L6474HTR 查看數據表（PDF） - STMicroelectronics

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产品描述 (功能)

生产厂家

L6474HTR

Fully integrated microstepping motor driver

STMicroelectronics 

L6474

2.2

Electrical data

Recommended operating conditions

Symbol

Table 3. Recommended operating conditions

Parameter

Test condition

Value

Unit

VDD Logic interface supply voltage

VS

Vout_diff

Motor supply voltage

Differential voltage between VSA,

OUT1A, OUT2A, PGND and VSB,

OUT1B, OUT2B, PGND pins

VREG,in Logic supply voltage

VADC

Integrated ADC input voltage

(ADCIN pin)

3.3 V logic outputs

5 V logic outputs

VSA = VSB = VS

3.3

V

5

8

45 V

VSA = VSB = VS

45 V

VREG voltage imposed by

external source

3.2 3.3

V

0

VREG V

2.3

Thermal data

Table 4. Thermal data

Symbol

Parameter

Package

Typ. Unit

RthJA Thermal resistance junction-ambient

HTSSOP28(1)

POWERSO36(2)

22

°C/W

12

1. HTSSOP28 mounted on EVAL6474H Rev 1.0 board: four-layer FR4 PCB with a dissipating copper surface

of about 40 cm2 on each layer and 15 via holes below the IC.

2. POWERSO36 mounted on EVAL6474PD Rev 1.0 board: four-layer FR4 PCB with a dissipating copper

surface of about 40 cm2 on each layer and 22 via holes below the IC.

DocID022529 Rev 4

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