900,000+ datasheet pdf search and download

Datasheet4U offers most rated semiconductors data sheet pdf






etcTI

LM2758 Datasheet Preview

LM2758 Datasheet

Switched Capacitor Flash LED Driver

No Preview Available !

Product
Folder
Sample &
Buy
Technical
Documents
Tools &
Software
Support &
Community
LM2758
SNVS551E – APRIL 2008 – REVISED MAY 2016
LM2758 Switched Capacitor Flash LED Driver in DSBGA Package
1 Features
1 Up to 700-mA Output Current
• 90% Peak Efficiency
• Indicator, Torch, and Flash Modes
• Time-Out Circuitry Limits Flash Duration to 814
Milliseconds (Typical)
• Adaptive 1× and 1.5× Gains for Maximum
Efficiency
• True Shutdown
• Internal Soft-Start Eliminates Inrush Current
• Ultra-Small Solution Size
– No Inductor, Only 4 Capacitors and a Resistor
Required
– 2.022 mm × 1.527 mm × 0.6 mm Thin DSBGA
package
2 Applications
• Camera Flash in Mobile Phones
• Flash for Digital Cameras
3 Description
The LM2758 device is an integrated low-noise, high-
current switched capacitor DC-DC converter with a
regulated current sink. The device is capable of
driving loads up to 700 mA from a single-cell Li-Ion
battery. Maximum efficiency is achieved over the
input voltage range by actively selecting the proper
gain based on the LED forward voltage and current
requirements.
One external low-power resistor sets the desired
current for indicator, torch, and flash modes. To
protect the devices and the flash LED, internal time-
out circuitry turns off the LM2758 in case of a faulty
prolonged flash mode. Internal soft-start circuitry
limits the amount of inrush current during start-up.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (MAX)
LM2758
DSBGA (12)
2.022 mm × 1.527 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Typical Application Circuit
C1 C2
2.7 V to 5.5 V
+ CIN
-
C1+
VIN
C1- C2+
LM2758
C2-
CPOUT
COUT
EN1
EN2 ISET
RSET
LED-
PGND SGND
Copyright © 2016, Texas Instruments Incorporated
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.




etcTI

LM2758 Datasheet Preview

LM2758 Datasheet

Switched Capacitor Flash LED Driver

No Preview Available !

LM2758
SNVS551E – APRIL 2008 – REVISED MAY 2016
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Pin Configuration and Functions ......................... 3
6 Specifications......................................................... 4
6.1 Absolute Maximum Ratings ..................................... 4
6.2 ESD Ratings.............................................................. 4
6.3 Recommended Operating Conditions....................... 4
6.4 Thermal Information .................................................. 4
6.5 Electrical Characteristics........................................... 5
6.6 Typical Characteristics .............................................. 6
7 Detailed Description .............................................. 7
7.1 Overview ................................................................... 7
7.2 Functional Block Diagram ......................................... 7
7.3 Feature Description................................................... 7
7.4 Device Functional Modes........................................ 10
8 Application and Implementation ........................ 11
8.1 Application Information............................................ 11
8.2 Typical Application ................................................. 11
9 Power Supply Recommendations...................... 14
9.1 Power Dissipation ................................................... 14
10 Layout................................................................... 15
10.1 Layout Guidelines ................................................. 15
10.2 Layout Example .................................................... 15
10.3 DSBGA Package Assembly and Use ................... 16
11 Device and Documentation Support ................. 17
11.1 Device Support...................................................... 17
11.2 Documentation Support ........................................ 17
11.3 Community Resources.......................................... 17
11.4 Trademarks ........................................................... 17
11.5 Electrostatic Discharge Caution ............................ 17
11.6 Glossary ................................................................ 17
12 Mechanical, Packaging, and Orderable
Information ........................................................... 17
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision D (May 2013) to Revision E
Page
• Added Device Information and Pin Configuration and Functions sections, ESD Ratings table, Feature Description,
Device Functional Modes, Application and Implementation, Power Supply Recommendations, Layout, Device and
Documentation Support, and Mechanical, Packaging, and Orderable Information sections ................................................. 1
• Added Thermal Information table with revised RθJA value (from 56°C/W to 93.6°C/W) and additional thermal values. ....... 4
Changes from Revision C (May 2013) to Revision D
Page
• Changed layout of National Semiconductor Data Sheet to TI format ................................................................................. 16
2 Submit Documentation Feedback
Product Folder Links: LM2758
Copyright © 2008–2016, Texas Instruments Incorporated


Part Number LM2758
Description Switched Capacitor Flash LED Driver
Maker etcTI
PDF Download

LM2758 Datasheet PDF






Similar Datasheet

1 LM2750 Low Noise/ 5.0V Regulated Switched Capacitor Voltage Converter
National Semiconductor
2 LM2750 Low-Noise Switched-Capacitor Boost Regulator
etcTI
3 LM2750-ADJ Low-Noise Switched-Capacitor Boost Regulator
etcTI
4 LM2751 White LED Driver
etcTI
5 LM2751 Capacitor White LED Driver
National Semiconductor
6 LM2753 High-Power Switched-Capacitor Voltage Converter and Flash LED Driver
etcTI
7 LM2753 High Power Switched Capacitor Voltage Convertor/Flash LED Driver
National Semiconductor
8 LM2754 800mA Switched Capacitor Flash LED Driver
etcTI
9 LM2754 800mA Switched Capacitor Flash LED Driver
National Semiconductor





Part Number Start With

0    1    2    3    4    5    6    7    8    9    A    B    C    D    E    F    G    H    I    J    K    L    M    N    O    P    Q    R    S    T    U    V    W    X    Y    Z



Site map

Webmaste! click here

Contact us

Buy Components

Privacy Policy