mm908e622 Freescale Semiconductor, Inc, mm908e622 Datasheet - Page 33

• Manufacturer Part Number: mm908e622
• Description: Mm908e622 Integrated Quad Half-bridge, Triple High-side And Ec Glass Driver With Embedded Mcu And Lin For High End Mirror
• Manufacturer: Freescale Semiconductor, Inc

analog multiplexer is integrated in the analog die. This
multiplexer has twelve different sources, which can be
selected with the SS[3:0] bits in the A0MUCTL register.
Half-bridge (HB1:HB4) Current Recopy
circuits on the low side FET of the half bridges. This sense
circuits offers a voltage proportional to the current through the
MOSFET. The resolution is depending on bit CSA in the A0
and Multiplexer control register (A0MUCTL).
High-side (HS1:HS3) Current Recopy
switches. This sense circuits offers a voltage proportional to
the current through the transistor.
Analog Input A0 and A0CST
multiplexer. It offers the possibility to read analog values from
the periphery.
Temperature Sensor
This sensor offers a voltage which is proportional to the
actual mean chip junction temperature.
VSUP prescaler
external supply voltage. The output of this voltage is VSUP /
RATIO
EC Output
be able to read the actual voltage on the EC terminal.
A0 and Multiplexer Control Register (A0MUCTL)
CSON — Current Source on/off
A0CST inputs
Reset clears CSON bit.
Analog Integrated Circuit Device Data
Freescale Semiconductor
Reset
Read
Write
The multiplexer is connected to the four current sense
The multiplexer is connected to the three high-side
A0 and A0CST are directly connected to the analog
The analog die includes an on chip temperature sensor.
The VSUP prescaler offers a possibility to measure the
The EC output is directly connected to the multiplexer to
This read/write bit enables the current source for the A0 or
1 = Current Source enabled
0 = Current Source disabled
VSUP
CSON
Bit7
0
.
Register Name and Address: A0MUCTL - $08
CSSEL
6
0
1
CSSEL
5
0
0
CSA
4
0
SS3
3
0
SS2
2
0
SS1
1
0
SS0
Bit0
0
CSSEL[1:0] — Current Source Select Bits
A0 or A0CST input.
Reset clears CSSEL[1:0] bits.
CSA — H-Bridges Current Sense Amplification Select Bit
of the H-Bridges HB1:HB4 current recopy.
Reset clears the CSA bit.
SS[3:0] — Analog Source Input Select Bits
the ADOUT terminal.
Reset clears the SS[3:0] bits
CSSEL1
SS3
These read/write bits select the current source values for
This read/write bit selects the current sense amplification
These read/write bits selects the analog input source for
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
Table 7. A0 Current Source Level Selection Bits
0
0
1
1
Table 8. Analog Multiplexer Configuration Bits.
1 = low current sense amplification
0 = high current sense amplification
SS2
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
CSSEL0
0
1
0
1
SS1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
SS0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Current Source Enable (typ.)
Functional Device Operation
current recopy HB1
current recopy HB2
current recopy HB3
current recopy HB4
current recopy HS1
current recopy HS2
current recopy HS3
Chip temperature
Terminal A0CST
VSUP prescaler
120µA
320µA
800µA
40µA
Terminal EC
Terminal A0
Channel
not used
not used
not used
not used
Operational Modes
908E622
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