Integrated power controller offers stability benefits for automotive applications
The start/stop function in many new car models increases fuel economy, but also leads to significant drops in the supply voltage when restarting the engine. The TPS43330-Q1 family remains fully functional during such voltage drops and ensures that applications continue to work without interruption or performance reduction. The devices’ ultra-low quiescent current makes the use of a separate standby voltage supply unnecessary, thus reducing system cost and complexity.
The TPS43330-Q1 family features a wide input voltage range of 2 V to 40 V and transients up to 60 V ensure continued operation, even under severe battery voltage conditions. The device has a quiescent current as low as 35 uA and lower shutdown current of 5 uA reduces the overall application power consumption from the battery in standby operation, extending battery lifetime and eliminating the need for a standby voltage regulator. Spread spectrum frequency modulation reduces conducted electromagnetic interference and allows for simpler, lower-cost filters.
The device features individual enable and power good signals for both supply rails allow the customer flexible power sequencing based on specific application needs. Integration of multiple voltage rails and voltage supervisors reduces board space, design complexity and system cost compared to a discrete solution. A dedicated high-side FET driver enables overall efficiency improvement by bypassing the external reverse-battery protection diode with an external PMOS FET.
TI offers a variety of tools and support to speed design with the Power Stage Designer and Automotive Power reference design for PMP7001.1 and PMP7031. Evaluation modules are also available for the TPS43332-Q1, TPS43335-Q1, and TPS43336-Q1 devices.
In addition to the TPS43330-Q1 DC/DC controller, TI offers a large portfolio of power management ICs aimed at automobile applications, including step-down converters like the TPS57160-Q1 or PIMCs like the TPS65023-Q1. The LM25118Q buck-boost controller and TPIC74101-Q1 buck-boost converter help maintain stable output voltage over a wide supply voltage range.
Availability and Pricing
Samples of the TPS43330-Q1 and TPS43332-Q1 are available now in an HTSSOP-38 (DAP) package. Suggested retail pricing for the TPS43330-Q1 family ranges from $2.85 to $3.10 in 1000-unit quantities.
More information about the TPS43330-Q1 and TPS43332-Q1 power controller at
- A new measure for wireless power transfer to support highly efficient links
- SMIC to report Tunnel-FET extension to CMOS
- Can candle soot help power Electric Vehicles?
- Solar bypass semiconductor device protects PV from lighting
- Integrated 7.8 mΩ power switch handles 9A, with reverse-blocking
- Tektronix/Keithley adds high-current/power bench PSU variants
- Bulk capacitance on high-current PCB rails safely controlled with 30V MOSFET
- LLC controller claims best-in-class efficiency for isolated DC-DC converters
- USB power supply is designed for automotive environments
- Low-power battery management for wearables/IoT
- Six-supply sequencer with NV configuration & fault logging
- Fastest 600-V gate driver steps up power density
- Cathode material discovery boosts the drive for sodium-ion batteries
- Online power supply configurator supplants custom solutions
- Keeping robots on the move - smartening up solar harvesting
- Will DIY spray-on solar cells be a reality soon?
- Porsche reveals prototype battery-driven sports car
- Transparent coating cools solar cells while boosting efficiency
- More-than-Moore will lead, argues GloFo's Wijburg
- Elon Musk targets high-volume solar panel dominance
- Dialog to acquire Atmel for USD4.6bn in IoT push
- Super-battery charges mobile devices in 15 seconds or less
- Hybrid solar panel roof helps slash energy bills
- Are mushrooms the answer to lithium-ion battery degradation?
- World efficiency record claimed for both sides-contacted solar cells
- DC-DC Conversion Handbook on GaN
- GaN soon on 8-inch silicon wafers, hopes MACOM
- Heat helps rechargeable batteries extend lifetimes
- Next-Generation batteries - Can all-silicon anodes be commercially viable?
- Report: Cypress preps bid to snatch Atmel from Dialog
- Determine Balancing Current for the LTC3305 Lead-Acid Battery Balancer
- Testing PSRR with High-Frequency Ripple
- Why Making the Move from a Variable Transformer to a VariPLUS is the Right Decision
- A SEPIC Fed Buck Converter
- Minimizing the Impact of Source Resistance on High-Voltage DC to DC Converters
- Dual Phase Buck Controller Drives High Density 1.2V/60A Supply with Submilliohm DCR Sensing
- Battery Management System Tutorial