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參數(shù)資料
| 型號(hào)： | LTC4110EUHF |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 電源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC38 |
| 封裝： | 5 X 7 MM, 0.75 MM HEIGHT, PLASTIC, MO-220WHKD, QFN-38 |
| 文件頁數(shù)： | 32/52頁 |
| 文件大?。?/td> | 450K |
| 代理商： | LTC4110EUHF |
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LTC4110
38
4110fb
RSNS(BAT) = resistor between yback transformer and
battery
RCSP = RCSP1 + RCSP2
RCSN = RCSN1 + RCSN2
RICHG = resistor connected between ICHG pin and GND
RIPCC = resistor connected between IPCC pin and GND
RICAL = resistor connected between ICAL pin and GND.
If any programming resistor value on any of the three
pins exceeds 100k, see Flyback Compensation section
for more information.
Pins can be tied together to save components if any of
the currents have the same value. If two pins share a
common programming resistor greater than 100k, only
one compensation circuit is required.
If the TYPE pin is set for SLA/LEAD ACID, then the IPCC
pin is not used. You can leave the IPCC pin open.
PROGRAMMING BACKUP MODE ENTRY THRESHOLD
AND CALIBRATION MODE BACK-DRIVE VOLTAGE
DETECTION THRESHOLD
A resistor divider connected to supply input sets both the
backup mode entry threshold and the calibration mode
back-drive voltage detection threshold.
VBACKUP =
R2
R1
+ 1 VBGR
VBACKDRIVE =
VOVP
VBGR
VBACKUP
R2
R1
=
VBACKUP
VBGR
1
where:
VBACKUP = supply voltage when backup starts, it should
not be programmed to less than 4.5V
VBACKDRIVE=supplyvoltagewhencalibrationisterminated,
it should not be programmed to more than 20V
VOVP= DCDIV pin back-drive detect threshold in calibration
mode, typically 1.5V (see VOVP)
oat voltage = 2.5V at 25°C with a temperature coefcient of
–2mV/°C, then R1 = 7256, k1 = 0.580, TCk1 = –10.3m/°C,
ΔVFLOAT = 2.5 – 2.35 = 0.15V, k2 = 0.162, k3 = 0.634.
PROGRAMMING CURRENT
Charge/calibration currents are programmed using the
following equations:
I
V
R
I
V
R
CHG
BGR
SNS BAT
CSP
ICHG
PCC
BGR
SNS B
=
()
(
A
AT
CSP
IPCC
CAL
BGR
SNS BAT
CSN
ICAL
R
I
V
R
)
()
=
where:
ICHG = bulk charge current
IPCC = preconditioning charge current
ICAL = calibration current
VBGR = 1.220V
APPLICATIONS INFORMATION
Figure 16. Lead Acid Temperature Compensation
4110 F16
RNTC
10k
–
+
–
+
(1 – k3) RVREF
k3 RVREF
R2
R2 + R3
R1
R2
R3
R0
R0 + R1
k2 =
k1 =
VREF
VCHG
THB
THA
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LTC4110EUHF#PBF | 功能描述:IC BATTERY BACKUP MANAGER 38-QFN RoHS:是 類別:集成電路 (IC) >> PMIC - 電池管理 系列:- 其它有關(guān)文件:STC3100 View All Specifications 特色產(chǎn)品:STC3100 - Battery Monitor IC 標(biāo)準(zhǔn)包裝:4,000 系列:- 功能:燃料，電量檢測計(jì)/監(jiān)控器 電池化學(xué):鋰離子（Li-Ion） 電源電壓:2.7 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-TSSOP，8-MSOP（0.118"，3.00mm 寬） 供應(yīng)商設(shè)備封裝:8-MiniSO 包裝:帶卷 (TR) 其它名稱:497-10526-2 |
| LTC4110EUHF#PBF | 制造商:Linear Technology 功能描述:Battery Management IC |
| LTC4110EUHF#TRPBF | 功能描述:IC BATTERY BACKUP MANAGER 38-QFN RoHS:是 類別:集成電路 (IC) >> PMIC - 電池管理 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:- 功能:電池監(jiān)控器 電池化學(xué):堿性，鋰離子，鎳鎘，鎳金屬氫化物 電源電壓:1 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SOT-23-6 供應(yīng)商設(shè)備封裝:SOT-6 包裝:帶卷 (TR) |
| LTC4110EUHF-PBF | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Battery Backup System Manager |
| LTC4110EUHF-TR | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Battery Backup System Manager |
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