TLD5098EL Infineon Technologies, TLD5098EL Datasheet - Page 3

• Manufacturer Part Number: TLD5098EL
• Description: IC DC-DC CTRLR BUCK BOOST 14SSOP
• Manufacturer: Infineon Technologies

Specifications of TLD5098EL

• Constant Current: Yes
• Constant Voltage: Yes
• Internal Driver: No
• Type - Primary: Automotive
• Mounting Type: Surface Mount
• Topology: PWM, SEPIC, Step-Down (Buck), Step-Up (Boost)
• Number Of Outputs: 1
• Frequency: 100kHz ~ 500kHz
• Voltage - Supply: 4.5 V ~ 45 V
• Voltage - Output: 4.5 V ~ 5.5 V
• Package / Case: 14-LSSOP (0.150", 3.95mm Width) Exposed Pad
• Packages: PG-SSOP-14
• Vs (min): 4.75 V
• Vs (max): 45.0 V
• Vq (max): -
• Iq (max): -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Operating Temperature: -
• Lead Free Status / Rohs Status: Details

DC/DC Boost, Buck-Boost, SEPIC controller
TLD5098EL
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Features
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Description
The TLD5098EL is a LED boost controller with built in protection features. The main function of this device is to
regulate a constant LED current. The constant current regulation is especially beneficial for LED color accuracy
and longer lifetime. The controller concept of the TLD5098EL allows multiple configurations such as Boost,
Buck/Boost and SEPIC by simply adjusting the external components. The TLD5098EL offers the most flexible
dimming options. Dimming can be achieved with analog or PWM input.The switching frequency is adjustable in
the range of 100 kHz to 500 kHz and can be synchronized to an external clock source. The TLD5098EL features
an enable function reducing the shut-down current consumption to I
scheme of this device provides a stable regulation loop maintained by small external compensation components.
The integrated soft start feature limits the current peak as well as voltage overshoot at start-up. This IC is suited
for use in the harsh automotive environments and provides output overvoltage protection, device overtemperature
shutdown and short circuit to GND protection.
Applications
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Type
TLD5098EL
Datasheet
Wide Input Voltage Range from 4.5 V to 45 V
Constant Current or Constant Voltage Regulation
Drives LEDs in Boost (B2G), Buck-Boost (B2B) and SEPIC Topology
Very Low Shutdown Current: I
Flexible Switching Frequency Range, 100 kHz to 500 kHz
Synchronization with external clock source
PWM Dimming
Analog Dimming feature to adjust average LED current
Internal 5 V Low Drop Out Voltage Regulator
Open Circuit Detection
Short to GND Protection
Output Overvoltage Protection
Internal Soft Start
Over Temperature Shutdown
Wide LED current range via simple adaptation of external components
300mV High Side Current Sense to ensure highest flexibility and LED current accuracy
Available in a small thermally enhanced PG-SSOP-14 package
Automotive AEC Qualified
Green Product (RoHS) Compliant
Automotive Exterior and Interior Lighting
Overview
q_OFF
Package
PG-SSOP-14
< 10 µA
3
q_OFF
< 10 µA. The current mode regulation
Marking
TLD5098
PG-SSOP-14
Rev. 1.0, 2010-10-13
TLD5098EL