L9374LF datasheet(16/80 Pages) STMICROELECTRONICS

номер детали	L9374LF

подробное описание детали	Four channel valve driver

PDF	80 Pages

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производитель	STMICROELECTRONICS [STMicroelectronics]

домашняя страница	http://www.st.com

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16 / 80 page

Electrical specifications

L9374LF

16/80

DocID025414 Rev 1

3.3.6

Q3 / Q4 (current controller)

(refer to Section 4.5: Current controller for details)

3.3.7

Logic inputs / outputs

Figure 7. Logic inputs

t(n)RES

Resolution of duration

Add. 0 bit D9 = 0

Add. 0 bit D9 = 1

1/f_A

250

500

μs

NBit

Number of bits for duration

t(n)MAX

Max. Duration

Add. 0 bit D9 = 0

Add. 0 bit D9= 1

(25-1) x 250 μs

(25-1) x 500 μs

7.75

15.5

Table 11. PWM output behavior characteristics (continued)

Symbol

Parameter

Condition

Min.

Typ.

Max.

Unit

Table 12. Q3 / Q4 (current controller) electrical characteristics

Symbol

Parameter

Condition

Min.

Typ.

Max.

Unit

IQ3/Q4

Current range

1.8

IQ3/Q4_res

Current resolution

3.5

IQ3/Q4_acc

Current accuracy

Iload = 0 mA to 400 mA

Iload > 400 mA

±24

±6

Table 13. Logic inputs electrical characteristics

Symbol

Parameter

Condition

Min.

Typ.

Max.

Unit

VIn_low Input threshold

-0.3

1.0

VIn_high Input threshold

2.0

3.5

VIn-hys Input threshold hysteresis

100

350

IP-U

Internal pull-up current source

for SPICS, SPICLK, MOSI

0 V ≤ VIn-xy ≤ 2 V

-12

-30

-60

μA

IP-D

Internal pull-down current

source for EN, CLKIN

1 V ≤ VIn-xy ≤ 3.45 V

+12

+30

+60

μA

Cin

Input capacitance

Designed but not tested

3.5

7.5

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