STM6905(2008) View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

STM6905
(Rev.:2008)

Quintuple, ultralow voltage supervisor with push-button reset

STMicroelectronics 

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 (VCC) 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 VCC ≥ 0.8 V

■ Reset delay time (trec) 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

VRST1 (V)

VRST2 (V)

tREC (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 tREC 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

1

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