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TS809 Dataheets PDF



Part Number TS809
Manufacturers Taiwan Semiconductor
Logo Taiwan Semiconductor
Description Microprocessor Reset Circuit
Datasheet TS809 DatasheetTS809 Datasheet (PDF)

TS809/810/809R/810R Series Microprocessor Reset Circuit SOT-23 Pin Definition: TS809/TS810 1. Ground 2. RESET(RESET) 3. Vcc TS809R/TS810R 1. RESET(RESET) 2. Ground 3. Vcc General Description The TS809/810 series are microprocessor (µP) supervisory circuit used to monitor the power supplies in µP and digital systems. They provide excellent circuit reliability and low cost by eliminating external components and adjustments when used with +5V, +3.3V, +3.0V powered circuits. These circuits perfo.

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TS809/810/809R/810R Series Microprocessor Reset Circuit SOT-23 Pin Definition: TS809/TS810 1. Ground 2. RESET(RESET) 3. Vcc TS809R/TS810R 1. RESET(RESET) 2. Ground 3. Vcc General Description The TS809/810 series are microprocessor (µP) supervisory circuit used to monitor the power supplies in µP and digital systems. They provide excellent circuit reliability and low cost by eliminating external components and adjustments when used with +5V, +3.3V, +3.0V powered circuits. These circuits perform a single function: they assert a reset signal whenever the VCC supply voltage declines below a preset threshold, keeping it asserted for at least 140ms after VCC has risen above the reset threshold. Reset thresholds suitable for operation with a variety of supply voltages are available. The TS809/810 series have push pull outputs. The TS809/809R have an active low RESET output, while the TS810/810R has an active high (RESET) output. The reset comparator is designed to ignore fast transients on VCC, and the output guaranteed to be in the correct logic state for VCC down to 1V. Low supply correct makes the TS809/810 series ideal for use in portable equipment. Features ● Highly Accurate: ±2% ● Precision monitoring of +3V, +3.3V and +5V power supply voltage ● Fully specified over temperature ● Available in three output configurations ● Push-Pull RESET low output (TS809/TS809R) ● Push-Pull (RESET) high output (TS810/TS810R) ● 140mS min. power-on reset pulse width ● 12uA supply current ● Guaranteed reset valid to Vcc = +1V ● Power supply transient immunity ● No external components Applications ● Battery-operated systems ● Controllers ● Intelligent instruments ● Critical uP and uC power monitoring ● Portable / Battery powered equipment ● Automotive Pin Descriptions Ordering Information Part No. Package Packing TS809CXx RF SOT-23 3Kpcs / 7” Reel TS810CXx RF SOT-23 3Kpcs / 7” Reel TS809RCXx RF SOT-23 3Kpcs / 7” Reel TS810RCXx RF SOT-23 3Kpcs / 7” Reel Note: x is the threshold voltage type, option as A : 4.63V B : 4.38V C : 4.00V D : 3.08V E : 2.93V F : 2.63V G : 2.32V H : 2.1V I : 2.0V Application Circuit Name Gnd RESET (RESET) Vcc Description Ground RESET – TS809 / TS809R (Active Low) (RESET) – TS810 / TS810R (Active High) Operating voltage input 1/7 Version: A07 TS809/810/809R/810R Series Microprocessor Reset Circuit Absolute Maximum Rating Parameter Symbol Terminal Voltage (with respect to Gnd) RESET & (RESET) push-pull Input Current, VCC Output Current, RESET, (RESET) Rate of Rise, VCC Continuous Power Dissipation Operating Junction Temperature Range Storage Temperature Range Lead Soldering Temperature (260oC) VCC VRESET ICC IO VR PD TOPR TSTG TLEAD Electrical Specifications (Ta = 25oC, unless otherwise noted) Parameter Input Supply Voltage Supply Current Conditions Ta=-40oC~+85oC VIN=VIN *1.10 VIN=VIN *1.10, Ta=-40oC~+85oC TS809/809R/810/810RCXA Symbol VCC ICC TS809/809R/810/810RCXB TS809/809R/810/810RCXC TS809/809R/810/810RCXD Reset Threshold TS809/809R/810/810RCXE TS809/809R/810/810RCXF VTH TS809/809R/810/810RCXG TS809CXH TS809CXI Reset Threshold Temperature Coefficient VCC to Reset Delay VCC = VTH - 100mV Reset Active Timeout Period Ta=-40oC~+85oC TDELAY RESET Output (TS809/R) Voltage Low VCC < VTH(MAX), ISINK =1.2mA VOL RESET Output (TS809/R) Voltage High (RESET) Output (TS810/R) Voltage Low VCC > VTH(MAX), ISOURCE =0.5mA, VCC > 1.8V VCC > VTH(MAX), ISOURCE =0.15mA, 1.8V ≥ VCC >1.0V VCC > VTH(MAX), ISINK =1.2mA VOH VOL (RESET) Output (TS810/R) Voltage High VCC < VTH(MAX), ISOURCE =0.5mA, VCC > 1.8V VCC > VTH(MAX), ISOURCE =0.15mA, 1.8V ≥ VCC >1.0V VOH Maximum 7 - 0.3 ~ (VCC +0.3) 20 20 100 320 -40 ~ +125 -65 ~ +150 10 Unit V V mA mA V/uS mW oC oC S Min Typ Max Unit 1.0 -- 5.5 V -- --- 3.0 5.0 uA 4.56 4.63 4.7 4.31 4.38 4.45 3.94 4.00 4.06 3.03 3.08 3.13 2.89 2.93 2.97 V 2.59 2.63 2.67 2.28 2.32 2.35 2.07 2.1 2.13 1.97 2.0 2.03 30 50 160 ppm/ oC -- 40 -- uS 140 210 500 mS -- -- 0.2 V 0.8 VCC -- -- V -- -- 0.2 V 0.8 VCC -- -- V 2/7 Version: A07 TS809/810/809R/810R Series Microprocessor Reset Circuit Application Note Function Description A microprocessor’s (µP’s) reset input starts the µP In a know state. The TS809/810/809R/810R assert reset to prevent code-execution errors during power-up, power-down, or brownout conditions. They assert a reset signal whenever the Vcc supply voltage declines below a preset threshold, keeping it asserted for at least 140ms after Vcc has risen above the reset threshold. The TS809/810/809R/810R have a push-pull output stage. Applications Information Negative-Going VCC transients in addition to issuing a reset to the µP during power-up, power-down, and brownout conditions, the TS809/810 are relatively immune to short-duration negative-going Vcc transients (glitches). The TS809/810/809R/810R do not generate a reset pulse. The graph was generated using a negative going pulse applied to Vcc, startin.


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