L9969X datasheet(27/70 Pages) STMICROELECTRONICS

27 / 70 page

Symbol

Parameter

Condition

Min

Typ

Max

Unit

OUTx 80% → OUTx 20%

VS = 14 V; Rload = 14 Ω

DCmatching = 1

tf_LS01_dcm1

Fall Time LS

OUTx 80% → OUTx 20%

VS = 14 V; Rload = 14 Ω

DCmatching = 1

SR = 01

-35.0

-15.0 V/µs

tf_LS10_dcm1

Fall Time LS

OUTx 80% → OUTx 20%

VS = 14 V; Rload = 14 Ω

DCmatching = 1

SR = 10

-35.0

-15.0 V/µs

tf_LS11_dcm1

Fall Time LS

OUTx 80% → OUTx 20%

VS = 14 V; Rload = 14 Ω

DCmatching = 1

SR = 11

-35.0

-15.0 V/µs

fPWM

Output switching frequency

kHz

tddis

Disable delay time DIS

NABE 50% → OUTx 20%

Resistive load

12.5

µs

tdpwon

Power On delay time from power down

VS = VUF_ON → output stages active

tden

Enable delay time from disable status DIS

NABE 50% → OUTx 80%

Resistive load

µs

tr_DIS_NABE

Rise Time LS

OUTx 20% → OUTx 80%

VS = 14 V; Rload = 14 Ω

60.0

V/µs

tf_DIS_NABE

Fall Time HS

OUTx 80% → OUTx 20%

VS = 14 V; Rload = 14 Ω

-60.0 V/µs

The Output ON delay and the Output OFF delay are designed symmetrically, having, as a result, a deviation of

max. 2% of the PWM value between Input Signal (PWM) and Output signal (OUTx) by 20 kHz.

In case of output control via SPI interface, the parameters are measured from the positive transition of the SPI

NSS signal.

L9969x

Functional description

DS14029 - Rev 6

page 27/70

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