LM3409EVAL National Semiconductor, LM3409EVAL Datasheet - Page 4

• Manufacturer Part Number: LM3409EVAL
• Description: BOARD EVALUATION FOR LM3409
• Manufacturer: National Semiconductor
• Series: PowerWise®r

Specifications of LM3409EVAL

• Current - Output / Channel: 1A
• Outputs And Type: 1, Non-Isolated
• Voltage - Output: 15V
• Features: Dimmable
• Voltage - Input: 6 ~ 42 V
• Utilized Ic / Part: LM3409
• Kit Contents: Board, Datasheet
• Svhc: No SVHC (15-Dec-2010)
• Kit Features: Drives 4 LEDs At Maximum Average LED Current 1A From DC Input Voltage 24V
• Mcu Supported Families: LM3409
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

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OFF-TIMER AND ON-TIMER
V
t
t
t
UNDER VOLTAGE LOCKOUT
I
V
I
ENABLE
I
V
V
t
t
THERMAL RESISTANCE
θ
D-OFF
ON-MIN
OFF-MAX
UVLO
UVLO-HYS
EN
EN-R
EN-F
JA
OFT
UVLO-R
EN-TH
EN-HYS
Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur, including inoperability and degradation of device reliability
and/or performance. Functional operation of the device and/or non-degradation at the Absolute Maximum Ratings or other conditions beyond those indicated in
the Operating Ratings is not implied. The recommended Operating Ratings indicate conditions at which the device is functional and the device should not be
operated beyond such conditions.
Note 2: The human body model is a 100 pF capacitor discharged through a 1.5 kΩ resistor into each pin.
Note 3: Typical values represent most likely parametric norms at the conditions specified and are not guaranteed.
Note 4: Min and Max limits are 100% production tested at 25°C. Limits over the operating temperature range are guaranteed through correlation using Statistical
Quality Control (SQC) methods. Limits are used to calculate National's Average Outgoing Quality Level (AOQL).
Note 5: θ
upon the application enviroment.
Note 6: The current sense threshold limits are calculated by averaging the results from the two polarities of the high-side differential amplifier.
Note 7: The measurements were made using the Bill of Materials from Design #3.
Note 8: The measurements were made using the Bill of Materials from Design #3 except the LM3409 was substituted for the LM3409HV.
Note 9: The waveforms were acquired using the standard evaluation board from AN-1953.
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. Actual value will be different depending
Off-time threshold
COFF threshold to PGATE
falling delay
Minimum on-time
Maximum off-time
UVLO pin current
Rising UVLO threshold
UVLO hysteresis current
EN pin current
EN pin threshold
EN pin hysteresis
EN pin rising delay
EN pin falling delay
Junction to Ambient
Parameter
V
V
V
EN rise - PGATE fall
EN fall - PGATE rise
eMSOP-10 Package
UVLO
EN
EN
rising
falling
= 1V
4
Conditions
(Note
5)
(Note
1.122
1.175
Min
.5
4)
(Note
1.243
1.243
Typ
115
300
420
25
10
22
10
42
21
50
3)
(Note
1.364
1.311
Max
1.74
211
4)
Units
°C/W
mV
nA
µA
nA
ns
ns
µs
ns
ns
V
V
V