33910 datasheet(61/90 Pages) FREESCALE

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Analog Integrated Circuit Device Data

Freescale Semiconductor

33910

ELECTRICAL CHARACTERISTICS

DYNAMIC ELECTRICAL CHARACTERISTICS

MC33910BAC / MC34910BAC

LIN PHYSICAL LAYER: DRIVER CHARACTERISTICS FOR FAST SLEW RATE

LIN Fast Slew Rate (Programming mode)

SRFAST

—20—

μs

LIN PHYSICAL LAYER: CHARACTERISTICS AND WAKE-UP TIMINGS(112)

Propagation Delay and Symmetry(113)

Propagation Delay Receiver, tREC_PD=max (tREC_PDR, tREC_PDF)

Symmetry of Receiver Propagation Delay tREC_PDF - tREC_PDR

tREC_PD

tREC_SYM

—

-2.0

3.0

—

6.0

2.0

μs

Bus Wake-up Deglitcher (Sleep and Stop modes)(114)

tPROPWL

μs

Bus Wake-up Event Reported

From Sleep mode(115)

From Stop mode(116)

tWAKE

—

9.0

—

1500

μs

TXD Permanent Dominant State Delay

tTXDDOM

0.65

1.0

1.35

PULSE WIDTH MODULATION INPUT PIN (PWMIN)

PWMIN pin(117)

Max. frequency to drive HS output pins

fPWMIN

—

kHz

Notes

112.

VSUP from 7.0 V to 18 V, bus load RBUS and CBUS 1.0 nF / 1.0 kΩ, 6.8 nF / 660 Ω, 10 nF / 500 Ω. Measurement thresholds: 50% of TXD

signal to LIN signal threshold defined at each parameter. See Figure 6.

113.

See Figure 9.

114.

See Figure 10, for Sleep and Figure 11, for Stop mode.

115.

The measurement is done with 1.0 µF capacitor and 0 mA current load on VDD. The value takes into account the delay to charge the

capacitor. The delay is measured between the bus wake-up threshold (VBUSWU) rising edge of the LIN bus and when VDD reaches 3.0 V.

See Figure 10. The delay depends of the load and capacitor on VDD.

116.

In Stop mode, the delay is measured between the bus wake-up threshold (VBUSWU) and the falling edge of the IRQ pin. See Figure 11.

117.

This parameter is guaranteed by process monitoring but, not production tested.

Table 34. Dynamic Electrical Characteristics (continued)

Characteristics noted under conditions 5.5 V

≤ VSUP ≤ 18 V, -40°C ≤ TA ≤ 125°C for the 33910 and -40°C ≤ TA ≤ 85°C for the

34910, unless otherwise noted. Typical values noted reflect the approximate parameter mean at TA = 25°C under nominal

conditions, unless otherwise noted.

Characteristic

Symbol

Min

Typ

Max

Unit

33910 Datasheet(PDF) 61 Page - Freescale Semiconductor, Inc

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