- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄381156 > UC27131D HIGH SIDE DRIVER PDF資料下載
參數(shù)資料
| 型號(hào)： | UC27131D |
| 英文描述： | HIGH SIDE DRIVER |
| 中文描述： | 單外設(shè)驅(qū)動(dòng) |
| 文件頁數(shù)： | 4/9頁 |
| 文件大?。?/td> | 547K |
| 代理商： | UC27131D |
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
Powered by ICminer.com Electronic-Library Service CopyRight 2003
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| UC27131DTR | HIGH SIDE DRIVER |
| UC27131N | HIGH SIDE DRIVER |
| UC27132D | HIGH SIDE DRIVER |
| UC27132DTR | HIGH SIDE DRIVER |
| UC27132N | HIGH SIDE DRIVER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| UC27131DG4 | 功能描述:電源開關(guān) IC - 配電 Low Side Smart Power Switch RoHS:否 制造商:Exar 輸出端數(shù)量:1 開啟電阻（最大值）:85 mOhms 開啟時(shí)間（最大值）:400 us 關(guān)閉時(shí)間（最大值）:20 us 工作電源電壓:3.2 V to 6.5 V 電源電流（最大值）: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOT-23-5 |
| UC27131DTR | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Single Peripheral Driver |
| UC27131N | 功能描述:電源開關(guān) IC - 配電 Low Side Smart Power Switch RoHS:否 制造商:Exar 輸出端數(shù)量:1 開啟電阻（最大值）:85 mOhms 開啟時(shí)間（最大值）:400 us 關(guān)閉時(shí)間（最大值）:20 us 工作電源電壓:3.2 V to 6.5 V 電源電流（最大值）: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOT-23-5 |
| UC27131NG4 | 功能描述:電源開關(guān) IC - 配電 Low Side Smart Power Switch RoHS:否 制造商:Exar 輸出端數(shù)量:1 開啟電阻（最大值）:85 mOhms 開啟時(shí)間（最大值）:400 us 關(guān)閉時(shí)間（最大值）:20 us 工作電源電壓:3.2 V to 6.5 V 電源電流（最大值）: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOT-23-5 |
| UC27132 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:Smart Power Switch |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。