L9935

Electrical specifications

Doc ID 5198 Rev 10

9/29

3.3

Electrical characteristics

8 V

 V

S  24 V; -40 °C  Tj  150 °C; 4.5 V  VCC  5.5 V, unless otherwise specified.

Parameters are tested at 125 °C. Values at 140 °C are guaranteed by design and

correlation.

Table 5.

Electrical characteristics

Symbol

Parameter

Test condition

Min.

Typ.

Max.

Unit

Supply

IS85

Total supply current IS+ IVCC

(both bridges Off)

VS = 14 V; EN = HIGH;

TJ  85 °C

-

40

100

A

ISOP

Operating supply current

IOUT Ai/Bi = 0; fOSC = 30 kHz

VS = 14 V

-4.5

-

mA

ICC

5 V supply current

EN = LOW

-

1.4

10

mA

Full bridges

ROUT, Sink

RDSON of sink transistors

Current bit

-

0.4

0.7



ROUT, Source RDSON of source transistors

combinations LL, LH, VS 12 V

-

0.4

0.7



ROUT8, Sink

RDSON of sink transistors +

RDSON of source transistors

Current bit combinations LL,

LH, VS = 8V

-1.6

3



VFWD

Forward voltage of the DMOS

body diodes

EN = HIGH; IFWD = 1 A;

VS 12 V

-

1

1.4

V

VREV

Reverse DMOS voltage

EN = LOW IREV = 1 A

-

0.5

0.9

V

tr, tf

Rise and fall time of outputs

OUTAi/Bi

0.1...0.9 VOUTVS= 14 V

Chopping 550 mA

0.3

0.6

1.5

s

Switch Off threshold of the chopper (R1  R2 = 0.33 )

VSRHL

Voltage drops across R1  R2

(1)

(Voltage at Pin SRA or SRB vs.

GND)

Bit 5, 2 = H; Bit 4, 1 = L

12

20

35

mV

VSRLH

Bit 5, 2 = L; Bit 4, 1 = H

160

180

210

mV

VSRLL

Bit 5, 4, 2, 1 = L

270

300

340

mV

Enable input EN

VEN High

High input voltage

-

VCC -

1.2V

--

V

VENlow

Low input voltage

-

-

-

1.2

V

VEN Hyst

Enable hysteresis

-

0.1

-

-

V

IEN High

High input current

VHigh = VCC

-10

0

10

A

IEN Low

Low input current

VLOW = 0V

-3

-10

-30

A

Logic inputs SDI. SCK, CSN

VHIGH

High input voltage

EN = LOW

2.6

8

V

VLOW

Low input voltage

-0.3

1

V

VHyst

Hysteresis

0.8

1.2

1.6

V