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  • The ST1843 and ST1845 ICs are rad-hard 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 (<0.5 mA) and operating current
    • Ceramic hermetic package Flat-8 metallic lid floating
    • ST1843 50 krad (Si)
    • ST1845 100 krad (Si)
    • SEL free @ 120 MeV/cm2/mg at 125 °C
    • ESCC qualified as 9108/020 and 9108/021

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
更多信息
Budgetary Price (US$)*/Qty
从ST订购
从分销商订购
ST1845K1
批量生产
- Engineering Model - Flat-8 Gold Carrier Tape ST1845K1
更多信息

ECCN (US):

EAR99

Country of Origin:

FRANCE

没有经销商,请联系我们的销售办事处
ST1845RKG
批量生产
9108/021/01R ESCC Flight true Flat-8 Gold Carrier Tape 9108/021/01R
更多信息

ECCN (US):

EAR99

Country of Origin:

FRANCE

没有经销商,请联系我们的销售办事处
ST1845RKT
批量生产
9108/021/02R ESCC Flight true Flat-8 Solder dip Carrier Tape 9108/021/02R
更多信息

ECCN (US):

EAR99

Country of Origin:

FRANCE

没有经销商,请联系我们的销售办事处

ST1845K1

供货状态

批&#8288;量&#8288;生&#8288;产

SMD PIN/Detailed Spec

-

Quality Level

Engineering Model

EPPL

-

Hi-Rel Package

Flat-8

Lead Finish

Gold

包装类型

Carrier Tape

Package: Product Marking

ST1845K1

ECCN (US)

EAR99

Country of Origin

FRANCE

ST1845RKG

供货状态

批&#8288;量&#8288;生&#8288;产

SMD PIN/Detailed Spec

9108/021/01R

Quality Level

ESCC Flight

EPPL

true

Hi-Rel Package

Flat-8

Lead Finish

Gold

包装类型

Carrier Tape

Package: Product Marking

9108/021/01R

ECCN (US)

EAR99

Country of Origin

FRANCE

ST1845RKT

供货状态

批&#8288;量&#8288;生&#8288;产

SMD PIN/Detailed Spec

9108/021/02R

Quality Level

ESCC Flight

EPPL

true

Hi-Rel Package

Flat-8

Lead Finish

Solder dip

包装类型

Carrier Tape

Package: Product Marking

9108/021/02R

ECCN (US)

EAR99

Country of Origin

FRANCE

(*) 建议转售单价(美元)仅用于预算用途。如需以当地货币计价的报价,请联系您当地的 ST销售办事处 或我们的 经销商

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产品型号 供货状态 封装 等级规格 符合RoHS级别 材料声明**
ST1845K1
批量生产
FLAT8 lead 8mm EM Industrial N/A
ST1845RKG
批量生产
FLAT8 lead 8mm FP Industrial N/A
ST1845RKT
批量生产
FLAT8 lead 8mm FP Industrial N/A

ST1845K1

Package:

FLAT8 lead 8mm EM

Material Declaration**:

Marketing Status

批量生产

Package

FLAT8 lead 8mm EM

Grade

Industrial

RoHS Compliance Grade

N/A

ST1845RKG

Package:

FLAT8 lead 8mm FP

Material Declaration**:

Marketing Status

批量生产

Package

FLAT8 lead 8mm FP

Grade

Industrial

RoHS Compliance Grade

N/A

ST1845RKT

Package:

FLAT8 lead 8mm FP

Material Declaration**:

Marketing Status

批量生产

Package

FLAT8 lead 8mm FP

Grade

Industrial

RoHS Compliance Grade

N/A

(**) 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