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參數(shù)資料
| 型號： | UC17131L |
| 英文描述： | 8-bit MCU for automotive with Flash or ROM, 10-bit ADC, 5 timers, SPI, LINSCI", active CAN |
| 中文描述： | 單外設(shè)驅(qū)動 |
| 文件頁數(shù)： | 4/9頁 |
| 文件大小： | 547K |
| 代理商： | UC17131L |
I
0
0
1
0
1
I
1
0
0
1
1
CURRENT LEVEL
100%
60%
19%
Current Inhibit
Current Control:
The voltage divider, comparators and
monostable provide a means for current sensing and
control. The two bit input (I
0
, I
1
) logic selects the desired
comparator. The monostable controls the off time and
therefore the magnitude of the current decrease. The
time duration is determined by R
T
and C
T
connected to
the timing terminal (pin 2). The reference terminal (pin
11) provides a means of continuously varying the cur-
rent for situations requiring half-stepping and micro-
stepping. The relationship between the logic input
signals at pin 7 and 9 in reference to the current level is
shown in Table 1. The values of the different current lev-
els are determined by the reference voltage together
with the value of the external sense resistor R
S
(pin 16).
Single-Pulse Generator:
The pulse generator is a
monostable triggered on the positive going edge of the
comparator. Its output is high during the pulse time and
this pulse switches off the power feed to the motor wind-
ing causing the current to decay. The time is determined
by the external timing components R
T
and C
T
as:
T
OFF
= 0.69 R
T
C
T
If a new trigger signal should occur during T
OFF
, it is ig-
nored.
Figure 6
Figure 7:
Simplified Schematic of Output Stage
UC1717
UC2717
UC3717
Note: Dashed lines indicate current decay paths.
4
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相關(guān)PDF資料 |
PDF描述 |
|---|---|
| UC17132L | 8-bit MCU for automotive with Flash or ROM, 10-bit ADC, 5 timers, SPI, LINSCI", active CAN |
| UC17133L | 8-bit MCU for automotive with Flash or ROM, 10-bit ADC, 5 timers, SPI, LINSCI", active CAN |
| UC27131D | HIGH SIDE DRIVER |
| UC27131DTR | HIGH SIDE DRIVER |
| UC27131N | HIGH SIDE DRIVER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| UC17132 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:Smart Power Switch |
| UC17132J | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| UC17132L | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Single Peripheral Driver |
| UC17133 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:Smart Power Switch |
| UC17133J | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
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