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TPS92601-Q1 Datasheet(PDF) 1 Page - Texas Instruments

Part # TPS92601-Q1
Description  TPS9260x-Q1 Single- and Dual-Channel Automotive Headlight LED Driver
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

TPS92601-Q1 Datasheet(HTML) 1 Page - Texas Instruments

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VBAT
GDRV1
ISNS1
ISP1
ISN1
VOUT1
PWMO1
OVFB1
PWIN1
COMP1
VCC
PGND1
ICTRL1
DIAG1
CHANNEL
1
VBAT
GDRV2
ISNS2
ISP2
ISN2
VOUT2
PWMO2
OVFB2
PWIN2
COMP2
PGND2
RT
ICTRL2
DIAG2
CHANNEL
2
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TPS92602-Q1
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TPS92601-Q1, TPS92602-Q1, TPS92601A-Q1, TPS92602A-Q1
SLUSBP5D – MARCH 2014 – REVISED JANUARY 2015
TPS9260x-Q1 Single- and Dual-Channel Automotive Headlight LED Driver
1 Features
3 Description
The TPS9260x-Q1 family of devices is a single-
1
Qualified for Automotive Applications
channel and dual-channel high-side-current LED
AEC-Q100 Qualified With the Following Results:
driver. With full protection and diagnostics, this family
Device Temperature Grade 1: –40°C to 125°C
of devices is dedicated for and ideally suited to
Ambient Operating Temperature
automotive
front
lighting.
The
base
of
each
independent driver is a peak-current-mode boost
Device HBM ESD Classification Level 2
controller. Each controller has two independent
Device CDM ESD Classification Level C4B
feedback loops, a current-feedback loop with a high-
Input Voltage: 4 V–40 V (45 V Abs. Max.)
side current-sensing shunt and a voltage-feedback
loop with an external resistor-divider network. The
Output Voltage: 4 V–75 V (80 V Abs. Max.)
controller delivers a constant output voltage or a
Fixed-Frequency Current-Mode Controller With
constant
output
current.
The
connected
load
Integrated Slope Compensation
determines whether the device regulates a constant
Two Regulation Loops, Constant-Current Output
output current (if the circuit reaches the current set-
and Constant-Voltage Output of Each Channel
point earlier than voltage set-point) or a constant
output voltage (if the circuit reaches the voltage set-
High-Side Current Sense:
point is reached first, for example, in an open-load
150-mV or 300-mV Sense Voltage (EEPROM
condition).
Option)
Each controller supports all typical topologies such as
±6-mV Offset (Achieving Approx. 4% or 2%
boost, boost-to-battery, SEPIC, or flyback.
LED Current Accuracy)
Uses of the high-side PMOS FET driver are for PWM
Output Voltage Sense, Internal Voltage
dimming of the LED string and for cutoff in case of an
Reference: 2.2 V ±5%
external short circuit to GND to protect the circuit.
Integrated Low-Side NMOS-FET Driver: Peak
Gate-Drive Current Typ. 0.7 A
Device Information(1)
Frequency Synchronization
SENSE-VOLTAGE
PART NUMBER
CHANNELS
RANGE
Both PWM Dimming and Analog Dimming
TPS92601-Q1
15 mV–150 mV
1
Diagnostic:
TPS92601A-Q1(2)
30 mV–300 mV
1
High-Side Current (LED Current) Available as
TPS92602-Q1
15 mV–150 mV
2
Analog Output
TPS92602A-Q1(2)
30 mV–300 mV
2
Open-LED and Short-to-GND Detection
(1) For all available packages, see the orderable addendum at
Shorted Output Protection
the end of the datasheet.
Internal Under- and Overvoltage Lockout
(2) Device is available as a preview only.
2 Applications
Automotive Headlight LED Driver
High-Brightness LED Applications
4 Typical Schematic
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. UNLESS OTHERWISE NOTED, this document contains PRODUCTION
DATA.


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