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參數(shù)資料
| 型號： | L8202 |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | MULTIFUNCTION ANALOG ASIC |
| 中文描述： | 多功能模擬集成電路 |
| 文件頁數(shù)： | 6/15頁 |
| 文件大?。?/td> | 237K |
| 代理商： | L8202 |
L8202
6/15
Table 6. SPI Bit Definition
BIT #
Symbol
RESET
VALUE
DESCRIPTION
0
STAND_BY
1
A Logic “1” inhibits OpAmps and Motors, and puts the L8202 into a lower power
state.
Chip must power up with Stand By Mode active.
VDD regulators operate independently from Stand By Mode.
1
VDD_EN
0
A logic "1" enables the VDD regulator. Chip must power up with the VDD
regulators inactive.
2
MDC1_D
0
Controls the direction of current flow through the DC motor windings. A high level
causes current to flow from DC1A(source) to DC1B(sink).
3
MDC2_D
0
Controls the direction of current flow through the DC motor windings. A high level
causes current to flow from DC2A(source) to DC2B(sink).
4
VSW_EN
1
A high level causes the 5V switch turn on. Chip must power up with the 5V switch
closed.
5
ODD 1
0
Controls Open Drain Driver. A high level causes Open Drain Driver Turn On.
6
ODD 2
0
Controls Open Drain Driver. A high level causes Open Drain Driver Turn On.
7
ODD 3
0
Controls Open Drain Driver. A high level causes Open Drain Driver Turn On.
8
ODD 4
0
Controls Open Drain Driver. A high level causes Open Drain Driver Turn On.
9
ODD 5
0
Controls Open Drain Driver. A high level causes Open Drain Driver Turn On.
10
ODD 6
0
Controls Open Drain Driver. A high level causes Open Drain Driver Turn On.
11
SEL_MTR
0
Selection of motor type. A high level selects DC motor. A logic 0 level selects
Step motor.
12
I1_PH_B
1
This input and I0_PH_B select the output of three comparators to set the current
level. Current also depends on the sensing resistor and reference voltage.
13
I0_PH_B
1
See I1_PH_B
14
D_PH_B
0
This TTL-compatible logic input sets the direction of current flow through the
load. A high level causs current to flow from OUT A (source) to OUT B(sink). A
Schmitt triger on this input provides good noise immunity and a delay circuit
prevents output stage short circuits during switching.
15
I1_PH_A
1
This input and I0_PH_A select the output of three comparators to set the current
level. Current also depends on the sensing resistor and reference voltage.
16
I0_PH_A
1
See I1_PH_A
17
D_PH_A
0
See D_PH_B
18
Test
0
A high level forces the device to enter in Test Mode.
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