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TPS61305A Datasheet Preview

TPS61305A Datasheet

1.5-A and 4.1-A Multiple LED Camera Flash Driver

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TPS61300, TPS61301
TPS61305, TPS61305A, TPS61306
SLVS957E – JUNE 2009 – REVISED APRIL 2016
TPS6130xx 1.5-A and 4.1-A Multiple LED Camera Flash Driver With I2C Compatible
Interface
1 Features
1 Four Operational Modes
– DC Light and Flashlight
– Voltage Regulated Converter: 3.8 V to 5.7 V
– Standby: 2 μA (Typical)
• Storage Capacitor Friendly Solution
• Automatic VF and ESR Calibration
• Power-Save Mode for Improved Efficiency at Low
Output Power, Up to 95% Efficiency
• Output Voltage Remains Regulated When Input
Voltage Exceeds Nominal Output Voltage
• I2C Compatible Interface up to 3.4 Mbits/s
• Zero Latency Tx-Masking Input
• Hardware Voltage Mode Selection Input
(TPS61300, TPS61301)
• DC Light Mode Selection Input
(TPS61300, TPS61306)
• Hardware Reset Input (TPS61301, TPS61305)
• LED Temperature Monitoring (TPS61305)
• Privacy Indicator LED Output
• Integrated LED Safety Timer
• Total Solution Size of Less Than 25 mm2 (< 1 mm
height)
• Available in a 20-Pin NanoFree™ (DSBGA)
2 Applications
• Single, Dual, or Triple White LED Flashlight
Supply for Cell Phones and Smart-Phones
• LED Based Xenon Killer Flashlight
• Audio Amplifier Power Supply
3 Description
The TPS6130xx device is based on a high-frequency
synchronous boost topology with constant current
sinks to drive up to three white LEDs in parallel
(400mA, 800-mA, and 400-mA maximum flash
current). The extended high-current mode (HC_SEL)
allows up to 1025-mA, 2050-mA, and 1025-mA flash
current out of the storage capacitor.
The high-capacity storage capacitor on the output of
the boost regulator provides the high-peak flash LED
current, thereby reducing the peak current demand
from the battery to a minimum.
The 2-MHz switching frequency allows the use of
small and low profile 2.2-μH inductors. To optimize
overall efficiency, the device operates with a 400-mV
LED feedback voltage.
The TPS6130xx device not only operates as a
regulated current source, but also as a standard
voltage boost regulator. The device keeps the output
voltage regulated even when the input voltage
exceeds the nominal output voltage. The device
enters power-save mode operation at light load
currents to maintain high efficiency over the entire
load current range.
To simplify flashlight synchronization with the camera
module, the device offers a trigger pin
(FLASH_SYNC) for zero latency LED turnon time.
Table 1. Device Information(1)
PART NUMBER
TPS6130xx
PACKAGE
DSBGA (20)
BODY SIZE (NOM)
1.90 mm × 2.20 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Figure 1. Simplified Schematic
2.5 V..5.5 V
TPS 61300
L
SW
2.2 mH SW
VOUT
AVIN
CI
HC_SEL
BAL
CO
10 mF
D1 D2
PHONE POWER ON
CAMERA ENGINE
I2C I/F
ENDCL
LED 1
FLASH_SYNC LED2
LED 3
SCL
SDA
INDLED
Tx- MASK
1.8 V
Privacy
Indicator
FLASH READY
ENVM
AGND
GPIO/PG
PGND
PGND
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

TPS61305A Datasheet Preview

TPS61305A Datasheet

1.5-A and 4.1-A Multiple LED Camera Flash Driver

No Preview Available !

TPS61300, TPS61301
TPS61305, TPS61305A, TPS61306
SLVS957E – JUNE 2009 – REVISED APRIL 2016
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Device Comparison Table..................................... 3
6 Pin Configuration and Functions ......................... 3
7 Specifications......................................................... 5
7.1 Absolute Maximum Ratings ...................................... 5
7.2 ESD Ratings.............................................................. 5
7.3 Recommended Operating Conditions....................... 5
7.4 Thermal Information .................................................. 5
7.5 Electrical Characteristics........................................... 6
7.6 Timing Requirements ................................................ 8
7.7 Typical Characteristics ............................................ 11
8 Detailed Description ............................................ 16
8.1 Overview ................................................................. 16
8.2 Functional Block Diagrams ..................................... 17
8.3 Feature Description................................................. 22
8.4 Device Functional Modes........................................ 30
8.5 Register Maps ......................................................... 39
9 Application and Implementation ........................ 50
9.1 Application Information............................................ 50
9.2 Typical Applications ................................................ 50
9.3 System Examples ................................................... 58
10 Power Supply Recommendations ..................... 62
11 Layout................................................................... 62
11.1 Layout Guidelines ................................................. 62
11.2 Layout Example .................................................... 63
11.3 Thermal Considerations ........................................ 63
12 Device and Documentation Support ................. 64
12.1 Related Links ........................................................ 64
12.2 Community Resources.......................................... 64
12.3 Trademarks ........................................................... 64
12.4 Electrostatic Discharge Caution ............................ 64
12.5 Glossary ................................................................ 64
13 Mechanical, Packaging, and Orderable
Information ........................................................... 64
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision D (October 2012) to Revision E
Page
• Added ESD Ratings table, Feature Description section, Device Functional Modes, Application and Implementation
section, Power Supply Recommendations section, Layout section, Device and Documentation Support section, and
Mechanical, Packaging, and Orderable Information section .................................................................................................. 1
Changes from Revision C (August 2012) to Revision D
Page
• Added note specifying silicon revision ID bits can differ depending on the product die revision number............................ 49
Changes from Revision B (September 2011) to Revision C
Page
• Changed active cell balancing circuitry maximum quiescent current into VOUT from 3.0 to 6.0 µA ..................................... 7
• Added additional information related to the DC-DC input current limiting scheme. ............................................................. 36
• Added additional information related to the DC-DC input current limiting scheme. ............................................................. 36
• Added note 2 to REGISTER1 DESCRIPTION (TPS61300, TPS61301) table..................................................................... 40
• Added note 2 to REGISTER1 DESCRIPTION (TPS61305, TPS61306) table..................................................................... 41
Changes from Revision A (September 2010) to Revision B
Page
• Changed ISTBY MAX current from 5 µA to 12 µA .................................................................................................................... 6
Changes from Original (June 2009) to Revision A
Page
• Deleted product preview device number TPS61306 from data sheet header........................................................................ 1
2
Submit Documentation Feedback
Copyright © 2009–2016, Texas Instruments Incorporated
Product Folder Links: TPS61300 TPS61301 TPS61305


Part Number TPS61305A
Description 1.5-A and 4.1-A Multiple LED Camera Flash Driver
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