ISO808A datasheet(8/38 Pages) STMICROELECTRONICS

8 / 38 page

Electrical characteristics

9.2 V ≤ VCC ≤ 36 V; 2.75 V ≤ VDD ≤ 5.5 V; -40 °C < TJ < 125 °C, unless otherwise specified.

Table 4. Power section

Symbol

Parameter

Test conditions

Min.

Typ.

Max. Unit

VCC

Operating voltage range

9.2

VCC(THON)

VCC under-voltage turn-on threshold

VDD = 3.3 V, VCC increasing

8.4

9.2

VCC(THOFF)

VCC under-voltage turn-off threshold

VDD = 3.3 V, VCC decreasing

7.7

8.1

VCC(HYS)

VCC under-voltage hysteresis

0.15

VCCclamp

Clamp on VCC pin

Iclamp = 20 mA

VCC(PGON)

VCC Power Good turn-on threshold

VDD = 3.3 V, VCC increasing

16.6

18.7

VCC(PGOFF)

VCC Power Good turn-off threshold

VDD = 3.3 V, VCC decreasing

14.5

16.1

VCC(PG- HYS) VCC Power Good hysteresis

0.5

RDS(ON)

ON state resistance (see Figure 3)

IOUT = 0.5 A, TJ = 25 °C

0.125

0.16

IOUT = 0.5 A, TJ = 125 °C

0.26

ICC

Power supply current

All channels in OFF state, VCC = 36 V

5.5

All channels in ON state, VCC = 36 V

ILGND

Ground disconnection output current

VCC = VGND = 0 V VOUT = -24 V

500

μA

VOUT(OFF)

OFF state output voltage

Channel OFF and IOUT = 0 A

IOUT(OFF)

OFF state output current

Channel OFF and VOUT = 0 V

μA

Table 5. Digital supply voltage

Symbol

Parameter

Test conditions

Min. Typ. Max. Unit

VDD

Operating voltage range

2.75

5.5

VDD(THON)

VDD under-voltage turn-on threshold

VCC = 24 V, VDD increasing

2.55

2.75

VDD(THOFF) VDD under-voltage turn-off threshold

VCC = 24 V, VDD decreasing

2.45

2.65

VDD(HYS)

VDD under-voltage hysteresis

0.04

0.1

IDD

VDD supply current

VDD = 5 V and SPI not transmitting

4.5

VDD = 3.3 V and SPI not transmitting

4.4

5.9

ISO808A, ISO808A-1

Electrical characteristics

DS14170 - Rev 1

page 8/38

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