Infineon TLD5097EP

It is designed to support fixed current and fixed voltage configurations in multiple topologies such as Boost, Buck, Buck-Boost, SEPIC and Flyback by simply adjusting the external components. The TLD5097EP drives a low side n-channel power MOSFET from an internal 5 V linear regulator. The switching frequency is adjustable in the range of 100 kHz to 500 kHz and can also be synchronized to an external clock source. The TLD5097EP can be flexibly dimmed by means of analog and PWM dimming; an enable function reduces the shut-down current consumption to I₀₀FF < 10 μA. The current mode control scheme of this device provides a stable regulation loop maintained by small external compensation components. Additionally an 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.

• Fixed current or fixed voltage configuration in Boost, Buck, Buck-Boost, SEPIC and Flyback Topology
• Drives low side external n-channel switching MOSFET from internal 5 V voltage regulator
• Flexible switching frequency range from 100 kHz to 500 kHz, synchronization with external clock source
• Wide input voltage range from 4.5 V to 45 V
• Enable & PWM function with very low shutdown current: I₀₀FF < 10 μA
• Analog dimming and PWM dimming feature to adjust average LED current
• Low active status output for fault communication
• Integrated protection and diagnostic functions
• Internal soft start
• 300 mV high-side current sense
• Available in a small thermally enhanced 14-pin PG-TSDSO-14 package, green product (RoHS) compliant

• Automotive exterior and interior lighting
• General illumination
• General purpose current/voltage controlled DC/DC driver