LT1339 Selling Leads, Price trend, LT1339 DataSheet download, circuit diagram from SeekIC.com

Features: High Voltage: Operation Up to 60V High Current: Dual N-Channel Synchronous DriveHandles Up to 10,000pF Gate Capacitance Programmable Average Load Current Limiting 5V Reference Output with 10mA ExternalLoading Capability Programmable Fixed Frequency SynchronizableCurrent Mode Operation U...

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LT1339: Features: High Voltage: Operation Up to 60V High Current: Dual N-Channel Synchronous DriveHandles Up to 10,000pF Gate Capacitance Programmable Average Load Current Limiting 5V Reference Output with...

LT1339 Data Sheet

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Part Number:: LT1339
Supply Ability:: 5000

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1~5000

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Negotiable

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15 Days

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Upload time: 2024/11/20

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Product Details

Description

Features:

High Voltage: Operation Up to 60V
High Current: Dual N-Channel Synchronous DriveHandles Up to 10,000pF Gate Capacitance
Programmable Average Load Current Limiting
5V Reference Output with 10mA ExternalLoading Capability
Programmable Fixed Frequency SynchronizableCurrent Mode Operation Up to 150kHz
Undervoltage Lockout with Hysteresis
Programmable Start Inhibit for Power SupplySequencing and Protection
Adaptive Nonoverlapping Gate Drive PreventsShoot-Through

Application

48V Telecom Power Supplies
Personal Computers and Peripherals
Distributed Power Converters
Industrial Control Systems
Lead-Acid Battery Backup Systems
Automotive and Heavy Equipment

Pinout

Connection Diagram

Specifications

Supply Voltages
Power Supply Voltage (12V_IN) ...............0.3V to 20V
Topside Supply Voltage (VBOOST)
VTS 0.3V to VTS + 20V (V_MAX = 75V)
Topside Reference Pin Voltage (T_S) .......0.3V to 60V
Input Voltages
Sense Amplifier Input Common Mode ....0.3V to 60V
RUN/SHDN Pin Voltage ....................... 0.3V to 12V_IN
All Other Inputs .......................................0.3V to 7V
Maximum Currents
5V Reference Output Current ............................ 65mA
Maximum Temperatures
Operating Ambient Temperature Range
LT1339C................................................ 0°C to 70°C
LT1339I ........................................... 40°C to 85°C
Storage Temperature Range .......... 65°C to 150°C
Lead Temperature (Soldering, 10 sec) ............. 300°C

Description

The LT^®1339 is a high power synchronous current modeswitching regulator controller. The IC drives dualN-channel MOSFETs to create a single IC solution for highpower DC/DC converters in applications up to 60V.

The LT1339 incorporates programmable average currentlimiting, allowing accurate limiting of DC load currentindependent of inductor ripple current. The IC also incor-porates user-adjustable slope compensation for minimi-zation of magnetics at duty cycles up to 90%.

The LT1339 timing oscillator operating frequency is pro-grammable and can be synchronized up to 150kHz. Mini-mum off-time operation provides main switch protection.

The IC also incorporates a soft start feature that is gated byboth shutdown and undervoltage lockout conditions.

An output phase reversal pin allows flexibility in configu-ration of converter types, including inverting and negativetopologies.

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LT1339

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