STM1061

STM1061 Low Power Voltage Detector Features ■ ■ ■ ■ ■ ■ ■ ■ ■ Figure 1. Packages Factory-trimmed Voltage Thresholds in 0.1V Increments from 1.6 to 5.5V ±2% Voltage Threshold Accuracy Operating Voltage 0.7 to 6.0V Open Drain Output Low Supply Current of 0.9µA (typ) Guaranteed OUT Assertion Down to VCC = 0.7V Power Supply Transient Immunity Available in SOT23-3 and SOT323-3 (SC70-3) packages Operating Temperature –40 to 85°C. 1. Contact local sales office for availability. SOT323-3, SC70-3 (W) (1) SOT23-3 (WX) July 2006 Rev 4 1/23 www.st.com 1 Contents STM1061 Contents 1 2 Summary Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Pin Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 2.1 2.2 2.3 OUT (Open Drain) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 VSS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 3 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 3.1 3.2 Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Negative-Going VCC Transients and Undershoot . . . . . . . . . . . . . . . . . . . . 8 4 5 6 7 8 9 Typical Operating Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Maximum Rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 DC and AC Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Package Mechanical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Part Numbering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 2/23 STM1061 List of tables List of tables Table 1. Table 2. Table 3. Table 4. Table 5. Table 6. Table 7. Table 8. Table 9. Table 10. Signal Names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Pin Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Operating and AC Measurement Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 DC and AC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 SOT23-3 – 3-lead Small Outline Transistor Package Mechanical Data . . . . . . . . . . . . . . . 18 SOT323-3 (SC70-3) – 3-lead Small Outline Transistor Package Mechanical Data . . . . . . 19 Ordering Information Scheme. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Factory-Trimmed Thresholds with Marking Description . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Document Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 3/23 List of figures STM1061 List of figures Figure 1. Figure 2. Figure 3. Figure 4. Figure 5. Figure 6. Figure 7. Figure 8. Figure 9. Figure 10. Figure 11. Figure 12. Figure 13. Figure 14. Figure 15. Figure 16. Figure 17. Figure 18. Packages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Logic Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 SOT23-3 Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 SOT323-3 (SC70-3) Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 N-Channel Open Drain Output Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 STM1061N Active-Low, Open Drain Hardware Hookup . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Supply Current vs. Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Supply Current vs. Ambient Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Output Detect Delay Time vs. Ambient Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Output Release Delay Time vs. Ambient Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Maximum Transient Duration vs. Reset Threshold Overdrive . . . . . . . . . . . . . . . . . . . . . . 11 Detect, Release Voltage vs. Ambient Temperature for V TH– = 3.4V . . . . . . . . . . . . . . . . . 11 N-channel Driver Output Current vs. V DS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 N-channel Driver Output Current vs. Input Voltage for V DS = 0.5V . . . . . . . . . . . . . . . . . . 12 AC Testing Input/Output Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Voltage Timing Waveform . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 SOT23-3 – 3-lead Small Outline Transistor Package Outline. . . . . . . . . . . . . . . . . . . . . . . 17 SOT323-3 (SC70-3) – 3-lead Small Outline Transistor Package Outline . . . . . . . . . . . . . . 19 4/23 STM1061 Summary Description 1 Summary Description The STM1061 low power voltage detector provides monitoring of battery, power-supply, and regulated system voltages. A precision voltage reference and comparator monitors the V CC input and compares it with a specified voltage threshold condition. When V CC falls below a specified trip point threshold, the output (OUT) is forced low and remains asserted as long as the VCC input remains below VTH– + hysteresis (VHYST). The STM1061 device is guaranteed to output the correct logic state for VCC down to 0.7V. They are also designed to ignore fast transients on VCC. This small, low power device is ideal for portable applications and is available in spacesaving SOT23-3 and SOT323-3 (SC70-3) packages. Figure 2. Logic Diagram VCC STM1061 OUT VSS AI10477 Table 1. OUT VCC VSS Signal Names Open Drain Active-Low Output Supply Voltage Ground Figure 3. SOT23-3 Connections OUT VSS 1 2 3 VCC AI10478 5/23 Summary Description Figure 4. SOT323-3 (SC70-3) Connections STM1061 VSS OUT 1 2 3 VCC AI10479 Figure 5. N-Channel Open Drain Output Block Diagram VCC R1 + – R2 VREF OUT VSS R3 AI10482 Figure 6. STM1061N Active-Low, Open Drain Hardware Hookup DC/DC Converter VIN VSS R VCC + 3.6V STM1061N (Open Drain) VCC VSS OUT VOUT MCU Suspend VSS VOUT Regulated 3V AI10484a 6/23 STM1061 Pin Descriptions 2 Pin Descriptions See Figure 2 on page 5 and Table 1 on page 5 for a brief overview of the signals connected to this device. 2.1 OUT (Open Drain) This is the Open Drain Output. It goes low when V CC drops below VTH–, and remains low as long as V CC is below VTH– + V HYST. 2.2 VCC This is the Supply voltage and input for the Voltage Detector. 2.3 VSS Ground, VSS, is the reference for the power supply. It must be connected to the system ground. Table 2. Pin Functions Pin SOT23-3 1 3 2 SOT323-3 (SC70-3) 2 3 1 Name Function OUT VCC VSS Active-Low Open Drain Output Supply Voltage Ground 7/23 Operation STM1061 3 3.1 Operation Output The STM1061 Voltage Detector monitors system voltages from 1.6 to 5V in 100mV increments. The detector is designed to ignore fast transients on VCC and has a voltage hysteresis (VHYST). The STM1061 asserts an output signal (OUT) whenever VCC goes below the Voltage Detect Threshold (VTH–). The output signal (OUT) stays asserted until VCC goes above the Voltage Detect Release (VTH+). Output voltage (VOUT) is guaranteed valid down to V CC =0.7V at 25°C. The STM1061has an open drain active-low output which will sink current when output is asserted. Connect a pull-up resistor from OUT to any supply voltage up to 6V (see Figure 6 on page 6). Select a resistor value large enough to register a logic low, and small enough to register a logic high while all of the input current and leakage paths connected to the reset output line are being supplied. A 10k pull-up is sufficient in most applications. The advantages of open drain output is the ability to connect more open drain outputs in parallel (wired OR connections) as well as connect the output to a power supply voltage different from VCC. 3.2 Negative-Going VCC Transients and Undershoot The STM1061 device is relatively immune to negative-going V CC transients (glitches). The graph (see Figure 11 on page 11) indicates the maximum pulse width a negative VCC transient can have without causing a reset pulse. As the magnitude of the transient increases (further below the threshold), the maximum allowable pulse width decreases. Any combination of duration and overdrive which lies under the curve will NOT generate a reset signal. A 0.1µF bypass capacitor mounted as close as possible to the VCC pin provides additional transient immunity. 8/23 STM1061 Typical Operating Characteristics 4 Typical Operating Characteristics Figure 7. 1400 Supply Current vs. Input Voltage 1200 1000 ICC (nA) 800 600 Temp = –40°C Temp = 25°C 200 Temp = 85°C 400 0 0 1 2 3 4 5 6 AI11119b VCC (V) Figure 8. 1250 Supply Current vs. Ambient Temperature Supply Current: ICC (nA) 1000 750 500 VCC = 5V VCC = 3V VCC = 2V 250 0 -40 -20 0 20 40 60 80 AI11120b Ambient Temperature (°C) 9/23 Typical Operating Characteristics Figure 9. Output Detect Delay Time vs. Ambient Temperature STM1061 35.00 VCC-to-OUT Detect Delay: tPD (µs) 30.00 VTH– = 3.4V 25.00 20.00 15.00 10.00 VTH– = 1.6V 5.00 0.00 –40 –20 0 20 40 60 80 AI11121b Ambient Temperature: TA (°C) Figure 10. Output Release Delay Time vs. Ambient Temperature 50.00 45.00 VCC-to-OUT Release Delay: tPR (µs) 40.00 VTH+ = 3.57V 35.00 30.00 25.00 20.00 15.00 VTH+ = 1.68V 10.00 5.00 0.00 –40 –20 0 20 40 60 80 AI11122b Ambient Temperature: TA (°C) 10/23 STM1061 Typical Operating Characteristics Figure 11. Maximum Transient Duration vs. Reset Threshold Overdrive 160 140 Transient Duration (µs) 120 100 80 60 40 20 0 1 10 100 VTH– = 3.4V VTH– = 1.6V 1000 10000 AI11123b Threshold Overdrive (mV) 1. Reset occurs above the curve. Figure 12. Detect, Release Voltage vs. Ambient Temperature for V TH– = 3.4V 3.6 Detect, Release Voltage: VTH–, VTH+ (V) 3.5 Detect Voltage, VTH– Release Voltage, VTH+ 3.4 3.3 –40 –20 0 20 40 60 80 AI11124b Ambient Temperature (°C) 11/23 Typical Operating Characteristics Figure 13. N-channel Driver Output Current vs. V DS STM1061 0.06 VCC = 3.3V VCC = 3.0V 0.05 Output Current: ID (A) 0.04 VCC = 2.7V VCC = 2.1V VCC = 1.5V 0.03 VCC = 1.0V 0.02 0.01 0 0 0.25 0.5 0.75 1 1.25 1.5 AI11125b Output Voltage: VDS (V) Figure 14. N-channel Driver Output Current vs. Input Voltage for V DS = 0.5V 30 25 Output Current: IOUT (mA) Temp. (25°C) 20 Temp. (85°C) Temp. (–40°C) 15 10 5 0 0 0.5 1 1.5 2 2.5 3 AI11126b Input Voltage: VCC (V) 12/23 STM1061 Maximum Rating 5 Maximum Rating Stressing the device above the rating listed in the Table 3: Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only and operation of the device at these or any other conditions above those indicated in the Operating sections of this specification is not implied. Exposure to Absolute Maximum Rating conditions for extended periods may affect device reliability. Refer also to the STMicroelectronics SURE Program and other relevant quality documents. Table 3. Symbol TSTG TSLD (1) Absolute Maximum Ratings Parameter Storage Temperature (V CC Off, VBAT Off) Lead Solder Temperature for 10 seconds Input or Output Voltage Supply Voltage Output Current Power Dissipation Value –55 to 150 260 –0.3 to VCC +0.3 –0.3 to 7.0 20 320 Unit °C °C V V mA mW VIO VCC IO PD 1. Reflow at peak temperature of 260°C (total thermal budget not to exceed 245°C for greater than 30 seconds). 13/23 DC and AC Parameters STM1061 6 DC and AC Parameters This section summarizes the operating measurement conditions, and the DC and AC characteristics of the device. The parameters in the DC and AC characteristics Tables that follow, are derived from tests performed under the Measurement Conditions summarized in Table 4: Operating and AC Measurement Conditions. Designers should check that the operating conditions in their circuit match the operating conditions when relying on the quoted parameters. Table 4. Sym VCC TA Supply Voltage Ambient Operating Temperature Input Rise and Fall Times Input Pulse Voltages Input and Output Timing Ref. Voltages Operating and AC Measurement Conditions Parameter STM1061 0.7 to 6.0 –40 to 85 ≤05 0.2 to 0.8VCC 0.3 to 0.7VCC Unit V °C ns V V Figure 15. AC Testing Input/Output Waveforms 0.8VCC 0.7VCC 0.3VCC AI02568 0.2VCC 14/23 STM1061 Figure 16. Voltage Timing Waveform VCC VTH+ VTH– VCC (min) VSS DC and AC Parameters Release Voltage (VTH+ = VTH– + VHYST) Detect Voltage VOUT tPD Detect Delay VSS tPR Release Delay AI10483 15/23 DC and AC Parameters Table 5. Sym. VCC ICC STM1061 DC and AC Characteristics Description Operating Voltage VCC Supply Current VCC = 3.0V, No Load VCC = 5.5V, No Load VCC = 1.0V 1.0 3.0 5.0 6.0 7.0 VCC = 2.0V VCC = 3.0V VCC = 4.0V VCC = 5.0V Test Condition (1) Min 0.7 0.9 1.1 1.7 14 22 26 30 Typ Max 6.0 3.0 3.6 Unit V µA µA mA mA mA mA mA IOUT Output Current, N-channel (VDS = 0.5V), Reset asserted Voltage Thresholds VTH– Detect Voltage (2) (see Table 9 on page 21 for detailed listing) Release Voltage Threshold Hysteresis VCC falling from (V TH– + 100mV) to (VTH– – 100mV) at 10mV/µs VCC rising from (VTH+ – 100mV) to (VTH+ + 100mV) at 10mV/µs 0.02VTH– VTH– – 2% VTH– VTH– + VHYST 0.05VTH– 0.08VTH– VTH– + 2% V VTH+ VHYST V V tPD VCC to OUT Detect Delay 25 µs tPR VCC to OUT Release Delay 30 200 µs Threshold Temperature Coefficient 1. Valid for Ambient Operating Temperature: TA = 25°C. ±100 ppm/oC 2. Other VTH- threshold are offered. Minimum order quantities may apply. Contact local sales office for availability. 16/23 STM1061 Package Mechanical 7 Package Mechanical In order to meet environmental requirements, ST offers these devices in ECOPACK® packages. These packages have a Lead-free second level interconnect. The category of second Level Interconnect is marked on the package and on the inner box label, in compliance with JEDEC Standard JESD97. The maximum ratings related to soldering conditions are also marked on the inner box label. ECOPACK is an ST trademark. ECOPACK specifications are available at: www.st.com. Figure 17. SOT23-3 – 3-lead Small Outline Transistor Package Outline E E1 B 0.15 M CAB A1 1 e e1 D 0.20 M CAB A 3X 0.10 C C A2 A 3X b C θ L1 C L SOT23-3 1. Drawing is not to scale. 17/23 Package Mechanical Table 6. Symbol Typ A A1 A2 b C D E E1 e e1 L L1 Q N 0.54 0.40 0° 3 0.60 8° Min 0.89 0.01 0.88 0.30 0.08 2.80 2.10 1.20 0.89 1.78 Max 1.12 0.10 1.02 0.50 0.20 3.04 2.64 1.40 1.03 2.05 0.021 0.016 0° 3 Typ Min 0.035 0.001 0.035 0.012 0.003 0.110 0.083 0.047 0.035 0.070 STM1061 SOT23-3 – 3-lead Small Outline Transistor Package Mechanical Data mm inches Max 0.044 0.004 0.042 0.020 0.008 0.120 0.104 0.055 0.041 0.081 0.024 8° 18/23 STM1061 Package Mechanical Figure 18. SOT323-3 (SC70-3) – 3-lead Small Outline Transistor Package Outline E E1 B 0.30 M CAB A1 1 e e1 D 0.10 M CAB A 3X 0.10 C C A2 A 3X b θ1 C θ L1 C L SOT323-3 1. Drawing is not to scale. Table 7. SOT323-3 (SC70-3) – 3-lead Small Outline Transistor Package Mechanical Data mm inches Max 1.10 0.10 1.00 0.40 0.18 2.20 2.40 1.35 Typ Min 0.031 0.000 0.031 0.010 0.004 0.071 0.071 0.045 0.026 0.051 0.45 0.30 30° 12° 0.014 0.004 0° 8° 3 0.018 0.012 30° 12° Max 0.043 0.004 0.039 0.016 0.007 0.087 0.094 0.053 Symbol Typ A A1 A2 b C D E E1 e e1 L L1 Q Θ1 N Min 0.80 0.00 0.80 0.25 0.10 1.80 1.80 1.15 0.65 1.30 0.35 0.10 0° 8° 3 19/23 Part Numbering STM1061 8 Part Numbering Table 8. Example: Ordering Information Scheme STM1061 N xx WX 6 F Device Type STM1061 Output Type N = Open Drain (Active-Low) Threshold Voltage (1) xx = See Table 9 on page 21 Package WX = SOT23-3 W = SOT323-3 (SC70-3) (1) Temperature Range 6 = –40 to 85°C Shipping Method F = ECOPACK Package, Tape & Reel 1. Other thresholds voltage options are offered. Minimum order quantities may apply. Contact local sales office for availability. For other options, or for more information on any aspect of this device, please contact the ST Sales Office nearest you. 20/23 STM1061 Table 9. Suffix Min (–2%) 16 17 19 21 22 23 25 26 27 28 29 30 31 34 38 1.568 1.666 1.862 2.058 2.156 2.254 2.450 2.548 2.646 2.744 2.842 2.940 3.038 3.332 3.724 Typ 1.600 1.700 1.900 2.100 2.200 2.300 2.500 2.600 2.700 2.800 2.900 3.000 3.100 3.400 3.800 Max (+2%) 1.632 1.734 1.938 2.142 2.244 2.346 2.550 2.652 2.754 2.856 2.958 3.060 3.162 3.468 3.876 Part Numbering Factory-Trimmed Thresholds with Marking Description Threshold Voltage VTH– (V) at TA = 25°C (1) Topside Marking 16Nx 17Nx 19Nx 21Nx 22Nx 23Nx 25Nx 26Nx 27Nx 28Nx 29Nx 30Nx 31Nx 34Nx 38Nx 1. Other VTH- thresholds are offered. Minimum order quantities may apply. Contact local sales office for availability. 21/23 Revision History STM1061 9 Revision History Table 10. Date 20-January2004 01-Aug-05 Document Revision History Version 1.0 First Edition Update Operation section, characteristics; insert new graphics; add ECOPACK information ( Figure 7, 8, 9, 10, 11, 12, 13, and 14 ; Table Table 5, 8, and 9 ) Update characteristics, remove ‘push-pull output’ reference (Figure 8, 9, 10, 11, 12, and 16; Table Table 2, , 5, and 8) Status upgrade; update characteristics; add Marking information (Figure 7 , 8, 9, 10, 11 , 12, 13 , and 14; Table Table 8, and 9) Update characteristics (Table 3, and 4) Update Chapter : Features, Figure 1, 5, 6, Table 8 and 9. Description 1.1 02-Sep-05 19-Oct-05 18-Nov-05 27-Jul-2006 1.2 2.0 3.0 4 22/23 STM1061 Please Read Carefully: Information in this document is provided solely in connection with ST products. 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