參數(shù)資料
型號(hào): LTC4098EUDC-3.6#TRPBF
廠商: LINEAR TECHNOLOGY CORP
元件分類: 穩(wěn)壓器
英文描述: BATTERY CHARGE CONTROLLER, PQCC20
封裝: 3 X 4 MM, 0.75 MM HEIGHT, LEAD FREE, PLASTIC, QFN-20
文件頁(yè)數(shù): 17/32頁(yè)
文件大?。?/td> 1915K
代理商: LTC4098EUDC-3.6#TRPBF
LTC4098-3.6
409836f
By using a bias resistor, RNOM, different in value from
R25, the hot and cold trip points can be moved in either
direction.Thetemperaturespanwillchangesomewhatdue
to the nonlinear behavior of the thermistor. The following
equations can be used to easily calculate a new value for
the bias resistor:
R
NOM
HOT
NOM
cOLD
=
a
0 25
25
3 26
25
.
.
where
aHOT and aCOLD are the resistance ratios at the
desired hot and cold trip points. Note that these equations
Solving these equations for RNTC|COLD and RNTC|HOT
results in the following:
RNTC|HOT = 0.25 RNOM
and
RNTC|COLD = 3.26 RNOM
By setting RNOM equal to R25, the previous equations
result in
aHOT = 0.25 and aCOLD = 3.26. Referencing
these ratios to the Vishay Resistance-Temperature curve
1 chart gives a hot trip point of about 60°C and a cold trip
point of about 0°C. The difference between the hot and
cold trip points is approximately 60°C.
+
+
RNOM
100k
RNTC
100k
NTC
0.1V
NTC_ENABLE
409836 F09a
LTC4098-3.6 NTC BLOCK
TOO_COLD
TOO_HOT
0.765 NTCBIAS
0.199 NTCBIAS
+
5
NTCBIAS
4
T
+
+
RNOM
102k
RNTC
100k
R1
8.06k
NTC
0.1V
NTC_ENABLE
409836 F09b
TOO_COLD
TOO_HOT
0.765 NTCBIAS
0.199 NTCBIAS
+
5
T
NTCBIAS
4
LTC4098-3.6 NTC BLOCK
(9a)
(9b)
Figure 9. NTC Circuits
applicaTions inFormaTion
相關(guān)PDF資料
PDF描述
LM3351MMX/NOPB SWITCHED CAPACITOR CONVERTER, 275 kHz SWITCHING FREQ-MAX, PDSO8
LM2576HV-3.3BT-LB03 3.5 A SWITCHING REGULATOR, 52 kHz SWITCHING FREQ-MAX, PSFM5
LH0071-0H-MIL 1-OUTPUT THREE TERM VOLTAGE REFERENCE, 10.24 V, MBCY3
LM4041DIM3-ADJT&R 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 1.233 V, PDSO3
LS4301-9PD8TB1 1-OUTPUT 100 W AC-DC PWR FACTOR CORR MODULE
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LTC4099 制造商:LINER 制造商全稱:Linear Technology 功能描述:I2C Controlled USB Power Manager/Charger with Overvoltage Protection
LTC4099EPDC#PBF 功能描述:IC USB PWR MANAGER/CHRGR 20UTQFN RoHS:是 類別:集成電路 (IC) >> PMIC - 電池管理 系列:PowerPath™ 標(biāo)準(zhǔn)包裝:1 系列:- 功能:充電管理 電池化學(xué):鋰離子(Li-Ion)、鋰聚合物(Li-Pol) 電源電壓:3.75 V ~ 6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SC-74A,SOT-753 供應(yīng)商設(shè)備封裝:SOT-23-5 包裝:剪切帶 (CT) 產(chǎn)品目錄頁(yè)面:669 (CN2011-ZH PDF) 其它名稱:MCP73831T-2ACI/OTCT
LTC4099EPDC#TRMPBF 制造商:Linear Technology 功能描述:
LTC4099EPDC#TRPBF 功能描述:IC USB PWR MANAGER/CHRGR 20UTQFN RoHS:是 類別:集成電路 (IC) >> PMIC - 電池管理 系列:PowerPath™ 標(biāo)準(zhǔn)包裝:1 系列:- 功能:充電管理 電池化學(xué):鋰離子(Li-Ion)、鋰聚合物(Li-Pol) 電源電壓:3.75 V ~ 6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SC-74A,SOT-753 供應(yīng)商設(shè)備封裝:SOT-23-5 包裝:剪切帶 (CT) 產(chǎn)品目錄頁(yè)面:669 (CN2011-ZH PDF) 其它名稱:MCP73831T-2ACI/OTCT
LTC4099EPDC-PBF 制造商:LINER 制造商全稱:Linear Technology 功能描述:I2C Controlled USB Power Manager/Charger with Overvoltage Protection