lm2758tlx National Semiconductor Corporation, lm2758tlx Datasheet - Page 3

• Manufacturer Part Number: lm2758tlx
• Description: Switched Capacitor Flash Led Driver In Micro Smd
• Manufacturer: National Semiconductor Corporation

I
V
I
I
V
V
R
F
I
I
T
V
V
LED
D
LED-IND
Q
SD
Symbol
SW
OUT
SET
GDX
OUT
IH
IL
OUT
/I
Absolute Maximum Ratings
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
ESD Caution Notice
National Semiconductor recommends that all integrated circuits be handled with appropriate ESD precautions. Failure to observe
proper ESD handling techniques can result in damage to the device.
Electrical Characteristics
Limits in standard typeface are for T
C
V
V
EN1, EN2 pins: Voltage to GND
Continuous Power Dissipation
(Note 3)
Junction Temperature (T
Storage Temperature Range
Maximum Lead Temp. (Soldering)
SET
EN1
≤
IN
, CP
T
= V
J
≤
OUT
IN
+125 °C). Unless otherwise noted, specifications apply to the LM2758 Typical Application Circuit (pg.1) with V
LED Current Accuracy
I
LED Current to Set Current
Ratio
Indicator Current Level
1x to 1.5x Gain Transition
Voltage Threshold on
V
Output Voltage
1x Mode Output
Impedance
1.5x Mode Output
Impedance
Switching Frequency
Quiescent Current
Shutdown Current
Time-out Duration
Input Logic High
Input Logic Low
, V
SET
LED
pins: Voltage to GND
EN2
Pin Voltage
-
= 0V, C
Parameter
1
J-MAX
= C
2
)
= 1 µF, C
J
= 25°C. Limits in boldface type apply over the full operating junction temperature range (-40°
I
Flash Mode
Torch Mode
Indicator Mode
32 kHZ PWM Mode
I
V
1x Mode, I
1.5x Mode, I
I
I
I
I
Device Disabled (Note 11)
(Note 12)
Pins: EN1, EN2
Pins: EN1, EN2
LED
OUT
OUT
OUT
OUT
OUT
-0.3V to (V
LED
IN
= 500 mA, Flash Mode
= 500 mA
= 200mA, V
= 500mA, V
= 0 mA 1x Mode
= 0 mA 1.5x Mode
Internally Limited
= C
Falling
-65°C to 150°C
-0.3V to 6.0V
OUT
w/ 6.0V max
(Notes 2, 7)
(Notes 1, 2)
OUT
IN
OUT
= 2.2 µF, R
(Note 4)
+ 0.3V)
= 0 mA
150°C
= 0 mA (Note 9)
IN
IN
Conditions
= 3.3V
= 3.3V (Note 10)
SET
3
= 20 kΩ (Note 8).
Operating Ratings
Thermal Information
Input Voltage Range
Junction Temperature Range (T
Ambient Temperature Range (T
(Note 5)
Junction-to-Ambient Thermal Resistance,
Resistance (θ
(Note 6)
JA
), micro SMD package
Min
450
640
0.8
1.2
1/32 x
TORCH
7650
1639
0.33
1.25
0.01
I
Typ
500
300
814
1.3
V
4.8
1.5
0.7
LED-
4
A
(Notes 1, 2)
J
IN
)
)
1000
-40°C to +125°C
Max
0.53
550
-40°C to +85 °C
5.3
2.0
1.5
0.8
0.4
5
1
2.7V to 5.5V
www.national.com
IN
56°C/W
= 3.6V,
Units
msec
MHz
mA
mA
mV
mA
µA
V
V
Ω
V
V