The UC1526A Series are improved-performance pulse-width modulator circuits intended for direct replacement of equivalent non- \x93A\x94 versions in all applications. Higher frequency operation has been enhanced by several significant improvements including: a more accurate oscillator with less minimum dead time, reduced circuit delays (particularly in current limiting), and an improved output stage with negligible cross-conduction current. Additional improvements include the incorporation of a precision, band-gap reference generator, reduced overall supply current, and the addition of thermal shutdown protection.
Along with these improvements, the UC1526A Series retains the protective features of under-voltage lockout, soft-start, digital current limiting, double pulse suppression logic, and adjustable deadtime.
| UC1526A | UC2526A | UC3526A | |
| Topology | Boost, Flyback, Forward, Full-Bridge, Half-Bridge, Push-Pull | Boost, Flyback, Forward, Full-Bridge, Half-Bridge, Push-Pull | Boost, Buck, Flyback, Forward, Full-Bridge, Half-Bridge, Push-Pull |
| Control Method | Voltage Mode | Voltage Mode | Voltage Mode |
| Duty Cycle(Max)(%) | 50 | 50 | 50 |
| Frequency(Max)(kHz) | 450 | 450 | 450 |
| UVLO Thresholds On/Off(V) | 7/6.8 | 7/6.8 | 7/6.8 |
| Pin/Package | 18CDIP, 20LCCC | 18PDIP, 18SOIC, 20PLCC | 18PDIP, 18SOIC, 20PLCC |
| Regulated Outputs(#) | 2 | 2 | 2 |
| Operating Temperature Range(°C) | -55 to 125 | -25 to 85 | 0 to 70 |
| Rating | Military | Catalog | Catalog |
| 器件 | 状态 | 温度 (oC) | 价格（美元） | 封装 | 引脚 | 封装数量 | 封装载体 | 丝印标记 |
| UC2526ADW | ACTIVE | -25 to 85 | 1.20 | 1ku | SOIC (DW) | 18 | 40 | TUBE | UC2526ADW |
| UC2526ADWG4 | ACTIVE | -25 to 85 | 1.20 | 1ku | SOIC (DW) | 18 | 40 | TUBE | UC2526ADW |
| UC2526ADWTR | ACTIVE | -25 to 85 | 1.10 | 1ku | SOIC (DW) | 18 | 2000 | LARGE T&R | UC2526ADW |
| UC2526ADWTRG4 | ACTIVE | -25 to 85 | 1.10 | 1ku | SOIC (DW) | 18 | 2000 | LARGE T&R | UC2526ADW |
| UC2526AN | ACTIVE | -25 to 85 | 1.20 | 1ku | PDIP (N) | 18 | 20 | TUBE | UC2526AN |
| UC2526ANG4 | ACTIVE | -25 to 85 | 1.20 | 1ku | PDIP (N) | 18 | 20 | TUBE | UC2526AN |
| UC2526AQ | ACTIVE | -25 to 85 | 1.20 | 1ku | PLCC (FN) | 20 | 46 | TUBE | UC2526AQ |
| UC2526AQG3 | ACTIVE | -25 to 85 | 1.20 | 1ku | PLCC (FN) | 20 | 46 | TUBE | UC2526AQ |
| 器件 | 环保计划* | 铅/焊球涂层 | MSL 等级/回流焊峰 | 环保信息与无铅 (Pb-free) | DPPM / MTBF / FIT 率 |
| UC2526ADW | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-2-260C-1 YEAR | UC2526ADW | |
| UC2526ADWG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-2-260C-1 YEAR | UC2526ADWG4 | UC2526ADWG4 |
| UC2526ADWTR | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-2-260C-1 YEAR | UC2526ADWTR | |
| UC2526ADWTRG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-2-260C-1 YEAR | UC2526ADWTRG4 | UC2526ADWTRG4 |
| UC2526AN | Green (RoHS & no Sb/Br) | CU NIPDAU | N/A for Pkg Type | UC2526AN | |
| UC2526ANG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | N/A for Pkg Type | UC2526ANG4 | UC2526ANG4 |
| UC2526AQ | Green (RoHS & no Sb/Br) | CU SN | Level-2-260C-1 YEAR | UC2526AQ | |
| UC2526AQG3 | Green (RoHS & no Sb/Br) | CU SN | Level-2-260C-1 YEAR | UC2526AQG3 |
| 名称 | 型号 | 公司 | 工具/软件类型 |
| 音频的快速搜索选择工具 | AUDIO_SELECTION_TOOL | Texas Instruments | 免费评估工具 |
| UC2526A 评估模块 | UC2526AEVM | Texas Instruments | 开发电路板/EVM |
| 用于音频转换器的软件驱动程序 | CODECDRIVERS-SW | Texas Instruments | 应用软件 |