MC9S12E128CPV Freescale Semiconductor, MC9S12E128CPV Datasheet - Page 367

• Manufacturer Part Number: MC9S12E128CPV
• Description: Microcontrollers (MCU) 16 Bit 16MHz
• Manufacturer: Freescale Semiconductor

Specifications of MC9S12E128CPV

• Data Bus Width: 16 bit
• Program Memory Type: Flash
• Program Memory Size: 128 KB
• Data Ram Size: 8 KB
• Interface Type: SCI, SPI
• Maximum Clock Frequency: 25 MHz
• Number Of Programmable I/os: 92
• Number Of Timers: 16 bit
• Operating Supply Voltage: 3.135 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: LQFP-112
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit
• On-chip Dac: 8 bit, 2 Channel
• Lead Free Status / Rohs Status: No RoHS Version Available

If both D flip-flops latch low, DT0 = 0, DT1 = 0, during deadtime periods if current is large and flowing
out of the complementary circuit. See
during deadtime periods if current is also large and flowing into the complementary circuit. However,
under low-current, the output voltage of the complementary circuit during deadtime is somewhere between
the high and low levels. The current cannot free-wheel throughout the opposition anti-body diode,
regardless of polarity, giving additional distortion when the current crosses zero. Sampled results will be
DT0 = 0 and DT1 = 1. Thus, the best time to change one PWM value register to another is just before the
current zero crossing.
Freescale Semiconductor
HIGH NEGATIVE CURRENT
HIGH POSITIVE CURRENT
LOW POSITIVE CURRENT
PWM0
PWM1
LOAD VOLTAGE WITH
LOAD VOLTAGE WITH
LOAD VOLTAGE WITH
LOAD VOLTAGE WITH
NEGATIVE CURRENT
PWM TO BOTTOM
Figure 11-55. Current-Status Sense Scheme for Deadtime Correction
TRANSISTOR
TRANSISTOR
PWM TO TOP
DEADTIME
T = DEADTIME INTERVAL BEFORE ASSERTION OF TOP PWM
B = DEADTIME INTERVAL BEFORE ASSERTION OF BOTTOM PWM
Figure 11-56. Output Voltage Waveforms
NEGATIVE
CURRENT
POSITIVE
CURRENT
MC9S12E128 Data Sheet, Rev. 1.07
Figure
T
VOLTAGE
SENSOR
11-55. If both D flip-flops latch the high, DT0 = 1, DT1 = 1,
B
Chapter 11 Pulse Width Modulator with Fault Protection (PMF15B6CV2)
IS0 PIN
T
PWM0
PWM1
B
D
D
CLK
CLK
Q
Q
V+
DT0
DT1
POSITIVE
CURRENT
NEGATIVE
CURRENT
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