电源适配器
    发布时间: 2024-04-28 12:19    
电源适配器

GR1238,1236系列QR模式PWM 控制器芯片


—— 特性

· 低启动电流(<2UA)

· OCP/OVP/SCP/Ext.OTPIDSP

· 8ms软启动

· GR1236含2倍性增频

· Peak Load 功能最多可 20s

· Brown in/out Vin OVP

· 容易調無Y電容方案

· 超低 EMI 干擾,容易解決 EMI


—— 应用

· 电源适配器/电池充电器

· 用于需要峰值负载的产品





 

■ IsoIation(/w HPFC)

Part No.PackagePo(w)Oper.ModePeakloadF kHzVoOVPBO,BIVinOVPEXT.OTPODSPVo UVP
GR1236           
GR1236DSOT236≤70CCM+QRY65-130YNNYYY
GR1236ASOT236≤70CCM+QRY65-130YYYYYY
GR1236BSOT236≤70CCM+QRY65-130YYNYYY
GR1236CSOT236≤70CCM+QRY65-130YNYYYY

 

■ DOE 6 PWM SSR solution (meet CoC tier 2)

Part No.Po(w)PKGSTB(mW)Oper. ModeFreq.(HZ)OCP VcsBNOVcc/QRD OVPVin OVPOTPOTHER
GR1230<60SOT23-6<70CCM+QR+PFM65K0.85VNLatchNN 
GR1230R<60SOT23-6<70CCM+QR+PFM65K0.85VNAutoNN 
GR1230RA<60SOT23-6<70CCM+QR+PFM65K0.85VNAutoNNNon Audio Noise
GR1230H<60SOT23-6<70CCM+QR+PFM100K0.85VNAutoNN 
GR1837<60SOT23-6<70PWM+PFM65K0.85VNAutoNN 
GR1837A<60SOT23-6<70PWM+PFM65K0.85VNAutoNNVcc OVP latch
GR1281<60SOT23-6<70PWM+PFM65K0.85VNAutoNNVO OVP
GR1281A<150SOT23-6<70PWM+PFM65K0.85VNAutoYNVO OVP,推力強
GR1234A<150SOT23-6<70PWM+PFM65K0.85VNAutoYNPin3 可不接,推力強
GR8869<200SOP8<70PWM+PFM65K0.85VNAutoYNPin3 可不接,推力強

 

■ HV Star up PWM

Part No.Po(w)PKGSTB(mW)Oper. ModeFreq.VcsBNOOVP/OTPVccOVPNote
GR8874<150SOP8<100PWM+PFMadj0.85VNAutoAutoHV-start
GR8875<200SOP7<50PWM+PFM65K0.85VYLatchLatchXcap discharge
GR8875R<200SOP7<50PWM+PFM65K0.85VYLatchAutoXcap discharge
GR8875NR<200SOP7<70PWM+PFM65K0.85VYLatchAuto 
GR8875NA<200SOP7<70PWM+PFM65K0.85VYLatchAutoLower Vds spike,Vo OVP
GR8875NB<200SOP7<70PWM+PFM65K0.85VYAutoAutoLower Vds spike,Vo OVP
GR8875NK<200SOP7<70PWM+PFM65K0.85VYAutoAuto 
GR8875NH<200SOP7<70PWM+PFM100K0.85VYAutoAutoLower Vds spike,Vo OVP