MM908E626AVEK Freescale Semiconductor, MM908E626AVEK Datasheet - Page 27

• Manufacturer Part Number: MM908E626AVEK
• Description: IC STEPPER MOTOR DRIVER 54-SOIC
• Manufacturer: Freescale Semiconductor
• Type: Stepper Motor Driverr

Specifications of MM908E626AVEK

• Applications: Automotive Mirror Control
• Core Processor: HC08
• Program Memory Type: FLASH (16 kB)
• Controller Series: 908E
• Ram Size: 512 x 8
• Interface: SCI, SPI
• Number Of I /o: 13
• Voltage - Supply: 8 V ~ 18 V
• Operating Temperature: -40°C ~ 115°C
• Mounting Type: Surface Mount
• Package / Case: 54-SOIC (7.5mm Width) Exposed Pad, 54-eSOIC, 54-HSOIC
• Product: Stepper Motor Controllers / Drivers
• Supply Current: 20 mA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Offset Chopping
set, HB1 and HB2 will continue to switch on the low side
MOSFETs with the rising edge of the FGEN signal and HB3
Analog Integrated Circuit Device Data
Freescale Semiconductor
Low-Side Output
If bit OFC_EN in the H-bridge Control Register (HBCTL) is
Coil Current
(MCU PWM
FGEN Input
Half-Bridge
Signal)
Minimum 50 µs
Figure 13. Half-bridge Current Limitation
and HB4 will switch on the low side MOSFETs with the falling
edge on the FGEN input. In step motor applications, this
feature allows the reduction of EMI due to a reduction of the
di/dt
(Figure
14).
FUNCTIONAL DEVICE OPERATION
H-Bridge low-side
MOSFET will be switched
off if select current limit is
reached.
H-Bridge low-side
MOSFET will be turned on
with each rising edge of
the FGEN input.
OPERATIONAL MODES
t (µs)
t (µs)
t (µs)
908E626
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