-
The ST1843 and ST1845 ICs are rad-tolerant current mode PWM controllers providing an industry standard solution for the implementation of off-line or DC to DC fixed frequency current mode control schemes with a minimal external part count.
Its radiation hardness, hermetic packaging and its ESCC qualification make it an ideal choice for aerospace and other harsh environments.
主要特性
- Oscillator frequency guaranteed at 250 kHz
- Trimmed oscillator for precise frequency control
- Current mode operation to 500 kHz automatic feed forward compensation
- Latching PWM for cycle-by-cycle current limiting
- Internally trimmed reference with undervoltage lockout
- High current totem pole output
- Undervoltage lockout with hysteresis
- Low start-up and operating current
- Hermetic package
- 50 krad (Si)
- SEL free @ 120 MeV/cm2/mg at 125 °C
- ESCC qualified
样片和购买
| 产品型号 | 供货状态 | SMD PIN/Detailed Spec | Quality Level | EPPL | Hi-Rel Package | Lead Finish | 包装类型 | Package: Product Marking | ECCN (US) | Country of Origin | 更多信息 | Approximate Price (US$)* / Qty | 从ST订购 | 从分销商订购 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ST1843K1 | 批量生产 | - | ESCC Flight | - | Flat-8 | Gold | Carrier Tape | ST1843K1 | EAR99 | FRANCE | 没有经销商，请联系我们的销售办事处 | |||
| ST1843FKG | 批量生产 | 9108/020/01F | ESCC Flight | true | Flat-8 | Gold | Carrier Tape | 9108/020/01F | EAR99 | FRANCE | 没有经销商，请联系我们的销售办事处 | |||
| ST1843FKT | 批量生产 | 9108/020/02F | ESCC Flight | true | Flat-8 | Solder dip | Carrier Tape | 9108/020/02F | EAR99 | FRANCE | 没有经销商，请联系我们的销售办事处 |
ST1843K1
供货状态
批⁠量⁠生⁠产SMD PIN/Detailed Spec
-ST1843FKG
供货状态
批⁠量⁠生⁠产SMD PIN/Detailed Spec
9108/020/01FST1843FKT
供货状态
批⁠量⁠生⁠产SMD PIN/Detailed Spec
9108/020/02F| 产品型号 | 供货状态 | 封装 | 等级规格 | 符合RoHS级别 | 材料声明** |
|---|---|---|---|---|---|
| ST1843FKG | 批量生产 | FLAT8 lead 8mm FP | Industrial | N/A | |
| ST1843FKT | 批量生产 | FLAT8 lead 8mm FP | Industrial | N/A | |
| ST1843K1 | 批量生产 | FLAT8 lead 8mm EM | Industrial | N/A | |
ST1843FKG
Package:
FLAT8 lead 8mm FPMaterial Declaration**:
ST1843FKT
Package:
FLAT8 lead 8mm FPMaterial Declaration**:
ST1843K1
Package:
FLAT8 lead 8mm EMMaterial Declaration**:
(**) st.com上提供的材料声明表单可能是基于包装系列中最常用的封装的通用文档。因此，它们可能不是100%适用于特定的设备。有关特定设备的信息，请联系 销售支持 。
