Automotive 2 channel High side current sense switching mode LED driver - TPS92602-Q1

TPS92602-Q1 (ACTIVE)

Automotive 2 channel High side current sense switching mode LED driver

Description

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.

Features

  • 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

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Parametrics Compare all products in Automotive LED Driver

 
Channels (#)
Vin (Min) (V)
Vin (Max) (V)
Vout (Min) (V)
Vout (Max) (V)
Iout (Max) (A)
Iq (Typ) (mA)
LED Current Per Channel (mA)
Switching Frequency (Max) (kHz)
Operating Temperature Range (C)
Special Features
Applications
Package Group
Estimated Package Size (WxL) (mm2)
Approx. Price (US$)
Topology (Nom)
Rating
TPS92602-Q1 TPS92601-Q1
2     1    
4     4    
40     40    
4     4    
75     75    
1.5     1.5    
8     8    
1500     1500    
600     600    
-40 to 125     -40 to 125    
Adjustable Switch Frequency
Enable/Shutdown
Soft Start
Synchronization Pin
Thermal Shutdown    
Adjustable Switch Frequency
Enable/Shutdown
Soft Start
Synchronization Pin
Thermal Shutdown    
Daytime Running
Fog
Headlamp
Position
Turn    
Daytime Running
Fog
Headlamp
Position
Turn    
HTSSOP     HTSSOP    
28HTSSOP: 42.68 mm2: 4.4 x 9.7     20HTSSOP: 28.6 mm2: 4.4 x 6.5    
3.00 | 1ku     1.80 | 1ku    
Boost Controller
Buck Controller
Buck-Boost Controller
Flyback Controller
Sepic Controller    
Boost Controller
Buck Controller
Buck-Boost Controller
Flyback Controller
Sepic Controller    
Automotive     Automotive