LM3404MR/NOPB National Semiconductor, LM3404MR/NOPB Datasheet - Page 6

• Manufacturer Part Number: LM3404MR/NOPB
• Description: IC LED DRVR HP CONST CURR 8-PSOP
• Manufacturer: National Semiconductor
• Series: PowerWise®r
• Type: High Power, Constant Currentr

Specifications of LM3404MR/NOPB

• Constant Current: Yes
• Topology: PWM, Step-Down (Buck)
• Number Of Outputs: 1
• Internal Driver: Yes
• Type - Primary: Automotive
• Type - Secondary: High Brightness LED (HBLED), White LED
• Frequency: 1MHz
• Voltage - Supply: 6 V ~ 42 V
• Mounting Type: Surface Mount
• Package / Case: 8-PSOP
• Operating Temperature: -40°C ~ 125°C
• Current - Output / Channel: 1A
• Internal Switch(s): Yes
• Efficiency: 96%
• For Use With: 551600000-001A/NOPB - BOARD WEBENCH SO8/SOP LM3404/2LM3404MREVAL - BOARD EVALUATION LM3404MR
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Output: -
• Other names: LM3404MR

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Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is
intended to be functional, but specific performance is not guaranteed. For guaranteed specifications and the test conditions, see Electrical Characteristics.
Note 2: The human body model is a 100 pF capacitor discharged through a 1.5 kΩ resistor into each pin.
Note 3: VCC provides self bias for the internal gate drive and control circuits. Device thermal limitations limit external loading.
Note 4: Typical specifications represent the most likely parametric norm at 25°C operation.
Note 5: θ
DIM COMPARATOR
V
V
I
MOSFET AND DRIVER
R
V
V
THERMAL SHUTDOWN
T
T
THERMAL RESISTANCE
θ
DIM-PU
JA
SD
SD-HYS
IH
IL
DS-ON
DR-UVLO
DR-HYS
Symbol
JA
of 50°C/W with DAP soldered to a minimum of 2 square inches of 1oz. copper on the top or bottom PCB layer.
Logic High
Logic Low
DIM Pull-up Current
Buck Switch On Resistance
BST Under-voltage Lock-out
Threshold
BST Under-voltage Lock-out
Hysteresis
Thermal Shutdown Threshold
Thermal Shutdown Hysteresis
Junction to Ambient
Parameter
DIM Increasing
DIM Decreasing
DIM = 1.5V
I
BST–SW Increasing
BST–SW Decreasing
SOIC-8 Package
PSOP-8 Package
SW
= 200mA, BST-SW = 6.3V
6
Conditions
(Note
5)
Min
2.2
1.7
0.37
Typ
400
165
155
80
25
50
3
Max
0.75
0.8
4
Units
°C/W
mV
µA
°C
°C
V
V
Ω
V