L9348 datasheet(4/13 Pages) STMICROELECTRONICS

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L9348

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Table 5. Electrical Characteristcs

The electrical characteristics are valid within the operating range (Table 4), unless otherwise specified

Symbol

Parameter

Test Condition

Min.

Typ.

Max.

Unit

Power Supply

Supply current

VIN1...IN4, ENA = H

Quiescent current (outputs OFF)

VENA = L

ID3/4

Quiescent current at pins D3/4

VD3/4 ≤ 18V;

VIN3/4 = L

400

µA

Diagnostic Functions

VQU1 to 4 Output open load voltage

threshold

VS ≥ 6.5V

VEN = X; VIN = L

0.3

0.33

0.36

x VS

IQU1 to 4

Output open load current

threshold

VS ≥ 6.5V

VEN = H; VIN = H

140

IQO1/2

Overload current threshold Q 1, 2

VS ≥ 6.5V

57.5

IQO3/4

Overload current threshold Q 3, 4

VS ≥ 6.5V

358

Tth

Overtemperature shutdown

threshold

175

210

°C

Thy

Overtemperature hysteresis

°C

VthPGL

Power-GND-loss threshold

1.5

2.5

3.5

VthSGL

Signal-GND-loss threshold

150

330

510

Power Outputs (Q1 to Q4)

RDSON1/2 Static drain-source ON-resistance

Q1, Q2

IQ = 1A; VS ≥ 9.5V

Tj = 25°C

0.2

Ω

Tj = 125°C

0.5

Ω

Tj = 150°C

0.5

Ω

RDSON3,4 Static drain-source ON-resistance

Q3, Q4

IQ = 1A; VS ≥ 9.5V

Tj = 25°C

0.35

Ω

Tj = 125°C

0.75

Ω

Tj = 150°C

0.75

Ω

Z-diode clamping voltage

= threshold of flyback detection

Q3/4

IQ ≥ 100mA,

pos. supply VD3/4

Clamping voltage

IQ ≥ 100mA,

neg. supply VD3/4

410

IPD

Output pull down current

VENA = H, VIN = L

µA

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