L9969X datasheet(10/70 Pages) STMICROELECTRONICS

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2.3

Absolute maximum ratings

2.3.1

Supply voltage

There is no special sequence to switch on the different voltages (VS, VDD and voltages on any input pins).

Even if there is only VS applied, signals on the internal inputs or outputs, even up to 18 V, must not result in any

kind of faulty reaction of the H-bridge or in a destruction of the H-bridge.

Table 6. Absolute Maximum Ratings

Symbol

Parameter

Condition

Min Typ

Max

Unit

VVS

VS Static destruction proof

VDD = 0 V

VDD = 5 V

-1.0

VVS

VS Dynamic destruction proof; see load dump pulse

VDD = 0 V

VDD = 5 V

-1.0

IVS,INV Dynamic destruction proof t < 0.25 s

VDD = 0 V

VDD = 5 V

5.0

VVDD

VDD Static destruction proof

VS = 0 V

VS = 18 V

-0.5

Vcp

Charge Pump Destruction proof

VDD = 0 V

VDD = 5 V

VVS + CP

voltage

VOutx

Vout static destruction proof

VS = 28 V

VDD = 0 V

VDD = 5 V

Ix = 3 A

-1.0

+Vf

VOutx

Vout dynamic destruction proof, see load dump pulse)

load condition: 0.8 mH to 1 mH, PWM fmax = 20 kHz)

VS = 40 V

VDD = 0 V

VDD = 5 V

Ix = 10 A

+Vf

IOutx

Iout dynamic destruction proof t < 0.5 s (load

condition: 0.8 mH to 1 mH, PWM fmax = 20 kHz)

VOUTx ≤ VS + Vf

VDD = 0 V

VDD = 5 V

Static destruction proof for internal pins

VS = 0 V

VS = 18 V

VDD = 0 V

VDD = 5 V

VDD = 18 V

-0.5

VVS_slew

Maximum slew rate on VS (no destruction and no

change of parameters)

VDD = 5 V

IOUT = 3 A

VS = 6 V, 10 V, 14 V, 18 V

V/µs

Note:

Vf is the voltage drop (by the defined current) over the body diode of the H-bridge driver.

L9969x

Electrical specifications

DS14029 - Rev 6

page 10/70

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