參數資料
型號: L99H01QF
廠商: STMICROELECTRONICS
元件分類: 運動控制電子
英文描述: BRUSH DC MOTOR CONTROLLER, PQFP32
封裝: 7 X 7 MM, ROHS COMPLIANT, LQFP-32
文件頁數: 32/53頁
文件大?。?/td> 1129K
代理商: L99H01QF
L99H01
Doc ID 15567 Rev 3
4.5
Detailed byte description of status register (StatReg0)
The read operation starts always with the command byte followed by 1 data byte. The
content of the send data byte has to be ‘0’. The content of the addressed register is shifted
out at DO within the same frame (‘in-frame response’).
The device uses 1 status register to monitor the state of the device. Table 31 shows the
address and the content of the register.
Comments:
DS_MON[3:0]: If max drain source voltage exceeds the defined thresholds, the
DS_MON are set and the corresponding drivers go to sink mode. The DS_MON bits
have to be cleared through a software reset to reactivate the drivers.
OT_EXT: Depending on EXT_TS bit following two meanings exist:
EXT_TS = low (active off):
TS/ACT_OFF pin is used as input to switch the H-bridge in tristate and back.
Details are discribed in Chapter 3.12.1.
EXT_TS = high (thermal sensor interface):
TS/ACT_OFF pin is used as thermal sensor interface for external temperature
diodes. Details are discribed in Chapter 3.12.2.
CP_LOW: If a charge pump output voltage low occurs, all gate drivers must be
switched-off (resistive low). The CP_LOW bit has to be cleared through a software
reset to reactivate the gate driver.
Table 31.
Address 0<00(hex)>:StatReg 0 - read only
Bit
7
6
5
4
3
2
1
0
Name
DS_MON_3
DS_MON_2
DS_MON_1
DS_MON_0
X
OT_EXT
CP_LOW
<default>
0
Table 32.
DS_MON - drivers relations
Register
Deactivated driver
DS_MON_3
High-side 2
DS_MON_2
High-side 1
DS_MON_1
Low-side 2
DS_MON_0
Low-side 1
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