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LM3421 Datenblatt(PDF) 4 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor. Click here to check the latest version.
Teilenummer LM3421
Bauteilbeschribung  N-Channel Controllers for Constant Current LED Drivers
Download  24 Pages
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Hersteller  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

LM3421 Datenblatt(HTML) 4 Page - National Semiconductor (TI)

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Absolute Maximum Ratings (Notes 1, 2)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
V
IN, EN, RPD, nDIM
-0.3V to 76.0V
-1mA continuous
OVP, HSP, HSN, LRDY, FLT,
DPOL
-0.3V to 76.0V
-100µA continuous
RCT
-0.3V to 76.0V
-1mA to +5mA continuous
IS
-0.3V to 76.0V
-2V for 100ns
-1mA continuous
V
CC
-0.3V to 8.0V
TIMR
-0.3V to 7.0V
-100µA to +100µA
Continuous
COMP, CSH
-0.3V to 6.0V
-200µA to +200µA
Continuous
GATE, DDRV
-0.3V to V
CC
-2.5V for 100ns
V
CC+2.5V for 100ns
-1mA to +1mA continuous
PGND
-0.3V to 0.3V
-2.5V to 2.5V for 100ns
Maximum Junction
Temperature (Internally
Limited)
165°C
Storage Temperature Range
−65°C to +150°C
Maximum Lead Temperature
(Soldering) (Note 5)
300°C
Continuous Power Dissipation
(Notes , 4)
Internally Limited
ESD Susceptibility
(Note 6)
Human Body Model
2kV
Machine Model
200V
Charge Device Model
500V
Operating Conditions (Notes 1, 2)
Operating Junction
Temperature Range (Note 7)
−40°C to +150°C
Input Voltage V
IN
4.5V to 75V
Electrical Characteristics (Note 2)
Specifications in standard type face are for T
J = 25°C and those with boldface type apply over the full Operating Temperature
Range ( T
J = −40°C to +125°C). Minimum and Maximum limits are guaranteed through test, design, or statistical correlation. Typical
values represent the most likely parametric norm at T
J = +25°C, and are provided for reference purposes only. Unless otherwise
stated the following condition applies: V
IN = +14V.
Symbol
Parameter
Conditions
Min (Note 7) Typ (Note 8)
Max (Note 7)
Units
STARTUP REGULATOR
V
CCREG
V
CC Regulation
I
CC = 0mA
6.30
6.90
7.35
V
I
CCLIM
V
CC Current Limit
V
CC = 0V
20
25
mA
I
Q
Quiescent Current
EN = 3.0V, Static
2
3
I
SD
Shutdown Current
EN = 0V
0.1
1.0
µA
V
CC SUPPLY
V
CCUV
V
CC UVLO Threshold
V
CC Increasing
4.17
4.50
V
V
CC Decreasing
3.70
4.08
V
CCHYS
V
CC UVLO Hysteresis
0.1
EN THRESHOLDS
EN
ST
EN Startup Threshold
EN Increasing
1.75
2.40
V
EN Decreasing
0.80
1.63
EN
STHYS
EN Startup Hysteresis
0.1
R
EN
EN Pulldown Resistance
EN = 1V
0.45
0.82
1.30
M
CSH THRESHOLDS
CSH High Fault
CSH Increasing
1.6
V
CSH Low Condition on LRDY
Pin (LM3423 only)
CSH increasing
1.0
OV THRESHOLDS
OVP
CB
OVP OVLO Threshold
OVP Increasing
1.185
1.240
1.285
V
OVP
HYS
OVP Hysteresis Source
Current
OVP Active (high)
20
23
25
µA
DPOL THRESHOLDS
DPOL
THRESH DPOL Logic Threshold
DPOL Increasing
2.0
2.3
2.6
V
www.national.com
4


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