- 制造厂商:TI
- 产品类别:电源管理
- 技术类目:交流/直流和隔离式直流/直流开关稳压器 - PWM 控制器
- 功能描述:具有断续模式的级联 PWM 控制器
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The LM5041 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 LM5041’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 a specified overlap time (for current-fed applications) or a specified 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 LM5041 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.
- Internal Start-up Bias Regulator
- Programmable Line Under-Voltage Lockout (UVLO) with Adjustable Hysteresis
- Current Mode Control
- Internal Error Amplifier with Reference
- Dual Mode 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
- TSSOP-16
- WSON-16 (5x5 mm) Thermally Enhanced
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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
LM5041的完整型号有:LM5041MTC/NOPB、LM5041MTCX/NOPB、LM5041SD/NOPB、LM5041SDX/NOPB、LM5041SD,以下是这些产品的关键参数及官网采购报价:
LM5041MTC/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LM5041MTC/NOPB的批量USD价格:1.441(1000+)
LM5041MTCX/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LM5041MTCX/NOPB的批量USD价格:1.201(1000+)
LM5041SD/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LM5041SD/NOPB的批量USD价格:1.441(1000+)
LM5041SDX/NOPB,工作温度:-40 to 125,封装:WSON (NHQ)-16,包装数量MPQ:4500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LM5041SDX/NOPB的批量USD价格:1.201(1000+)
LM5041SD,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:SNPB,TI官网LM5041SD的批量USD价格:1.862(1000+)
LM5041EVAL — 级联 PWM 控制器
LM5041 Cascaded PWM Controller