BQ29414 用于 2、3 或 4 节锂电池第 2 级保护的电压保护
BQ29414 描述
The bq2941x is a secondary overvoltage protection IC for 2-, 3-, or 4-cell lithium-ion battery packs that incorporates a high-accuracy precision overvoltage detection circuit. It includes a programmable delay circuit for overvoltage detection time.
|
BQ29410 |
BQ29411 |
BQ29412 |
BQ29413 |
BQ29414 |
BQ29415 |
BQ29419 |
| Cells Protected |
2, 3, 4 |
2, 3, 4 |
2, 3, 4 |
2, 3, 4 |
2, 3, 4 |
2, 3, 4 |
2, 3, 4 |
| Overvoltage Threshold(V) |
4.35 |
4.40 |
4.45 |
4.5 |
4.55 |
4.6 |
4.30 |
| Protection FETs |
External |
External |
External |
External |
External |
External |
External |
| Shutdown Current(uA) |
2 |
2 |
2 |
2 |
2 |
2 |
2 |
| Pin/Package |
8SM8, 8TSSOP |
8SM8, 8TSSOP |
8SM8, 8TSSOP |
8SM8, 8TSSOP |
8SM8, 8TSSOP |
8SM8, 8TSSOP |
8TSSOP |
| Approx. Price (US$) |
0.45 | 1ku |
0.45 | 1ku |
0.45 | 1ku |
0.45 | 1ku |
0.45 | 1ku |
0.45 | 1ku |
0.45 | 1ku |
BQ29414 特性
- 2-, 3-, or 4-Cell SecondaryProtection
- Low Power Consumption ICC < 2 µA [VCELL(ALL) < V(PROTECT)]
- Fixed High Accuracy Overvoltage Protection Threshold
- bq29410 = 4.35 V
- bq29411 = 4.40 V
- bq29412 = 4.45 V
- bq29413 = 4.50 V
- bq29414 = 4.55 V
- BQ29415 = 4.60 V
- BQ29419 = 4.30 V
- Programmable Delay Time of Detection
- High Power Supply Ripple Rejection
- Stable During Pulse Charge Operation
- APPLICATIONS
- 2nd-Level Overvoltage Protection in Li-Ion Battery Packs in:
- Notebook Computers
- Portable Instrumentation
- Portable Equipment
BQ29414 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 |
| BQ29414DCTR |
ACTIVE |
-40 to 110 |
0.45 | 1ku |
SM8 (DCT) | 8 |
3000 | LARGE T&R |
|
| BQ29414DCTRG4 |
ACTIVE |
-40 to 110 |
0.45 | 1ku |
SM8 (DCT) | 8 |
3000 | LARGE T&R |
|
| BQ29414DCTT |
ACTIVE |
-40 to 110 |
0.55 | 1ku |
SM8 (DCT) | 8 |
250 | SMALL T&R |
|
| BQ29414DCTTG4 |
ACTIVE |
-40 to 110 |
0.55 | 1ku |
SM8 (DCT) | 8 |
250 | SMALL T&R |
|
| BQ29414PW |
ACTIVE |
-40 to 110 |
0.55 | 1ku |
TSSOP (PW) | 8 |
150 | TUBE |
|
| BQ29414PWG4 |
ACTIVE |
-40 to 110 |
0.55 | 1ku |
TSSOP (PW) | 8 |
150 | TUBE |
|
| BQ29414PWR |
ACTIVE |
-40 to 110 |
0.45 | 1ku |
TSSOP (PW) | 8 |
2000 | LARGE T&R |
|
| BQ29414PWRG4 |
ACTIVE |
-40 to 110 |
0.45 | 1ku |
TSSOP (PW) | 8 |
2000 | LARGE T&R |
|
BQ29414 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 |
| BQ29414DCTR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
BQ29414DCTR |
BQ29414DCTR |
| BQ29414DCTRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
BQ29414DCTRG4 |
BQ29414DCTRG4 |
| BQ29414DCTT |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
BQ29414DCTT |
BQ29414DCTT |
| BQ29414DCTTG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
BQ29414DCTTG4 |
BQ29414DCTTG4 |
| BQ29414PW |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
BQ29414PW |
BQ29414PW |
| BQ29414PWG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
BQ29414PWG4 |
BQ29414PWG4 |
| BQ29414PWR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
BQ29414PWR |
BQ29414PWR |
| BQ29414PWRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
BQ29414PWRG4 |
BQ29414PWRG4 |
BQ29414 应用技术支持与电子电路设计开发资源下载
- BQ29414 数据资料 dataSheet 下载.PDF
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(PDF 1058 KB)
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- 高速数据转换 (PDF 1967 KB)
BQ29414 相关工具
