TL1451A 具有宽输入电压范围的双路信道控制器
TL1451A 同类产品
- TPS5124 - 4.5 to 15V two channel DC/DC controller with internal MOSFET Drivers
- TPS51124 - 4.5 to 28V two channel DC/DC controller with internal MOSFET Drivers
|
TL1451A |
| Topology |
Buck, Boost, Flyback |
| Vin(Min)(V) |
3.6 |
| Vin(Max)(V) |
50 |
| Vout(Min)(V) |
1 |
| Vout(Max)(V) |
50 |
| Regulated Outputs(#) |
2 |
| Iout(Max)(A) |
3 |
| Switching Frequency(Max)(kHz) |
500 |
| Iq(Typ)(mA) |
1.7 |
| Pin/Package |
16PDIP, 16SO, 16SOIC, 16SSOP, 16TSSOP |
| Thermal Shutdown |
No |
| Vout2(Min)(V) |
1 |
| Vout2(Max)(V) |
50 |
| Iout2(A) |
3 |
| Rating |
Catalog |
| Duty Cycle(Max)(%) |
100 |
| Vdo(Typ)(mV) |
200 |
TL1451A 描述
The TL1451A incorporates on a single monolithic chip all the functions required in the construction of two pulse-width-modulation (PWM) control circuits. Designed primarily for power-supply control, the TL1451A contains an on-chip 2.5-V regulator, two error amplifiers, an adjustable oscillator, two dead-time comparators, undervoltage lockout circuitry, and dual common-emitter output transistor circuits.
The uncommitted output transistors provide common-emitter output capability for each controller. The internal amplifiers exhibit a common-mode voltage range from 1.04 V to 1.45 V. The dead-time control (DTC) comparator has no offset unless externally altered and can provide 0% to 100% dead time. The on-chip oscillator can be operated by terminating RT and CT.
TL1451A 特性
- Complete PWM Power Control Circuitry
- Completely Synchronized Operation
- Internal Undervoltage Lockout Protection
- Wide Supply Voltage Range
- Internal Short-Circuit Protection
- Oscillator Frequency...500 kHz Max
- Variable Dead Time Provides Control Over Total Range
- Internal Regulator Provides a Stable 2.5-V Reference Supply
- Available in Q-Temp Automotive
HighRel Automotive Applications
Configuration Control / Print Support
Qualification to Automotive Standards
TL1451A 芯片订购指南
| 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 |
| TL1451ACD |
ACTIVE |
-20 to 85 |
0.60 | 1ku |
SOIC (D) | 16 |
40 | TUBE |
TL1451AC |
| TL1451ACDBLE |
NRND |
-20 to 85 |
|
SSOP (DB) | 16 |
|
|
| TL1451ACDBR |
ACTIVE |
-20 to 85 |
0.55 | 1ku |
SSOP (DB) | 16 |
2000 | LARGE T&R |
T1451A |
| TL1451ACDBRG4 |
ACTIVE |
-20 to 85 |
0.55 | 1ku |
SSOP (DB) | 16 |
2000 | LARGE T&R |
T1451A |
| TL1451ACDG4 |
ACTIVE |
-20 to 85 |
0.60 | 1ku |
SOIC (D) | 16 |
40 | TUBE |
TL1451AC |
| TL1451ACDR |
ACTIVE |
-20 to 85 |
0.55 | 1ku |
SOIC (D) | 16 |
2500 | LARGE T&R |
TL1451AC |
| TL1451ACDRG4 |
ACTIVE |
-20 to 85 |
0.55 | 1ku |
SOIC (D) | 16 |
2500 | LARGE T&R |
TL1451AC |
| TL1451ACN |
ACTIVE |
-20 to 85 |
0.60 | 1ku |
PDIP (N) | 16 |
25 | TUBE |
TL1451ACN |
| TL1451ACNE4 |
ACTIVE |
-20 to 85 |
0.60 | 1ku |
PDIP (N) | 16 |
25 | TUBE |
TL1451ACN |
| TL1451ACNSR |
ACTIVE |
-20 to 85 |
0.55 | 1ku |
SO (NS) | 16 |
2000 | LARGE T&R |
TL1451A |
| TL1451ACNSRG4 |
ACTIVE |
-20 to 85 |
0.55 | 1ku |
SO (NS) | 16 |
2000 | LARGE T&R |
TL1451A |
| TL1451ACPW |
ACTIVE |
-20 to 85 |
0.60 | 1ku |
TSSOP (PW) | 16 |
90 | TUBE |
T1451A |
| TL1451ACPWG4 |
ACTIVE |
-20 to 85 |
0.60 | 1ku |
TSSOP (PW) | 16 |
90 | TUBE |
T1451A |
| TL1451ACPWLE |
OBSOLETE |
-20 to 85 |
|
TSSOP (PW) | 16 |
|
T1451A |
| TL1451ACPWR |
ACTIVE |
-20 to 85 |
0.55 | 1ku |
TSSOP (PW) | 16 |
2000 | LARGE T&R |
T1451A |
| TL1451ACPWRG4 |
ACTIVE |
-20 to 85 |
0.55 | 1ku |
TSSOP (PW) | 16 |
2000 | LARGE T&R |
T1451A |
| TL1451AQD |
ACTIVE |
-40 to 125 |
0.60 | 1ku |
SOIC (D) | 16 |
40 |
TL1451AQ |
| TL1451AQDG4 |
ACTIVE |
|
0.60 | 1ku |
SOIC (D) | 16 |
40 |
TL1451AQ |
| TL1451AQDR |
ACTIVE |
-40 to 125 |
0.60 | 1ku |
SOIC (D) | 16 |
2500 |
TL1451AQ |
| TL1451AQDRG4 |
ACTIVE |
|
0.60 | 1ku |
SOIC (D) | 16 |
2500 |
TL1451AQ |
TL1451A 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 |
| TL1451ACD |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
|
TL1451ACD |
| TL1451ACDBR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
|
TL1451ACDBR |
| TL1451ACDBRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
TL1451ACDBRG4 |
TL1451ACDBRG4 |
| TL1451ACDG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
TL1451ACDG4 |
TL1451ACDG4 |
| TL1451ACDR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
|
TL1451ACDR |
| TL1451ACDRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
TL1451ACDRG4 |
TL1451ACDRG4 |
| TL1451ACN |
Pb-Free (RoHS) |
CU NIPDAU |
N/A for Pkg Type |
|
TL1451ACN |
| TL1451ACNE4 |
Pb-Free (RoHS) |
CU NIPDAU |
N/A for Pkg Type |
|
TL1451ACNE4 |
| TL1451ACNSR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
|
TL1451ACNSR |
| TL1451ACNSRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
TL1451ACNSRG4 |
TL1451ACNSRG4 |
| TL1451ACPW |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
|
TL1451ACPW |
| TL1451ACPWG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
TL1451ACPWG4 |
TL1451ACPWG4 |
| TL1451ACPWR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
|
TL1451ACPWR |
| TL1451ACPWRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
TL1451ACPWRG4 |
TL1451ACPWRG4 |
| TL1451AQD |
TBD |
CU NIPDAU |
Level-1-220C-UNLIM |
|
TL1451AQD |
| TL1451AQDG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
TL1451AQDG4 |
TL1451AQDG4 |
| TL1451AQDR |
TBD |
CU NIPDAU |
Level-1-220C-UNLIM |
|
TL1451AQDR |
| TL1451AQDRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
TL1451AQDRG4 |
TL1451AQDRG4 |
TL1451A 应用技术支持与电子电路设计开发资源下载
- TL1451A 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)
TL1451A 工具与软件
| 名称 |
型号 |
公司 |
工具/软件类型 |
| 双 PWM 控制电路 |
TL1451AEVM-166 |
Texas Instruments |
开发电路板/EVM |
TL1451A 参考设计
| 说明 |
型号 |
公司 |
| 反向、LDO、降压和同步。 降压参考设计 |
PMP009 |
Texas Instruments |
| 同步 降压，两个输入电压 4.5-5.5V 的升压 多输出电压 3.3V、5V 和 12V |
PMP146 |
Texas Instruments |
| 输入电压为 6 至 15 V 的双路非同步降压、同步降压、负反向 |
PMP00-062 |
Texas Instruments |