33291L データシートの表示（PDF） - Freescale Semiconductor

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33291L

Eight-Output Switch with Serial Peripheral Interface I/O

Freescale Semiconductor 

ELECTRICAL CHARACTERISTICS

ELECTRICAL PERFORMANCE CURVES

VDD = 5.0 V

VPWR = 14 V

33291L

CS

Under

Test

RL = 26 Ω

Output

CL

CL represents the total capacitance of the test fixture and probe.

Figure 8. Switching Time Test Circuit

VDD = 5.0 V

VPWR = 11 V

33291L

CS

Under

Test

ΙL = 2.0 Α

(Ουτπυτ ΟΝ)

Output

CL = 20 pF

CL represents the total capacitance of the test fixture and probe.

Figure 9. Output Fault Unlatch Disable

Delay Test Circuit

tR(SI)

< 50 ns

tF(SI)

< 50 ns

90%

50%

CS

10%

tDLY(OFF)

Output Voltage

Waveform 1

10%

5.0 V

0

14 V

VOL

Output Voltage

90%

14 V

Waveform 2

VOL

tDLY(ON)

1. tDLY(ON) and TDLY(OFF) are turn-ON and turn-OFF propagation delay

times.

2. Turn-OFF is an output programmed from an ON to an OFF state.

3. Turn-ON is an output programmed from and OFF to an ON state.

Figure 10. Turn-On/-Off Waveforms

tR(SI)

tF(SI)

< 50 ns

< 50 ns

CS

50% 90%

10%

5.0 V

0

Output Voltage

Waveform

Output Current

Waveform

50%

tPDLY(OFF)

50%

VOFF = 11 V

VON = 5.0 V

IO(CL)

0

1. tPDLY(OFF) is the output fault unlatch disable propagation delay time re-

quired to correctly report an output fault after CS rises. It represents an

output commanded ON while having an existing output short (overcurrent)

to supply.

2. The SFPD pin < 0.2 V.

Figure 11. Output Fault Unlatch Disable

Delay Waveforms

33291L

10

Analog Integrated Circuit Device Data

Freescale Semiconductor

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