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TPS92602-Q1

ACTIVE

Automotive 2 channel high side current sense switching mode LED driver

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TPS92692-Q1 ACTIVE high-accuracy LED controller with spread spectrum frequency modulation and internal PWM Generator Higher input voltage and higher current output with1 channel instead of 2 channels.

TPS92602-Q1

ACTIVE
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Product details

Number of channels 2 Topology Boost Controller, Buck Controller, Buck-Boost Controller, Flyback Controller, SEPIC Controller Rating Automotive Operating temperature range (°C) -40 to 125 Vin (min) (V) 4 Vin (max) (V) 40 Vout (min) (V) 4 Vout (max) (V) 75 Iout (max) (A) 1.5 Iq (typ) (mA) 8 Switching frequency (max) (kHz) 600 Features Adjustable Switch Frequency, Enable/Shutdown, Soft Start, Synchronization Pin, Thermal shutdown
Number of channels 2 Topology Boost Controller, Buck Controller, Buck-Boost Controller, Flyback Controller, SEPIC Controller Rating Automotive Operating temperature range (°C) -40 to 125 Vin (min) (V) 4 Vin (max) (V) 40 Vout (min) (V) 4 Vout (max) (V) 75 Iout (max) (A) 1.5 Iq (typ) (mA) 8 Switching frequency (max) (kHz) 600 Features Adjustable Switch Frequency, Enable/Shutdown, Soft Start, Synchronization Pin, Thermal shutdown
HTSSOP (PWP) 28 62.08 mm² 9.7 x 6.4
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature
    • Device HBM ESD Classification Level 2
    • Device CDM ESD Classification Level C4B
  • Input Voltage: 4 V–40 V (45 V Abs. Max.)
  • Output Voltage: 4 V–75 V (80 V Abs. Max.)
  • Fixed-Frequency Current-Mode Controller With Integrated Slope Compensation
  • Two Regulation Loops, Constant-Current Output and Constant-Voltage Output of Each Channel
  • High-Side Current Sense:
    • 150-mV or 300-mV Sense Voltage (EEPROM Option)
    • ±6-mV Offset (Achieving Approx. 4% or 2% LED Current Accuracy)
  • Output Voltage Sense, Internal Voltage Reference: 2.2 V ±5%
  • Integrated Low-Side NMOS-FET Driver: Peak Gate-Drive Current Typ. 0.7 A
  • Frequency Synchronization
  • Both PWM Dimming and Analog Dimming
  • Diagnostic:
    • High-Side Current (LED Current) Available as Analog Output
    • Open-LED and Short-to-GND Detection
    • Shorted Output Protection
  • Internal Under- and Overvoltage Lockout
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature
    • Device HBM ESD Classification Level 2
    • Device CDM ESD Classification Level C4B
  • Input Voltage: 4 V–40 V (45 V Abs. Max.)
  • Output Voltage: 4 V–75 V (80 V Abs. Max.)
  • Fixed-Frequency Current-Mode Controller With Integrated Slope Compensation
  • Two Regulation Loops, Constant-Current Output and Constant-Voltage Output of Each Channel
  • High-Side Current Sense:
    • 150-mV or 300-mV Sense Voltage (EEPROM Option)
    • ±6-mV Offset (Achieving Approx. 4% or 2% LED Current Accuracy)
  • Output Voltage Sense, Internal Voltage Reference: 2.2 V ±5%
  • Integrated Low-Side NMOS-FET Driver: Peak Gate-Drive Current Typ. 0.7 A
  • Frequency Synchronization
  • Both PWM Dimming and Analog Dimming
  • Diagnostic:
    • High-Side Current (LED Current) Available as Analog Output
    • Open-LED and Short-to-GND Detection
    • Shorted Output Protection
  • Internal Under- and Overvoltage Lockout

The TPS9260x-Q1 family of devices is a single-channel and dual-channel high-side-current LED driver. With full protection and diagnostics, this family of devices is dedicated for and ideally suited to automotive front lighting. The base of each independent driver is a peak-current-mode boost controller. Each controller has two independent feedback loops, a current-feedback loop with a high-side current-sensing shunt and a voltage-feedback loop with an external resistor-divider network. The controller delivers a constant output voltage or a constant output current. The connected load determines whether the device regulates a constant output current (if the circuit reaches the current set-point earlier than voltage set-point) or a constant output voltage (if the circuit reaches the voltage set-point is reached first, for example, in an open-load condition).

Each controller supports all typical topologies such as boost, boost-to-battery, SEPIC, or flyback.

Uses of the high-side PMOS FET driver are for PWM dimming of the LED string and for cutoff in case of an external short circuit to GND to protect the circuit.

The TPS9260x-Q1 family of devices is a single-channel and dual-channel high-side-current LED driver. With full protection and diagnostics, this family of devices is dedicated for and ideally suited to automotive front lighting. The base of each independent driver is a peak-current-mode boost controller. Each controller has two independent feedback loops, a current-feedback loop with a high-side current-sensing shunt and a voltage-feedback loop with an external resistor-divider network. The controller delivers a constant output voltage or a constant output current. The connected load determines whether the device regulates a constant output current (if the circuit reaches the current set-point earlier than voltage set-point) or a constant output voltage (if the circuit reaches the voltage set-point is reached first, for example, in an open-load condition).

Each controller supports all typical topologies such as boost, boost-to-battery, SEPIC, or flyback.

Uses of the high-side PMOS FET driver are for PWM dimming of the LED string and for cutoff in case of an external short circuit to GND to protect the circuit.
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Type Title Date
* Data sheet TPS9260x-Q1 Single- and Dual-Channel Automotive Headlight LED Driver datasheet (Rev. E) PDF | HTML 12 Jul 2018
White paper LED Drivers for Automotive Exterior Applications (Rev. B) 27 Mar 2018
EVM User's guide TPS92602-Q1 EVM User's Guide 04 Apr 2014

Design & development

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Evaluation board

TPS92602EVM — TPS92602EVM: 2 Channel High Side Current Sense LED Driver Evaluation Module

The TPS92602EVM evaluation module (EVM) helps designers evaluate the operation and performance of the TPS92602-Q1 2-channel high side current sense DCDC MOSFET controller. The TPS92602-Q1is designed to drive automotive high-brightness light emitting diodes (LEDs) and features a wide input voltage (...)

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TPS92602-Q1 Unencrypted PSpice Transient Model Package (Rev. C)

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PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
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