The LM5041A PWM controller contains all of the features necessary to implement either current-fed or voltage-fed push-pull or bridge power converters. These “Cascaded” topologies are well suited for multiple output and higher power applications. The LM5041A’s four control outputs include: the buck stage controls (HD and LD) and the push-pull control outputs (PUSH and PULL). Push-pull outputs are driven at 50% nominal duty cycle at one half of the switching frequency of the buck stage and can be configured for either an overlap time (for current-fed applications) or a both-off time (for voltage-fed applications). Push-pull stage MOSFETs can be driven directly from the internal gate drivers while the buck stage requires an external driver such as the LM5102. The LM5041A includes a high-voltage start-up regulator that operates over a wide input range of 15V to 100V. The PWM controller is designed for high-speed capability including an oscillator frequency range up to 1 MHz and total propagation delays of less than 100ns. Additional features include: line Under-Voltage Lockout (UVLO), soft-start, an error amplifier, precision voltage reference, and thermal shutdown.

The two differences between the LM5041 and the LM5041A are: No second level current limit in the 'A' version No softstart (SS) shutdown comparator in the 'A' version.

• Internal Start-up Bias Regulator
• Programmable Line Under-Voltage Lockout (UVLO) with Adjustable Hysteresis
• Current Mode Control
• Internal Error Amplifier with Reference
• Cycle-by-cycle Over-Current Protection
• Leading Edge Blanking
• Programmable Push-Pull Overlap or Dead Time
• Internal 1.5A Push-Pull Gate Drivers
• Programmable Soft-Start
• Programmable Oscillator with Sync Capability
• Precision Reference
• Thermal Shutdown

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• Topology
• Push-Pull
• Duty cycle (Max) (%)
• 50
• Supply voltage (Max) (V)
• 15
• UVLO thresholds on/off (V)
• Programmable/2.5V
• Features
• Current Limiting, Programmable Soft Start, Synchronization Pin
• Operating temperature range (C)
• -40 to 125
• Rating
• Catalog
• Frequency (Max) (kHz)
• 1000
• Gate drive (Typ) (A)
• 1.5

LM5041A的完整型号有：LM5041AMTC/NOPB、LM5041AMTCX/NOPB、LM5041ASD/NOPB，以下是这些产品的关键参数及官网采购报价：

LM5041AMTC/NOPB，工作温度：-40 to 125，封装：TSSOP (PW)-16，包装数量MPQ：92个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：SN，TI官网LM5041AMTC/NOPB的批量USD价格：1.441（1000+）

LM5041AMTCX/NOPB，工作温度：-40 to 125，封装：TSSOP (PW)-16，包装数量MPQ：2500个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：SN，TI官网LM5041AMTCX/NOPB的批量USD价格：1.201（1000+）

LM5041ASD/NOPB，工作温度：-40 to 125，封装：WSON (NHQ)-16，包装数量MPQ：1000个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：SN，TI官网LM5041ASD/NOPB的批量USD价格：1.201（1000+）