- 您现在的位置：买卖IC网 > PDF目录69521 > TPS65014RGZT (TEXAS INSTRUMENTS INC) 1-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC48 PDF资料下载
参数资料
| 型号： | TPS65014RGZT |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 电源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC48 |
| 封装： | 7 X 7 MM, GREEN, PLASTIC, VQFN-48 |
| 文件页数： | 13/57页 |
| 文件大小： | 1289K |
| 代理商： | TPS65014RGZT |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页当前第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页
www.ti.com
+
Pack+
Pack–
TEMP
Battery Pack
V(HTF)
V(LTF)
LTF
HTF
TS
I(TS)
bqTINY II
NTC
+
Pack+
Pack–
TEMP
Battery Pack
LTF
HTF
TS
bqTINY II
RT1
RT2
NTC
V(HTF)
V(LTF)
I(TS)
Battery Preconditioning
Battery Charge Current
TPS65014
SLVS551 – DECEMBER 2004
DETAILED DESCRIPTION (continued)
Figure 28. TS Pin Configuration
Figure 29. TS Pin Threshold
On power up, if the battery voltage is below the V(LOWV) threshold, the TPS65014 applies a precharge current,
I(PRECHG), to the battery. This feature revives deeply discharged cells. The charge current during this phase is one
tenth of the value in current regulation phase which is set with IO(out) = KSET × V(SET)/R(SET). The load current in
preconditioning phase must be lower than I(PRECHG) and must allow the battery voltage to rise above V(LOWV)
within t(Prechg). VBAT_A is the sense pin to the voltage comparator for the battery voltage. This allows a power-on
sense measurement if the VBAT_A and VBAT_B pins are connected together at the battery.
The TPS65014 activates a safety timer, t(PRECHG), during the conditioning phase. If V(LOWV) threshold is not
reached within the timer period, the TPS65014 turns off the charger and indicates the fault condition in the
CHGSTATUS register. In the case of a fault condition, the TPS65014 reduces the current to I(DETECT). I(DETECT)is
used to detect a battery replacement condition. Fault condition is cleared by POR or battery replacement or via
the serial interface.
TPS65014 offers on-chip current regulation. When charging from an ac adapter, a resistor connected between
the ISET1 and AGND pins determines the charge rate. A maximum of 1-A charger current from the ac adapter is
allowed. When charging from a USB port either a 100-mA or 500-mA charge rate can be selected via the serial
interface; default is 100 mA maximum. Two bits are available in the CHGCONFIG register in the serial interface
to reduce the charge current in 25% steps. These only influence charging from the ac input and may be of use if
charging is often suspended due to excessive junction temperature in the TPS65014 (e.g., at high ac input
voltages) and low battery voltages.
20
相关PDF资料 |
PDF描述 |
|---|---|
| TPS65020RHAR | 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PQCC40 |
| TPS65021RHAR | 3-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC40 |
| TPS65021RHA | 3-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC40 |
| TPS65021RHAT | 3-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC40 |
| TPS650231RSB | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC40 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| TPS65014RGZT | 制造商:Texas Instruments 功能描述:POWER M 2.5~6V FOR LI ION P 48QFN 制造商:Texas Instruments 功能描述:POWER M, 2.5~6V, FOR LI ION P, 48QFN |
| TPS65014RGZTG4 | 功能描述:电池管理 Li-Ion Powered Systems RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel |
| TPS65020ARHAR | 制造商:Texas Instruments 功能描述: |
| TPS65020ARHAT | 制造商:Texas Instruments 功能描述: |
| TPS65020EVM-110 | 功能描述:电源管理IC开发工具 TPS65020-110 Eval Mod RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
发布紧急采购，3分钟左右您将得到回复。