Texas Instruments LM5150-Q1 Low IQ Boost Controller
Texas Instruments LM5150-Q1 Low IQ Boost Controller is a wide input range automatic boost controller. The device is suitable for use as a pre-boost converter which maintains the output voltage from a vehicle battery during automotive cranking or a backup battery during the loss of a vehicle battery. A resistor programs the LM5150-Q1 switching frequency from 220kHz to 2.3MHz. Fast switching (≥ 2.2MHz) minimizes AM band interference and allows for a small solution size and fast transient response.
Features
- AEC-Q100 qualified
- Device Temperature Grade 1 (–40°C to +125°C ambient operating temperature range)
- Device HBM ESD Classification Level 2
- Device CDM ESD Classification Level C4B
- Wide VIN input range from 1.5V to 42V when VOUT ≥ 5V (65V absolute maximum)
- Low shutdown current (IQ ≤ 5µA)
- Low standby current (IQ ≤ 15µA)
- Four programmable output voltage options and two selectable configurations
- 6.8V, 7.5V, 8.5V, or 10.5V
- Start-stop or E-Call configurations
- Adjustable switching frequency from 220kHz to 2.3MHz
- Automatic wake-up and standby mode transition
- Optional clock synchronization
- Boost status indicator
- 1.5A peak MOSFET gate driver
- An adjustable cycle-by-cycle current limit
- Thermal shutdown
- 16-pin WQFN with wettable flanks
Applications
- Automotive start-stop system
- Automotive emergency call system
- Battery-powered boost converters
Typical Application Circuit
發佈日期: 2018-04-13
| 更新日期: 2022-12-01