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GM3845A中文资料
GM3845A数据手册规格书PDF详情
Description
GM384XA series is high performance with fixed frequency current mode PWM controllers. They are specially designed for off-Line and DC-to-DC converter applications with minimum external components. These devices feature a trimmed oscillator for precise duty cycle control, a temperature compensated reference, high gain error amplifier, current sensing comparator, and high current totem pole output which is suitable for driving MOSFETs.
The under voltage lock-out (U.V.L.O.) is designed to operated with 0.17mA typ. start-up current, allowing an efficient bootstrap supply voltage design. The U.V.L.O. thresholds for the AMC3842A/44A are 16V (on) and 10V (off) which are ideal for off-line applications. The corresponding typical threshold for the GM3843A/45A is 8.4V (on) and 7.6V (off). The GM3842A/43A can operated within 100 duty cycle and the GM3844A/45A can operated within 50 duty cycle.
Features
♦ Low Start-Up and Operating Current
♦ Automatic Feed Forward Compensation
♦ Current Mode Operating Frequency up to 500KHz
♦ Trimmed Oscillator Discharge Current for Precise Duty Cycle Control
♦ Latching PWM for Cycle-By-Cycle Current Limiting
♦ Under Voltage Lockout with Hysteresis
♦ High Current totem Pole Output Stage
Application
Off-line flyback or forward converters
DC-to DC buck boost converter
Monitor Power Supply
GM3845A产品属性
- 类型
描述
- 型号
GM3845A
- 制造商
GAMMA
- 制造商全称
GAMMA
- 功能描述
CURRENT MODE PWM CONTROLLER
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
GAMMA |
23+ |
DIP-8 |
50000 |
全新原装正品现货,支持订货 |
|||
GAMMA |
24+ |
NA/ |
4390 |
原装现货,当天可交货,原型号开票 |
|||
GAMMA |
25+ |
DIP-8 |
1140 |
原装正品,假一罚十! |
|||
GAMMA |
23+ |
SOP8 |
5000 |
原装正品,假一罚十 |
|||
GAMMA |
25+ |
DIP-8 |
18000 |
原厂直接发货进口原装 |
|||
GAMMA |
24+ |
SOP8 |
5000 |
全现原装公司现货 |
|||
GAMMA |
04+ |
SOP8 |
2500 |
现货 |
|||
GAMMA |
25+ |
SOP-8 |
2500 |
就找我吧!--邀您体验愉快问购元件! |
|||
GAMMA |
22+ |
SOP-8L |
6000 |
十年配单,只做原装 |
|||
GAMMA |
23+ |
SOP-8 |
3200 |
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