MC34911BAC datasheet(11/45 Pages) FREESCALE

Teilenummer	MC34911BAC

Bauteilbeschribung	LIN System Basis Chip with DC Motor Pre-driver

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Hersteller	FREESCALE [Freescale Semiconductor, Inc]

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Analog Integrated Circuit Device Data

Freescale Semiconductor

11

33911

ELECTRICAL CHARACTERISTICS

STATIC ELECTRICAL CHARACTERISTICS

L1 AND L2 INPUT PINS (L1, L2)

Low Detection Threshold

5.5V < VSUP < 27V

VTHL

2.0

2.5

3.0

V

High Detection Threshold

5.5V < VSUP < 27V

VTHH

3.0

3.5

4.0

V

Hysteresis

5.5V < VSUP < 27V

VHYS

0.5

1.0

1.5

V

Input Current(37)

-0.2V < VIN < VS1

IIN

-10

–

10

µA

Analog Input Impedance(38)

RLxIN

800

1550

–

k

Ω

Analog Input Divider Ratio (RATIOLx = VLx / VADOUT0)

LXDS (Lx Divider Select) = 0

LXDS (Lx Divider Select) = 1

RATIOLx

0.95

3.42

1.0

3.6

1.05

3.78

Analog Output offset Ratio

LXDS (Lx Divider Select) = 0

LXDS (Lx Divider Select) = 1

VRATIOLx-

OFFSET

-80

-22

0.0

80

22

mV

Analog Inputs Matching

LXDS (Lx Divider Select) = 0

LXDS (Lx Divider Select) = 1

LxMATCHING

96

100

104

%

WINDOW WATCHDOG CONFIGURATION PIN (WDCONF)

External Resistor Range

REXT

20

–

200

k

Ω

Watchdog Period Accuracy with External Resistor (Excluding Resistor

Accuracy)(39)

WDACC

-15

–

15

%

ANALOG MULTIPLEXER

Internal Chip Temperature Sense Gain

STTOV

–

10.5

–

mV/K

VSENSE Input Divider Ratio (RATIOVSENSE = VVSENSE / VADOUT0)

5.5V < VSUP < 27V

RATIOVSENSE

5.0

5.25

5.5

VSENSE Output Related Offset

-40°C < TA < -20°C

OFFSETVSENSE

-30

-45

–

30

45

mV

ANALOG OUTPUT (ADOUT0)

Maximum Output Voltage

-5mA < IO < 5mA

VOUT_MAX

VDD -0.35

–

VDD

V

Minimum Output Voltage

-5mA < IO < 5mA

VOUT_MIN

0.0

–

0.35

V

Notes

37.

Analog Multiplexer input disconnected from Lx input pin.

38.

Analog Multiplexer input connected to Lx input pin.

39.

Watchdog timing period calculation formula: tPWD [ms] = 0.466 * (REXT - 20) + 10 (REXT in kΩ)

Table 3. Static Electrical Characteristics (continued)

Characteristics noted under conditions 5.5V

≤ V

SUP ≤ 18V, -40°C ≤ TA ≤ 125°C for the 33911 and -40°C ≤ TA ≤ 85°C for the

34911, 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

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