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參數(shù)資料
| 型號： | DC1561A |
| 廠商： | Linear Technology |
| 文件頁數(shù)： | 38/42頁 |
| 文件大小： | 0K |
| 描述： | EVAL BOARD FOR LTC4278 |
| 設(shè)計(jì)資源： | DC1561A Design Files |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 主要目的： | 電源管理，以太網(wǎng)供電（POE） |
| 嵌入式： | 否 |
| 已用 IC / 零件： | LTC4278 |
| 已供物品： | 板 |
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LTC4278
5
4278fc
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: Pins with 100V absolute maximum guaranteed for T ≥ 0°C,
otherwise 90V.
Note 3: Active high PWRGD internal clamp self-regulates to 14V with
respect to VNEG.
Note 4: All voltages are with respect to VPORTN pin unless otherwise noted.
Note 5: Input voltage specifications are defined with respect to LTC4278
pins and meet IEEE 802.3af/at specifications when the input diode bridge
is included.
Note 6: Signature resistance is measured via the V/I method with the
minimum V of 1V. The LTC4278 signature resistance accounts for the
additional series resistance in the input diode bridge.
Note 7: An invalid signature after the 1st classification event is mandated
by the IEEE802.3at standard. See the Applications Information section.
Note 8: Class accuracy is with respect to the ideal current defined as
1.237/RCLASS and does not include variations in RCLASS resistance.
Note 9: This parameter is assured by design and wafer level testing.
Note 10: VCC = 14V; PG, SG Open; VCMP = 1.4V, VSENSE– = 0V, RCMP = 1k,
RtON = 90k, RPGDLY = 27.4k, RENDLY = 90k, unless otherwise specified. All
voltages are with respect to GND.
Note 11: Supply current does not include gate charge current to the
MOSFETs. See the Applications Information section.
Note 12: Component value range guaranteed by design.
ELECTRICAL CHARACTERISTICS The
l
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C.
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Load Compensation
Load Compensation to VSENSE Offset
Voltage
VRCMP with VSENSE+ = 0V
0.8
mV
Feedback Pin Load Compensation Current
VSENSE+ = 20mV, VFB = 1.230V
20
A
UVLO Function
UVLO Pin Threshold (VUVLO)
l
1.215
1.240
1.265
V
UVLO Pin Bias Current
VUVLO = 1.2V
VUVLO = 1.3V
–0.25
–4.50
0.1
–3.4
0.25
–2.50
A
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| DC1561B | 功能描述:EVAL BOARD FOR LTC4278 RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 評估演示板和套件 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 主要目的:數(shù)字電位器 嵌入式:- 已用 IC / 零件:AD5258 主要屬性:- 次要屬性:- 已供物品:板 相關(guān)產(chǎn)品:AD5258BRMZ1-ND - IC POT DGTL I2C1K 64P 10MSOPAD5258BRMZ10-ND - IC POT DGTL I2C 10K 64P 10MSOPAD5258BRMZ100-ND - IC POT DGTL I2C 100K 64P 10MSOPAD5258BRMZ50-ND - IC POT DGTL I2C 50K 64P 10MSOPAD5258BRMZ1-R7-ND - IC POT DGTL I2C 1K 64P 10MSOPAD5258BRMZ10-R7-ND - IC POT DGTL I2C 10K 64P 10MSOPAD5258BRMZ50-R7-ND - IC POT DGTL I2C 50K 64P 10MSOPAD5258BRMZ100-R7-ND - IC POT DGTL I2C 100K 64P 10MSOP |
| DC1561W | 制造商:Aleph America Corporation 功能描述: |
| DC1561W-COM | 制造商:Aleph America Corporation 功能描述: |
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| DC1562A-B | 功能描述:BOARD EVAL LTC6991 RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 評估演示板和套件 系列:TimerBlox® 標(biāo)準(zhǔn)包裝:1 系列:- 主要目的:電信，線路接口單元（LIU） 嵌入式:- 已用 IC / 零件:IDT82V2081 主要屬性:T1/J1/E1 LIU 次要屬性:- 已供物品:板，電源，線纜，CD 其它名稱:82EBV2081 |
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