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L9825

Diagnostics

Diagnostic threshold voltage

V

Open load detection sink current

20

100

µA

Diagnostic detection filter time for

output 1 & 2 on each diagnostic

condition

15

50

µs

Outputs timing

Turn ON delay of OUT 1 and 2

5µs

Turn ON delay of OUT 3 to 8

10

µs

Turn OFF delay of OUT 1 to 8

10

µs

dUon1/dt

Turn ON voltage slew-rate

For output 3 to 8; 90% to 30% of

0.7

3.5

V/µs

dUon2/dt

Turn ON voltage slew-rate

For output 1 and 2; 90% to 30%

2

10

V/µs

dUoff1/dt

Turn OFF voltage slew-rate

For output 1 to 8; 30% to 90% of

2

10

V/µs

dUoff2/dt

Turn OFF voltage slew-rate

For output 1 to 8; 30% to 80% of

2

15

V/µs

Serial diagnostic link (Load capacitor at SDO = 100pF)

Clock frequency

50% duty cycle

3

MHz

Minimum time CLK = HIGH

160

ns

Minimum time CLK = LOW

160

ns

Propagation delay

CLK to data at SDO valid

4.9V

100

ns

NCS = LOW to data at SDO

active

100

ns

CLK low before NCS low

Setup time CLK to NCS change H/L

100

ns

CLK change L/H after NCS = low

100

ns

SDI input setup time

CLK change H/L after SDI data

valid

20

ns

SDI input hold time

SDI data hold after CLK change H/L

20

ns

CLK low before NCS high

150

ns

CLK high after NCS high

150

ns

NCS L/H to output data float

100

ns

NCS pulse filter time

Multiple of 8 CLK cycles

ELECTRICAL CHARACTERISTCS (continued)

(4.5V

Symbol

Parameter

Test Condition

Min.

Typ.

Max.

Unit