LM5041A_TI 具有降压级禁用选项的级联 PWM 控制器

LM5041A的基本参数

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：具有降压级禁用选项的级联 PWM 控制器
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LM5041A的产品详情：

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.

LM5041A的优势和特性：

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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LM5041A的参数（英文）：

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具体的完整产品型号参数及价格（美元）：

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+）

LM5041A的评估套件：

LM5041A的电路图解：

LM5041A的评估套件：