TL499A 宽电压范围电源控制器
|
TL499A |
| Iout(Max)(A) |
0.1 |
| Vin(Min)(V) |
1.1 |
| Vin(Max)(V) |
10 |
| Vout(Min)(V) |
2.9 |
| Vout(Max)(V) |
30 |
| Switch Current Limit(Typ)(A) |
0.5 |
| Operating Temperature Range(°C) |
-20 to 85 |
| Pin/Package |
8PDIP, 8SO |
| Topology |
Boost |
TL499A 描述
The TL499A is an integrated circuit designed to provide a wide range of adjustable regulated supply voltages. The regulated output voltage can be varied from 2.9 V to 30 V by adjusting two external resistors. When the TL499A is ac-coupled to line power through a step-down transformer, it operates as a series dc voltage regulator to maintain the regulated output voltage. With the addition of a battery from 1.1 V to 10 V, an inductor, a filter capacitor, and two resistors, the TL499A operates as a step-up switching regulator during an ac-line failure.
The adjustable regulated output voltage makes the TL499A useful for a wide range of applications. Providing backup power during an ac-line failure makes the TL499A extremely useful in microprocessor memory applications.
TL499A 特性
- Internal Series-Pass and Step-Up Switching Regulator
- Output Adjustable From 2.9 V to 30 V
- 1-V to 10-V Input for Switching Regulator
- 4.5-V to 32-V Input for Series Regulator
- Externally Controlled Switching Current
- No External Rectifier Required
TL499A 芯片订购指南
| 器件 |
状态 |
温度 |
价格（美元） |
封装 | 引脚 |
封装数量 | 封装载体 |
丝印标记 |
| TL499ACP |
ACTIVE |
-20 to 85 |
1.20 | 1ku |
PDIP (P) | 8 |
50 | TUBE |
TL499ACP |
| TL499ACPE4 |
ACTIVE |
-20 to 85 |
1.20 | 1ku |
PDIP (P) | 8 |
50 | TUBE |
TL499ACP |
| TL499ACPSR |
ACTIVE |
-20 to 85 |
1.20 | 1ku |
SO (PS) | 8 |
2000 | LARGE T&R |
T499A |
| TL499ACPSRE4 |
ACTIVE |
-20 to 85 |
1.20 | 1ku |
SO (PS) | 8 |
2000 | LARGE T&R |
T499A |
| TL499ACPSRG4 |
ACTIVE |
-20 to 85 |
1.20 | 1ku |
SO (PS) | 8 |
2000 | LARGE T&R |
T499A |
TL499A 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 |
| TL499ACP |
Pb-Free (RoHS) |
CU NIPDAU |
N/A for Pkg Type |
|
TL499ACP |
| TL499ACPE4 |
Pb-Free (RoHS) |
CU NIPDAU |
N/A for Pkg Type |
|
TL499ACPE4 |
| TL499ACPSR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
|
TL499ACPSR |
| TL499ACPSRE4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
|
TL499ACPSRE4 |
| TL499ACPSRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
|
TL499ACPSRG4 |
TL499A 应用技术支持与电子电路设计开发资源下载
- TL499A 数据资料 dataSheet 下载.PDF
- TI 德州仪器非隔离式开关 DC/DC 调节器选型与价格参考 . xls
- Dual MOSFET Driver
(PDF 498 KB)
- 全面认识开关型电源中的BUCK-BOOST功率级 (Rev. A)
(PDF 2206 KB)
- Understanding Boost Power Stages In Switchmode Power Supplies
(PDF 149 KB)
- Understanding Buck Power Stages In Switchmode Power Supplies
(PDF 173 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)