33390 datasheet(7/15 Pages) FREESCALE

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Analog Integrated Circuit Device Data

Freescale Semiconductor

33390

ELECTRICAL CHARACTERISTICS

DYNAMIC ELECTRICAL CHARACTERISTICS

Table 4. Dynamic Electrical Characteristics

Characteristics noted under conditions of 7.0 V

≤ V

BAT ≤ 16 V, -40°C ≤ TA ≤ 125°C, SLEEP = 5.0 V unless otherwise noted.

Typical values reflect the parameter's approximate midpoint average value with VBAT = 13 V, TA = 25°C. All positive currents are

into the pin. All negative currents are out of the pin.

Characteristic

Symbol

Min

Typ

Max

Unit

BUS

BUS Voltage Rise Time (9) (9.0 V

≤ V

BAT ≤ 16 V, Tx = 7.812 kHz Square Wave)

(see Figure 5)

BUS Load = 3,300 pF and 1.38 k

Ω to GND

BUS Load = 16,500 pF and 300

Ω to GND

tRISE(BUS)

9.0

11.15

11.86

µs

BUS Voltage Fall Time (9) (9.0 V

≤ V

BAT ≤ 16 V, Tx = 7.812 kHz Square Wave)

(see Figure 5)

BUS Load = 3,300 pF and 1.38 k

Ω to GND

BUS Load = 16,500 pF and 300

Ω to GND

tFALL(BUS)

9.0

10.50

11.17

µs

Pulse Width Distortion Time (9.0 V

≤ V

BAT ≤ 16 V, Tx = 7.812 kHz Square

Wave) (see Figure 6)

BUS Load = 3,300 pF and 1.38 k

Ω to GND

tPWD(BUS)

µs

Propagation Delay

Tx Threshold to Rx Threshold

tPD(BUS)

–

17.7

µs

Tx to BUS Delay Time (Tx = 2.5 V to VBUS = 3.875 V) (see Figure 7)

4X Mode

Normal Mode

tTXDELAY

–

2.6

17.3

4.0

µs

SLEEP

to Tx Setup Time (see Figure 7)

tSLEEPTXSU

–

µs

Rx Output Delay Time (Tx = 2.5 V to VBUS = 3.875 V) (see Figure 8)

Low-to-Output High

High-to-Output Low

TRXDELAY/L–H

TRXDELAY/H–L

–

0.11

0.38

2.0

µs

Rx Output Transition Time (CRx = 50 pF to GND, 10% and 90% Points)

(see Figure 9)

Low-to-Output High

High-to-Output Low

tRXTRANS/L–H

tRXTRANS/H–L

–

0.34

0.08

1.0

µs

Rx Output Transition Time (10) (CRx = 50 pF to GND, SLEEP = 0 V, 10% and

90% Points) (see Figure 9)

Low-to-Output High

High-to-Output Low

tRXTRANS/L–H

tRXTRANS/H–L

–

0.32

0.08

5.0

µs

Notes

Typical is the parameter's approximate average value with VBAT = 13 V, TA = 25°C.

10.

Rx Output Transition Time from a sleep state.

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