TPS92381PWPR TI
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TPS92381PWPR TI
Features • 3-, 4-Channel 120-mA current sinks – High dimming ratio of 10 000:1 at 100 Hz – Current matching 1% (typical) – LED String current up to 120 mA per channel – Outputs can be combined externally for higher current per string • Integrated boost and SEPIC converter for LED string power – Input voltage operating range 4.5 V to 40 V – Output voltage up to 45 V – Integrated 3.3-A switch FET – Switching frequency 300 kHz to 2.2 MHz – Switching synchronization input – Spread spectrum for lower EMI • Fault detection and protection – Fault output – Input voltage OVP, UVLO and OCP – Boost block SW OVP and output OVP – LED open and short fault detection – Thermal shutdow
Features • 3-, 4-Channel 120-mA current sinks – High dimming ratio of 10 000:1 at 100 Hz – Current matching 1% (typical) – LED String current up to 120 mA per channel – Outputs can be combined externally for higher current per string • Integrated boost and SEPIC converter for LED string power – Input voltage operating range 4.5 V to 40 V – Output voltage up to 45 V – Integrated 3.3-A switch FET – Switching frequency 300 kHz to 2.2 MHz – Switching synchronization input – Spread spectrum for lower EMI • Fault detection and protection – Fault output – Input voltage OVP, UVLO and OCP – Boost block SW OVP and output OVP – LED open and short fault detection – Thermal shutdow
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