參數資料
型號： TPS65810RTQT
廠商： TEXAS INSTRUMENTS INC
元件分類： 電源管理
英文描述： 9-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC56
封裝： 8 X 8 MM, GREEN, PLASTIC, QFN-56
文件頁數： 48/99頁
文件大?。?/td> 2128K
代理商： TPS65810RTQT
www.ti.com
1
2
1
2
TIMERINTERNAL
CLOCKPERIOD
MUL
TIPLICA
TIONF
ACT
OR
V(SET1)V(ISET1)
V(SET)V(PRECHG)
,
CHARGE AND SYSTEM POWER MANAGEMENT — I
2C REGISTERS
SLVS658B – MARCH 2006 – REVISED FEBRUARY 2007
thermal loop are active AND the battery voltage is below the recharge threshold.
The TPS65810 dynamic timer function circuit monitors the voltage at pin ISET1 during pre-charge and fast
charge. When the charger is regulating the charge current, the voltage at pin ISET1 is regulated by the control
loops to either VSET or VPRECHG. If the thermal loop or DPPM loops are active, the voltage at pin ISET1 is lower
than VSET or VPRECHG, and the dynamic timer control circuit changes the safety timers clock period based on the
VSET/V(ISET1) ratio (fast charge) or VPRECHG/V(ISET1) ratio (pre-charge).
The maximum clock period is internally limited to twice the value of the programmed clock period, which is
defined by the resistor connected to TMR pin, as shown in the following figure:
Figure 37. Safety Timer Internal Clock Slowdown
The effective charge safety timer value can then be expressed as follows:
Effective pre-charge timeout = t(PRECHG) + t(PCHGADD)
Effective charge safety timeout = t(CHG) + t(CHGADD)
where the added timeout values, t(PCHGADD), t(CHGADD), are equal to the sum of all time periods when either the
thermal loop or DPPM loops were active. The maximum added timeout value is internally limited to 2
× t
(CHG) or 2
x t(PRECHG)
The I2C registers that control charger and power path related functions are shown below. The HEX address for
each register is shown by the register name, together with the R or W functionality for the register bits. Shaded
values indicate default initial power-up values. Note that the CHG_STAT register contents are valid only when
either AC or USB power are applied to the TPS65810. The output of linear regulator LDO_PM can be used as an
indicator of external input power detection; if LDO_PM is in regulation the CHG_STAT register contents are valid.
52
Copyright 2006–2007, Texas Instruments Incorporated
Product Folder Link(s): TPS65810 TPS65811
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相關代理商/技術參數
參數描述
TPS65810RTQTG4 功能描述:電池管理 Int Sgl-Cell Lit-Ion Batt & Pwr Mgmt IC RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel
TPS65811RTQR 功能描述:電池管理 Integr S-C Li-Ion RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel
TPS65811RTQRG4 功能描述:電池管理 Integr S-C Li-Ion RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel
TPS65811RTQT 功能描述:電池管理 Integr S-C Li-Ion RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel
TPS65811RTQTG4 功能描述:電池管理 Integr S-C Li-Ion RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel
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