperature (℃) Detector threshold=3.0V Temperature (℃) Detector threshold=2.7V Temperature (℃) Detector threshold=4.4V Temperature (℃) VER 1.6 11 ACE301 High-precision Low Voltage Detector (4) Nch Driver Output Current VS. VDS ACE301C09XX+ VDS(V) ACE301C30XX+ VDS(V) ACE301C27XX+ VDS(V) ACE301C44XX+ VDS(V) (5) Nch Driver Output Current VS. Input Voltage Detector threshold=2.7V Input Voltage Vin(V) Detector threshold=3.0V Input Voltage Vin(V) VER 1.6 12 ACE301 High-precision Low Voltage Detector (6) PCH Driver Output Current VS. Input Current Detector threshold=0.9V Detector threshold=2.7V Input Voltage Vin(V) Input Voltage Vin(V) Detector threshold=4.4V Input Voltage Vin(V) Typical applications ACE301 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. VER 1.6 13 ACE301 High-precision Low Voltage Detector Packing Information SOT-23-3 VER 1.6 14 ACE301 High-precision Low Voltage Detector Packing Information SOT-89-3 VER 1.6 15 ACE301 High-precision Low Voltage Detector Packing Information SOT-23-5 VER 1.6 16 ACE301 High-precision Low Voltage Detector Packing Information TO-92 VER 1.6 17 ACE301 High-precision Low Voltage Detector Notes ACE does not assume any responsibility for use as critical components in life support devices or systems without the express written approval of the president and general counsel of ACE Electronics Co., LTD. As sued herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and shoes failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury to the user. 2. A critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. ACE Technology Co., LTD. http://www.ace-ele.com/ VER 1.6 18 ACE301 High-precision Low Voltage Detector VER 1.6 19