LM5035B Series

PWM controller with Integrated half-bridge and 5V SyncFET Drive output with Increased max duty cycle

Catalog

PWM controller with Integrated half-bridge and 5V SyncFET Drive output with Increased max duty cycle

Part	Output Configuration	Function	Voltage - Supply (Vcc/Vdd) [Max]	Voltage - Supply (Vcc/Vdd) [Min]	Output Phases	Package / Case	Operating Temperature [Min]	Operating Temperature [Max]	Control Features	Output Type	Supplier Device Package	Mounting Type	Topology	Number of Outputs	Frequency - Switching	Supplied Contents	Board Type	Main Purpose	Current - Output	Utilized IC / Part	Regulator Topology	Voltage - Input [Max]	Voltage - Input [Min]	Outputs and Type	Outputs and Type	Voltage - Output	Package / Case [custom]	Package / Case	Package / Case [custom]	Package / Case [custom]	Frequency - Switching [Max]	Frequency - Switching [Min]
Texas Instruments LM5035CSQ/NOPB	Isolation Capable Positive	Step-Up/Step-Down	105 V	13 V	1	24-WFQFN Exposed Pad	-40 °C	125 ¯C	Frequency Control Ramp Soft Start	Transistor Driver	24-WQFN (4x5)	Surface Mount	Half-Bridge	1	200 kHz 500 kHz
Texas Instruments LM5035BSQ/NOPB	Isolation Capable Positive	Step-Up/Step-Down	105 V	13 V	1	24-WFQFN Exposed Pad	-40 °C	125 ¯C	Frequency Control Ramp Soft Start	Transistor Driver	24-WQFN (4x5)	Surface Mount	Half-Bridge	1	200 kHz 500 kHz
Texas Instruments LM5035CEVAL/NOPB															400 kHz	Board(s)	Fully Populated	DC/DC Step Down	30 A	LM5035C	Buck	75 V	36 V	Isolated	1	3.3 V
Texas Instruments LM5035CMH/NOPB	Isolation Capable Positive	Step-Up/Step-Down	105 V	13 V	1	20-PowerTSSOP	-40 °C	125 ¯C	Frequency Control Ramp Soft Start	Transistor Driver	20-HTSSOP	Surface Mount	Half-Bridge	1	200 kHz 500 kHz												4.4 mm	0.173 in
Texas Instruments LM5035AMH-1/NOPB	Isolation Capable Positive	Step-Up/Step-Down	105 V	13 V	1	28-PowerTSSOP	-40 °C	125 ¯C	Frequency Control Ramp Soft Start	Transistor Driver	28-HTSSOP	Surface Mount	Half-Bridge	1	200 kHz 500 kHz														4.4 mm	0.173 "
Texas Instruments LM5035SQ/NOPB	Isolation Capable Positive	Step-Up/Step-Down	105 V	13 V	1	24-WFQFN Exposed Pad	-40 °C	125 ¯C	Frequency Control Ramp Soft Start	Transistor Driver	24-WQFN (4x5)	Surface Mount	Half-Bridge	1	200 kHz 500 kHz
Texas Instruments LM5035MHX/NOPB	Isolation Capable Positive	Step-Up/Step-Down	105 V	13 V	1	20-PowerTSSOP	-40 °C	125 ¯C	Frequency Control Ramp Soft Start	Transistor Driver	20-HTSSOP	Surface Mount	Half-Bridge	1	200 kHz 500 kHz												4.4 mm	0.173 in
Texas Instruments LM5035ASQ/NOPB	Isolation Capable Positive	Step-Up/Step-Down	105 V	13 V	1	24-WFQFN Exposed Pad	-40 °C	125 ¯C	Frequency Control Ramp Soft Start	Transistor Driver	24-WQFN (4x5)	Surface Mount	Half-Bridge	1	200 kHz 500 kHz
Texas Instruments LM5035AMHX/NOPB	Isolation Capable Positive	Step-Up/Step-Down	105 V	13 V	1	20-PowerTSSOP	-40 °C	125 ¯C	Frequency Control Ramp Soft Start	Transistor Driver	20-HTSSOP	Surface Mount	Half-Bridge	1	200 kHz 500 kHz												4.4 mm	0.173 in
Texas Instruments LM5035BSQX/NOPB	Isolation Capable Positive	Step-Up/Step-Down	105 V	13 V	1	24-WFQFN Exposed Pad	-40 °C	125 ¯C	Frequency Control Ramp Soft Start	Transistor Driver	24-WQFN (4x5)	Surface Mount	Half-Bridge	1																	500 kHz	200 kHz

Catalog

PWM controller with Integrated half-bridge and 5V SyncFET Drive output with Increased max duty cycle

Key Features

• 105V / 2A Half-Bridge Gate DriversSynchronous Rectifier Control Outputs with Programmable DelaysSynchronous Rectifiers Turned Off in Shutdown Modes.Reduced Deadtime Between High and Low Side Drive for Higher Maximum Duty Cycle.High Voltage (105V) Start-up RegulatorVoltage mode Control with Line Feed-Forward and Volt Second LimitingResistor Programmed, 2MHz Capable OscillatorProgrammable Line Under-Voltage Lockout and Over-Voltage ProtectionInternal Thermal Shutdown ProtectionAdjustable Soft-StartVersatile Dual Mode Over-Current Protection with Hiccup Delay TimerCycle-by-Cycle Over-Current ProtectionDirect Opto-coupler Interface5V Reference OutputPackagesTSSOP-20WQFN-24 (4mm x 5mm)All trademarks are the property of their respective owners.105V / 2A Half-Bridge Gate DriversSynchronous Rectifier Control Outputs with Programmable DelaysSynchronous Rectifiers Turned Off in Shutdown Modes.Reduced Deadtime Between High and Low Side Drive for Higher Maximum Duty Cycle.High Voltage (105V) Start-up RegulatorVoltage mode Control with Line Feed-Forward and Volt Second LimitingResistor Programmed, 2MHz Capable OscillatorProgrammable Line Under-Voltage Lockout and Over-Voltage ProtectionInternal Thermal Shutdown ProtectionAdjustable Soft-StartVersatile Dual Mode Over-Current Protection with Hiccup Delay TimerCycle-by-Cycle Over-Current ProtectionDirect Opto-coupler Interface5V Reference OutputPackagesTSSOP-20WQFN-24 (4mm x 5mm)All trademarks are the property of their respective owners.

Description

The LM5035B Half-Bridge Controller/Gate Driver contains all of the features necessary to implement half-bridge topology power converters using voltage mode control with line voltage feed-forward. The LM5035B is a functional variant of the LM5035A half-bridge PWM controller. The LM5035B provides higher maximum duty cycle and higher start-up regulator output current than the LM5035A or LM5035. Also, the Synchronous Rectifier drive outputs of the LM5035B are held low in shutdown modes. The LM5035, LM5035A, and LM5035B include a floating high-side gate driver, which is capable of operating with supply voltages up to 105V. Both the high-side and low-side gate drivers are capable of 2A peak. An internal high voltage startup regulator is included, along with programmable line undervoltage lockout (UVLO) and overvoltage protection (OVP). The oscillator is programmed with a single resistor to frequencies up to 2MHz. The oscillator can also be synchronized to an external clock. A current sense input and a programmable timer provide cycle-by-cycle current limit and adjustable hiccup mode overload protection.The differences between LM5035, LM5035A, LM5035B, and LM5035C are summarized in . The LM5035B Half-Bridge Controller/Gate Driver contains all of the features necessary to implement half-bridge topology power converters using voltage mode control with line voltage feed-forward. The LM5035B is a functional variant of the LM5035A half-bridge PWM controller. The LM5035B provides higher maximum duty cycle and higher start-up regulator output current than the LM5035A or LM5035. Also, the Synchronous Rectifier drive outputs of the LM5035B are held low in shutdown modes. The LM5035, LM5035A, and LM5035B include a floating high-side gate driver, which is capable of operating with supply voltages up to 105V. Both the high-side and low-side gate drivers are capable of 2A peak. An internal high voltage startup regulator is included, along with programmable line undervoltage lockout (UVLO) and overvoltage protection (OVP). The oscillator is programmed with a single resistor to frequencies up to 2MHz. The oscillator can also be synchronized to an external clock. A current sense input and a programmable timer provide cycle-by-cycle current limit and adjustable hiccup mode overload protection.The differences between LM5035, LM5035A, LM5035B, and LM5035C are summarized in .