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SC453 Arkusz danych(PDF) 6 Page - Semtech Corporation

Numer części SC453
Szczegółowy opis  Portable, VID Programmed Single Phase Power Supply Controller
PDF  23 Pages
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Producent  SEMTECH [Semtech Corporation]
Strona internetowa  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

SC453 Arkusz danych(HTML) 6 Page - Semtech Corporation

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© 2006 Semtech Corp.
www.semtech.com
POWER MANAGEMENT
SC453
Parameter
Symbol
Conditions
Min
Typ
Max
Units
CORE Comparator (CMP, REFIN, HYS) (Cont.)
Hysteresis Setting
Current SLP = low
I
CMP
R
HYS = 17K
V
CMP < VREFIN
-110
-100
-90
μA
V
CMP > VREFIN
90
100
110
R
HYS = 170K
V
CMP < VREFIN
-7
-10
-13
V
CMP > VREFIN
710
13
Hysteresis Setting
Current SLP = high
I
SLP_ ICMP
R
HYS = 17K
V
CMP < VREFIN
-83
-73
-63
μA
V
CMP > VREFIN
63
73
83
Current Limit Comparator (CL, CLRF, HYS)
Input Bias Current
I
CL
V
CL1, 2 = 1.3V
|±2|
μA
Input Voltage Offset
V
CL- VCLRF
|±3|
|±5|
mV
Current Limit Setting
Current SLP = low
I
CLRF
R
HYS = 17K
V
CL < VCLRF
150
200
250
μA
V
CL > VCLRF
250
300
350
R
HYS = 170K
V
CL < VCLRF
15
20
25
V
CL > VCLRF
25
30
35
Current Limit Setting
Current SLP = high
I
SLP_CLRF
R
HYS = 17K
V
CL < VCLRF
120
150
180
μA
V
CL > VCLRF
195
230
265
Zero-Crossing (Powersave) Comparators (CL, CORE)
Offset
V
CL- VCORE
|±5|
mV
High Side Driver (TG)
Peak Output Current(1)
I
pkh
1.5
A
Output Resistance
R
SRC_TG
I = 100mA,
V
BST-VDRN = 5V
V
DRN < 1V
4.2
Ω
V
DRN > 1V
1
4
R
SINK_TG
I = 100mA, V
BST-VDRN = 5V
0.7
1.4
Ω
Rise Time(1)
tr
TG
C
TG = 3nF, VBST-VDRN = 5V
60
ns
Fall Time(1)
tf
TG
C
TG = 3nF, VBST-VDRN = 5V
36
ns
Electrical Characteristics (Cont.)



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