The PTB4851x series of isolated DC/DC converter modules produce a complementary pair of regulated supply voltages for powering line-driver devices in xDSL telecom applications. The modules operate from a standard telecom (–48 V) central office (CO) supply and can provide up to a 72 W of power in a balanced load configuration.
The A-suffix module (±5 V) is designed to power the line driver devices for the AC-7 ADSL chipset. Other voltage options powers other analog applications requiring a complementary supply with relatively balanced loads.o
Both the PTB48510 and PTB48511 include an "on/off" enable control, output current limit, over-temperature protection, and input under-voltage lockout (UVLO).
| PTB48511B | |
| Vin(Min)(V) | 36 |
| Vin(Max)(V) | 75 |
| PO(W) | 72 |
| Iout(Max)(A) | 3 |
| Pin/Package | 8Surface Mount Module, 8Through-Hole Module |
| Operating Temperature Range(°C) | -40 to 85 |
| Regulated Outputs(#) | 2 |
| 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 |
| PTB48511BAH | ACTIVE | -40 to 85 | 38.00 | 1ku | Through-Hole Module (ERK) | 8 | 9 | TIW TRAY | |
| PTB48511BAS | ACTIVE | -40 to 85 | 38.00 | 1ku | Surface Mount Module (ERL) | 8 | 9 | TIW TRAY | |
| PTB48511BAZ | ACTIVE | -40 to 85 | 38.00 | 1ku | Surface Mount Module (BRL) | 8 | 9 | TIW TRAY |
| 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 |
| PTB48511BAH | Pb-Free (RoHS) | Call TI | N/A for Pkg Type | PTB48511BAH | PTB48511BAH |
| PTB48511BAS | TBD | Call TI | Level-1-235C-UNLIM/Level-3-260C-168HRS | PTB48511BAS | PTB48511BAS |
| PTB48511BAZ | Pb-Free (RoHS) | Call TI | Level-3-260C-168 HR | PTB48511BAZ | PTB48511BAZ |
