LM3421_09 Datasheet, PDF (4/24 Pages) National Semiconductor (TI) – N-Channel Controllers for Constant Current LED Drivers

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
OVP, HSP, HSN, LRDY, FLT,
DPOL
RCT
IS
V_CC
TIMR
COMP, CSH
GATE, DDRV
-0.3V to 76.0V
-1mA continuous
-0.3V to 76.0V
-100µA continuous
-0.3V to 76.0V
-1mA to +5mA continuous
-0.3V to 76.0V
-2V for 100ns
-1mA continuous
-0.3V to 8.0V
-0.3V to 7.0V
-100µA to +100µA
Continuous
-0.3V to 6.0V
-200µA to +200µA
Continuous
-0.3V to V_CC
-2.5V for 100ns
V_CC+2.5V for 100ns
-1mA to +1mA continuous
PGND
Maximum Junction
Temperature (Internally
Limited)
Storage Temperature Range
Maximum Lead Temperature
(Soldering) (Note 5)
Continuous Power Dissipation
(Notes , 4)
ESD Susceptibility
(Note 6)
Human Body Model
Machine Model
Charge Device Model
-0.3V to 0.3V
-2.5V to 2.5V for 100ns
165°C
−65°C to +150°C
300°C
Internally Limited
2kV
200V
500V
Operating Conditions (Notes 1, 2)
Operating Junction
Temperature Range (Note 7)
Input Voltage V_IN
−40°C to +150°C
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_CCLIM
V_CC Current Limit
I_Q
Quiescent Current
I_SD
Shutdown Current
V_CC SUPPLY
V_CCUV
V_CC UVLO Threshold
V_CCHYS
V_CC UVLO Hysteresis
EN THRESHOLDS
I_CC = 0mA
V_CC = 0V
EN = 3.0V, Static
EN = 0V
V_CC Increasing
V_CC Decreasing
6.30
6.90
20
25
2
0.1
4.17
3.70
4.08
0.1
7.35
V
mA
3
1.0
µA
4.50
V
EN_ST
EN Startup Threshold
EN Increasing
EN Decreasing
1.75
2.40
0.80
1.63
V
EN_STHYS
EN Startup Hysteresis
R_EN
EN Pulldown Resistance
CSH THRESHOLDS
EN = 1V
0.1
0.45
0.82
1.30
MΩ
CSH High Fault
CSH Increasing
1.6
CSH Low Condition on LRDY CSH increasing
Pin (LM3423 only)
V
1.0
OV THRESHOLDS
OVP_CB
OVP_HYS
OVP OVLO Threshold
OVP Hysteresis Source
Current
OVP Increasing
OVP Active (high)
1.185
1.240
1.285
V
20
23
25
µA
DPOL THRESHOLDS
DPOL_THRESH DPOL Logic Threshold
DPOL Increasing
2.0
2.3
2.6
V
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