STM1404ATOHQ6F

P1-P3 P4-P6 P7-P9 P10-P12 P13-P15 P16-P18 P19-P21 P22-P24 P25-P27 P28-P30 P31-P33 P34-P35

STM1404 DC and AC parameters

25/36

Figure 26. STM1404 switchover diagram, condition A (V

BAT

< V

SW

)

Figure 27. STM1404 switchover diagram, condition B (V

BAT

> V

SW

)

AI10463

V

CC

= 3.3V

V

SW

= 2.4V

V

BAT

V

BAT

– 75mV

V

BAT

– 35mV

V

RST

V

OUT

AI10464

V

CC

= 3.3V

V

SW

= 2.4V

V

BAT

V

SW

+ 40mV

V

OUT

Table 6. DC and AC characteristics

Sym

Alter-

native

Description Test condition

(1)

Min Typ Max Unit

V

CC

,

V

BAT

(2)

Operating voltage T

A

= –40 to +85°C 2.2 3.6 V

I

CC

V

CC

supply current

(STM1404A)

Typ @ 3.3 V, 25°C

50 65 µA

V

CC

supply current

(STM1404B,C)

35 50 µA

V

CC

supply current in

battery backup mode

Excluding I

OUT

(V

BAT

= 2.3 V, V

CC

= 2.0

V, M R = V

CC

)

25 35 µA

I

BAT

(3)

V

BAT

supply current in

battery backup mode

Excluding I

OUT

(V

BAT

= 3.6 V)

5.3 8.0 µA

V

OUT1

V

OUT

voltage (active)

I

OUT1

= 5 mA

(4)

(V

CC

> V

SW

)

V

CC

– 0.03

V

CC

–

0.015

V

I

OUT1

= 80 mA

(V

CC

> V

SW

)

V

CC

– 0.3 V

CC

– 0.15 V

I

OUT1

= 250 µA,

V

CC

> V

SW

(4)

V

CC

–

0.0015

V

CC

–

0.0006

V

V

OUT2

V

OUT

voltage

(battery

backup)

I

OUT2

= 250 µA,

V

BAT

= 2.2 V

V

BAT

– 0.1 V

BAT

– 0.04 V

I

OUT2

= 1 mA,

V

BAT

= 2.2 V

V

BAT

– 0.16 V

V

TPU1

Internal switched

supply voltage (active)

I

SOURCE

= 5 mA

(V

CC

> V

SW

)

V

CC

– 0.3 V

DC and AC parameters STM1404

26/36

V

TPU2

Internal switched

supply voltage (battery

backup)

I

SOURCE

= 1 mA

(V

BAT

= 2.2 V)

V

BAT

– 0.10 V

I

LI

Input leakage current

(MR)

MR

= 0 V; V

CC

= 3V 20 75 350 µA

Input leakage current

(PFI)

0 V = V

IN

= V

CC

–25 2 +25 nA

Input leakage current

(TP1-TP4)

0 V = V

IN

= V

CC

–1 +1 µA

I

LO

Output leakage current 0 V = V

IN

= V

CC

(5)

–1 +1 µA

V

IH

Input high voltage (MR)

V

RST

(max) < V

CC

< 3.6 V

0.7V

CC

V

V

IL

Input low voltage (MR)0.3V

CC

V

V

OL

Output low voltage

(PFO, RST, Vccsw,

SAL

, BLD)

V

CC

= V

RST

(max),

I

SINK

= 3.2 mA

0.3 V

V

OL

Output low voltage

(RST)

I

OL

= 40 µA; V

CC

= 1.0 V;

V

BAT

= V

CC

;

T

A

= 0°C to 85°C

0.3 V

I

OL

= 200 µA;

V

CC

= 1.2 V; V

BAT

= V

CC

0.3 V

Table 6. DC and AC characteristics (continued)

Sym

Alter-

native

Description Test condition

(1)

Min Typ Max Unit

STM1404 DC and AC parameters

27/36

V

OHB

V

OH

battery backup

(Vccsw)

I

SOURCE

= 100 µA 0.8V

BAT

V

Pull-up supply voltage

(open drain)

RST

, SAL, BLD, PFO 3.6 V

Power-fail comparator

V

PFI

PFI input threshold PFI falling (V

CC

< 3.6 V) 1.212 1.237 1.262 V

PFI hysteresis PFI rising (V

CC

< 3.6 V) 10 20 mV

t

PFD

PFI to PFO

propagation delay

2µs

Battery switchover

V

SO

Battery backup

switchover voltage

(6)(7)

Power-

down

V

BAT

> V

SW

V

SW

V

V

BAT

< V

SW

V

BAT

V

Power-up

V

BAT

> V

SW

V

SW

V

V

BAT

< V

SW

V

BAT

V

V

SW

2.4 V

Hysteresis 40 mV

Battery low voltage detect

V

DET

Battery detect

threshold

On power-

up only

M 2.25 2.30 2.34 V

N 2.45 2.50 2.55 V

O 3.14 3.20 3.26 V

Voltage reference (option for STM1404A)

(8)

V

REF

Voltage reference (see

Section 2.9: V

REF

,

reference voltage

output (1.237, typ) on

page 13)

0°C to 85°C 1.212 1.237 1.262 V

–40° to 0°C 1.200 1.237 1.274 V

I

REF+

Source current

0°C to 85°C 15 25 µA

–40° to 0°C 10 15 µA

I

REF–

Sink current 10 13 µA

V

n

Output voltage noise f = 100 Hz to 100 kH 10-100 µV

rms

Table 6. DC and AC characteristics (continued)

Sym

Alter-

native

Description Test condition

(1)

Min Typ Max Unit

P1-P3 P4-P6 P7-P9 P10-P12 P13-P15 P16-P18 P19-P21 P22-P24 P25-P27 P28-P30 P31-P33 P34-P35

STM1404ATOHQ6F

Mfr. #:

Buy STM1404ATOHQ6F

Manufacturer:

STMicroelectronics

Description:

Supervisory Circuits 3V FIPS 140 Security supervisor

Lifecycle:

New from this manufacturer.

Delivery:

DHL FedEx Ups TNT EMS

Payment:

T/T Paypal Visa MoneyGram Western Union

Products related to this Datasheet