TS19370 データシートの表示（PDF） - TSC Corporation
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TS19370 Datasheet PDF : 8 Pages
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TS19370
Boost (Step-up) WLED Driver with OVP
Absolute Maximum Rating
Parameter
Input Voltage
Supply Voltage (Recommended)
FB Voltage
SW Voltage
CTRL Voltage
Ambient Temperature Range
Junction Temperature Range
Symbol
VIN
VIN
VFB
VSW
VCTRL
TA
TJ
Limit
20
2.5 ~ 18
10
36
10
-40 to +85
-40 to +125
Unit
V
V
V
V
V
oC
oC
Electrical Specifications (Ta = 25oC, VIN= VCTRL=3V, CIN=1uF, COUT=0.22uF unless otherwise noted)
Function Parameter
Symbol Test Conditions Min Typ Max Units
Input Voltage Range
Feedback Voltage
VIN
VFB
ISW=100mA, 66%
duty cycle
2.5
--
18
V
86
95
104
mV
FB Pin Bias Current
IB
10
45
100
nA
Supply Current
IQ
CTRL = 0V
--
1.9
2.5
mA
--
0.1
1.0
uA
Switching Frequency
FRSW
0.8
1.2
1.6
MHz
Switch Current Limit
ICL
--
320
--
mA
Maximum Duty Cycle
DTMX
85
90
--
%
Switch VCESAT
VSAT
At ISW= 250mA
--
350
--
mV
Switch Leakage Current
ILKG
VSW = 5V
--
0.01
5
µA
VCTRL
VCTL
High
Low
1.5
--
--
V
--
--
0.4
V
CTRL Pin Bias Current
ICTL
Ctrl = 2V
--
65
--
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
2/8
Version: D08
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