LM5023 是一款准谐振脉宽调制 (PWM) 控制器,此控制器包含有实现一个高效离线电源所需的全部功能。 LM5023 使用变压器辅助绕组来实现消磁检测,从而确保了临界传导模式 (CCM) 运行。 LM5023 特有一个用于过流保护的断续模式,它具有的自动重启功能可减少过载期间功率元件上的应力。 针对节能应用(ENERGY STAR®,CEPCP 等)的跳周模式可在轻负载时减少功耗。 LM5023 还使用变压器辅助绕组来实现输出过压 (OVP) 保护,如果检测到 OVP 故障,LM5023 就锁存控制器。
Part number | 立即下单 | Control method | Duty cycle (Max) (%) | Frequency (Max) (kHz) | UVLO thresholds on/off (V) | Features | Operating temperature range (C) | Package Group | Rating | Package size: mm2:W x L (PKG) |
---|---|---|---|---|---|---|---|---|---|---|
LM5023 |
|
Secondary-side regulation | 100 | 130 | 12.8/7.5 |
Quasi-Resonant
SSR Green Mode Light Load Efficiency |
-40 to 125 | VSSOP | 8 | Catalog | 8VSSOP: 15 mm2: 4.9 x 3 (VSSOP | 8) |
UCC28600 |
|
Secondary-side regulation | 99 | 130 | 10.3/9.3 |
SSR
Quasi-Resonant Error Amplifier Green Mode Light Load Efficiency |
-40 to 105 | SOIC | 8 | Catalog | 8SOIC: 19 mm2: 3.91 x 4.9 (SOIC | 8) |
UCC28610 |
|
Secondary-side regulation | 100 | 130 | 10.2/8 |
SSR
HV Start-up DCM |
-40 to 125 |
PDIP | 8
SOIC | 8 |
Catalog |
8PDIP: 93 mm2: 9.43 x 9.81 (PDIP | 8)
8SOIC: 19 mm2: 3.91 x 4.9 (SOIC | 8) |
UCC28704 |
|
Primary-side regulation | 99 | 85 | 21/7.7 |
PSR
DCM |
-40 to 125 | SOT-23 | 6 | Catalog | 6SOT-23: 5 mm2: 1.6 x 2.9 (SOT-23 | 6) |
UCC28740 |
|
Secondary-side regulation | 99 | 100 | 21/7.75 |
SSR
HV Start-up DCM |
-40 to 125 | SOIC | 7 | Catalog | 7SOIC: 29 mm2: 6 x 4.9 (SOIC | 7) |
UCC28780 |
|
Secondary-side regulation | 99 | 1000 | 17.5/10 |
SSR
Zero Voltage Switching |
-40 to 125 |
SOIC | 16
WQFN | 16 |
Catalog |
16SOIC: 59 mm2: 6 x 9.9 (SOIC | 16)
16WQFN: 9 mm2: 3 x 3 (WQFN | 16) |