SG3525A PWM控制器在提供更高性能的同时减少了外部所需零部件数量,可用于控制所有类型的开关电源。片上+5.1V基准微调为+/-1%,误差放大器的输入共模电压范围包括基准电压,因此无需外部分压器电阻。振荡器的同步输入支持多个从属设备,也可让单个设备与外部系统时钟同步。通过在CT和放电引脚之间联接一个电阻,可编程较宽的死区时间范围。这款器件还具备内置软启动电路,仅再需配备一个外部计时电容器。一个关断引脚同时控制软启动电路和输出级,通过带脉冲关断的PWM锁存以及带有更长关断命令的软启动再循环,提供瞬时关断。当VCC低于标称值时,欠压锁定将禁止软启动电容器的输出和更换。输出级为图腾柱设计,可提供超过200mA的拉电流和灌电流。SG3525A的输出级采用NOR逻辑,关闭状态下可产生低输出。
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MSL Temp (°C)
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VCC Min (V)
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Reference Price
SG3525ADWR2G
Active
Pb
A
H
P
SOIC-16W
3
260
REEL
1000
N
Flyback
Forward
Half-Bridge
Push-Pull
Step-Down
Step-Up
1
Voltage Mode
8
35
100-400
$0.8542
More Details
SG3525ANG
Active
Pb
A
H
P
PDIP-16
NA
0
TUBE
25
N
Flyback
Forward
Half-Bridge
Push-Pull
Step-Down
Step-Up
1
Voltage Mode
8
35
100-400
$0.7112
More Details
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可靠性数据
Die Related Summary Data
Device: SG3525ADWR2G
Equivalent to wafer fab process: BP STD LINEAR
产品技术
产品技术
等效器件小时
平均故障间隔时间/平均无故障时间(按小时计算)
FITS
BP STD LINEAR
10
12120914040
More Details
Re-calculate Data
Data is based on the following assumptions.
Note: The temperature and confidence level may be adjusted to your requirements.
Disclaimer: A reliability FIT rate calculated using this tool shall not be used for any functional safety purpose. In case a raw FIT rate needs to be estimated for a component which is targeted to be used in a safety critical application (i.e. compliant to ISO 26262 standard) it should be calculated according to generic safety standards (IEC62380, IEC61709, SN29500, FIDES, etc.)