STM806RDS6F datasheet, PDF - EEWORLD Datasheet

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STM806RDS6F: Description1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO8; CategoryPower/power management The power supply circuit; File Size894KB，42 Pages; ManufacturerSTMicroelectronics; Websitehttp://www.st.com/; Environmental Compliance; Related ProductsFound1parts with similar functions to STM806RDS6F

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STM806RDS6F Overview

1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO8

STM806RDS6F Parametric

Parameter Name	Attribute value
Is it lead-free?	Lead free
Is it Rohs certified?	conform to
Maker	STMicroelectronics
Parts packaging code	SOIC
package instruction	3 X 3 MM, ROHS COMPLIANT, TSSOP-8
Contacts	8
Reach Compliance Code	compli
ECCN code	EAR99
Is Samacsys	N
Other features	RESET THRESHOLD VOLTAGE IS 2.625V
Adjustable threshold	NO
Analog Integrated Circuits - Other Types	POWER SUPPLY SUPPORT CIRCUIT
JESD-30 code	S-PDSO-G8
JESD-609 code	e3
length	3 mm
Humidity sensitivity level	1
Number of channels	1
Number of functions	1
Number of terminals	8
Maximum operating temperature	85 °C
Minimum operating temperature	-40 °C
Package body material	PLASTIC/EPOXY
encapsulated code	TSSOP
Encapsulate equivalent code	TSSOP8,.19
Package shape	SQUARE
Package form	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)	260
power supply	3/5 V
Certification status	Not Qualified
Maximum seat height	1.1 mm
Maximum supply current (Isup)	0.06 mA
Maximum supply voltage (Vsup)	5.5 V
Minimum supply voltage (Vsup)	1.1 V
Nominal supply voltage (Vsup)	3.6 V
surface mount	YES
Temperature level	INDUSTRIAL
Terminal surface	MATTE TIN
Terminal form	GULL WING
Terminal pitch	0.65 mm
Terminal location	DUAL
Maximum time at peak reflow temperature	30
width	3 mm
Base Number Matches	1

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STM690, STM704, STM795

STM802, STM804, STM805, STM806

3 V supervisor with battery switchover

Features

■

RST or RST outputs

NVRAM supervisor for external LPSRAM

Chip enable gating (STM795 only) for external

LPSRAM (7 ns max prop delay)

Manual (push-button) reset input

200 ms (typ) t

rec

Watchdog timer - 1.6 s (typ)

Automatic battery switchover

Low battery supply current - 0.4 µA (typ)

Power-fail comparator (PFI/PFO)

Low supply current - 40 µA (typ)

Guaranteed RST (RST) assertion

down to V

= 1.0 V

Operating temperature:

–40 °C to 85 °C (industrial grade)

RoHS compliance

– Lead-free components are compliant with

the RoHS directive

Device summary

Watchdog

Input

Active- low Active- high

RST

(1)

RST

(1)

✓

(2)

✓

(2)

✓

(2)

✓

Manual

reset

input

SO8 (M)

TSSOP8 3x3 (DS)

(1)

1. Contact local ST sales office for availability.

Table 1.

Battery

Power-fail

switchover comparator

✓

Chip enable

gating

STM690T/S/R

STM704T/S/R

STM795T/S/R

STM802T/S/R

STM804T/S/R

STM805T/S/R

STM806T/S/R

✓

1. All RST outputs push-pull (unless otherwise noted).

2. Open drain output.

August 2010

Doc ID 10519 Rev 9

1/42

www.st.com

Contents

STM690, STM704, STM795, STM802, STM804, STM805, STM806

Contents

Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

1.1

Pin descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

1.1.1

1.1.2

1.1.3

1.1.4

1.1.5

1.1.6

1.1.7

1.1.8

1.1.9

1.1.10

1.1.11

MR (manual reset) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

WDI (watchdog input) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

RST (active-low reset) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

RST (active-high reset - open drain) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

PFI (power-fail input) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

PFO (power-fail output) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

OUT

(supply output voltage) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Vccsw (V

switch output) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

E (chip enable input) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

CON

(conditional chip enable) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

BAT

(backup battery input) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

2.1

2.2

2.3

2.4

2.5

2.6

2.7

2.8

2.9

2.10

2.11

Reset output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Push-button reset input (STM704/806) . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Watchdog input (NOT available on STM704/795/806) . . . . . . . . . . . . . . . 14

Backup battery switchover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Chip enable gating (STM795 only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Chip enable input (STM795 only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Chip enable output (STM795 only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Power-fail input/output (NOT available on STM795) . . . . . . . . . . . . . . . . 17

Applications information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Using a SuperCap™ as a backup power source . . . . . . . . . . . . . . . . . . . 19

Negative-going V

transients . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Typical operating characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

DC and AC parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

2/42

Doc ID 10519 Rev 9

STM690, STM704, STM795, STM802, STM804, STM805, STM806

List of figures

Figure 1.

Figure 2.

Figure 3.

Figure 4.

Figure 5.

Figure 6.

Figure 7.

Figure 8.

Figure 9.

Figure 10.

Figure 11.

Figure 12.

Figure 13.

Figure 14.

Figure 15.

Figure 16.

Figure 17.

Figure 18.

Figure 19.

Figure 20.

Figure 21.

Figure 22.

Figure 23.

Figure 24.

Figure 25.

Figure 26.

Figure 27.

Figure 28.

Figure 29.

Figure 30.

Figure 31.

Figure 32.

Figure 33.

Figure 34.

Figure 35.

Figure 36.

Figure 37.

Figure 38.

Figure 39.

Logic diagram (STM690/802/804/805) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Logic diagram (STM704/806) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Logic diagram (STM795) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

STM690/802/804/805 connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

STM704/806 connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

STM795 connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Block diagram (STM690/802/804/805) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Block diagram (STM704/806) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Block diagram (STM795) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Hardware hookup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Chip enable gating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Chip enable waveform (STM795) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Power-fail comparator waveform (STM690/704/802/804/805/806) . . . . . . . . . . . . . . . . . . 18

Using a SuperCap™ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

to V

OUT

on-resistance vs. temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

BAT

to V

OUT

on-resistance vs. temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Supply current vs. temperature (no load) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Battery current vs. temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

PFI

threshold vs. temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Reset comparator propagation delay vs. temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Power-up t

rec

vs. temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Normalized reset threshold vs. temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Watchdog time-out period vs. temperature. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

E to E

CON

on-resistance vs. temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

PFI to PFO propagation delay vs. temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Output voltage vs. load current (V

= 5 V; V

BAT

= 2.8 V; T

= 25 °C) . . . . . . . . . . . . . . . 25

Output voltage vs. load current (V

= 0 V; V

BAT

= 2.8 V; T

= 25 °C) . . . . . . . . . . . . . . . 26

RST output voltage vs. supply voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

RST output voltage vs. supply voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Power-fail comparator response time (assertion) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Power-fail comparator response time (de-assertion) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Maximum transient duration vs. reset threshold overdrive . . . . . . . . . . . . . . . . . . . . . . . . . 28

E to E

CON

propagation delay vs. temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

E to E

CON

propagation delay test circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

AC testing input/output waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

MR timing waveform . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Watchdog timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

SO8 – 8-lead plastic small outline, 150 mils body width,

package mechanical drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

TSSOP8 – 8-lead, thin shrink small outline, 3 x 3 mm body size, outline. . . . . . . . . . . . . . 38

Doc ID 10519 Rev 9

5/42

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