E-L6258EX View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

E-L6258EX

PWM controlled high current DMOS universal motor driver

STMicroelectronics 

L6258EX

Block diagram

Table 4.

Electrical characteristics (continued)

(VS = 40V; VDD = 5V; Tj = 25°; unless otherwise specified.)

Parameter

Description

Test condition

Min. Typ. Max. Unit

ΔTSD-H

TSD

fosc

Shut down hysteresis

Thermal shutdown

Triangular oscillator

frequency(1)

CFREF = 1nF

25

°C

150

°C

12.5 15 18.5 KHz

TRANSISTORS

IDSS Leakage current

Rds(on) On resistance

Vf

Flywheel diode voltage

CONTROL LOGIC

OFF State

ON state

If =1.0A

500 μA

0.6 0.75 W

1

1.4

V

Vin(H)

Vin(L)

Iin

Idis

lnput voltage

Input voltage

Input current (2)

Disable pin input

current

All Inputs

All inputs

0 < Vin < 5V

2

0

-150

-10

VDD

V

0.8

V

+10 μA

+150 μA

Vref1/ref2

Iref

Reference voltage

Vref terminal input

current

Operating

0

Vref = 1.25

-2

2.5

V

5

μA

FI =

Vref/Vsense

VFS

PWM loop transfer

ratio

DAC full scale

precision

2

Vref = 2.5V I0/I1/I2/I3 = L 1.23

1.34

V

Voffset

Current loop offset

DAC factor ratio

Vref = 2.5V I0/I1/I2/I3 = H -40

Normalized @ full scale

value

-2

+40 mV

+2

%

SENSE AMPLIFIER

Vcm

lnput common mode

voltage range

Iinp

Input bias

ERROR AMPLIFIER

GV

Open loop voltage gain

SR Output slew rate

GBW

Gain bandwidth

product

sense1/sense2

Open loop

-0.7

-200

VS+0.7 V

0

μA

70

dB

0.2

V/μs

400

kHz

1. Chopping frequency is twice fosc value.

2. This is true for all the logic inputs except the disable input.

9/32

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