10XSC425 datasheet(23/56 Pages) FREESCALE

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Analog Integrated Circuit Device Data



Freescale Semiconductor

10XSC425

PWM MODULE TIMING

fIN0

Input PWM Clock Range on IN0

7.68

–

30.72

kHz

fIN0(LOW)

Input PWM Clock Low Frequency Detection Range on IN0

1.0

2.0

4.0

kHz

(35)

fIN0(HIGH)

Input PWM Clock High Frequency Detection Range on IN0

100

–

400

kHz

(35)

fPWM

Output PWM Frequency Range using External Clock on IN0

31.25

–

781

AFPWM(CAL) Output PWM Frequency Accuracy using Calibrated Oscillator

-10

–

+10

fPWM(0)

Default Output PWM Frequency using Internal Oscillator

120

156

tCSB(MIN)

CSB Calibration Low Minimum Time Detection Range

s

tCSB(MAX)

CSB Calibration Low Maximum Tine Detection Range

140

200

260

s

RPWM_1k

Output PWM Duty Cycle Range for fPWM = 1.0 kHz for high speed slew rate

–

(35)

RPWM_400 Output PWM Duty Cycle Range for fPWM = 400 Hz

6.0

–

(35)

RPWM_200 Output PWM Duty Cycle Range for fPWM = 200 Hz

5.0

–

(35)

INPUT TIMING

tIN

Direct Input Toggle Timeout

175

250

325

AUTORETRY TIMING

tAUTO

Autoretry Period

105

150

195

TEMPERATURE ON THE GND FLAG

TOTWAR

Thermal Prewarning Detection

110

125

140

°C

(36)

TFEED

Analog Temperature Feedback at TA = 25 °C with RCSNS = 2.5 k

1.15

1.20

1.25

DTFEED

Analog Temperature Feedback Derating with RCSNS = 2.5 k

-3.5

-3.7

-3.9

mV/°C

(37)

Notes

34.

Clock Fail detector available for PWM_en bit is set to logic [1] and CLOCK_sel is set to logic [0].

35.

The PWM ratio is measured at VHS = 50% of VPWR and for the default SR value. It is possible to put the device fully on (PWM duty cycle

100%) and fully off (duty cycle 0%). For values outside this range, a calibration is needed between the PWM duty cycle programming and

the PWM on the output with RL = 5.0  resistive load.

36.

Typical value guaranteed per design.

37.

Value guaranteed per statistical analysis.

Table 5. Dynamic Electrical Characteristics (continued)

Characteristics noted under conditions 6.0 V

VPWR  20 V, 3.0 V  VDD  5.5 V, -40 C  TA  125 C, GND = 0 V, unless

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

otherwise noted.

Symbol

Characteristic

Min

Typ

Max

Unit

Notes

10XSC425 Datasheet(PDF) 23 Page - Freescale Semiconductor, Inc

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