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TB62732FU Fiches technique(PDF) 4 Page - Toshiba Semiconductor

No de pièce TB62732FU
Description  The step up type DC-DC converter only for white LED driver lighting
Download  15 Pages
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Fabricant  TOSHIBA [Toshiba Semiconductor]
Site Internet  http://www.semicon.toshiba.co.jp/eng
Logo TOSHIBA - Toshiba Semiconductor

TB62732FU Fiches technique(HTML) 4 Page - Toshiba Semiconductor

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TOSHIBA
T B 6 2 7 3 2 F U
27, Feb 2002 (Ver.04)
Characteristics
Symbol
Test condition
min
typ
max
Unit
Supply voltage
Vcc
3.0
-
5.5
V
Operation supply
current
Icc(On)
Vcc = 3.6V
-
0.9
mA
Stand-by supply
current
Icc(SHDN)
SHDN = 0 V
-
0.5
1.2
uA
SHDN terminal
current
I_SHDN
SHDN = Vcc,
built in pull-down resisance
-
4.2
7
uA
MOS-Tr on
resistance
Ron
Io(A) <= 380 mA,
detection resistance value is
contained.
-
2.0
2.5
ohms
MOS-Tr switching
frequency
fOSC
0.7
1.0
1.3
MHz
A terminal voltage
Vo(A)
17
-
-
V
A terminal current
Io(A)
320
350
380
mA
A terminal
leakage current
Ioz(A)
-
0.5
1
uA
Set up LED
current (mean)
Io
Vcc = 3 - 4.3V,
R_sens = 2.7 ohms,
19.6
mA
LED current Vcc
dependence
dIo
L = 6.8uH,
Topr = 25 degree (Note 4)
+/-5
+/-10
%
Derating start
ambient
temperature
Tdel
R_sens = 2.7 ohms, L = 10uH,
Vo = 16V (Note 5)
-
45
-
degr
ee
ELECTRIC CHARACTERISTICS
( unless otherwised notice, Topr = -40 to 85 degree & Vcc = 3.0 to 5.5 V)
Note 4 : The derating function carries out the measurement in Ta= 25 degree not to work. The
specifications don't contain the dispersion of the R_Sens resistor. Io has the possibility to be different
from the specifications by the inductance value and the relations of the load.
Note 5 : It is a specifications guarantee by the design.
4


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