MMA5206WR2 Freescale Semiconductor, MMA5206WR2 Datasheet - Page 38

• Manufacturer Part Number: MMA5206WR2
• Description: IC ACCELER 60G X-AXIS 16QFN
• Manufacturer: Freescale Semiconductor

Specifications of MMA5206WR2

• Sensing Axis: X
• Acceleration: 60 g
• Sensitivity: 0.125 g/LSB
• Package / Case: QFN-16
• Supply Voltage (max): 25 V
• Supply Current: 4 mA to 8 mA
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

38
4.4
mains within the specified limits.
MMA52xxWR
Following power-up, the device proceeds through an initialization process which is divided into 3 phases:
Once initialization is completed the device begins normal mode operation, which continues as long as the supply voltage re-
During PSI5 initialization, the device completes an internal initialization process consisting of the following:
Figure 32
V
IDLE
I
IDLE
Initialization
+ ΔV
+ I
• Initialization Phase 1: No Data transmissions occur
• Initialization Phase 2: Sensor self-test and transmission of configuration information
• Initialization Phase 3: Transmission of “Sensor Busy”, and “Sensor Ready” / “Sensor Defect” message
• Power-on Reset
• Device Initialization
• Program Mode Entry Verification
• Offset Cancellation Initialization (2 Stages)
• Self-Test
shows the timing for internal and external initialization.
V
GND
SYNC
I
MOD
IDLE
IDLE
Sync Pulses Ignored or
Program Mode Entry
POR
INIT 1
Figure 31. PSI5 Sensor 10-Bit Initialization
INIT 2
...
INIT 3
Normal Mode
Sync Pulses
NORMAL MODE
Freescale Semiconductor
Sensors