TPS92642QPWPRQ1
ActiveAUTOMOTIVE SYNCHRONOUS BUCK INFRARED LED DRIVER
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TPS92642QPWPRQ1
ActiveAUTOMOTIVE SYNCHRONOUS BUCK INFRARED LED DRIVER
Technical Specifications
Parameters and characteristics for this part
| Specification | TPS92642QPWPRQ1 |
|---|---|
| Applications | General Purpose |
| Current - Output / Channel [custom] | 5 A |
| Dimming | Analog, PWM |
| Frequency [Max] | 2.2 MHz |
| Frequency [Min] | 100 kHz |
| Grade | Automotive |
| Internal Switch(s) | True |
| Mounting Type | Surface Mount |
| Number of Outputs | 1 |
| Operating Temperature [Max] | 125 °C |
| Operating Temperature [Min] | -40 °C |
| Package / Case | 16-PowerTSSOP |
| Package / Case | 0.173 in, 4.4 mm Width |
| Qualification | AEC-Q100 |
| Supplier Device Package | 16-HTSSOP |
| Topology | Step-Down (Buck) |
| Type | DC DC Regulator |
| Voltage - Supply (Max) [Max] | 36 V |
| Voltage - Supply (Min) [Min] | 5.5 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Cut Tape (CT) | 1 | $ 5.35 | |
| 10 | $ 4.81 | |||
| 25 | $ 4.54 | |||
| 100 | $ 3.94 | |||
| 250 | $ 3.74 | |||
| 500 | $ 3.35 | |||
| 1000 | $ 2.83 | |||
| Digi-Reel® | 1 | $ 5.35 | ||
| 10 | $ 4.81 | |||
| 25 | $ 4.54 | |||
| 100 | $ 3.94 | |||
| 250 | $ 3.74 | |||
| 500 | $ 3.35 | |||
| 1000 | $ 2.83 | |||
| Tape & Reel (TR) | 2000 | $ 2.69 | ||
| Texas Instruments | LARGE T&R | 1 | $ 3.68 | |
| 100 | $ 3.00 | |||
| 250 | $ 2.36 | |||
| 1000 | $ 2.00 | |||
Description
General part information
TPS92642-Q1 Series
The TPS92642-Q1 is a monolithic, synchronous Buck LED driver with a wide 5.5-V to 36-V operating input voltage range and 40-V tolerance that supports load dump for duration of 400 ms. The TPS92642-Q1 implements an adaptive on-time average current mode control based on inductor valley current detection. The adaptive on-time control provides near constant switching frequency that can be set between 100 kHz and 2.2 MHz. Inductor current sensing and closed-loop feedback enables better than ±4% accuracy over wide input, output and ambient temperature.
The high-performance infrared LED driver can independently modulate LED current using both analog or PWM dimming techniques. Linear analog dimming range with over 15:1 range is obtained by setting the IADJ voltage. PWM dimming of LED current is achieved by directly modulating the UDIM input pin with desired duty cycle. The device incorporates an internal pulse monitoring circuit that limits the maximum pulse duty cycle.
The TPS92642-Q1 incorporates advanced diagnostic and fault protection featuring: cycle-by-cycle switch current limit, bootstrap undervoltage, LED open, LED short and thermal shutdown.
Documents
Technical documentation and resources