參數(shù)資料
型號: TPS65820RSHT
廠商: TEXAS INSTRUMENTS INC
元件分類: 電源管理
英文描述: 8-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC56
封裝: 7 X 7 MM, GREEN, PLASTIC, QFN-56
文件頁數(shù): 43/98頁
文件大?。?/td> 2290K
代理商: TPS65820RSHT
Batteryvoltage,
V(BAT)
Charge
Complete
Status,
Charger
Off
Pre-
conditioning
Phase
Current
Regulation
Phase
VoltageRegulationand
ChargeTermination
Phase
PRE-CHARGE
CURRENT AND
TERMINATION
THRESHOLD
BatteryCurrent,
I(BAT)
VO(BATREG)
V(LOWV)
T(PRECHG)
T(CHG)
FAST-CHARGE
CURRENT
IO(BAT)
IO(PRECHG) , I(TERM)
DONE
BAT
ISET 1
I
/K
(OUT)
(SET)
OUT
ChargeVoltage
Loop
Battery
Switch
SystemVoltage
RegulationLoop
VREF
Thermal
Loop
VTJ
V
(OUT)
I
(BAT)
V
(BAT)
V
O(REG)
V
O(REG)
SLVS663B – MAY 2006 – REVISED APRIL 2008 .............................................................................................................................................................. www.ti.com
Figure 34. Typical Charge Cycle, Thermal Loop not Active
If the operating conditions cause the IC junction temperature to exceed 125
°C the charge cycle is modified, with
the activation of the integrated thermal control loop. The thermal control loop is activated when an internal
voltage reference, which is inversely proportional to the IC junction temperature, is lower than a fixed,
temperature-stable internal voltage. The thermal loop overrides the other charger control loops and reduces the
charge current until the IC junction temperature returns to 125
°C, effectively regulating the IC junction
temperature.
Figure 35. Voltage and Thermal Regulation Loops
48
Copyright 2006–2008, Texas Instruments Incorporated
Product Folder Link(s): TPS65820
相關PDF資料
PDF描述
TPS65820RSH 8-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC56
TRU050-GACHA-47M4570000 PHASE LOCKED LOOP, CDSO16
TRU050-GACNA-12M6240000 PHASE LOCKED LOOP, CDSO16
TRU050-GALNA-20M0000000 PHASE LOCKED LOOP, CDSO16
TRU050-GALNB-51M8400000 PHASE LOCKED LOOP, CDSO16
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