STM6905 Datasheet, PDF (1/19 Pages) STMicroelectronics – Quintuple, ultralow voltage supervisor with push-button reset

STM6905
Quintuple, ultralow voltage supervisor
with push-button reset
Features
■ Quintuple voltage monitoring
■ Accurate ±1.8% across temperature voltage
threshold (±1% at 25°C)
■ Primary supply (V_CC) monitor. Fixed (factory -
programmed) reset thresholds: 3.078 V to
2.866 V
■ Second fixed (V2IN) monitor. Fixed (factory-
programmed) reset thresholds: 2.333 V to
1.050 V
■ Three additional adjustable supply monitor
inputs (externally adjustable)
■ 600 mV internal reference
■ RST output (open drain)
■ Output guaranteed for V_CC ≥ 0.8 V
■ Reset delay time (t_rec) on power-up: 210 ms
(typ)
■ Manual reset input (MR)
■ Low supply current of 12 µA (typ)
■ Power supply voltage 0.8 V to 5.5 V
■ RoHS compliant (green package)
■ 8-pin MSOP/TSSOP
■ Operating temperature: –40°C to 85°C
(industrial grade)
MSOP8
(TSSOP8) (DS)
Applications
■ Set-top boxes
■ Multi-voltage systems
■ Cable/satellite applications
■ Computer systems
■ Data storage equipment
Table 1. Device summary⁽¹⁾
Order code
V_RST1 (V)
V_RST2 (V)
t_REC (ms)
Package
STM6905TZEDS6F
3.078
2.333
210
MSOP8(TSSOP8)
STM6905TWEDS6F
3.078
1.683
210
MSOP8(TSSOP8)
STM6905TGEDS6F
3.078
1.110
210
MSOP8(TSSOP8)
STM6905SYEDS6F
2.955
2.188
210
MSOP8(TSSOP8)
STM6905SFEDS6F
2.955
1.050
210
MSOP8(TSSOP8)
STM6905PWEDS6F
2.866
1.683
210
MSOP8(TSSOP8)
1. Other reset threshold voltages and t_REC time-out periods are offered. Minimum order quantities may apply. Contact local
ST sales office for availability.
January 2008
Rev 3
1/19
www.st.com
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