TS7221 Single BiCMOS rail-to-rail micropower comparator Features ■ Rail-to-rail inputs ■ Open drain output ■ Supply operation from 2.7V to 10V ■ Typical supply current: 6µA @ 5V ■ Response time of 0.5µs at 5V ■ Low input current ■ ESD protection: 2kV (HBM), 200V (MM) ■ Available in tiny SOT23-5 package L SOT23-5L TS7221 Open drain output Applications ■ Battery-powered systems ■ Notebooks and PDAs ■ PCMCIA cards ■ Cellulars and mobile communication ■ Alarm and security systems ■ Replacement of amplifiers used in comparator configuration for better performance OUT Vcc+ 1 5 2 + IN+ Vcc- 3 4 IN- Description The TS7221 is a micropower comparator featuring rail-to-rail input performance in a tiny SOT23-5 package. This comparator is ideally suited to space and weight-critical applications. It is fully specified at 2.7V, 5V and 10V operation over the industrial temperature range (-40°C to +85°C). The TS7221 features an open drain output stage. The speed-to-power ratio makes this device ultraversatile for a wide range of applications. July 2007 Rev 3 1/11 www.st.com 11 Absolute maximum ratings 1 TS7221 Absolute maximum ratings Table 1. Absolute maximum ratings Symbol Parameter Value Human body model (HBM) 2000 Machine model (MM) 200 ESD Unit V VID Differential input voltage (VCC-) -0.3 to (VCC+) +0.3 V VIN Input voltage(1) (VCC-) -0.3 to (VCC+) +0.3 V VOUT Output voltage 12 V VCC Supply voltage 12 V ±5 mA IIN Current at input pins(1) IOUT Current at output pin ± 30 mA TLead Lead temperature (soldering 10 seconds, Pb-free package) 260 °C Tstg Storage temperature -65 to +150 °C TJ Junction temperature 150 °C 500 mW PD Power dissipation(2) SOT23-5 1. The magnitude of input voltages must never exceed 0.3V beyond the supply voltage. 2. TJ= 150°C, TAMB = 25oC with RTH-JA = 250oC/W for SOT23-5 package. Table 2. Operating conditions Symbol 2/11 Parameter VCC Supply voltage Tamb Ambient temperature Vicm Common mode input voltage range Value Unit 2.7 to 10 V -40 to +85 °C (VCC-) -0.3 to (VCC+) +0.3 V TS7221 Electrical characteristics 2 Electrical characteristics Table 3. Electrical characteristics at VCC+= 2.7V, Tamb = 25°C (unless otherwise specified)(1) Symbol Parameter Min. Typ. Max. Unit VIO Input offset voltage (full common mode range) – TS7221A at Tmin ≤ Tamb ≤ Tmax – TS7221B at Tmin ≤ Tamb ≤ Tmax ΔVIO Input offset voltage drift with temperature 6 IIB Input bias current(2) at Tmin ≤ Tamb ≤ Tmax 1 300 600 pA IIO Input offset current(2) at Tmin ≤ Tamb ≤ Tmax 1 150 300 pA CMRR Common-mode rejection ratio (0 < Vicm < 2.7V) 65 dB PSRR Power supply rejection ratio (2.7 < VCC < 10V) 80 dB 240 dB 7 10 15 18 gain(3) AVD Voltage Vicm Input common mode voltage range at Tmin ≤ Tamb ≤ Tmax IOH High level output voltage (IN+=0.5V, IN-=0V & OUT=10V) VOL Low level output voltage, Isink = 5mA at Tmin ≤ Tamb ≤ Tmax ICC Supply current Output low Output high -0.3 0.0 mV µV/oC 3 2.7 V 0.1 500 nA 0.2 0.35 0.45 V 6 8 12 14 µA TPLH Response time low to high (Vic= 1.35V, CL= 50pF, RL=10kΩ) Overdrive = 10mV Overdrive = 100mV 1.5 0.6 µs TPHL Response time high to low (Vic= 1.35V, CL= 50pF, RL=10kΩ) Overdrive = 10mV Overdrive = 100mV 1.5 0.5 µs TF Fall time CL = 50pF, RL=5kΩ, Overdrive = 10mV 0.3 µs TR Rise time CL = 50pF, RL=5kΩ, Overdrive = 10mV 0.3 µs 1. Limits are 100% production tested at +25°C. Behavior at the temperature range limits is guaranteed through correlation and by design. 2. Maximum values include unavoidable inaccuracies of industrial testing. 3. Design evaluation. 3/11 Electrical characteristics Table 4. TS7221 Electrical characteristics for VCC+= 5V, Tamb = 25°C (unless otherwise specified)(1) Symbol Parameter Min. Typ. Max. Unit VIO Input offset voltage (full common mode range) – TS7221A at Tmin ≤ Tamb ≤ Tmax – TS7221B Tmin ≤ Tamb ≤ Tmax ΔVIO Input offset voltage drift with temperature 6 IIB Input bias current(2) at Tmin ≤ Tamb ≤ Tmax 1 300 600 pA IIO Input offset current(2) at Tmin ≤ Tamb ≤ Tmax 1 150 300 pA CMRR Common-mode rejection ratio (0 < Vicm < 5V) 70 dB PSRR Power supply rejection ratio (2.7 < VCC < 10V) 80 dB 240 dB 7 10 15 18 gain(3) AVD Voltage Vicm Input common mode voltage range at Tmin ≤ Tamb ≤ Tmax IOH High level output voltage (IN+=0.5V, IN-=0V & OUT=10V) VOL Low level output voltage, Isink = 5mA at 25°C at Tmin ≤ Tamb ≤ Tmax ICC Supply current Output low Output high -0.3 0.0 mV µV/oC 5.3 5.0 V 0.1 500 nA 0.2 0.40 0.55 V 6 8 12 14 µA TPLH Response time low to high (Vic= 2.5V, CL = 50pF, RL=10kΩ ) Overdrive = 10mV Overdrive = 100mV 2 0.5 µs TPHL Response time high to low (Vic = 2.5V, CL = 50pF, RL=10kΩ) Overdrive = 10mV Overdrive = 100mV 2 0.4 µs TF Fall time CL = 50pF, RL=5kΩ, Overdrive = 10mV 0.3 µs TR Rise time CL = 50pF, RL=5kΩ, Overdrive = 10mV 0.3 µs 1. Limits are 100% production tested at +25°C. Behavior at the temperature range limits is guaranteed through correlation and by design. 2. Maximum values include unavoidable inaccuracies of industrial testing. 3. Design evaluation. 4/11 TS7221 Table 5. Electrical characteristics Electrical characteristics for VCC+= 10V, Tamb = 25°C (unless otherwise specified)(1) Symbol Parameter Min. Typ. Max. Unit VIO Input offset voltage (full common mode range) – TS7221A at Tmin ≤ Tamb ≤ Tmax – TS7221B Tmin ≤ Tamb ≤ Tmax ΔVIO Input offset voltage drift with temperature 6 IIB Input bias current(2) at Tmin ≤ Tamb ≤ Tmax 1 300 600 pA IIO Input offset current(2) at Tmin ≤ Tamb ≤ Tmax 1 150 300 pA CMRR Common-mode rejection ratio (0 < Vicm < 10V) 75 dB PSRR Power supply rejection ratio (2.7 < VCC < 10V) 80 dB 240 dB 7 10 15 18 gain(3) AVD Voltage VICM Input common mode voltage range at Tmin ≤ Tamb ≤ Tmax -0.3 0.0 mV μV/oC 10.3 10.0 V IOH High level output voltage (IN+=0.5V, IN-=0V & OUT=10V) 0.1 500 nA VOL Low level output voltage, Isink = 5mA at Tmin ≤ Tamb ≤ Tmax 0.2 0.40 0.55 V ICC Supply current Output low Output high 7 10 14 16 TPLH Response time low to high (Vic = 5V, CL = 50pF, RL=10kΩ) Overdrive = 10mV Overdrive = 100mV 3 0.5 μs TPHL Response time high to low (Vic = 5V, CL = 50pF, RL=10kΩ) Overdrive = 10mV Overdrive = 100mV 4 0.4 μs μA TF Fall time CL = 50pF, RL=5kΩ, Overdrive = 10mV 0.3 μs TR Rise time CL = 50pF, RL=5kΩ, Overdrive = 10mV 0.3 μs 1. Limits are 100% production tested at +25°C. Behavior at the temperature range limits is guaranteed through correlation and by design. 2. Maximum values include unavoidable inaccuracies of industrial testing. 3. Design evaluation. 5/11 Electrical characteristics Figure 1. TS7221 Supply current vs. supply voltage (output low) Figure 2. 12 10 Output low No load T=+85°C 8 6 T=-40°C T=+25°C 4 T=+85°C 10 Supply current (µA) Supply current (µA) Supply current vs. supply voltage (output high) 2 8 6 4 2 0 0 2 4 6 8 0 10 Output high 0 2 4 Supply voltage (V) Figure 3. 6 8 10 Supply voltage (V) Output sinking current vs. output voltage at VCC = +2.7V, VCC = +5V VIO vs. Vicm and temperature at VCC = 2.7V Figure 4. 1.0 4 VIO Input offset voltage (mV) VCC = + 5V Output Low Output voltage (V) T=-40°C T=+25°C 0.8 0.6 TAMB=+85°C 0.4 TAMB=+25°C T = -40°C 2 T = +85°C T = +25°C 0 -2 0.2 TAMB=-40°C 0.0 -4 0 2 4 6 8 0.0 10 Figure 5. VIO vs. Vicm and temperature at VCC = 5V Figure 6. 4 1.0 1.5 2.0 2.5 3.0 VIO vs. Vicm and temperature at VCC = 10V 6 T = -40°C 2 T = +85°C T = +25°C 0 -2 VIO Input offset voltage (mV) VIO Input offset voltage (mV) 0.5 VICM Common mode voltage (V) Sink current (mA) 4 2 T = +25°C 0 T = +85°C -2 -4 T = -40°C -4 0 1 2 3 4 VICM Common mode voltage (V) 6/11 5 -6 0 2 4 6 8 VICM Common mode voltage (V) 10 TS7221 Electrical characteristics Figure 7. TPLH vs Vicm at VCC = 10V and 10mV Figure 8. overdrive 4 4 TAMB=+25°C RL=10kΩ & CL=50pF TPLH (µs) with 100mV overdrive TPLH (µs) with 10mV overdrive TPLH vs Vicm at VCC = 10V and 100mV overdrive 3 2 1 0 0 5 TAMB=+25°C RL=10kΩ & CL=50pF 3 2 1 0 10 0 Common mode voltage (V) Figure 9. TPLH vs Vicm at VCC = 5V and 10mV Figure 10. TPLH vs Vicm at VCC = 5V and 100mV overdrive overdrive 4 TAMB=+25°C RL=10kΩ & CL=50pF TPLH (µs) with 100mV overdrive TPLH (µs) with 10mV overdrive 10 Common mode voltage (V) 4 3 2 1 0 5 0.0 2.5 TAMB=+25°C RL=10kΩ & CL=50pF 3 2 1 0 5.0 0.0 Common mode voltage (V) 2.5 5.0 Common mode voltage (V) Figure 11. TPHL vs Vicm at VCC = 10V and 10mV Figure 12. TPHL vs Vicm at VCC = 10V and overdrive 100mV overdrive 5 TPHL (µs) with 100mV overdrive TPHL (µs) with 10mV overdrive 5 4 3 TAMB=+25°C RL=10kΩ & CL=50pF 2 1 0 0 5 Common mode voltage (V) 10 4 TAMB=+25°C RL=10kΩ & CL=50pF 3 2 1 0 0 5 10 Common mode voltage (V) 7/11 Electrical characteristics TS7221 Figure 13. TPHL vs Vicm at VCC=5V and 10mV overdrive Figure 14. TPHL vs Vicm at VCC=5V and 100mV overdrive 3 TAMB=+25°C RL=10kΩ & CL=50pF 2 1 0 0.0 2.5 Common mode voltage (V) 8/11 5.0 TPHL (µs) with 100mV overdrive TPHL (µs) with 10mV overdrive 3 TAMB=+25°C RL=10kΩ & CL=50pF 2 1 0 0.0 2.5 Common mode voltage (V) 5.0 TS7221 3 Package information Package information In order to meet environmental requirements, STMicroelectronics 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 STMicroelectronics trademark. ECOPACK specifications are available at: www.st.com. Figure 15. SOT23-5L package mechanical data Dimensions Ref. Millimeters Min. Typ. Mils Max. Min. Typ. Max. A 0.90 1.45 35.4 57.1 A1 0.00 0.15 0.00 5.9 A2 0.90 1.30 35.4 51.2 b 0.35 0.50 13.7 19.7 C 0.09 0.20 3.5 7.8 D 2.80 3.00 110.2 118.1 E 2.60 3.00 102.3 118.1 E1 1.50 1.75 59.0 68.8 e 0.95 37.4 e1 1.9 74.8 L 0.35 0.55 13.7 21.6 9/11 Ordering information 4 TS7221 Ordering information Table 6. Order codes Part number Temperature range Package Packing TS7221AILT Marking K518 SOT23-5L TS7221BILT K519 -40°C, +85°C TS7221AIYLT(1) Tape & reel SOT23-5L (automotive grade) TS7221BIYLT(1) K522 K523 1. Qualified and characterized according to AEC Q100 and Q003 or equivalent, advanced screening according to AEC Q001 & Q 002 or equivalent. 5 Revision history Table 7. 10/11 Document revision history Date Revision Changes 1-Dec-2002 1 Initial release 1-Sep-2005 2 Update of datasheet presentation and format. Change of Tlead temperature in Table 1 on page 2, to reflect change to Pb-free package. Corrections to Vicm upper rail parameters in Electrical characteristics tables. Addition of Pb-free information in Section 3: Package information on page 9. Correction to package mechanical data given in Figure 15 on page 9. 26-Mar-2007 3 Added automotive grade part numbers in Section 4: Ordering information on page 10. 5-Jul-2007 4 Corrected automotive grade part numbers in Table 6: Order codes. TS7221 Please Read Carefully: Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale. Purchasers are solely responsible for the choice, selection and use of the ST products and services described herein, and ST assumes no liability whatsoever relating to the choice, selection or use of the ST products and services described herein. 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