UCC3921 可锁存负浮点单路热插拔 IC 商用温度
UCC3921 描述
The UCC3921 family of negative floating hot swap power managers provides complete power management, hot swap, and fault handling capability. The IC is referenced to the negative input voltage and is powered through an external resistor connected to ground, which is essentially a current drive as opposed to the traditional voltage drive. The onboard 10V shunt regulator protects the IC from excess voltage and serves as a reference for programming the maximum allowable output sourcing current during a fault. All control and housekeeping functions are integrated and externally programmable. These include the fault current level, maximum output sourcing current, maximum fault time, selection of Retry or Latched mode, soft start time, and average power limiting.
|
UCC2921 |
UCC3921 |
| No. of Outputs |
1 |
1 |
| Vin(Min)(V) |
-9999 |
-9999 |
| Vin(Max)(V) |
-10.5 |
-10.5 |
| Pin/Package |
8SOIC |
8PDIP, 8SOIC |
| Operation |
Auto-Retry |
Auto-Retry |
| Approx. Price (US$) |
1.85 | 1ku |
1.60 | 1ku |
UCC3921 特性
- Precision Fault Threshold
- Programmable: Average Power Limiting, Linear Current Control, Overcurrent Limit and Fault Time
- Fault Output Indication Signal
- Automatic Retry Mode or Latched Operation Mode
- Shutdown Control
- Undervoltage Lockout
- 250us Glitch Filter on the SDFLTCH pin
- 8-Pin DIL and SOIC
UCC3921 芯片订购指南
| 器件 |
状态 |
温度 (oC) |
价格（美元） | Quantity |
封装 | 引脚 |
封装数量 | 封装载体 |
丝印标记 |
| UCC3921D |
ACTIVE |
0 to 70 |
1.95 | 1ku |
SOIC (D) | 8 |
75 | TUBE |
UCC3921 |
| UCC3921D/81143 |
ACTIVE |
|
1.95 | 1ku |
SOIC (D) | 8 |
75 | TUBE |
UCC3921 |
| UCC3921D/81143G4 |
ACTIVE |
|
1.95 | 1ku |
SOIC (D) | 8 |
75 | TUBE |
UCC3921 |
| UCC3921DG4 |
ACTIVE |
0 to 70 |
1.95 | 1ku |
SOIC (D) | 8 |
75 | TUBE |
UCC3921 |
| UCC3921DTR |
ACTIVE |
0 to 70 |
1.60 | 1ku |
SOIC (D) | 8 |
2500 | LARGE T&R |
UCC3921 |
| UCC3921DTR/81143 |
ACTIVE |
|
1.60 | 1ku |
SOIC (D) | 8 |
2500 | LARGE T&R |
UCC3921 |
| UCC3921DTR/81143G4 |
ACTIVE |
|
1.60 | 1ku |
SOIC (D) | 8 |
2500 | LARGE T&R |
UCC3921 |
| UCC3921DTRG4 |
ACTIVE |
0 to 70 |
1.60 | 1ku |
SOIC (D) | 8 |
2500 | LARGE T&R |
UCC3921 |
| UCC3921N |
ACTIVE |
0 to 70 |
1.60 | 1ku |
PDIP (P) | 8 |
50 | TUBE |
UCC3921N |
| UCC3921NG4 |
ACTIVE |
0 to 70 |
1.60 | 1ku |
PDIP (P) | 8 |
50 | TUBE |
UCC3921N |
UCC3921 质量与无铅数据
| 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 |
| UCC3921D |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
UCC3921D |
UCC3921D |
| UCC3921D/81143 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
UCC3921D/81143 |
UCC3921D/81143 |
| UCC3921D/81143G4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
UCC3921D/81143G4 |
UCC3921D/81143G4 |
| UCC3921DG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
UCC3921DG4 |
UCC3921DG4 |
| UCC3921DTR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
UCC3921DTR |
UCC3921DTR |
| UCC3921DTR/81143 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
UCC3921DTR/81143 |
UCC3921DTR/81143 |
| UCC3921DTR/81143G4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
UCC3921DTR/81143G4 |
UCC3921DTR/81143G4 |
| UCC3921DTRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
UCC3921DTRG4 |
UCC3921DTRG4 |
| UCC3921N |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
N/A for Pkg Type |
UCC3921N |
UCC3921N |
| UCC3921NG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
N/A for Pkg Type |
UCC3921NG4 |
UCC3921NG4 |
UCC3921 应用技术支持与电子电路设计开发资源下载
- UCC3921 数据资料 dataSheet 下载.PDF
- TI 德州仪器热插拔控制器（外部 FET）产品选型与价格 . xls
- PowerPAD™ Thermally Enhanced Package
(PDF 1040 KB)
- 全面认识开关型电源中的BUCK-BOOST功率级 (Rev. A)
(PDF 2206 KB)
- Shelf-Life Evaluation of Lead-Free Component Finishes (PDF 1305 KB)
- PowerPAD™ Made Easy (PDF 57 KB)
- 标准线性产品交叉参考 (Rev. D)
(PDF 1058 KB)
- 模数规格和性能特性术语表 (Rev. A) (PDF 1993 KB)
- 所选封装材料的热学和电学性质 (PDF 645 KB)
- 高速数据转换 (PDF 1967 KB)
UCC3921 相关工具
| 名称 |
型号 |
公司 |
工具/软件类型 |
| UCC3921 评估模块 |
UCC3921EVM |
Texas Instruments |
开发电路板/EVM |