L9958 datasheet(27/38 Pages) STMICROELECTRONICS

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L9958

Electrical specifications

6.4

Electrical characteristics

Tcase = -40 °C to 125 °C unless otherwise specified,

Vdd = 4.5 V to 5.5 V unless otherwise specified

Vps = 4 V to 28 V unless otherwise specified

All voltages refer to GND. Currents are positive into and negative out of the specified pin.

6.4.1

Device supply

6.4.2

Device supply monitoring

Table 18. Device supply

Pos.

Symbol

Parameter

Test condition

Min.

Typ.

Max.

Unit

1.1

Ips

Power supply current

Vdd < 0.7 V; Vps = 16 V

from -40 °C to 25 °C

μA

Vdd < 0.7 V; Vps = 16 V

at 125 °C

μA

Fpwm = 0, Iout = 0

1.2

Iout

Leakage current on output

Bridge in tri-state

100

μA

1.3

Icc

Logic-supply current

Vdd >Vdd_uv_on

FPWM = 0

FPWM = 20 kHz

(Average value)

Table 19. Device supply monitoring

Pos.

Symbol

Parameter

Test condition

Min.

Typ.

Max.

Unit

2.1

Vps_uv_off

Vps under-voltage threshold

Vps decreasing

2.2

Vps_uv_on

Vps under-voltage threshold

Vps increasing

4.5

2.3

Vps_uv_hyst Vps under-voltage hysteresis

0.1

2.4

Tuv_vps

Vps under-voltage filtering time Vps decreasing

μs

2.5

Vdd_uv_off

Vdd under-voltage threshold

Vdd decreasing

3.7

2.6

Vdd_uv_on

Vdd under-voltage threshold

Vdd increasing

3.3

2.7

Vdd_uv_hyst Vdd under-voltage hysteresis

0.1

2.8

Tuv_Vdd

Vdd under-voltage filtering time Vdd decreasing

μs

2.9

Vdd_ov_off

Vdd over-voltage threshold

Vdd increasing

5.8

6.8

2.10 Vdd-ov_on

Vdd over-voltage threshold

Vdd decreasing

5.5

6.5

2.11 Vdd_ov_hyst Vdd over-voltage hysteresis

0.1

2.12 Tov_Vdd

Vdd over-voltage filtering time

Vdd increasing

100

140

μs

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