L9935(1999) Ver la hoja de datos (PDF) - STMicroelectronics

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componentes Descripción

Fabricante

L9935
(Rev.:1999)

TWO-PHASE STEPPER MOTOR DRIVER

STMicroelectronics 

L9935

ABSOLUTE MAXIMUM RATINGS

Symbol

VS

VSPulsed

VOUT (Ai/Bi)

Parameter

DC Supply Voltage

Pulsed supply voltage T < 400ms

Output Voltages

IOUT (Ai/Bi)

VSRA/SRB

VCC

VCDRV

VSCK, VSDI,

VCSN, VEN

VOSC, VSDO

DC Output Currents

Peak Output Currents (T/tp ≥ 10)

Sense Resistor Voltages

Logic Supply Voltages

Charge Pump Buffer Voltage versus VS

Logic Input Voltages

Oscillator Voltage Range, Logic Output

Value

Unit

-0.3 to 35

V

-0.3 to 40

V

internally clamped to VS

or GND depending on the

current direction

±1.2

A

±2.5

A

-0.3 to 6.2

V

-0.3 to 6.2

V

-0.3 to 10

V

-2 to 8

V

-0.3 to VCC +0.3

V

Note: ESD for all pins, except pins SDO, SRA and SRB, are according to MIL883C, tested at 2kV, corre sponding to a maximum energy

dissipation of 0.2mJ. SDO, SRA and SRB pins are tested with 800V.

THERMAL DATA

Symbol

Rth j-case

Rth j-amb

Rth j-amb, FR4

TS

TSD

Parameter

Typical Thermal Resistance Junction to Case

Typical Thermal Resistance Junction to Ambient

(6cm2 Ground Plane 35µm Thhickness)

Typical Thermal Resistance Junction to Ambient

(soldered on a FR 4 board with through holes for heat transfer

and external heat sink applied)

Storage Temperature

Typical Thermal Shut-Down Temperature

Value

5

35

8

-40 to 150

180

Unit

°C/W

°C/W

°C/W

°C

°C

ELECTRICAL CHARACTERISTICS

erwise specified.)1)

(8V

≤

VS

≤

24V;

-40°C

≤

Tj

≤

150°C;

4.5V

≤

VCC

≤

5.5V,

unless

oth-

Symbol

SUPPLY

IS85

ISOP

Parameter

Total Supply Current

IS + IVCC (Both Bridges Off)

Operating Supply Current

ICC

5V Supply Current

FULL BRIDGES

ROUT, Sink RDSON of Sink Transistors

ROUT, Source RDSON of Source Transistors

ROUT8, Sink RDSON of Sink Transistors +

RDSON of Source Transistors

VFWD

VREV

Forward Voltage of the DMOS

Body Diodes

Reverse DMOS Voltage

tr, tf

Rise and Fall Time of Outputs

OUTAi/Bi

Test Condition

VS = 14V

EN = HIGH

TJ ≤ 85°C

IOUT Ai/Bi = 0

fOSC = 30kHz

VS = 14V

EN = LOW

Current bit

combinations LL, LH,

VS ≥ 12V

Current bit

Combinations LL, LH,

VS = 8V

EN = HIGH

IFWD = 1A; VS ≥ 12V

EN = LOW

IREV = 1A

0.1...0.9 VOUT VS = 14V

Chopping 550mA

Min. Typ. Max. Unit

40

100

µA

4.5

mA

1.4

10

mA

0.4

0.7

Ω

0.4

0.7

Ω

1.6

3

Ω

1

1.4

V

0.5

0.9

V

0.3

0.6

1.5

µs

3/19

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