MC34912BAC datasheet(10/47 Pages) FREESCALE

No de pièce	MC34912BAC

Description	LIN System Basis Chip with DC Motor Pre-driver and Current

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Fabricant	FREESCALE [Freescale Semiconductor, Inc]

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Analog Integrated Circuit Device Data

10

Freescale Semiconductor

33912

ELECTRICAL CHARACTERISTICS

STATIC ELECTRICAL CHARACTERISTICS

HIGH SIDE OUTPUTS HS1 AND HS2 PINS (HS1, HS2)

Output Drain-to-Source On Resistance

TJ = 25°C, ILOAD = 50mA; VSUP > 9.0V

TJ = 150°C, ILOAD = 50mA; VSUP > 9.0V

(26)

TJ = 150°C, ILOAD = 30mA; 5.5V < VSUP < 9.0V

(26)

RDS(ON)

–

7.0

10

14

Ω

Output Current Limitation(27)

0V < VOUT < VSUP - 2.0V

ILIMHSX

60

120

250

mA

Open Load Current Detection(28)

IOLHSX

–

5.0

7.5

mA

Leakage Current

-0.2V < VHSX < VS2 + 0.2V

ILEAK

–

10

µA

Short-circuit Detection Threshold(29)

5.5V < VSUP < 27V

VTHSC

VSUP -2.0

–

V

Over-temperature Shutdown(30), (35)

THSSD

150

165

180

°C

Over-temperature Shutdown Hysteresis(35)

THSSD_HYS

–

10

–

°C

LOW SIDE OUTPUTS LS1 AND LS2 PINS (LS1, LS2)

Output Drain-to-Source On Resistance

TJ = 25°C, ILOAD = 150mA, VSUP > 9.0V

TJ = 125°C, ILOAD = 150mA, VSUP > 9.0V

TJ = 125°C, ILOAD = 120mA, 5.5V < VSUP < 9.0V

RDS(ON)

–

2.5

4.5

10

Ω

Output Current Limitation(31)

2.0V < VOUT < VSUP

ILIMLSX

160

275

350

mA

Open Load Current Detection(32)

IOLLSX

–

8.0

12

mA

Leakage Current

-0.2V < VOUT < VS1

ILEAK

–

10

µA

Active Output Energy Clamp

IOUT = 150mA

VCLAMP

VSUP +2.0

–

VSUP +5.0

V

Short-circuit Detection Threshold(33)

5.5V < VSUP < 27V

VTHSC

2.0

–

V

Over-temperature Shutdown(34), (35)

TLSSD

150

165

180

°C

Over-temperature Shutdown Hysteresis(35)

TLSSD_HYS

–

10

–

°C

Notes

26.

This parameter is production tested up to TA = 125°C and guaranteed by process monitoring up to TJ = 150°C..

27.

When over-current occurs, the corresponding high side stays ON with limited current capability and the HSxCL flag is set in the HSSR

.

28.

When open load occurs, the flag (HSxOP) is set in the HSSR

.

29.

When short-circuit occurs and if HVSE flag is enabled, both HS automatic shutdown.

30.

When over-temperature shutdown occurs, both high sides are turned off. All flags in HSSR are set.

31.

When over-current occurs, the corresponding low side stays ON with limited current capability and the LSxCL flag is set in the LSSR

.

32.

When open load occurs, the flag (LSxOP) is set in the LSSR.

33.

When short-circuit occurs and if HVSE Flag is enabled, both LS automatic shutdown

34.

When over-temperature shutdown occurs, both low sides are turned off. All flags in LSSR are set.

35.

Guaranteed by characterization but not production tested

Table 3. Static Electrical Characteristics (continued)

Characteristics noted under conditions 5.5V

≤ V

SUP ≤ 18V, -40°C ≤ TA ≤ 125°C for the 33912 and -40°C ≤ TA ≤ 85°C for the

34912, 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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