Datasheet
Analog Integrated Circuit Device Data
Freescale Semiconductor 23
10XSC425
PWM MODULE TIMING
f
IN0
Input PWM Clock Range on IN0
7.68 – 30.72 kHz
f
IN0(LOW)
Input PWM Clock Low Frequency Detection Range on IN0
1.0 2.0 4.0 kHz
(35)
f
IN0(HIGH)
Input PWM Clock High Frequency Detection Range on IN0
100 – 400 kHz
(35)
f
PWM
Output PWM Frequency Range using External Clock on IN0
31.25 – 781 Hz
A
FPWM(CAL)
Output PWM Frequency Accuracy using Calibrated Oscillator
-10 – +10 %
f
PWM(0)
Default Output PWM Frequency using Internal Oscillator
84 120 156 Hz
t
CSB(MIN)
CSB Calibration Low Minimum Time Detection Range
14 20 26 s
t
CSB(MAX)
CSB Calibration Low Maximum Tine Detection Range
140 200 260 s
R
PWM
_1k
Output PWM Duty Cycle Range for f
PWM
= 1.0 kHz for high speed slew rate
10 – 94 %
(35)
R
PWM
_400
Output PWM Duty Cycle Range for f
PWM
= 400 Hz
6.0 – 98 %
(35)
R
PWM
_200
Output PWM Duty Cycle Range for f
PWM
= 200 Hz
5.0 – 98 %
(35)
INPUT TIMING
t
IN
Direct Input Toggle Timeout
175 250 325 ms
AUTORETRY TIMING
t
AUTO
Autoretry Period
105 150 195 ms
TEMPERATURE ON THE GND FLAG
T
OTWAR
Thermal Prewarning Detection
110 125 140 °C
(36)
T
FEED
Analog Temperature Feedback at T
A
= 25 °C with R
CSNS
= 2.5 k
1.15 1.20 1.25 V
DT
FEED
Analog Temperature Feedback Derating with R
CSNS
= 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 V
HS
= 50% of V
PWR
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 R
L
= 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 V
PWR
20 V, 3.0 V V
DD
5.5 V, - 40 C T
A
125 C, GND = 0 V, unless
otherwise noted. Typical values noted reflect the approximate parameter means at T
A
= 25 °C under nominal conditions, unless
otherwise noted.
Symbol Characteristic Min Typ Max Unit Notes