L9952GXP datasheet(48/68 Pages) STMICROELECTRONICS

48 / 68 page

Electrical characteristics

L9952GXP

48/68

Doc ID 13518 Rev 5

7.14

SPI

7.14.1

Input: CSN

The voltages are referred to ground and currents are assumed positive, when the current

flows into the pin. 6V < VS < 18V; 4.5V < V1 < 5.3V; all outputs open; Tj = -40°C...130°C,

unless otherwise specified.

7.14.2

Inputs: CLK, DI, PWM 1, PWM 2

The voltages are referred to ground and currents are assumed positive, when the current

flows into the pin. 6V< VS <18V; 4.5V < V1 < 5.3V; all outputs open; Tj = -40°C...130°C,

unless otherwise specified.

Table 28.

SPI (Input CSN)

Item

Symbol

Parameter

Test condition

Min.

Typ. Max. Unit

7.14.1

VCSNLOW

Input voltage low level

Active mode,

V1 = 5V

0.5

1.0

1.6

7.14.2

VCSNHIGH

Input voltage high level

Active mode,

V1=5V

1.75

2.5

7.14.3

VCSNHYS

VCSNHIGH - VCSNLOW

Active mode,

V1=5V

0.5

1.0

1.5

7.14.4

ICSNPU

CSN pull up current

Active mode and

V1 Standby

mode,V1=5V

-5

-30

-60

µA

7.14.5

ICSNPD

CSN pull-down current

In Vbat- standby

mode

530

µA

Table 29.

Inputs: CLK, DI, PWM 1, PWM 2

Item

Symbol

Parameter

Test condition

Min. Typ. Max. Unit

7.14.6

tset

Delay time from standby

to active mode

Switching from

standby to active

mode. Time until

output drivers are

enabled after CSN

going to high.

160

300

µs

7.14.7

Vin L

Input low level

V1 = 5 V

1.0

2.05

2.5

7.14.8

Vin H

Input high level

V1 = 5 V

1.5

2.8

3.3

7.14.9

Vin Hyst

Input hysteresis

V1 = 5 V

0.4

0.75

1.5

7.14.10

I in

Pull down current at input

Vin = 1.5 V

µA

7.14.11

Cin

(1)

Value of input capacity is not measured in production test. Parameter guaranteed by design.

Input capacitance at input

CSN, CLK, DI and

PWM1,2

0V < V1 < 5.3V

7.14.12

fCLK

SPI input frequency at

CLK

1MHz

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