STM1404_08 datasheet(25/35 Pages) STMICROELECTRONICS

25 / 35 page

STM1404

DC and AC parameters

25/36

Figure 26.

STM1404 switchover diagram, condition A (VBAT < VSW)

Figure 27.

STM1404 switchover diagram, condition B (VBAT > VSW)

AI10463

VCC = 3.3V

VSW = 2.4V

VBAT

VBAT – 75mV

VBAT – 35mV

VRST

VOUT

AI10464

VCC = 3.3V

VSW = 2.4V

VBAT

VSW + 40mV

VOUT

Table 6.

DC and AC characteristics

Sym

Alter-

native

Description

Test condition(1)

Min

Typ

Max

Unit

VCC,

VBAT

(2)

Operating voltage

TA = –40 to +85°C

2.2

3.6

ICC

VCC supply current

(STM1404A)

Typ @ 3.3 V, 25°C

µA

VCC supply current

(STM1404B,C)

µA

VCC supply current in

battery backup mode

Excluding IOUT

(VBAT = 2.3 V, VCC = 2.0

V, MR = VCC)

µA

IBAT

(3)

VBAT supply current in

battery backup mode

Excluding IOUT

(VBAT = 3.6 V)

5.3

8.0

µA

VOUT1

VOUT voltage (active)

IOUT1 = 5 mA

(4)

(VCC > VSW)

VCC – 0.03

VCC –

0.015

IOUT1 = 80 mA

(VCC > VSW)

VCC – 0.3

VCC – 0.15

IOUT1 = 250 µA,

VCC > VSW

(4)

VCC –

0.0015

VCC –

0.0006

VOUT2

VOUT voltage

(battery

backup)

IOUT2 = 250 µA,

VBAT = 2.2 V

VBAT – 0.1

VBAT – 0.04

IOUT2 = 1 mA,

VBAT = 2.2 V

VBAT – 0.16

VTPU1

Internal switched

supply voltage (active)

ISOURCE = 5 mA

(VCC > VSW)

VCC – 0.3

STM1404 Datasheet(PDF) 25 Page - STMicroelectronics

STM1404 Datasheet(HTML) 25 Page - STMicroelectronics

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35

Datasheet Download

Link URL