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参数资料
| 型号： | LTC3723EGN-2#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 1/20页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR FLYBK ISO VM 16SSOP |
| 标准包装： | 100 |
| PWM 型： | 电压模式 |
| 输出数： | 1 |
| 频率 - 最大： | 1MHz |
| 占空比： | 50% |
| 电源电压： | 10V（最小值） |
| 降压： | 无 |
| 升压： | 无 |
| 回扫： | 是 |
| 反相： | 无 |
| 倍增器： | 无 |
| 除法器： | 无 |
| Cuk： | 无 |
| 隔离： | 是 |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 16-SSOP（0.154"，3.90mm 宽） |
| 包装： | 管件 |
LTC3723-1/LTC3723-2
Synchronous Push-Pull
PWM Controllers
FEATURES
DESCRIPTIO
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High Efficiency Synchronous Push-Pull PWM
1.5A Sink, 1A Source Output Drivers
Supports Push-Pull, Full-Bridge, Half-Bridge, and
Forward Topologies
Adjustable Push-Pull Dead-Time and Synchronous
Timing
Adjustable System Undervoltage Lockout and
Hysteresis
Adjustable Leading Edge Blanking
Low Start-Up and Quiescent Currents
Current Mode (LTC3723-1) or Voltage Mode
(LTC3723-2) Operation
Single Resistor Slope Compensation
V CC UVLO and 25mA Shunt Regulator
Programmable Fixed Frequency Operation to 1MHz
50mA Synchronous Output Drivers
Soft-Start, Cycle-by-Cycle Current Limiting and
Hiccup Mode Short-Circuit Protection
5V, 15mA Low Dropout Regulator
Available in 16-Pin SSOP Package
The LTC ? 3723-1/LTC3723-2 synchronous push-pull PWM
controllers provide all of the control and protection func-
tions necessary for compact and highly efficient, isolated
power converters. High integration minimizes external
component count, while preserving design flexibility.
The robust push-pull output stages switch at half the
oscillator frequency. Dead-time is independently pro-
grammed with an external resistor. Synchronous rectifier
timing is adjustable to optimize efficiency. A UVLO pro-
gram input provides precise system turn-on and turn off
voltages. The LTC3723-1 features peak current mode
control with programmable slope compensation and lead-
ing edge blanking, while the LTC3723-2 employs voltage
mode control with voltage feedforward capability.
The LTC3723-1/LTC3723-2 feature extremely low operat-
ing and start-up currents. Both devices provide reliable
short-circuit and overtemperature protection. The
LTC3723-1/LTC3723-2 are offered in a 16-pin SSOP
package.
APPLICATIO S
, LTC and LT are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
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Telecommunications, Infrastructure Power Systems
Distributed Power Architectures
TYPICAL APPLICATIO
Isolated Push-Pull Converter
V OUT
V IN
FROM
UVLO
DRVA
?
?
SYNC
ME
AUXILIARY
WINDING
V REF
SPRG
V CC
DPRG
DRVB
CS
LTC3901
MF
C T
R LEB
SDRA
SDRB
V REF
V REF
V OUT
V +
LTC3723-1
V OUT
COLL
LT1431
R REF
SS
COMP
FB GND
GND-F GND-S
372312 TA01
372312f
1
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