VPORTN with Respect to VPORTP
參數(shù)資料
型號(hào)： DC804A-B
廠商： Linear Technology
文件頁(yè)數(shù)： 12/32頁(yè)
文件大?。?/td> 0K
描述： EVAL BOARD FOR LTC4267
設(shè)計(jì)資源： DC804A Design File
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： LTC4267
已供物品： 板
LTC4267
2
4267fc
VPORTN with Respect to VPORTP Voltage...0.3V to –100V
POUT, SIGDISA, PWRGD
Voltage..................... VPORTN + 100V to VPORTN –0.3V
PVCC to PGND Voltage (Note 2)
Low Impedance Source ........................... – 0.3V to 8V
Current Fed .......................................... 5mA into PVCC
RCLASS Voltage.................VPORTN + 7V to VPORTN – 0.3V
PWRGD Current.....................................................10mA
RCLASS Current.....................................................100mA
NGATE to PGND Voltage ...........................– 0.3V to PVCC
VFB, ITH/RUN to PGND Voltages................–0.3V to 3.5V
ORDER PART
NUMBER
DFN PART*
MARKING
Consult LTC Marketing for parts specied with wider operating temperature ranges. *The temperature grades are identied by a label on the shipping container.
4267
LTC4267CDHC
LTC4267IDHC
(Note 1)
The ● denotes the specications which apply over the full operating
temperature range, otherwise specications are at TA = 25°C. (Note 3)
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VPORTN
Supply Voltage
Voltage with Respect to VPORTP Pin
Maximum Operating Voltage
(Notes 4, 5, 6)
●
– 57
V
Signature Range
●
– 1.5
– 9.5
V
Classication Range
●
– 12.5
– 21
V
UVLO Turn-On Voltage
●
– 34.8
– 36.0
– 37.2
V
UVLO Turn-Off Voltage
●
– 29.3
– 30.5
– 31.5
V
VTURNON
PVCC Turn-On Voltage
Voltage with Respect to PGND
●
7.8
8.7
9.2
V
VTURNOFF
PVCC Turn-Off Voltage
Voltage with Respect to PGND
●
4.6
5.7
6.8
V
VHYST
PVCC Hysteresis
VTURNON – VTURNOFF
●
1.5
3.0
V
VCLAMP1mA
PVCC Shunt Regulator Voltage
IPVCC = 1mA, VITH/RUN = 0V, Voltage
●
8.3
9.4
10.3
V
with Respect to PGND
SENSE to PGND Voltage .............................. – 0.3V to 1V
NGATE Peak Output Current (<10μs) ..........................1A
Operating Ambient Temperature Range
LTC4267C ................................................ 0°C to 70°C
LTC4267I .............................................– 40°C to 85°C
Junction Temperature
GN Package ...................................................... 150°C
DHC Package .................................................... 125°C
Storage Temperature Range...................– 65°C to 150°C
Lead Temperature (Soldering, 10 sec) .................. 300°C
ORDER PART
NUMBER
GN PART
MARKING
4267
4267I
LTC4267CGN
LTC4267IGN
TJMAX = 125°C, θJA = 43.5°C/W
EXPOSED PAD (PIN 17) MUST BE SOLDERED
TO ELECTRICALLY ISOLATED PCB HEAT SINK
TJMAX = 150°C, θJA = 90°C/W
16
15
14
13
12
11
10
9
17
1
2
3
4
5
6
7
8
TOP VIEW
DHC16 PACKAGE
16-LEAD (3mm
× 5mm) PLASTIC DFN
ITH/RUN
PGND
NGATE
PVCC
RCLASS
NC
VPORTN
NC
VFB
PGND
SENSE
VPORTP
SIGDISA
PWRGD
POUT
NC
TOP VIEW
GN PACKAGE
16-LEAD NARROW PLASTIC SSOP
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
PGND
ITH/RUN
NGATE
PVCC
RCLASS
NC
VPORTN
PGND
VFB
SENSE
VPORTP
SIGDISA
PWRGD
POUT
PGND
Order Options Tape and Reel: Add #TR Lead Free: Add #PBF
Lead Free Tape and Reel: Add #TRPBF Lead Free Part Marking: http://www.linear.com/leadfree/
ABSOLUTE
AXI U
RATI GS
W
WW
U
FOR ATIO
PACKAGE/ORDER I
UU
W
ELECTRICAL CHARACTERISTICS
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