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参数资料
| 型号： | LX7001ILP-TR |
| 厂商： | MICROSEMI CORP-ANALOG MIXED SIGNAL GROUP |
| 元件分类： | 电源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PBCY3 |
| 封装： | ROHS COMPLIANT, PLASTIC, TO-92, 3 PIN |
| 文件页数： | 9/9页 |
| 文件大小： | 166K |
| 代理商： | LX7001ILP-TR |
TRANSIENT IMMUNE UNDERVOLTAGE SENSING CIRCUIT
LX7001
PRODUCT DA T ABOOK 1996/1997
9
Copyright 1999
Rev. 1.2a 10/04
P RODUCTION
D AT A
S HEET
TYPICAL APPLICATION CIRCUITS
(Con't.)
FIGURE 17. — LOW VOLTAGE MICROPROCESSOR RESET
with ADDITIONAL HYSTERESIS.
Comparator hysteresis can be increased with the addition of resistor R
H.
The
hysteresis equation has been simplified and does not account for the change of
input current I
IN as VCC crosses the comparator threshold.
An increase of the
lower threshold
. V
TH (LOWER) will be observed due to IIN which is typically 340A at
4.59V. The equations are accurate to ±10% with R
H less than 150.
and R
L
between 1.5k
. and 10k. .
V
H =
+ 0.02
. V
TH (LOWER) = 340 RH x 10
-6
Where: R
H = 150.
R
L = 1.5.
= 10k.
4.6 R
H
R
L
TEST DATA
V
H
. V
TH
R
H
R
L
(mV) (mV)
(
. )(. )
20
000
51
3.4
10
1.5
40
6.8
20
4.7
81
6.8
20
1.5
71
10
30
2.7
112
10
30
1.5
100
16
47
2.7
164
16
47
1.5
190
34
100
2.7
327
34
100
1.5
276
51
150
2.7
480
51
150
1.5
1.2 V
REF
MICROPROCESSOR
CIRCUIT
RESET
V
IN
POWER
SUPPLY
R
L
R
H
I
IN
PRODUCTION DATA - Information contained in this document is proprietary to LinFinity, and is current as of publication date. This document
may not be modified in any way without the express written consent of LinFinity. Product processing does not necessarily include testing of
all parameters. Linfinity reserves the right to change the configuration and performance of the product and to discontinue product at any time.
O
B
SO
LETE
PRO
D
UCT
NOT
RECOMMENDED
FOR
NEW
DESIGNS
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