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TPS92512DGQR Datasheet(PDF) 1 Page - Texas Instruments |
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TPS92512DGQR Datasheet(HTML) 1 Page - Texas Instruments |
1 / 30 page Input Voltage (V) 25 30 35 40 45 50 55 60 85 87.5 90 92.5 95 97.5 100 D001 2 4 3 8 10 VIN TPS92512 PDIM UVLO COMP PH 5 7 RT/CLK ISENSE 6 IADJ 1 BOOT 9 GND Pad 0.18V ± 1.8V Product Folder Sample & Buy Technical Documents Tools & Software Support & Community TPS92512, TPS92512HV SLVSCT1B – FEBRUARY 2015 – REVISED APRIL 2015 TPS92512 2.5A Buck LED Driver with Integrated Analog Current Adjust 1 Features 3 Description The TPS92512/HV are 2.5A step-down (buck) current 1 • Integrated 200-m Ω High-Side MOSFET regulators with an integrated MOSFET to drive high • 4.5-V to 42-V Input Voltage Range current LEDs. Available with 42 V and 60 V (HV) (4.5 V to 60 V for the TPS92512HV) input ranges, these LED drivers operate at a user • 0 V to 300 mV Adjustable Voltage Reference selected fixed-frequency with peak-current mode control and deliver excellent line and load regulation. • ±5% LED Current Accuracy • 100-kHz to 2-MHz Switching Frequency Range The TPS92512/HV LED drivers feature separate inputs for analog and pulse width modulation (PWM) • Dedicated PWM Dimming Input dimming for no compromise brightness control • Adjustable Undervoltage-Lock-Out achieving contrast ratios of greater than 10:1 and • Overcurrent Protection greater than 100:1, respectively. The PWM input is compatible with low-voltage logic standards for easy • Overtemperature Protection interface to a broad range of microcontrollers. The • MSOP-10 Package with PowerPAD™ analog LED current setpoint is adjustable from 0 V to 300 mV using the IADJ input with an external 0 V to 2 Applications 1.8 V signal. • Street Lighting For multi-string applications using two or more • Emergency/Exit Lighting TPS92512/HV LED drivers, the internal oscillator can be overdriven by an external clock ensuring all of the • General Industrial and Commercial Illumination converters operate at a common frequency thereby • Retail Lighting reducing the potential for beat frequencies and • Appliance Lighting simplifying system EMI filtering. An adjustable input under-voltage lockout (UVLO) with hysteresis • Transportation Lighting provides flexibility in setting start/stop voltages based • Channel Letters upon supply voltage conditions. • Light Bars The TPS92512 includes cycle-by-cycle overcurrent protection and thermal shutdown protection. It is available in a 10-pin HVSSOP PowerPAD™ package. Device Information(1) PART NUMBER PACKAGE BODY SIZE (NOM) TPS92512 HVSSOP (10) 5.00 mm x 3.00 mm TPS92512HV (1) For all available packages, see the orderable addendum at the end of the data sheet. 4 Simplified Schematics Efficiency vs Input Voltage 7 White LEDs at 1.5A (VOUT = 23 V) 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. PRODUCTION DATA. |
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