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7447714470 Scheda tecnica(PDF) 4 Page - Union Semiconductor, Inc.

Il numero della parte 7447714470
Spiegazioni elettronici  Hysteretic Buck High Brightness LED Driver with Internal Switch
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Produttore elettronici  UNIONSEMI [Union Semiconductor, Inc.]
Homepage  http://www.union-ic.com
Logo UNIONSEMI - Union Semiconductor, Inc.

7447714470 Scheda tecnica(HTML) 4 Page - Union Semiconductor, Inc.

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________________________________________________________________________
http://www.union-ic.com Rev.05 Apr.2016
4/13
UM1360
Electrical Characteristics
(VIN=16V, TA=25°C, unless otherwise noted)
Symbol
Parameter
Test Conditions
Min
Typ
Max
Unit
VIN
Input Voltage Range
6
40
V
ILED
Output Current
RS=0.33Ω
303
mA
RS=0.1Ω
1000
IQ
Quiescent Current
without Switching
VSET Pin Floating,
VIN=16V
430
μA
ISD
Shutdown Current
VSET=GND, VIN=16V
35
70
μA
VSENSE
Mean Current Sense
Threshold Voltage
Measured on ISENSE Pin
with Respect to VIN
95
100
105
mV
VSENSE_HYS
Sense Threshold
Hysteresis
±15
%
ISENSE
ISENSE Pin Input
Current
VSENSE=VIN-0.1
20
μA
VEN
VSET Range on VSET
Pin
For DC Dimming
0.3
2.5
V
VENON
DC Voltage on VSET
Pin to Enable
VEN Rising
0.25
V
VENOFF
DC Voltage on VSET
Pin to Disable
VEN Falling
0.2
V
RLX
LX Switch on
Resistance
ILX=1000mA
0.5
Ω
ILX(leak)
LX Switch Leakage
Current
5
μA
FLX
Operating Frequency
VIN=16V, L1=47μH,
VOUT=9.6V (3 LEDs),
RS=0.1Ω
230
kHz
FLXmax
Recommended
Maximum Switch
Frequency
1.0
MHz
Ton_rec
(Note 2)
Recommended
Minimum
Switch ON Time
For 4% Accuracy
500
ns
Max Duty Cycle
100
%
DLX
Recommended Duty
Cycle Range
25
75
%
TPD
(Note 2)
Internal Comparator
Propagation Delay
500
ns
TOTP
Over Temperature
Protection
150
°C
TOTP_HYS
Temperature Protection
Hysteresis
40
°C
ILXmax
Peak Switch Current
1.5
A
ILXmean
Continuous Switch
Current
1.0
A
Note 2: Parameters are not tested at production, but guaranteed by design.


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