L9822E datasheet(9/17 Pages) STMICROELECTRONICS

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L9822E

Electrical specifications

9/17

VOREF

Fault refer. voltage

Output progr. OFF

Fault detected if VO > VOREF

1.6

tUD

Fault reset delay (after

CE L to H transition)

See Figure 6.

250

µs

VOFF

Output OFF voltage

Output pin floating. Output progr. OFF

Input buffer (SI, CE, SCLK and RESET pins)

VT–

Threshold voltage at

falling edge SCLK only

VCC = 5 V ± 10 %

0.2VCC

0.6

VT+

Threshold voltage at

rising edge SCLK only

VCC = 5 V ± 10 %

0.7VCC

4.15

Hysteresis voltage

VT+ – VT–

0.85

2.5

Input current

VCC = 5.50 V, 0 < VI < VCC

– 10

+ 10

µA

Input capacitance

0 < VI < VCC

Output buffer (SO pin)

VSOL

Output low voltage

IO = 1.6 mA

0.4

VSOH

Output high voltage

IO = 0.8 mA

VCC

– 1.3V

ISOtl

Output tristate leakage

current

0 < VO < VCC, CE pin held high,

VCC = 5.25 V

– 20

µA

CSO

Output capacitance

0 < VO < VCC, CE pin held high

ICC

Quiescent supply current

at VCC pin

All outputs progr. ON. IO = 0.5 A per

output simultaneously

Serial peripheral interface (see Figure 5, timing diagram)

fop

Operating frequency

D.C.

MHz

tlead

Enable lead time

250

tlag

Enable lag time

250

twSCKH

Clock high time

200

twSCKL

Clock low time

200

tsu

Data setup time

Data hold time

tEN

Enable time

250

tDIS

Disable time

250

Data valid time

100

trSO

Rise time (SO output)

VCC = 20 to 70 % CL = 200 pF

tfSO

Fall time (SO output)

VCC = 70 to 20 % CL = 200 pF

trSI

Rise time SPI inputs

(SCK, SI, CE)

VCC = 20 to 70 % CL = 200 pF

200

tfSI

Fall time SPI inputs

(SCLK, SI, CE)

VCC = 70 to 20 % CL = 200 pF

200

tho

Output data hold time

µs

Table 5.

Electrical characteristics (continued)

(VCC = 5 V ± 5 %. Tj = – 40 to 125 °C ; unless otherwise specified)

Symbol

Parameter

Test Conditions

Min.

Typ.

Max.

Unit

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