參數(shù)資料
型號(hào): TLE4254EJS
廠商: INFINEON TECHNOLOGIES AG
元件分類: 電源管理
英文描述: 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8
封裝: GREEN, PLASTIC, MS-012BA, SOP-8
文件頁(yè)數(shù): 6/21頁(yè)
文件大?。?/td> 451K
代理商: TLE4254EJS
TLE4254
Electrical Characteristics
Data Sheet
14
Rev. 1.2, 2009-11-18
5.4
Status Output (version GS / EJ S only)
The status output ST indicates an overvoltage or undervoltage situation at the regulator’s output Q. Therefore, the
output voltage
V
Q is compared to the reference voltage VADJ/EN. Variations of the output voltage are indicated by
a low signal at the status output ST. Transients shorter than the status reaction time
t
ST,r will not trigger the status
output.
The status output ST is an open collector output, requiring a pull-up resisitor to a positive voltage rail.
Table 4
Electrical Characteristics Status Output ST (Version GS / EJ S only)
V
I = 13.5 V; VADJ/EN ≥ 2.0 V; -40 °C ≤ Tj ≤ 150 °C; CQ = 1 F
all voltages with respect to ground (unless otherwise specified).
Pos.
Parameter
Symbol
Limit Values
Unit
Test Condition
Min.
Typ.
Max.
5.4.21 Status switching threshold,
undervoltage
V
Q,UV
V
ADJ/EN
- 120
V
ADJ/EN
- 70
V
ADJ/EN
- 50
mV
V
Q decreasing
5.4.22 Status switching threshold,
overvoltage
V
Q,OV
V
ADJ/EN
+ 50
V
ADJ/EN
+ 70
V
ADJ/EN
+ 120
mV
V
Q increasing
5.4.23 Status reaction time
t
ST,r
10
15
30
s
5.4.24 Status output
low voltage
V
ST,low
––0.4
V
I
ST = 1 mA;
V
I ≥ 4 V
5.4.25 Status output
sink current limitation
I
ST,max
1––
mA
I
ST = 1 mA;
V
ST = 0.8 V
5.4.26 Status output
leakage current
I
ST,leak
–02
A
V
Q = V
ADJ/EN
V
ST = 5 V
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