L5956

Electrical specifications

Doc ID 13852 Rev 4

9/17

VHOLD R

Low VIN1 threshold

VIN1 Low TH.

9

9.5

10

V

VHYS (HOLD_L) Hysteresis low TH.

-

50

150

200

mV

VHOLD F

High VIN1 threshold

VIN1 High TH.

182022

V

VHYS (HOLD_M) Hysteresis high TH.

-

200

500

mV

IGNITION BUFFER (push-pull with Schmidt trigger)

IGNIN

IGNout falling

-

1.031.171.28

V

IGNIN

IGNout rising

-

1.181.271.33

V

Vhys(IGNout)

Hysteresis of ignition buffer

-

-

50

-

mV

IHsource(IGNout) High level source current

IGNout = 0 V

1000

1500

2000

µA

ILsink(IGNout)

Low level sink current

IGNout = 5 V

101520

mA

Vol

Low level

ILsink (IGNout) = 1 mA

-

0.3

0.5

V

Voh

High level

-

4.5

Vreg2

5.5

V

IGNRISE

Rising time

C = 15 pF

-

-

10

µs

IGNFALL

Fall time

C = 15 pF

-

-

10

µs

ICLAMP

Input clamp current

VCC < VIGN < 50 V

-

-

2

mA

IGNIN

Input voltage

Operative

0

-

50

V

ENABLE INPUT (regulators 1,3,4 and power switch)

VTH

Voltage threshold

-

1.3

1.8

2.3

V

ENIN

Input voltage

Operative

0

-

5

V

1.

“Non operating” should be intended as a condition outside the absolute maximum ratings defined for the IC. As such, if the

device is operated under such conditions, it is not guaranteed that the electrical parameters are inside the specification

range.

2.

Drop condition means that the supply voltage drop down to 100 mV from the regulated output and the regulator is sourcing

its maximal load current.

Table 4.

Electrical characteristics (continued)

Symbol

Parameter

Test condition

Min.

Typ.

Max.

Unit