L9969X datasheet(17/70 Pages) STMICROELECTRONICS

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Table 11. VDD Monitoring parameters

Symbol

Parameter

Condition

Min

Typ Max

Unit

VDD

VDD voltage range at which monitoring circuit

shows defined behavior on pin NABE

VDD_POR

VDD_THL

VDD Undervoltage threshold

4.2

4.4

VDD_THH

VDD Overvoltage threshold

5.25

5.5

tFIL_OFF

Filtering time before switching off, when VDD

voltage goes out of thresholds

135

µs

tFIL_ON

Filtering time before switching on, when VDD

comes back inside thresholds

135

µs

VTEST_THL

VDD Undervoltage threshold during VDD

Monitoring test

5.25

5.5

VTEST_THH

VDD Overvoltage threshold during VDD

Monitoring test

4.2

4.4

VDD_slew

Maximum slew rate on VDD without any change

of parameters of VDD monitoring

500

mV/ µs

∆VDD_THx

Change of VDD_THH or VDD_THL, in case of

inverse current on VS

-0.1

0.1

VABE_INL

NABE input low level

-0.3

1.65

VABE_INH

NABE input high level

3.15

VABE_INHYS NABE input hysteresis

0.15

1.0

IABE_IN

NABE input current

VABE = 18 V

µA

IABE_IN

NABE input current

VABE = 5 V

µA

IABE_IN

NABE input current

0 V < VABE < 1,5 V

µA

VABE_OUTL NABE output voltage when VDD below THL

0 V < VDD < VDD_THL

IABE_OUTL < 2.5 mA

0.0

1.0

VABE_OUTL NABE output voltage when VDD above THH

VDD_THH < VDD < 18 V

IABE_OUTL < 7.5 mA

0.0

1.2

VABE_OUTL Passive output low voltage

Pull down current source to

GND, no load Measure

voltage at NABE (if NABE is

high impedance).

0.0

1.0

tABE

NABE pulse width (minimum width required for

setting/resetting SPI bits or diagnostic information

0.5

1.5

µs

∆IABE

Change of input current of NABE output pin in

case of inverse current on VS

-100

100

µA

L9969x

Electrical specifications

DS14029 - Rev 6

page 17/70

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