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TS1520CX5RF датащи(PDF) 2 Page - Taiwan Semiconductor Company, Ltd

номер детали TS1520CX5RF
подробное описание детали  Step-Up DC-DC Converter, White LED Driver
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производитель  TSC [Taiwan Semiconductor Company, Ltd]
домашняя страница  http://www.taiwansemi.com
Logo TSC - Taiwan Semiconductor Company, Ltd

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TS1520
Step-Up DC-DC Converter, White LED Driver
2/12
Version: B07
Absolute Maximum Rating
Parameter
Symbol
Limit
Unit
Input Voltage
VIN
10
V
Supply Voltage (Recommended)
VIN
2.7 ~ 7
V
FB Voltage
VFB
5
V
SW Voltage
VSW
32
V
CTRL Voltage
VCTRL
5
V
Ambient Temperature Range
TA
-40 to +85
oC
Junction Temperature Range
TJ
-40 to +125
oC
Electrical Specifications (Ta = 25oC, VIN=3.3V, CIN=1uF, COUT=10uF unless otherwise noted)
Function Parameter
Symbol
Test Conditions
Min
Typ
Max
Units
Input Voltage Range
VIN
2.7
--
7
V
Quiescent Current (Not Switching)
VFB = 0.3V
1.2
1.5
1.7
mA
Quiescent Current (Shutdown)
IQ
CTRL = 0V
--
0.3
1
uA
Feedback Voltage
VFB
Iout=20mA,Vout=12.5V
Circuit of Figure 1
180
200
220
mV
ICL
100% duty cycle
420
450
--
Switch Current Limit
ILIM
40% duty cycle
--
250
--
mA
FB Pin Bias Current
IB
VFB=200mV
2
10
20
uA
Switching Frequency
FRSW
680
700
720
KHz
Maximum Duty Cycle
DTMX
--
--
85
%
Minimum Duty Cycle
DTMN
20
--
25
%
Switch Vcesat
VSAT
At Isw = 200mA
--
120
--
mV
Switch Leakage Current
ILKG
Ctrl = 0.3V
--
1
--
µA
Full On
--
1.7
1.8
V
VCTRL for Full LED Current
VCTL
Full Off
--
0.2
0.3
V
CTRL Pin Bias Current
ICTL
Ctrl = 2V
--
20
--
µA
Over Voltage Protection
OVP
--
30
--
V
Thermal Resistance
θJA
--
220
--
°C/W
Note:
Absolute maximum ratings are limits beyond which damage to the device may occur.
The maximum allowable power dissipation is a function of maximum function temperature , TJ(max), the junction to
ambient thermal resistance, θJA , and the ambient temperature. The maximum allowable, power dissipation at any
ambient temperature is calculated using: PD(MAX)= [TJ(max)-TA]/θJA . Exceeding the maximum allowable power
dissipation will cause excessive die temperature. All limits at temperature extremes are guaranteed via correlation
using standard statistical methods


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