LM5030MMX/NOPB
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Texas Instruments LM5030MMX/NOPB

Manufacturer No:
LM5030MMX/NOPB
Manufacturer:
Texas Instruments
Package:
Tape & Reel (TR)
Description:
IC REG CTRLR MULT TOP 10MSOP
Delivery:
Payment:
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Product Introduction

Overview

The LM5030MMX/NOPB is a high-voltage Push-Pull Current Mode PWM Controller manufactured by Texas Instruments. This device is designed to implement push-pull and bridge topologies using current-mode control in a compact 10-pin package. It features an internal high-voltage start-up regulator, error amplifier, precision reference, dual mode current limit, slope compensation, softstart, and thermal shutdown. The LM5030 is suitable for DC-DC converter applications with input voltages up to 100 VDC and output power ranging from 15 W to 150 W.

Key Specifications

ParameterMinMaxUnit
VIN to GND (Survival)-0.3100V
VCC to GND (Survival)-0.316V
RT to GND (Survival)-0.35.5V
All other pins to GND (Survival)-0.37V
Operating Junction Temperature150°C
Storage Temperature-55150°C
Thermal Shutdown Temperature165°C
Output High Saturation Voltage (IOUT = 50 mA)0.250.75V
Output Low Saturation Voltage (IOUT = 100 mA)0.250.75V
Rise Time (Cload = 1 nF)16ns
Fall Time (Cload = 1 nF)16ns

Key Features

  • Internal High-Voltage Start-Up Regulator: Operates over a wide input range of 14 V to 100 V.
  • Single Resistor Oscillator Setting: Adjustable oscillator frequency.
  • Error Amplifier: High gain error amplifier with a noninverting reference tied to 1.25 V.
  • Precision Reference: Internal precision reference voltage.
  • Dual Mode Current Limit: Cycle-by-cycle current limit and second level current limit.
  • Slope Compensation: Internally buffered oscillator ramp added to the PWM comparator input.
  • Softstart: Gradual start-up to reduce stresses and surges.
  • Thermal Shutdown: Protects the IC from excessive junction temperature.
  • Direct Optocoupler Interface: Supports isolation devices.
  • 1.5-A Peak Gate Drivers: Alternating gate driver outputs.
  • Synchronizable: Can be synchronized to an external signal.

Applications

The LM5030 is designed for various DC-DC converter applications, including:

  • Telecommunication Power Converters
  • Industrial Power Converters
  • +42-V Automotive Systems

It is particularly suited for push-pull topology power converters with input voltages up to 100 VDC and output power in the range of 15 W to 150 W.

Q & A

  1. What is the maximum input voltage the LM5030 can handle?
    The LM5030 can handle input voltages up to 100 V.
  2. What is the purpose of the internal high-voltage start-up regulator?
    The internal high-voltage start-up regulator allows the device to start up directly from line voltages as high as 100 V and sources current into an external capacitor connected to the VCC pin.
  3. How does the slope compensation work in the LM5030?
    The slope compensation is achieved by buffering the internal oscillator ramp and summing it internally to the current sense (CS) signal to prevent subharmonic oscillation.
  4. What is the function of the softstart feature in the LM5030?
    The softstart feature allows the converter to gradually reach the initial steady state operating point, reducing start-up stresses and surges.
  5. How does the thermal shutdown protect the LM5030?
    The thermal shutdown protects the IC by disabling the output drivers and the bias regulator when the junction temperature exceeds 165°C.
  6. Can the LM5030 be synchronized to an external signal?
    Yes, the LM5030 can be synchronized to an external signal if the external frequency is higher than the internal frequency set by the RT resistor.
  7. What is the maximum output current capability of the gate drivers in the LM5030?
    The gate drivers can each sink 1.5-A peak.
  8. What are the typical applications of the LM5030?
    The LM5030 is typically used in telecommunication power converters, industrial power converters, and +42-V automotive systems.
  9. How does the error amplifier function in the LM5030?
    The error amplifier is a high gain amplifier with its noninverting reference tied to 1.25 V, and it can be disabled by connecting the VFB pin to ground.
  10. What is the recommended capacitance range for the VCC regulator in the LM5030?
    The recommended capacitance range for the VCC regulator is 0.1 µF to 50 µF.

Product Attributes

Output Type:Transistor Driver
Function:Step-Up/Step-Down
Output Configuration:Positive, Isolation Capable
Topology:Full-Bridge, Half-Bridge, Push-Pull
Number of Outputs:2
Output Phases:1
Voltage - Supply (Vcc/Vdd):14V ~ 90V
Frequency - Switching:200kHz, 600kHz
Duty Cycle (Max):50%
Synchronous Rectifier:No
Clock Sync:No
Serial Interfaces:- 
Control Features:Frequency Control, Soft Start
Operating Temperature:-40°C ~ 105°C (TA)
Mounting Type:Surface Mount
Package / Case:10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
Supplier Device Package:10-VSSOP
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Similar Products

Part Number LM5030MMX/NOPB LM5033MMX/NOPB LM5030MM/NOPB
Manufacturer Texas Instruments Texas Instruments Texas Instruments
Product Status Active Active Active
Output Type Transistor Driver PWM Signal Transistor Driver
Function Step-Up/Step-Down Step-Up/Step-Down Step-Up/Step-Down
Output Configuration Positive, Isolation Capable Positive Positive, Isolation Capable
Topology Full-Bridge, Half-Bridge, Push-Pull Full-Bridge, Half-Bridge, Push-Pull Full-Bridge, Half-Bridge, Push-Pull
Number of Outputs 2 2 2
Output Phases 1 1 1
Voltage - Supply (Vcc/Vdd) 14V ~ 90V 15V ~ 90V 14V ~ 90V
Frequency - Switching 200kHz, 600kHz 200kHz, 600kHz 200kHz, 600kHz
Duty Cycle (Max) 50% - 50%
Synchronous Rectifier No Yes No
Clock Sync No Yes No
Serial Interfaces - - -
Control Features Frequency Control, Soft Start Frequency Control, Soft Start Frequency Control, Soft Start
Operating Temperature -40°C ~ 105°C (TA) -40°C ~ 125°C (TJ) -40°C ~ 105°C (TA)
Mounting Type Surface Mount Surface Mount Surface Mount
Package / Case 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
Supplier Device Package 10-VSSOP 10-VSSOP 10-VSSOP

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