L9903 datasheet(4/17 Pages) STMICROELECTRONICS

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L9903

4/17

Table 5. Electrical Characteristcs

(8V < VVS < 20V, VEN = HIGH, -40°C

≤ TJ ≤ 150°C, unless otherwise specified. The voltages are refered to

GND and currents are assumed positive, when current flows into the pin

Symbol

Parameter

Test Condition

Min.

Typ.

Max.

Unit

Supply (VS)

VVS OVH

Overvoltage disable HIGH

threshold

VVS OVh

Overvoltage threshold hysteresis 2)

1.6

VVS UVH

Undervoltage disable HIGH

threshold

VVS UVh

Undervoltage threshold

hysteresis 2)

0.66

IVSL

Supply current

VEN = 0 ; VVS = 13.5V; TJ< 85°C

µA

IVSH

Supply current, pwm-mode

VVS= 13.5V; VEN= HIGH;

VDIR= LOW; S1 = S2 = GND

fPWM = 20kHz; CCBX = 0.1µF;

CGLX = 4.7nF; CGHX = 4.7nF;

RPR = 10k

Ω; CPR = 150pF

8.1

IVSD

Supply current, dc-mode

VVS= 13.5V; VEN= HIGH;

VDIR= LOW; S1 = S2 = GND

VPWM = LOW; CGHX = 4.7nF

RPR = 10k

Ω; CPR = 150pF

5.8

Enable input (EN)

VENL

Low level

1.5

VENH

High level

3.5

VENh

Hysteresis threshold 2)

REN

Input pull down resistance

VEN = 5V

100

Ω

H-bridge control inputs (DIR, PWM)

VDIRL

VPWML

Input low level

1.5

VDIRH

VPWMH

Input high level

3.5

VDIRh

VPWMh

Input threshold hysteresis 2)

RDIR

RPWM

Internal pull up resistance

to internal VCC 3)

VDIR = 0; VPWM = 0

100

Ω

DIAGNOSTIC output (DG)

VDG

Output drop

IDG = 1mA

0.6

RDG

Internal pull up resistance

to internal VCC 3)

VDG = 0V

Ω

Programmable cross conduction protection 4)

NPR

Threshold voltage ratio VPRH/

VPRL

RPR = 10k

Ω

1.822.2

IPR

Current capability

VPR = 2V

-0.5

ISO interface, transmission input (TX)

VTXL

Input low level

1.5

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