LT3596IUHG データシートの表示（PDF） - Linear Technology
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LT3596IUHG Datasheet PDF : 22 Pages
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LT3596
Electrical Characteristics The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VIN = 24V, BOOST = 30V, BIAS = 5V, EN/UVLO = 5V, PWM1-3 = 3.3V,
CTRL1-3 = CTRLM = TSET = 2V, VOUT = 24V, SYNC = 0V unless otherwise specified. (Note 2)
PARAMETER
VIN Operating Voltage
Quiescent Current from VIN
Minimum BIAS Voltage
Quiescent Current from BIAS
EN Threshold
UVLO Threshold (Falling)
EN/UVLO Pin Current (Hysteresis)
FB Regulation Voltage
FB Pin Bias Current
Maximum Duty Cycle
Switch Saturation Voltage
Switch Current Limit
DA Pin Current to Stop OSC
Switch Leakage
BOOST Pin Current
Switching Frequency
SYNC Input Low
SYNC Input High
SYNC Frequency Range
SYNC Pin Bias Current
Soft-Start Time
VREF Voltage
Maximum VREF Current
ISET1-3 Pin Voltage
TSET Voltage for LED Current Derating
TSET Pin Leakage Current
ILED1-3 LED Current
LED String Current Matching
LED Pin Voltage
LED1-3 Open Detection Threshold
LED1-3 Short Protection Threshold (from GND)
LED1-3 Short Protection Threshold (from VOUT)
LED1-3 Pin Leakage Current
CONDITIONS
EN/UVLO = 0.4V
BIAS = 5V, Not Switching
BIAS = 0V, Not Switching
EN/UVLO = 0.4V
BIAS = 5V, Not Switching
BIAS = 0V, Not Switching, Current Out of Pin
EN/UVLO = 1.6V
EN/UVLO = 1.4V
FB = 6V
RT = 220k (200kHz)
RT = 33.2k (1MHz)
ISW = 300mA
VSW = 0V
ISW = 100mA
RT = 220k
RT = 33.2k
RT = 220k
RT = 47k
VSYNC = 3.3V
(Note 4)
IVREF = 0µA
RISET1-3 = 20k
VTSET = 1V
RISET1-3 = 20k
RISET1-3 = 20k
Adaptive VOUT Loop Enabled
VOUT = 6V, VOUT > VLED1-3
VLED1-3 = 42V, PWM1-3 = 0V
MIN TYP MAX
l6
55
2
1.3
4
3
5
3
3.1
2
1.4
3
70
150
0.4
0.7
1.47 1.51 1.53
10
4.25 5.1 5.75
1.15 1.21 1.25
200
90
99
80
90
330
0.8
1.0 1.25
500 650 750
700
3
170 200 230
900 1000 1100
0.4
1.6
240
1000
200
2.2
l 1.96 2.0 2.04
200
1.0
540
200
98
l 97
100 102
100 103
±0.35 ±1.5
l
±0.35 ±2
1.07
0.29
10
15
1
1.2
1.6
200
UNITS
V
µA
mA
mA
V
µA
mA
µA
V
V
nA
µA
V
nA
%
%
mV
A
mA
nA
mA
kHz
kHz
V
V
kHz
kHz
nA
ms
V
µA
V
mV
nA
mA
mA
%
%
V
V
V
V
nA
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