Electrical specifications

L4989D, L4989MD

8/19

DS8714 Rev 3

2.3

Electrical characteristics

VS = 5.6 V to 31 V, Tj = -40°C to +150°C unless otherwise specified.

Table 5. General

Pin

Symbol

Parameter

Test condition

Min.

Typ.

Max.

Unit

Vo

Vo_ref

Output voltage

VS = 5.6 to 31 V;

Io = 1 to 150 mA

4.85

5.0

5.15

V

Vo

Ishort_13

Short circuit current

VS = 13.5 V(1)

160

210

250

mA

Vo

Ilim

Output current limitation

VS = 13.5 V

(1)

170

250

290

mA

VS, Vo

Vline

Line regulation voltage

VS = 5.6 to 31 V;

Io = 1 to 150 mA

25

mV

Vo

Vload

Load regulation voltage

Io = 1 to 150 mA

25

mV

VS, Vo

Vdp

Drop voltage

Io = 150 mA

180

400

mV

VS, Vo

SVR

Ripple rejection

fr = 100 Hz

55

dB

VS, Vo

Iqs_1

Current consumption with

watchdog not active

Iqs_1 = IVS-Io

VS = 13.5 V;

Io < 1 mA; WEn = low

69

115

µA

VS, Vo

Iqs_10

Current consumption with

watchdog not active

Iqs_10 = IVS-Io

VS = 13.5 V;

Io = 10 mA;

WEn = low

127

300

µA

VS, Vo

Iqs_50

Current consumption with

watchdog not active

Iqs_50 = IVS-Io

VS = 13.5 V;

Io = 50 mA;

WEn = low

498

900

µA

VS, Vo

Iqs_150

Current consumption with

watchdog not active

Iqs_150 = IVS-Io

VS = 13.5 V;

Io = 150 mA;

WEn = low

1.40

2

mA

VS, Vo

Iqn_1

Current consumption with

watchdog active

Iqn_1 = IVS-Io

VS = 13.5 V;

Io < 1 mA; WEn = high

110

170

µA

VS, Vo

Iqn_10

Current consumption with

watchdog active

Iqn_10 = IVS-Io

VS = 13.5 V;

Io = 10 mA;

WEn = high

168

350

µA

VS, Vo

Iqn_50

Current consumption with

watchdog active

Iqn_50 = IVS-Io

VS = 13.5 V;

Io = 50 mA;

WEn = high

538

1000

µA

VS, Vo

Iqn_150

Current consumption with

watchdog active

Iqn_150 = IVS-Io

VS = 13.5 V;

Io = 150 mA;

WEn = high

1.45

2

mA

Tw

Thermal protection temperature

150

190

°C

Tw_hy

Thermal protection temperature

hysteresis

10

°C

1. See Figure 3.