Datasheet

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August 2007 Rev 2 1/9

TS822

2.5V micropower shunt voltage reference

Features

■ 2.50V typical output voltage

■ Ultra low current consumption: 40µA typ.

■ High precision @ 25°C

– ±2% (standard version)

– ±1% (A grade)

■ High stability when used with capacitive loads

■ Industrial temperature range: -40°C to +85°C

■ 100ppm/°C maximum temperature coefficient

Applications

■ Computers

■ Instrumentation

■ Battery chargers

■ Switch mode power supply

■ Battery operated equipment

Description

The TS822 is a low power shunt voltage reference

providing a stable 2.5V output voltage over the

industrial temperature range (-40°C to +85°C).

Availabe in SOT23-3 surface mount package, it

can be designed in applications where space

saving is critical.

The low operating current is a key advantage for

power restricted designs. In addition, the TS822 is

very stable and can be used in a broad range of

application conditions.

SOT23-3L

(Plastic micropackage)

Pin connections

(Top view)

www.st.com

Summary of content (9 pages)

PAGE 1
TS822 2.5V micropower shunt voltage reference Features ■ 2.50V typical output voltage ■ Ultra low current consumption: 40µA typ.
PAGE 2
Absolute maximum ratings and operating conditions 1 TS822 Absolute maximum ratings and operating conditions Table 1. Absolute maximum ratings Symbol Parameter Value Unit Ik Reverse breakdown current 20 mA If Forward current 10 mA 360 mW -65 to +150 °C 2 kV 200 V 260 °C (1) Pd Power dissipation Tstg Storage temperature Human body model SOT23-3 (HBM)(2) ESD Machine model (MM) Tlead (3) Lead temperature (soldering, 10 seconds) 1.
PAGE 3
TS822 Electrical characteristics 2 Electrical characteristics Table 3. TS822 (2% precision) Tamb = 25°C(1) (unless otherwise specified) Symbol Vk Parameter Test conditions Min. Typ. Max. Unit 2.5 2.55 V 50 66 mV Reverse breakdown voltage Ik = 100μA 2.
PAGE 4
Electrical characteristics Figure 1. TS822 Reference voltage versus cathode current Figure 2. Minimum operating current Reference voltage versus cathode current Minimum operating current 3 2.5 Cathode voltage (V) Cathode current (mA) 15 10 5 0 T=+25°C 2 T=+85°C 1.5 T=-40°C 1 0.5 0 -5 -0.5 0 0.5 1 1.5 2 0 2.5 20 Cathode voltage (V) Figure 3. 40 Cathode current (µA) Test circuit Figure 4.
PAGE 5
TS822 Electrical characteristics Figure 7. Test circuit for pulse response at Ik=100µA Pulse response for Ik=100µA Figure 8. Pulse response for Ik=100µA Test circuit for pulse response at Ik=100µA 5 25k ohm Ik=100µA Intput Pulse Generator Output Input 0 2.5 Output 0 0 5 10 15 20 Time (µs) Figure 9. Pulse response for Ik=100µA (detailed part) Figure 10.
PAGE 6
Package information TS822 Figure 13. Pulse response for Ik=100mA (detailed part) Figure 14. Pulse response for Ik=100mA (detailed part) Pulse response for Ik=1mA Detailed part Pulse response for Ik=1mA Detailed part 5V 5V Input Input 0V 2.5V 0V 2.5V Output Output 0V 0V 0 50 100 150 200 Time (ns) 3 0 0.2 0.4 0.6 Time (µs) 0.8 1 Package information In order to meet environmental requirements, STMicroelectronics offers these devices in ECOPACK® packages.
PAGE 7
TS822 Package information Figure 15. SOT23-3 package mechanical data Dimensions Ref. Millimeters Min. Typ. Mils Max. Min. Typ. Max. A 0.890 1.120 35.05 44.12 A1 0.010 0.100 0.39 3.94 A2 0.880 1.020 34.65 b 0.300 0.500 11.81 19.69 C 0.080 0.200 3.15 7.88 D 2.800 3.040 110.26 E 2.100 2.64 82.70 E1 1.200 1.400 47.26 0.950 2.900 1.300 37.41 114.17 51.19 0.950 37.41 e1 1.900 74.82 0.400 L1 k 0.600 15.75 0.540 0° 119.72 103.96 e L 40.17 55.13 23.
PAGE 8
Ordering information 4 TS822 Ordering information Table 5. Order codes Part number Precision TS822ILT 2% TS822AILT 5 Package Packing -40°C to +85°C SOT23-3 Tape & reel Marking L223 1% L222 Revision history Table 6. 8/9 Temperature range Document revision history Date Revision Changes 21-Mar-2002 1 Initial release. 20-Aug-2007 2 Removed information related to TO-92 package. Format update.
PAGE 9
TS822 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.