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SP6134CU-L/TR Datasheet(PDF) 3 Page - Exar Corporation

Part # SP6134CU-L/TR
Description  600kHz Synchronous PWM Step Down Controller
PDF  15 Pages
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Manufacturer  EXAR [Exar Corporation]
Direct Link  http://www.exar.com
Logo EXAR - Exar Corporation

SP6134CU-L/TR Datasheet(HTML) 3 Page - Exar Corporation

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S
SP
P6
61
13
34
4
6
60
00
0k
kH
Hz
z S
Sy
yn
nc
ch
hrro
on
no
ou
us
s P
PW
WM
M S
Stte
ep
p D
Do
ow
wn
n C
Co
on
nttrro
olllle
err
© 2008 Exar Corporation
3/15
Rev. 2.0.0
Parameter
Min.
Typ.
Max.
Units
Conditions
SS Discharge Current:
1
mA
•
Fault Present, SS = 0.2V
Short Circuit Threshold Voltage
0.20
0.25
0.30
V
•
Measured VREF (0.8V) - VFB
Hiccup Timeout
100
ms
VFB = 0.5V
Number of Allowable Clock
Cycles at 100% Duty Cycle
20
Cycles
VFB = 0.7V
Minimum GL Pulse After 20
Cycles
0.5
Cycle
VFB = 0.7V
Thermal Shutdown Temperature
145
°C
Thermal Hysteresis
10
°C
GH & GL Rise Times
35
50
ns
•
Measured 10% to 90%
GH & GL Fall Times
30
40
ns
•
Measured 90% to 10%
GL to GH Non Overlap Time
45
70
ns
•
GH & GL Measured at 2.0V
SWN to GL Non Overlap Time
25
40
ns
•
Measured SWN = 100mV to GL = 2.0V
GH & GL Pull Down Resistance
50
Ω
Driver Pull Down Resistance
1.5
Ω
Driver Pull Up Resistance
2.5
Ω
BLOCK DIAGRAM
Fig. 2:SP6134 Block Diagram



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