LTC3814-5 Selling Leads, Price trend, LTC3814-5 DataSheet download, circuit diagram from SeekIC.com

Features: ` High Output Voltages: Up to 60V` Large 1 Gate Drivers` No Current Sense Resistor Required` Dual N-Channel MOSFET Synchronous Drive` ±0.5% 0.8V Voltage Reference` Fast Transient Response` Programmable Soft-Start` Generates 5.5V Driver Supply` Power Good Output Voltage Monitor` Adjustabl...

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SeekIC No. : 004402367 Detail

LTC3814-5: Features: ` High Output Voltages: Up to 60V` Large 1 Gate Drivers` No Current Sense Resistor Required` Dual N-Channel MOSFET Synchronous Drive` ±0.5% 0.8V Voltage Reference` Fast Transient Response`...

LTC3814-5 Data Sheet

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Part Number:: LTC3814-5
Supply Ability:: 5000

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1~5000

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15 Days

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Product Details

Description

Features:

` High Output Voltages: Up to 60V
` Large 1 Gate Drivers
` No Current Sense Resistor Required
` Dual N-Channel MOSFET Synchronous Drive
` ±0.5% 0.8V Voltage Reference
` Fast Transient Response
` Programmable Soft-Start
` Generates 5.5V Driver Supply
` Power Good Output Voltage Monitor
` Adjustable Off-Time/Frequency: tOFF(MIN) < 100ns
` Adjustable Cycle-by-Cycle Current Limit
` Undervoltage Lockout On Driver Supply
` Output Overvoltage Protection
` Thermally Enhanced 16-Pin TSSOP Package

Application

· 24V Fan Supplies
· 48V Telecom and Base Station Power Supplies
· Networking Equipment, Servers
· Automotive and Industrial Control Systems

Pinout

Connection Diagram

Specifications

Supply Voltages
    INTV_CC ..................................................... 0.3V to 14V
    (INTV_CC PGND), (BOOST SW) ............ 0.3V to 14V
    BOOST (Continuous) ................................. 0.3V to 85V
    BOOST (400ms) ...................................... 0.3V to 95V
    EXTV_CC ...................................................... 0.3V to 15V
    (EXTV_CC INTV_CC) .................................... 12V to 12V
(NDRV INTVCC) Voltage ............................. 0.3V to 10V
SW Voltage (Continuous) ................................. 1V to 70V
SW Voltage (400ms) ......................................... 1V to 80V
I_OFF Voltage (Continuous) ............................. 0.3V to 70V
I_OFF Voltage (400ms) .................................... 0.3V to 80V
RUN/SS Voltage ............................................... 0.3V to 5V
PGOOD Voltage ............................................... 0.3V to 7V
V_RNG, V_OFF Voltages ...................................... 0.3V to 14V
FB Voltage .................................................... 0.3V to 2.7V
TG, BG, INTV_CC, EXTV_CC RMS Currents ........................50mA
Operating Temperature Range (Note 2)
    LTC3814E-5 .............................................. 40 to 85
    LTC3814I-5 ............................................. 40 to 125
Junction Temperature (Notes 3, 7).............................. 125
Storage Temperature Range ....................... 65 to 150
Lead Temperature (Soldering, 10 sec) ....................... 300

Description

The LTC3814-5 is a synchronous step-up switching regulator controller that can generate output voltages up to 60V. The LTC3814-5 uses a constant off-time peak current control architecture to deliver very high duty cycles with accurate cycle-by-cycle current limit without requiring a sense resistor.

A precise internal reference provides ±0.5% DC accuracy. A high bandwidth (25MHz) error ampliﬁ er provides very fast line and load transient response. Large 1 gate drivers allow the LTC3814-5 to drive large power MOSFETs for higher current applications. The operating frequency is selected by an external resistor and is compensated for variations in V_IN. A shutdown pin allows the LTC3814-5 to be turned off reducing the supply current to <230A.

LTC3814-5

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