LM5156-Q1 Series
2.2-MHz wide VIN nonsynchronous boost, flyback, & SEPIC controller with dual random spread spectrum
Manufacturer: Texas Instruments
Catalog
2.2-MHz wide VIN nonsynchronous boost, flyback, & SEPIC controller with dual random spread spectrum
| Part | Qualification | Voltage - Supply (Vcc/Vdd) [Max] | Voltage - Supply (Vcc/Vdd) [Min] | Package / Case | Synchronous Rectifier | Control Features | Supplier Device Package | Operating Temperature [Max] | Operating Temperature [Min] | Duty Cycle (Max) [Max] | Frequency - Switching [Min] | Frequency - Switching [Max] | Grade | Function | Topology | Mounting Type | Output Configuration | Number of Outputs | Output Type | Output Phases | Clock Sync |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments LM5156QDSSRQ1 | AEC-Q100 | 60 V | 3.5 V | 12-WFDFN Exposed Pad | Current Limit, Enable, Frequency Control, Power Good, Soft Start | 12-WSON (3x2) | 150 °C | -40 °C | 93 % | 100 kHz | 2.2 MHz | Automotive | Step-Up, Step-Up/Step-Down | Boost, Flyback, SEPIC | Surface Mount | Positive | 1 | Transistor Driver | 1 |
Key Features
• AEC-Q100 qualified for automotive applicationsTemperature grade 1: –40°C to +125°C TAFunctional Safety-CapableDocumentation available to aid functional safety system designSuited for wide input operating range car battery applications3.5-V to 60-V Operating range (65-V abs max)2.97-V to 16-V When BIAS = VCCMinimum boost supply voltage 1.5 V when BIAS ≥ 3.5 VInput transient protection up to 65 VMinimized battery drainLow shutdown current (IQ≤ 2.6 µA)Low operating current (IQ≤ 490 µA)Small solution size and low costMaximum switching frequency of 2.2 MHz12-Pin WSON package (3 mm × 2 mm) with wettable flanksIntegrated error amplifier allows primary-side regulation without optocoupler (flyback)Minimized undershoot during cranking (start-stop application)EMI mitigationSelectable dual random spread spectrumLead-less packageHigher efficiency with low-power dissipation100-mV ±7% accurate current limit thresholdStrong 1.5-A peak standard MOSFET driverSupports external VCC supplyAvoid AM band interference and crosstalkOptional clock synchronizationDynamically programmable switching frequency from 100 kHz to 2.2 MHzIntegrated protection featuresConstant peak current limiting over input voltageOptional hiccup mode overload protection (see theDevice Comparison Table)Programmable line UVLOOVP protectionThermal shutdownAccurate ±1% accuracy feedback referenceProgrammable extra slope compensationAdjustable soft startPGOOD indicatorCreate a custom design using the LM5156x-Q1 with theWEBENCH power designerAEC-Q100 qualified for automotive applicationsTemperature grade 1: –40°C to +125°C TAFunctional Safety-CapableDocumentation available to aid functional safety system designSuited for wide input operating range car battery applications3.5-V to 60-V Operating range (65-V abs max)2.97-V to 16-V When BIAS = VCCMinimum boost supply voltage 1.5 V when BIAS ≥ 3.5 VInput transient protection up to 65 VMinimized battery drainLow shutdown current (IQ≤ 2.6 µA)Low operating current (IQ≤ 490 µA)Small solution size and low costMaximum switching frequency of 2.2 MHz12-Pin WSON package (3 mm × 2 mm) with wettable flanksIntegrated error amplifier allows primary-side regulation without optocoupler (flyback)Minimized undershoot during cranking (start-stop application)EMI mitigationSelectable dual random spread spectrumLead-less packageHigher efficiency with low-power dissipation100-mV ±7% accurate current limit thresholdStrong 1.5-A peak standard MOSFET driverSupports external VCC supplyAvoid AM band interference and crosstalkOptional clock synchronizationDynamically programmable switching frequency from 100 kHz to 2.2 MHzIntegrated protection featuresConstant peak current limiting over input voltageOptional hiccup mode overload protection (see theDevice Comparison Table)Programmable line UVLOOVP protectionThermal shutdownAccurate ±1% accuracy feedback referenceProgrammable extra slope compensationAdjustable soft startPGOOD indicatorCreate a custom design using the LM5156x-Q1 with theWEBENCH power designer
Description
AI
The LM5156x-Q1 (LM5156-Q1 and LM51561-Q1) device 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 LM5156x-Q1 device 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 LM5156x-Q1 (LM5156-Q1 and LM51561-Q1) device 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 LM5156x-Q1 device 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.