LM51501-Q1 Series
Automotive 1.5-V to 42-V VIN, low IQ boost controller with 6V, 6.5V, 9.5V, 11.5V output options
Manufacturer: Texas Instruments
Link to Manufacturer Page: https://www.ti.com/
Catalog
Automotive 1.5-V to 42-V VIN, low IQ boost controller with 6V, 6.5V, 9.5V, 11.5V output options
| Part | Synchronous Rectifier | Grade | Output Type | Output Configuration | Voltage - Supply (Vcc/Vdd) [Min] | Voltage - Supply (Vcc/Vdd) [Max] | Control Features | Frequency - Switching [Max] | Frequency - Switching [Min] | Duty Cycle (Max) [Max] | Operating Temperature [Max] | Operating Temperature [Min] | Qualification | Function | Output Phases | Clock Sync | Number of Outputs | Mounting Type | Topology | Supplier Device Package | Package / Case |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments LM51501QWRUMTQ1 | Automotive | Transistor Driver | Positive | 1.5 V | 42 V | Current Limit, Enable, Frequency Control, Sync | 2.3 MHz | 220 kHz | 93 % | 125 ¯C | -40 °C | AEC-Q100 | Step-Up | 1 | 1 | Surface Mount | Boost | 16-WQFN (4x4) | 16-WQFN Exposed Pad | ||
Texas Instruments LM51501QRUMTQ1 | Automotive | Transistor Driver | Positive | 1.5 V | 42 V | Current Limit, Enable, Frequency Control, Sync | 2.3 MHz | 220 kHz | 93 % | 150 C | -40 °C | AEC-Q100 | Step-Up | 1 | 1 | Surface Mount | Boost | 16-WQFN (4x4) | 16-WQFN Exposed Pad | ||
Texas Instruments LM51501QRUMRQ1 | Automotive | Transistor Driver | Positive | 1.5 V | 42 V | Current Limit, Enable, Frequency Control, Sync | 2.3 MHz | 220 kHz | 93 % | 150 C | -40 °C | AEC-Q100 | Step-Up | 1 | 1 | Surface Mount | Boost | 16-WQFN (4x4) | 16-WQFN Exposed Pad | ||
Texas Instruments LM51501QURUMRQ1 | Automotive | Transistor Driver | Positive | 1.5 V | 42 V | Current Limit, Enable, Frequency Control, Sync | 2.3 MHz | 220 kHz | 93 % | 150 C | -40 °C | AEC-Q100 | Step-Up | 1 | 1 | Surface Mount | Boost | 16-WQFN (4x4) | 16-WQFN Exposed Pad |
Key Features
• AEC-Q100 qualified:Device temperature grade 1: –40°C to +125°C ambient operating temperature rangeDevice HBM ESD classification level 2Device CDM ESD classification level C4BFunctional Safety-CapableDocumentation available to aid functional safety system designWide VIN input range from 1.5 V to 42 V when VOUT ≥ 5 V (65-V absolute maximum)Low shutdown current (IQ≤ 5 µA)Low standby current (IQ≤ 15 µA)Four programmable output voltage options and two selectable configurations6.0 V, 6.5 V, 9.5 V, or 11.5 VStart-stop or e-call configurationsAdjustable switching frequency from 220 kHz to 2.3 MHzAutomatic wake-up and standby mode transitionOptional clock synchronizationBoost status indicator1.5-A peak MOSFET gate driverAdjustable cycle-by-cycle current limitThermal shutdown16-pin WQFN with wettable and non-wettable flank optionsCreate a custom design using the LM51501-Q1 with theWEBENCH Power DesignerAEC-Q100 qualified:Device temperature grade 1: –40°C to +125°C ambient operating temperature rangeDevice HBM ESD classification level 2Device CDM ESD classification level C4BFunctional Safety-CapableDocumentation available to aid functional safety system designWide VIN input range from 1.5 V to 42 V when VOUT ≥ 5 V (65-V absolute maximum)Low shutdown current (IQ≤ 5 µA)Low standby current (IQ≤ 15 µA)Four programmable output voltage options and two selectable configurations6.0 V, 6.5 V, 9.5 V, or 11.5 VStart-stop or e-call configurationsAdjustable switching frequency from 220 kHz to 2.3 MHzAutomatic wake-up and standby mode transitionOptional clock synchronizationBoost status indicator1.5-A peak MOSFET gate driverAdjustable cycle-by-cycle current limitThermal shutdown16-pin WQFN with wettable and non-wettable flank optionsCreate a custom design using the LM51501-Q1 with theWEBENCH Power Designer
Description
AI
The LM51501-Q1 is a wide input range automatic boost controller. The device can be used to maintain a stable output voltage during automotive cranking from a vehicle battery or from a backup battery.
The LM51501-Q1 switching frequency is programmed by a resistor from 220 kHz to 2.3 MHz. Fast switching (≥ 2.2 MHz) minimizes AM band interference and allows for a small solution size and fast transient response.
The LM51501-Q1 operates in low IQstandby mode when the input or output voltage is above the preset standby thresholds and automatically wakes up when the output voltage drops below the preset wake-up threshold.
The device transitions in and out of low IQstandby mode to extend battery life at light load. A single resistor programs the target output regulation voltage as well as the configuration. Additional features include low shutdown current, boost status indicator, adjustable cycle-by-cycle current limit, and thermal shutdown. A status indicator can be used to control a circuit to bypass the diode when the part is not boosting in order to reduce power dissipation. In E-call mode, the device can be used to control a disconnect switch to protect the backup-battery.
The LM51501-Q1 is a wide input range automatic boost controller. The device can be used to maintain a stable output voltage during automotive cranking from a vehicle battery or from a backup battery.
The LM51501-Q1 switching frequency is programmed by a resistor from 220 kHz to 2.3 MHz. Fast switching (≥ 2.2 MHz) minimizes AM band interference and allows for a small solution size and fast transient response.
The LM51501-Q1 operates in low IQstandby mode when the input or output voltage is above the preset standby thresholds and automatically wakes up when the output voltage drops below the preset wake-up threshold.
The device transitions in and out of low IQstandby mode to extend battery life at light load. A single resistor programs the target output regulation voltage as well as the configuration. Additional features include low shutdown current, boost status indicator, adjustable cycle-by-cycle current limit, and thermal shutdown. A status indicator can be used to control a circuit to bypass the diode when the part is not boosting in order to reduce power dissipation. In E-call mode, the device can be used to control a disconnect switch to protect the backup-battery.