LM5155-Q1

現行

2.2MHz 寬 VIN、1.5A MOSFET 驅動器、非同步升壓控制器、符合 AEC-Q100 認證

立即訂購

產品規格表

document-pdfAcrobat LM5155x-Q1 2.2-MHz Wide Input Nonsynchronous Boost, SEPIC, Flyback Controller datasheet (Rev. F) (英文) PDF | HTML

LM5155-Q1

現行

產品規格表

立即訂購

產品詳細資料

Rating

Automotive

Topology

Boost, Flyback, SEPIC

Vin (max) (V)

45

Vin (min) (V)

1.5

Vout (max) (V)

300

Vout (min) (V)

1.5

Control mode

current mode

Features

Adjustable current limit, Frequency synchronization, Nonsynchronous rectification, Power good, UVLO adjustable

Duty cycle (max) (%)

93

Iq (typ) (A)

0.00045

TI functional safety category

Functional Safety-Capable

Operating temperature range (°C)

-40 to 150

Rating

Automotive

Topology

Boost, Flyback, SEPIC

Vin (max) (V)

45

Vin (min) (V)

1.5

Vout (max) (V)

300

Vout (min) (V)

1.5

Control mode

current mode

Features

Adjustable current limit, Frequency synchronization, Nonsynchronous rectification, Power good, UVLO adjustable

Duty cycle (max) (%)

93

Iq (typ) (A)

0.00045

TI functional safety category

Functional Safety-Capable

Operating temperature range (°C)

-40 to 150

WSON (DSS)

12

6 mm² (3 mm × 2 mm)

AEC-Q100 qualified for automotive applications
- Temperature grade 1: –40°C to +125°C T A
Functional Safety-Capable
- Documentation available to aid functional safety system design
Wide input operating range for car and portable battery applications
- 3.5-V to 45-V Operating range
- 2.97-V to 16-V When BIAS = VCC
- Minimum boost supply voltage 1.5 V when BIAS ≥ 3.5 V
- Input transient protection up to 50 V
Minimized battery drain
- Low shutdown current (I Q ≤ 2.6 µA)
- Low operating current (I Q ≤ 480 µA)
Small solution size and low cost
- Maximum switching frequency of 2.2 MHz
- 12-Pin WSON package (3 mm × 2 mm) with wettable flanks and non-wettable flank option
- Integrated error amplifier allows primary-side regulation without optocoupler (flyback)
- Minimized undershoot during cranking (start-stop application)
Higher efficiency with low-power dissipation
- 100-mV ±7% Low current limit threshold
- Strong 1.5-A peak standard MOSFET driver
- Supports external VCC supply
Avoid AM band interference and crosstalk
- Optional clock synchronization
- Dynamically programmable switching frequency from 100 kHz to 2.2 MHz
Integrated protection features
- Constant peak current limiting over input voltage
- Optional hiccup mode short-circuit protection (see the Device Comparison Table)
- Programmable line UVLO
- OVP protection
- Thermal shutdown
Accurate ±1% accuracy feedback reference
Programmable extra slope compensation
Adjustable soft start
PGOOD indicator
Create a custom design using the LM5155x with the WEBENCH power designer

AEC-Q100 qualified for automotive applications
- Temperature grade 1: –40°C to +125°C T A
Functional Safety-Capable
- Documentation available to aid functional safety system design
Wide input operating range for car and portable battery applications
- 3.5-V to 45-V Operating range
- 2.97-V to 16-V When BIAS = VCC
- Minimum boost supply voltage 1.5 V when BIAS ≥ 3.5 V
- Input transient protection up to 50 V
Minimized battery drain
- Low shutdown current (I Q ≤ 2.6 µA)
- Low operating current (I Q ≤ 480 µA)
Small solution size and low cost
- Maximum switching frequency of 2.2 MHz
- 12-Pin WSON package (3 mm × 2 mm) with wettable flanks and non-wettable flank option
- Integrated error amplifier allows primary-side regulation without optocoupler (flyback)
- Minimized undershoot during cranking (start-stop application)
Higher efficiency with low-power dissipation
- 100-mV ±7% Low current limit threshold
- Strong 1.5-A peak standard MOSFET driver
- Supports external VCC supply
Avoid AM band interference and crosstalk
- Optional clock synchronization
- Dynamically programmable switching frequency from 100 kHz to 2.2 MHz
Integrated protection features
- Constant peak current limiting over input voltage
- Optional hiccup mode short-circuit protection (see the Device Comparison Table)
- Programmable line UVLO
- OVP protection
- Thermal shutdown
Accurate ±1% accuracy feedback reference
Programmable extra slope compensation
Adjustable soft start
PGOOD indicator
Create a custom design using the LM5155x with the WEBENCH power designer

The LM5155x-Q1 (LM5155-Q1 and LM51551-Q1) is a wide input range, non-synchronous boost controller that uses peak current mode control. The device can be used in boost, SEPIC, and flyback topologies.

The LM5155x-Q1 can start up from a 1-cell battery with a minimum of 2.97 V if the BIAS pin is connected to the VCC pin. It can operate with the input supply voltage as low as 1.5 V if the BIAS pin is greater than 3.5 V.

The LM5155x-Q1 (LM5155-Q1 and LM51551-Q1) is a wide input range, non-synchronous boost controller that uses peak current mode control. The device can be used in boost, SEPIC, and flyback topologies.

The LM5155x-Q1 can start up from a 1-cell battery with a minimum of 2.97 V if the BIAS pin is connected to the VCC pin. It can operate with the input supply voltage as low as 1.5 V if the BIAS pin is greater than 3.5 V.

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LM3481-Q1

現行

適用升壓、SEPIC 及返馳且符合 AEC-Q100 標準的 2.97-V 至 48-V 高效控制器 LM3481-Q1 has a lower start-up of 2.97-V and supports standard FETs

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*	資料表	LM5155x-Q1 2.2-MHz Wide Input Nonsynchronous Boost, SEPIC, Flyback Controller datasheet (Rev. F)	PDF \| HTML	2023/5/3
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