LM3414SDX National Semiconductor Corporation, LM3414SDX Datasheet - Page 6

• Manufacturer Part Number: LM3414SDX
• Description: Lm3414/lm3414hv 1a 60w* Common Anode Capable Constant Current Buck Led Driver Requires No External Current Sensing Resistor
• Manufacturer: National Semiconductor Corporation

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Electrical Characteristics
for T
specification limits are obtained under device test mode and guaranteed by design, test, or statistical analysis.
LM3414
LM3414HV
LM3414/LM3414HV
Symbol
SYSTEM PARAMETERS
I
I
I
Symbol
SYSTEM PARAMETERS
I
I
I
Symbol
SYSTEM PARAMETERS
I
V
V
V
V
V
f
f
t
INTERNAL VOLTAGE REGULATOR
V
MAIN SWITCH
R
THERMAL PROTECTION
T
IN-DIM-HIGH
IN-DIM-LOW
LX-OFF
IN-DIM-HIGH
IN-DIM-LOW
LX-OFF
LED
SW
SW-TOL
ON-MIN
SD
CC-UVLO
CC-UVLO-HYS
IADJ
DIM
DIM-HYS
CC
LX
A
=T
J
= +25°C (Note 4). Limits appearing in boldface type apply over full Operating Temperature Range. Datasheet min/max
Parameter
Operating Current
Standby Current
LX Pin Current
Parameter
Operating Current
Standby Current
LX Pin Current
Parameter
Average LED Current
Vcc UVLO Threshold
Vcc UVLO Hysteresis
IADJ Pin voltage
DIM Pin Threshold
DIM Pin Hysteresis
Switching Frequency Range
Switching Frequency Tolerance
Minimum On-time
V
5)
Resistance Across LX and GND
Thermal Shutdown Temperature
CC
Regulator Output Voltage (Note
V
IN
= 24V unless otherwise indicated. Typical and limits appearing in plain type apply
Conditions
4.5V
R
V
4.5V
R
V
Main Switch Turned OFF
V
Conditions
4.5V
R
V
4.5V
R
V
Main Switch Turned OFF
V
Conditions
R
T
R
T
V
V
R
C
Vin = 4.5V, 2 mA Load
Main Switch Turned ON
T
DIM
DIM
LX
DIM
DIM
LX
A
A
CC
DIM
J
IADJ
IADJ
IADJ
IADJ
IADJ
IADJ
FS
VCC
Rising
6
= 25°C
= –40°C to 125°C
= V
= V
= 40 kΩ
Decreasing
= High
= Low
= High
= Low
Increasing
≤
≤
≤
≤
= 1µF, No Load to I
= 3.125 kΩ
= 3.125 kΩ
= 3.125 kΩ
= 3.125 kΩ
= 3.125 kΩ
= 3.125 kΩ
Vin
Vin
IN
Vin
Vin
IN
= 65V
= 42V
≤
≤
≤
≤
42V
42V
65V
65V
VCC
= 2mA
1.230
0.97
0.95
3.60
Min
Min
Min
250
420
2.2
0.8
2.2
0.8
4.7
3.8
1.255
1.15
3.75
Typ
Typ
Typ
300
100
500
500
170
3.2
3.3
1.2
6.5
1.0
5.4
4.2
6
1
1
1.280
1000
1.45
1.03
1.05
3.90
Max
Max
Max
580
400
3.5
1.4
3.6
1.2
6.0
1.8
Units
Units
Units
kHz
kHz
mA
mA
mA
mA
mV
mV
µA
µA
°C
ns
A
A
V
V
V
V
V
Ω