This is information on a product in full production.
October 2014 DocID14290 Rev 4 1/19
STM6905
Quintuple, ultralow voltage supervisor with push-button reset
Datasheet - production data
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)
Applications
Set-top boxes
Multi-voltage systems
Cable/satellite applications
Computer systems
Data storage equipment
MSOP8
(TSSOP8) (DS)
Table 1. Device summary
(1)
1. Other reset threshold voltages and t
REC
time-out periods are offered. Contact local ST sales office for availability.
Order code V
RST1
(V) V
RST2
(V) t
REC
(ms) Package
STM6905TZEDS6F
3.078
2.333
210 MSOP8 (TSSOP8)
STM6905TWEDS6F 1.683
STM6905TGEDS6F 1.110
STM6905SYEDS6F
2.955
2.188
STM6905SFEDS6F 1.050
STM6905PWEDS6F 2.866 1.683
www.st.com
Contents STM6905
2/19 DocID14290 Rev 4
Contents
1 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2 Pin descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.1 Push-button reset input (MR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.2 V
CC
primary supply voltage monitoring input . . . . . . . . . . . . . . . . . . . . . . . 7
2.3 V2IN second fixed voltage monitoring input . . . . . . . . . . . . . . . . . . . . . . . . 7
2.4 V
SS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.5 V3IN, V4IN, and V5IN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.6 RST
active-low, open drain reset output . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.1 Setting the adjustable voltage levels for V3IN, V4IN, and V5IN inputs . . . 9
3.2 Power on reset (t
REC
) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4 Voltage monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
5 Maximum rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
6 DC and AC parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
7 Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
8 Part numbering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
9 Package marking information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
10 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
DocID14290 Rev 4 3/19
STM6905 List of tables
3
List of tables
Table 1. Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Table 2. Signal names and functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Table 3. Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Table 4. DC and AC characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Table 5. TSSOP8 3 mm x 3 mm, package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Table 6. Ordering information scheme . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Table 7. Marking description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Table 8. Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

STM6905PWEDS6F

Mfr. #:
Manufacturer:
STMicroelectronics
Description:
Supervisory Circuits Low V/ Low Supply Supervisor
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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