TS1518 Taiwan Semiconductor Company, TS1518 Datasheet - Page 2

• Manufacturer Part Number: TS1518
• Description: White LED Driver
• Manufacturer: Taiwan Semiconductor Company

Absolute Maximum Rating
Electrical Specifications
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
Parameter
Input Voltage
Supply Voltage (Recommended)
FB Voltage
SW Voltage
CTRL Voltage
Ambient Temperature Range
Junction Temperature Range
Input Voltage Range
Quiescent Current (Not Switching)
Quiescent Current (Shutdown)
Feedback Voltage
Switch Current Limit
FB Pin Bias Current
Switching Frequency
Maximum Duty Cycle
Minimum Duty Cycle
Switch Vcesat
Switch Leakage Current
V
CTRL Pin Bias Current
Over Voltage Protection
Thermal Resistance
CTRL
Function Parameter
for Full LED Current
(Ta = 25
o
C, V
Symbol
F
D
V
D
OVP
V
I
V
V
θ
I
I
LIM
I
I
I
CL
LKG
CTL
Q
RSW
JA
IN
FB
B
TMN
IN
TMX
SAT
CTL
Step-Up DC-DC Converter, White LED Driver
=3.3V, C
VFB = 0.3V
CTRL = 0V
Iout=20mA,Vout=12.5V
Circuit of Figure 1
100% duty cycle
40% duty cycle
VFB=200mV
At Isw = 200mA
Ctrl = 0.3V
Full On
Full Off
Ctrl = 2V
IN
=1uF, C
2/7
Test Conditions
Symbol
V
V
V
V
V
CTRL
T
T
SW
FB
OUT
IN
IN
A
J
=10uF unless otherwise noted)
-40 to +125
-40 to +85
200
2.7
1.2
Min
90
900
1.7
2.7 ~ 7
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20
Limit
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32
9
5
5
100
230
180
1.5
0.3
Typ
220
930
120
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40
34
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1
TS1518
Version: B07
Max
110
1.7
960
180
0.3
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7
1
1
85
25
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Unit
o
o
V
V
V
V
V
C
C
°C/W
Units
mA
mV
mA
uA
uA
KHz
mV
V
µA
µA
%
%
V
V
V