AMIS30421C4211G ONSEMI [ON Semiconductor], AMIS30421C4211G Datasheet - Page 36

• Manufacturer Part Number: AMIS30421C4211G
• Description: Micro-Stepping Stepper Motor Bridge Controller
• Manufacturer: ONSEMI [ON Semiconductor]

Predriver Register 2 (PDRV2)
bottom MOSFET’s during t
Predriver Register 3 (PDRV3)
bottom MOSFET’s during t
Table 28. PREDRIVER REGISTER 1 PARAMETERS
Table 29. PREDRIVER REGISTER 2
Table 30. PREDRIVER REGISTER 2 PARAMETERS
Table 31. PREDRIVER REGISTER 3
Table 32. PREDRIVER REGISTER 3 PARAMETERS
Predriver Register 2 is located at address 0x0B and can be used to set the current source for the gate charge of the external
Predriver Register 3 is located at address 0x0C and can be used to set the current source for the gate charge of the external
BOT_ION1[6:3]
BOT_ION1[2:0]
BOT_ION2[6:3]
BOT_ION2[2:0]
TOP_ION2[6:3]
TOP_ION2[2:0]
Address
Address
0x0B
0x0C
Parameter
Parameter
Parameter
Access
Access
Reset
Reset
Data
Data
Value
Value
Value
xxxx
xxxx
xxxx
xxx
xxx
xxx
1
2
(see Figure 11).
(see Figure 11).
Bit 7
Bit 7
R/W
R/W
Current source
Current source
Current source
0
0
Value
Value
Value
value
value
value
Bit 6
Bit 6
R/W
R/W
BOT_ION1[6:3]
BOT_ION2[6:3]
1
0
Predriver Register 2 (PDRV2)
Predriver Register 3 (PDRV3)
Defines the current source for the external top MOSFET’s during t
Current source can be calculated as next:
1 mA + (PDRV1[7:4] x 2 mA) + 0.25 mA + (PDRV1[2:0] x 0.25 mA)
Defines the current source for the external bottom MOSFET’s during
t
1 mA + (PDRV2[7:4] x 2 mA) + 0.25 mA + (PDRV2[2:0] x 0.25 mA)
Defines the current source for the external bottom MOSFET’s dur-
ing t
1 mA + (PDRV3[7:4] x 2 mA) + 0.25 mA + (PDRV3[2:0] x 0.25 mA)
1
. Current source can be calculated as next:
http://onsemi.com
2
. Current source can be calculated as next:
Bit 5
Bit 5
R/W
R/W
0
0
36
Bit 4
Bit 4
R/W
R/W
1
0
Description
Description
Description
Bit 3
Bit 3
R/W
R/W
0
−
0
−
Bit 2
Bit 2
R/W
R/W
0
0
BOT_ION1[2:0]
BOT_ION2[2:0]
Bit 1
Bit 1
R/W
R/W
1
1
2
.
Bit 0
Bit 0
R/W
R/W
Info
p13
1
1
Info
Info
p13
p13