SG2527A中文资料美高森美数据手册PDF规格书
SG2527A规格书详情
Description
The SG1525A/1527A series of pulse width modulator integrated circuits are designed to offer improved performance and lower external parts count when used to implement all types of switching power supplies. The on-chip +5.1 V reference is trimmed to ±1 initial accuracy and the input common-mode range of the error amplifier includes the reference voltage, eliminating external potentiometers and divider resistors. A Sync input to the oscillator allows multiple units to be slaved together, or a single unit to be synchronized to an external system clock. A single resistor between the CT pin and the Discharge pin provides a wide range of deadtime adjustment. These devices also feature built-in soft-start circuitry with only a timing capacitor required externally. A Shutdown pin controls both the soft-start circuitry and the output stages, providing instantaneous turn-off with soft-start recycle for slow turn-on. These functions are also controlled by an undervoltage lockout which keeps the outputs off and the soft-start capacitor discharged for input voltages less than that required for normal operation. Another unique feature of these PWM circuits is a latch following the comparator. Once a PWM pulse has been terminated for any reason, the outputs remain off for the duration of the period. The latch is reset with each clock pulse. The output stages are totempole designs capable of sourcing or sinking in excess of 200mA.
The SG1525A output stage features NOR logic, giving a LOW output for an OFF state. The SG1527A utilizes OR logic, which results in a HIGH output level when OFF.
Features
■ 8V to 35V Operation
■ 5.1V Reference Trimmed to 1
■ 100Hz to 500kHz Oscillator Range
■ Separate Oscillator Sync Terminal
■ Adjustable Deadtime Control
■ Internal Soft-start
■ Input Undervoltage Lockout
■ Latching P.W.M. to Prevent Multiple Pulses
■ Dual Source/Sink Output Drivers
High Reliability Features
Following are the high reliability features of SG1525A and SG1527A:
■ Available to MIL-STD-883, ¶ 1.2.1
■ MIL-M38510/12602BEA - JAN1525AJ
■ MIL-M38510/12604BEA - JAN1527AJ
■ MSC-AMS level “S” Processing Available
产品属性
- 型号:
SG2527A
- 制造商:
MICROSEMI
- 制造商全称:
Microsemi Corporation
- 功能描述:
REGULATING PULSE WIDTH MODULATOR
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
LINFINI |
2020+ |
SOP18 |
80000 |
只做自己库存,全新原装进口正品假一赔百,可开13%增 |
询价 | ||
LINFINTY |
DIP |
90000 |
集团化配单-有更多数量-免费送样-原包装正品现货-正规 |
询价 | |||
SG |
19+ |
CDIP |
2539 |
原厂代理渠道,每一颗芯片都可追溯原厂; |
询价 | ||
LINFINITY |
01+ |
SOP-18P |
6 |
现货 |
询价 | ||
MSC |
23+ |
SOP18 |
5000 |
原装正品,假一罚十 |
询价 | ||
LINFINIT |
22+ |
SOP-18 |
17607 |
原装现货假一赔十 |
询价 | ||
STM |
24+ |
SMD |
28500 |
授权代理直销,原厂原装现货,假一罚十,特价销售 |
询价 | ||
LINFINIT |
22+ |
SOP-18 |
25000 |
只有原装原装,支持BOM配单 |
询价 | ||
LINFINIT |
22+ |
SOP-18 |
25000 |
只有原装绝对原装,支持BOM配单! |
询价 | ||
光电子 |
20+ |
DIP |
88720 |
红外全新原装主营-可开原型号增税票 |
询价 |