TPS61300_16 Datasheet, PDF (1/70 Pages) Texas Instruments – TPS6130xx 1.5-A and 4.1-A Multiple LED Camera Flash Driver With I2C Compatible Interface

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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 V_F 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
(400‑mA, 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.