LM2794TL/NOPB National Semiconductor, LM2794TL/NOPB Datasheet - Page 3
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LM2794TL/NOPB
Manufacturer Part Number
LM2794TL/NOPB
Description
IC LED DRVR WHT BCKLT 14MICROSMD
Manufacturer
National Semiconductor
Type
Backlight, White LEDr
Datasheet
1.LM2794TLNOPB.pdf
(16 pages)
Specifications of LM2794TL/NOPB
Constant Current
*
Constant Voltage
*
Topology
*
Number Of Outputs
*
Internal Driver
*
Type - Primary
*
Type - Secondary
*
Frequency
*
Voltage - Supply
*
Voltage - Output
*
Mounting Type
Surface Mount
Package / Case
14-MicroSMD
Operating Temperature
*
Current - Output / Channel
*
Internal Switch(s)
Yes
Efficiency
80%
No. Of Outputs
4
Output Current
80mA
Input Voltage
2.7V To 5.5V
Dimming Control Type
PWM / Analog
Operating Temperature Range
-30°C To +85°C
Switching Frequency
515kHz
Rohs Compliant
Yes
For Use With
LM2794EVAL - BOARD EVALUATION LM2794
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
LM2794TL/NOPBTR
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LM2794TL/NOPB
Manufacturer:
Texas Instruments
Quantity:
10 000
I
V
I
I
I
I
I
I
V
V
V
V
I
R
I
DX
DX
DX
D-MATCH
Q
SD
PULL-SD
LEAK-SD
SET
DX
CP
CPH
IH
IL
BRGT
Absolute Maximum Ratings
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Electrical Characteristics
Limits in standard typeface are for T
Range (−30˚C ≤ T
=124Ω ; LM2794:V
Symbol
V
SD
BRGT
Continuous Power Dissipation
(Note 2)
T
JMAX
IN
(Note 2)
Available Current at Output Dx
Available Voltage at Output Dx
Line Regulation of Dx Output
Current
Load Regulation of Dx Output
Current
Current Matching Between Any
Two Outputs
Quiescent Supply Current
Shutdown Supply Current
Shutdown Pull-Up Current
(LM2795)
Input Charge-Pump Mode To
Pass Mode Threshold
Input Charge-Pump Mode To
Pass Mode Hysteresis
SD Input Logic High (LM2794)
SD Input Logic High (LM2795)
SD Input Logic Low (LM2794)
SD Input Logic Low (LM2795)
SD Input Leakage Current
BRGT Input Resistance
I
SET
Pin Output Current
J
SD
≤ +100˚C). Unless otherwise specified, C1 = C2 = C
= V
Parameter
IN
(LM2795: V
J
−0.5 to (V
−0.5 to (V
= 25˚C and limits in boldface type apply over the full Operating Junction Temperature
SD
−0.5 to 6.2V max
Internally Limited
= 0V).
(Note 1)
IN
IN
3.0V ≤ V
V
BRGT = 50mV
2.7V ≤ V
V
BRGT = 0V
V
BRGT = 200mV
3.0V ≤ V
I
BRGT = 50mV
3.0V ≤ V
V
3.0V ≤ V
V
V
3.0V ≤ V
V
3.0V ≤ V
Load Current
R
3.0V ≤ V
V
(Note 5)
3.0V ≤ V
3.0V ≤ V
0V ≤ V
DX
+0.3V) w/
+0.3V) w/
6.2V max
6.2V max
DX
DX
DX
DX
DX
IN
IN
SET
IN
≤ 15mA
= 3.6V
= 3.6V, V
= 3.6V
135˚C
≤ 3.8V
≤ 3.6V
≤ 3.8V
= 3.6V
= 3.6V
= OPEN
SD
IN
IN
IN
IN
IN
DX
IN
IN
IN
IN
≤ V
Conditions
≤ 5.5V
≤ 3.0V
≤ 5.5V
≤ 5.5V
≤ 4.4V
≤ 4.2V, Active, No
≤ 5.5V, Shutdown
≤ 5.5V
≤ 5.5V
≤ 3.8V
DX
IN
3
= 3.6V
Operating Conditions
θ
Storge Temperature
Lead Temp. (Soldering, 5 sec.)
ESD Rating (Note 4)
Input Voltage (V
Ambient Temperature (T
Junction Temperature (T
JA
(Notes 2, 3)
Human Body Model
Machine Model
IN
= C
HOLD
IN
0.8V
= 1 µF, V
14.18
14.18
14.18
)
Min
3.8
1.0
15
10
20
IN
A
J
)
)
IN
I
15.25
15.25
15.25
= 3.6V, BRGT pin = 0V; R
DX
16.8
Typ
250
100
240
0.5
5.5
2.3
1.5
4.7
/10
0.2V
−65˚C to +150˚C
−30˚C to +100˚C
16.78
16.32
16.32
Max
−30˚C to +85˚C
8.2
0.2
5
2.7V to 5.5V
IN
www.national.com
125˚C/W
260˚C
200V
Units
2kV
mA
mA
mA
mA
mA
mA
mA
mV
mA
kΩ
µA
µA
nA
%
V
V
V
V
SET