LM2751SD-A/NOPB National Semiconductor, LM2751SD-A/NOPB Datasheet - Page 8
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LM2751SD-A/NOPB
Manufacturer Part Number
LM2751SD-A/NOPB
Description
IC LED DRIVR WHITE BCKLGT 10-LLP
Manufacturer
National Semiconductor
Type
Backlight, White LEDr
Datasheet
1.LM2751SD-ANOPB.pdf
(11 pages)
Specifications of LM2751SD-A/NOPB
Topology
PWM, Switched Capacitor (Charge Pump)
Number Of Outputs
1
Internal Driver
Yes
Type - Primary
Backlight
Type - Secondary
White LED
Frequency
725kHz
Voltage - Supply
2.8 V ~ 5.5 V
Voltage - Output
5V
Mounting Type
Surface Mount
Package / Case
10-LLP
Operating Temperature
-40°C ~ 85°C
Current - Output / Channel
80mA
Internal Switch(s)
Yes
Efficiency
90%
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
LM2751SD-A
LM2751SD-ATR
LM2751SD-ATR
www.national.com
Typical Performance Characteristics
= V
IN
V
CH1 (top): V
CH2: V
Time scale: 200µs/Div
CH1: EN pin; Scale: 2V/Div
CH2: V
Time scale: 100µs/Div
IN
, V(EN) = V
= 3.2V - 4.2V Step, Load = 150mA
OUT
OUT
Output Voltage Ripple vs. Input Voltage
; Scale: 50mV/Div, AC Coupled
; Scale: 2V/Div
IN
Version B (4.5V), Load = 120mA
; Scale: 1V/Div, DC Coupled
Version A (5V), Load = 80mA
IN
, C
Line Step Response,
Start-up Behavior,
IN
Version B (4.5V)
= C
OUT
= 2.2µF, C
1
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= C
20112129
2
= 1µF. (Continued)
Unless otherwise specified: T
8
V
CH1: V
Time scale: 400ns/Div
V
CH1 (top): V
CH2: Output Current; Scale: 50mA/Div
Time scale: 200µs/Div
CH1: EN pin; Scale: 2V/Div
CH2: V
Time scale: 100µs/Div
IN
IN
= 3.6V, Load = 150mA
= 3.6V, Load = 20mA - 150mA Step
OUT
OUT
; Scale: 10mV/Div, AC Coupled
; Scale: 2V/Div
OUT
Version B (4.5V), Load = 150mA
; Scale: 50mV/Div, AC Coupled
Output Voltage Ripple,
Load Step Response,
Start-up Behavior,
Version B (4.5V)
Version B (4.5V)
A
= 25˚C, V
IN
= 3.6V, CS0 = CS1
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