STM1810_10 Datasheet, PDF (1/25 Pages) STMicroelectronics – Low power reset circuit

STM1810 STM1811 STM1812 STM1813
STM1815 STM1816 STM1817 STM1818
Low power reset circuit
Features
■ Precision monitoring of 3 V, 3.3 V, and 5 V
supply voltages
■ Four output configurations:
– Push-pull, active-high (STM1812,1817)
– Push-pull, active-low (STM1810,1815)
– Open-drain, active-low (STM1811,1816)
– Open-drain, active-low with push-button
detect (STM1813,1818)
■ Reset pulse width - 100 ms (min.)
■ Low supply current - 4 µA (typ.)
■ Guaranteed assertion down to V_CC = 1.0 V
(0 °C to 105 °C)
■ Factory-trimmed reset thresholds of 2.55 V,
2.88 V, 3.06 V, 4.37 V, and 4.62 V (typ.)
■ Power supply transient immunity
■ Push-button/manual reset detect
(STM1813/1818)
■ Operating temperature: –40 °C to 105 °C
SOT23-3 (WX)
■ ± 2.5% reset threshold accuracy:
(–40 °C to 105 °C)
■ Available in the SOT23-3 package
■ Fully compatible with DS181x and MXD181x
products.
Table 1. Device summary
Order codes
5V
3.3 V/
3.0 V
Active-low
reset
(push-pull)
Active-low
reset
(open-drain)
Active-high
reset
(push-pull)
STM1810L/M ✔
STM1811L/M ✔
✔
✔⁽¹⁾
STM1812L/M ✔
✔
STM1813L/M ✔
STM1815T/S/R
✔
✔
STM1816T/S/R
✔
✔⁽¹⁾
STM1817T/S/R
✔
✔
STM1818T/S/R
✔
1. Active-low RST with internal pull-up resistor.
Active-low reset
(open-drain,
bidirectional, with MR detect)
✔
✔
September 2010
Doc ID11464 Rev 8
1/25
www.st.com
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