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Product details

Parameters

Vin (Min) (V) 2.5 Vin (Max) (V) 5.5 Number of LEDs 3 Iout (Max) (A) 1.5 Iq (Typ) (mA) 0.59 Features I2C Control Operating temperature range (C) -40 to 85 open-in-new Find other Flash LED drivers

Package | Pins | Size

DSBGA (YFF) 20 0 mm² 2.21 x 1.968 open-in-new Find other Flash LED drivers

Features

  • 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 Mbps
  • Dual Wire Camera Module Interface
  • Zero Latency Tx-Masking Input
  • LED Temperature Monitoring
  • Privacy Indicator LED Output
  • Integrated LED Safety Timer
  • GPIO/Flash Ready Output
  • Total Solution Size of Less Than 25 mm2 (< 1-mm height)
  • Available in a 20-Pin NanoFree (DSBGA)

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Description

The TPS6132x device is based on a high-frequency synchronous boost topology with constant current sinks to drive up to three white LEDs in parallel (445-mA, 890-mA, 445-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 TPS6132x 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 DC-light and flashlight synchronization with the camera module, the device offers a dedicated control interface (STRB0 and STRB1 pins) for zero latency LED turnon time.

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Technical documentation

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Type Title Date
* Datasheet TPS6132x 1.5-A to 4.1-A Multiple LED Camera Flash Driver With I2C Compatible Interface datasheet (Rev. B) Jul. 13, 2016
Application notes Performing Accurate PFM Mode Efficiency Measurements (Rev. A) Dec. 11, 2018
Selection guides Power Management Guide 2018 (Rev. R) Jun. 25, 2018
Technical articles Here's how body electronics and lighting technology are changing the driving experience Sep. 26, 2016
Technical articles LED brightness adjustment: high-frequency PWM dimming Aug. 26, 2016
Technical articles Take better selfies with innovative LED flashes Nov. 18, 2014
Technical articles Solving the automotive EMI issues in new cars with all the screens Sep. 10, 2014
Application notes Choosing an Appropriate Pull-up/Pull-down Resistor for Open Drain Outputs Sep. 19, 2011

Design & development

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DSBGA (YFF) 20 View options

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