UC3524A_TI 占空比为 45%、温度范围为 0°C 至 70°C 的高级 40V VCC、双端 300KHz 电压模式 PWM 控制器

UC3524A的基本参数

制造厂商：TI
产品类别：电源管理
技术类目：交流/直流和隔离式直流/直流开关稳压器 - PWM 控制器
功能描述：占空比为 45%、温度范围为 0°C 至 70°C 的高级 40V VCC、双端 300KHz 电压模式 PWM 控制器
点击这里打开及下载UC3524A的技术文档资料
TI代理渠道，提供当日发货、严格的质量标准，满足您的目标价格

UC3524A的产品详情：

The UC1524A family of regulating PWM ICs has been designed to retain the same highly versatile architecture of the industry standard UC1524 (SG1524) while offering substantial improvements to many of its limitations. The UC1524A is pin compatible with "non-A" models and in most existing applications can be directly interchanged with no effect on power supply performance. Using the UC1524A, however, frees the designer from many concerns which typically had required additional circuitry to solve.

The UC1524A includes a precise 5V reference trimmed to ±1% accuracy, eliminating the need for potentiometer adjustments; an error amplifier with an input range which includes 5V, eliminating the need for a reference divider; a current sense amplifier useful in either the ground or power supply output lines; and a pair of 60V, 200mA uncommitted transistor switches which greatly enhance output versatility.

An additional feature of the UC1524A is an under-voltage lockout circuit which disables all the internal circuitry, except the reference, until the input voltage has risen to 8V. This holds standby current low until turn-on, greatly simplifying the design of low power, off-line supplies. The turn-on circuit has approximately 600mV of hysteresis for jitter-free activation.

Other product enhancements included in the UC1524A’s design include a PWM latch which insures freedom from multiple pulsing within a period, even in noisy environments, logic to eliminate double pulsing on a single output, a 200ns external shutdown capability, and automatic thermal protection from excessive chip temperature. The oscillator circuit of the UC1524A is usable beyond 500kHz and is now easier to synchronize with an external clock pulse.

The UC1524A is packaged in a hermetic 16-pin DIP and is rated for operation from -55°C to +125°C. The UC2524A and 3524A are available in either ceramic or plastic packages and are rated for operation from -25°C to +85°C and 0°C to 70°C, respectively. Surface mount devices are also available.

UC3524A的优势和特性：

Fully Interchangeable with Standard UC1524 Family
Precision Reference Internally Trimmed to ±1%
High-Performance Current Limit Function
Under-Voltage Lockout with Hysteretic Turn-on
Start-Up Supply Current Less Than 4mA
Output Current to 200mA
60V Output Capability
Wide Common-Mode Input Range for both Error and Current Limit Amplifiers
PWM Latch Insures Single Pulse per Period
Double Pulse Suppression Logic
200ns Shutdown through PWM Latch
Guaranteed Frequency Accuracy
Thermal Shutdown Protection

UC3524A的参数（英文）：

Topology
Boost, Buck, Flyback, Forward, Full-Bridge, Half-Bridge, Push-Pull
Duty cycle (Max) (%)
50
Supply voltage (Max) (V)
40
UVLO thresholds on/off (V)
7.5/7
Features
Adjustable Switching Frequency, Error Amplifier, Multi-topology, Soft Start, Synchronization Pin
Operating temperature range (C)
0 to 70
Rating
Catalog
Frequency (Max) (kHz)
450
Gate drive (Typ) (A)
0.2

UC3524A具体的完整产品型号参数及价格（美元）：

UC3524A的完整型号有：UC3524ADW、UC3524ADWTR、UC3524AN，以下是这些产品的关键参数及官网采购报价：

UC3524ADW，工作温度：0 to 70，封装：SOIC (DW)-16，包装数量MPQ：40个，MSL 等级/回流焊峰值温度：Level-2-260C-1 YEAR，引脚镀层/焊球材料：NIPDAU，TI官网UC3524ADW的批量USD价格：0.806（1000+）

UC3524ADWTR，工作温度：0 to 70，封装：SOIC (DW)-16，包装数量MPQ：2000个，MSL 等级/回流焊峰值温度：Level-2-260C-1 YEAR，引脚镀层/焊球材料：NIPDAU，TI官网UC3524ADWTR的批量USD价格：0.62（1000+）

UC3524AN，工作温度：0 to 70，封装：PDIP (N)-16，包装数量MPQ：25个，MSL 等级/回流焊峰值温度：N/A for Pkg Type，引脚镀层/焊球材料：NIPDAU，TI官网UC3524AN的批量USD价格：0.868（1000+）

UC3524A的评估套件：

UC3524A的电路图解：

UC3524A的评估套件：