LTC1922-1是Synchronous Phase Modulated Full-Bridge Controller

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LTC1922-1 - LTC1922-1是Synchronous Phase Modulated Full-Bridge Controller

LTC1922-1是Linear公司的一款反激式、正激式和隔离式控制器产品，LTC1922-1是Synchronous Phase Modulated Full-Bridge Controller，本站介绍了LTC1922-1的封装应用图解、特点和优点、功能等，并给出了与LTC1922-1相关的凌力尔特元器件型号供参考。

LTC1922-1 - Synchronous Phase Modulated Full-Bridge Controller

LTC1922-1 - Synchronous Phase Modulated Full-Bridge Controller - Linear Technology（凌力尔特）

功能描述

The LTC?1922-1 phase shift PWM controller provides all of the control and protection functions necessary to implement a high performance, zero voltage switched, phase shift, full-bridge power converter with synchronous rectification. The part is ideal for developing isolated, low voltage, high current outputs from a high voltage input source. The LTC1922-1 combines the benefits of the full-bridge topology with fixed frequency, zero voltage switching operation (ZVS). Adaptive ZVS circuity controls the turn-on signals for each MOSFET independent of internal and external component tolerances for optimal performance.

The LTC1922-1 also provides secondary side synchronous rectifier control. The device uses peak current mode control with programmable slope comp and leading edge blanking.

The LTC1922-1 features extremely low operating and start-up currents to simplify off-line start-up and bias circuitry. The LTC1922-1 also includes a full range of protection features and is available in 20-pin through hole (N) and surface mount (G) packages.

特点

Adaptive DirectSense™ Zero Voltage Switching

Integrated Synchronous Rectification Control for Highest Efficiency

Output Power Levels from 50W to Kilowatts

Very Low Start-Up and Quiescent Currents

Compatible with Voltage Mode and Current Mode Topologies

Programmable Slope Compensation

Undervoltage Lockout Circuitry with 4.2V Hysteresis and Integrated 10.3V Shunt Regulator

Fixed Frequency Operation to 1MHz

50mA Outputs for Bridge Drive and Secondary Side Synchronous Rectifiers

Soft-Start, Cycle-by-Cycle Current Limiting and Hiccup Mode Short-Circuit Protection

5V, 15mA Low Dropout Regulator

20-Pin PDIP and SSOP Packages

应用

Telecommunications, Infrastructure Power Systems

Distributed Power Architectures

Server Power Supplies

High Density Power Modules

以下列出了不同封装及包装形式的具体型号,并标出了直接在linear官网上订货的价格（美元）

器件型号	封装	温度	价格 (以 1 ~ 99 片为批量)	价格 (以 1000 片为批量)
LTC1922EG-1	SSOP-20	E	$6.51	$5.50
LTC1922EG-1#PBF	SSOP-20	E	$6.51	$5.50
LTC1922EG-1#TR	SSOP-20	E		$5.60
LTC1922EG-1#TRPBF	SSOP-20	E		$5.60
LTC1922EN-1	N-20	E	$6.51	$5.50
LTC1922EN-1#PBF	N-20	E	$6.51	$5.50
LTC1922IG-1	SSOP-20	I	$7.04	$5.95
LTC1922IG-1#PBF	SSOP-20	I	$7.04	$5.95
LTC1922IG-1#TR	SSOP-20	I		$6.05
LTC1922IG-1#TRPBF	SSOP-20	I		$6.05
LTC1922IN-1	N-20	I	$7.04	$5.95
LTC1922IN-1#PBF	N-20	I	$7.04	$5.95