33800 datasheet(12/39 Pages) FREESCALE

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Analog Integrated Circuit Device Data

Freescale Semiconductor

33800

ELECTRICAL CHARACTERISTICS

DYNAMIC ELECTRICAL CHARACTERISTICS

Table 4. Dynamic Electrical Characteristics

Characteristics noted under conditions 3.0V

≤ V

DD ≤ 5.5V, 9.0V ≤ VPWR ≤ 18V, - 40°C ≤ TA ≤ 125°C, GND = 0V, unless

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

otherwise noted.

Characteristic

Symbol

Min

Typ

Max

Unit

CONSTANT CURRENT SOLENOID DRIVER OUTPUT (CCD1_OUT)

On State Open Load Detect Timer(10)

Fault is detected with driver on, timer expired

tONOPENTIMER

6.0

Off State Open Load Detect Timer(10)

Fault detected with driver off & voltage threshold not achieved

(Driver off timer)

tOFFOPENTIMER

µs

On State Shorted Load Detect Timer(10)

Fault is detected with driver switching and drain voltage remains greater

than threshold for specified time.

tONSHORTTIMER

µs

Short Retry Time(10)

tRETRY

Output Slew Rate

VBAT = 14V, Measured from 4.0V to 10.0V

VBAT = 14V, Measured from 10.0V to 4.0V

tSR(RISE)

tSR(FALL)

2.0

-2.0

3.0

-3.0

4.0

-4.0

µs

Driver On Time Blanking Period(10)

tBP(OFF)

7.0

µs

Driver Off Time Blanking Period(10)

tBP(ON)

7.0

µs

CONSTANT CURRENT SOLENOID DRIVER OUTPUT (CCD2_OUT)

On State Open Load Detect Timer(10)

Fault is detected with driver on, timer expires (Driver on timer)

tONOPENTIMER

6.0

Off State Open Load Detect Timer(10)

Fault is detected with driver off and voltage threshold is not achieved.

(Driver off timer)

tOFFOPENTIMER

µs

On State Shorted Load Detect Timer(10)

Fault is detected with driver switching and drain voltage remains greater

than threshold for specified time.

tONSHORTTIMER

µs

Short Retry Time(10)

tRETRY

Output Slew Rate

VBAT = 14V, Measured from 4.0V to 10.0V

VBAT = 14V, Measured from 10.0V to 4.0V

tSR(RISE)

tSR(FALL)

1.5

-1.5

–

4.0

-4.0

µs

CCD2 DAC Update Rate(10)

Response time from present current level to new programmed level

tRESPONSE

1.0

Driver On Time Blanking Period(10)

tBP(ON)

3.0

4.3

µs

Driver Off Time Blanking Period(10)

tBP(OFF)

17.2

µs

OCTAL SERIAL DRIVERS (OUT1 - OUT8)

Output On Current Limit Fault Filter Timer(10)

tCL

µs

Output Refresh Timer(10)

tREF

5.0

Output On Short Circuit Fault Filter Timer(10)

tSC

400

500

650

µs

Notes

10.

Assumes oscillator has been calibrated using SPI Calibrate Command.

33800 Datasheet(PDF) 12 Page - Freescale Semiconductor, Inc

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