LM3501TL-16 National Semiconductor Corporation, LM3501TL-16 Datasheet - Page 5

• Manufacturer Part Number: LM3501TL-16
• Description: Synchronous Step-up DC/DC Converter For White Led Applications
• Manufacturer: National Semiconductor Corporation

SHDN
Threshold
Electrical Characteristics
Specifications in standard type face are for T
Range (T
Note 1: Absolute maximum ratings are limits beyond which damage to the device may occur. Operating Ratings are conditions for which the device is intended to
be functional, but device parameter specifications may not be guaranteed. For guaranteed specifications and test conditions, see the Electrical Characteristics.
Note 2: This condition applies if V
Note 3: The maximum allowable power dissipation is a function of the maximum operating junction temperature, T
resistance, θ
ambient temperature is calculated using: P
Note 4: The human body model is a 100 pF capacitor discharged through a 1.5 kΩ resistor into each pin. The machine model is a 200 pF capacitor discharged
directly into each pin.
Note 5: All limits guaranteed at room temperature (standard typeface) and at temperature extremes (bold typeface). All room temperature limits are production
tested, guaranteed through statistical analysis or guaranteed by design. All limits at temperature extremes are guaranteed via correlation using standard Statistical
Quality Control (SQC) methods. All limits are used to calculate Average Outgoing Quality Level (AOQL).
Note 6: Typical numbers are at 25˚C and represent the most likely norm.
Note 7: Feedback current flows out of the pin.
Note 8: Current flows into the pin.
Typical Performance Characteristics
Symbol
J
JA
= −40˚C to +125˚C). Unless otherwise specified V
, and the ambient temperature, T
Switching Quiescent Current vs V
SHDN low
SHDN High
Efficiency = 100*(P
2 LED Efficiency vs Load Current
L = Coilcraft DT1608C-223,
Parameter
IN
<
V
OUT
D
IN
(MAX) = (T
/(2V
. If V
A
. See the Thermal Properties section for the thermal resistance. The maximum allowable power dissipation at any
LED
IN
>
*I
J(MAX)
V
LED
(Continued)
OUT
J
20065357
20065355
= 25˚C and those in boldface type apply over the full Operating Temperature
))
, a voltage greater than V
IN
− T
A
)/θ
Conditions
JA
. Exceeding the maximum allowable power dissipation will cause excessive die temperature.
IN
5
=2.7V.
IN
+ 0.3V should not be applied to the V
Non-Switching Quiescent Current vs V
(Note 5)
Efficiency = 100*(P
3 LED Efficiency vs Load Current
Min
1.1
L = Coilcraft DT1608C-223,
(Note 6)
0.65
0.65
Typ
J(MAX)
IN
OUT
/(3V
, the junction-to-ambient thermal
or V
LED
(Note 5)
Max
SW
0.3
*I
LED
pins.
20065358
20065356
))
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IN
Units
V