TPS65231A2 用于数字机顶盒的电源管理 IC
TPS65231A2 描述
The TPS652x provides one PWM buck controller, two adjustable, synchronous buck regulators, two independent USB power switches and a supply voltage supervisor (SVS) to provide main power functions for satellite set top boxes, xDSL and cable modem applications operating off a single 12- to 22-V supply.
The SMPS have integrated switching FETs for optimized power efficiency and reduced external component count. Each USB switch provides up to 0.5-A (TPS65230) or 1-A (TPS65231) of current as required by downstream USB devices. All power blocks have thermal and over current/short circuit protection.
The SVS provides two inputs for monitoring positive supply rails. The active-low open-drain output remains low for at least 180 ms after all supply rails rise above their rising edge threshold
|
TPS65230 |
TPS65231A2 |
TPS65232A0 |
TPS65232A2 |
| Vin(Min)(V) |
10.8 |
10.8 |
10.8 |
10.8 |
| Vin(Max)(V) |
22 |
22 |
22 |
22 |
| Step-Down DC/DC Converter |
2 |
2 |
2 |
2 |
| Pin/Package |
48HTSSOP |
48HTSSOP |
40VQFN |
48HTSSOP |
| Topology |
Multi-Channel |
Multi-Channel |
Multi-Channel |
Multi-Channel |
| Regulated Outputs(#) |
3 |
3 |
3 |
3 |
| Step-Down DC/DC Controller |
1 |
1 |
1 |
1 |
TPS65231A2 特性
- Wide Input Supply Voltage Range
(10.8 V - 22 V)
- One Adjustable PWM Buck Controller
- 10.8-V – 22-V Input Voltage Range
- 3.3-V – 6.1-V Output Voltage Range
- 500kHz switching frequency
- Type III Compensation
- Programmable Current Limit
- Two Adjustable Step-Down Converter with
Integrated Switching FETs:
- 4.75-V - 5.5-V Input
- 0.9-V-3.3-V Output Voltage Range
- 3-A Output Current
- 1-MHz Switching Frequency
- Voltage Scaling Option
- Type III Compensation
- Two 100-mOhm, 0.5-A (TPS65230) 1-A (TPS65231)
USB Switches with Over Current Protection
and Open-Drain Fault Pin
- Early Supply Failure Flag (Open Drain Output)
is Set when Input Voltage Drops Below 9.3 V
- Early Temperature Warning Flag (Open Drain Output)
is Set if Temperature Approaches Shut-Down Threshold
- Supply Voltage Supervisor Circuit with Two
Monitor Inputs and Open Drain Output
- Parallel I/O or I2C Control with User Selectable
Address
Advanced Fault Detection and Output Voltage
Adjustment Options in I2C Mode
TPS65231A2 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 |
| TPS65230A2DCA |
ACTIVE |
0 to 85 |
3.40 | 1ku |
HTSSOP (DCA) | 48 |
1000 | TUBE |
TPS65230
A2 |
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| TPS65230A2DCAR |
ACTIVE |
0 to 85 |
2.80 | 1ku |
HTSSOP (DCA) | 48 |
2000 | LARGE T&R |
TPS65230
A2 |
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TPS65231A2 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 |
| TPS65231A2DCA |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-3-260C-168 HR |
TPS65231A2DCA |
TPS65231A2DCA |
| TPS65231A2DCAR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-3-260C-168 HR |
TPS65231A2DCAR |
TPS65231A2DCAR |
TPS65231A2 应用技术支持与电子电路设计开发资源下载
- TPS65231A2 数据资料 dataSheet 下载.PDF
- TI 德州仪器应用处理器的集成电源管理产品选型与价格 . xls
TPS65231A2 相关工具
| 名称 |
型号 |
公司 |
工具/软件类型 |
| TPS65231A2 评估模块 |
TPS65231A2EVM |
Texas Instruments |
开发电路板/EVM |