参数资料
型号: LTC4264IDE#PBF
厂商: Linear Technology
文件页数: 19/24页
文件大小: 0K
描述: IC CNTRLR PD INTERFACE 12-DFN
产品培训模块: Power over Ethernet
标准包装: 91
控制器类型: 以太网供电控制器(POE)
接口: IEEE 802.3af
电流 - 电源: 3mA
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 12-WFDFN 裸露焊盘
供应商设备封装: 12-DFN(4x3)
包装: 管件
LTC4264
4
4264f
TYPICAL PERFORMANCE CHARACTERISTICS
Input Current vs Input Voltage
25k Detection Range
Input Current vs Input Voltage
Signature Resistance
vs Input Voltage
Class Operation vs Time
On Resistance vs Temperature
Active Low PWRGD
Output Low Voltage vs Current
Current Limit vs Input Voltage
Active High PWRGD
Output Low Voltage vs Current
INPUT VOLTAGE (V)
0
INPUT
CURRENT
(mA)
0.1
0.2
0.3
0.4
0.5
–2
–4
–6
–8
4264 G01
–10
TA = 25°C
INPUT VOLTAGE (V)
0
INPUT
CURRENT
(mA)
20
40
60
80
100
–10
– 20
–30
*OPTIONAL CLASS CURRENT
–40
4264 G02
–50
–60
TA = 25°C
CLASS 5*
CLASS 4
CLASS 3
CLASS 2
CLASS 1
CLASS 0
INPUT VOLTAGE (V)
–12
9.0
INPUT
CURRENT
(mA)
9.5
10.5
11.0
11.5
–14
–16
4264 G03
10.0
–18
–20
–22
12.0
85
°C
–40
°C
CLASS 1 OPERATION
INPUT VOLTAGE (V)
–1
22
V1:
V2:
SIGNATURE
RESISTANCE
(k
)
23
25
26
27
–3
–5
4264 G04
24
–7
–9
–6
–10
–2
–4
–8
28
RESISTANCE =
DIODES: HD01
TA = 25°C
=
V
I
V2 – V1
I2 – I1
IEEE UPPER LIMIT
IEEE LOWER LIMIT
LTC4264 + 2 DIODES
LTC4264 ONLY
INPUT
VOLTAGE
10V/DIV
CLASS
CURRENT
20mA/DIV
TIME (10
s/DIV)
4264 G05
TA = 25°C
JUNCTION TEMPERATURE (
°C)
–50
0
RESISTANCE
(
)
0.2
0.4
0.6
0.8
1.0
–25
025
50
4264 G06
75
100
CURRENT (mA)
0
V
PWRGD_OUT
V
IN
(V)
2
3
8
4264 G07
1
0
2
4
6
10
4
TA = 25°C
INPUT VOLTAGE (V)
–40
200
CURRENT
LIMIT
(mA)
400
600
800
–40
°C
–40
°C
85
°C
85
°C
–45
–50
4264 G09
–55
–60
HIGH CURRENT MODE
LOW CURRENT MODE
IIN (mA)
0
PWRGD
(V)
0.4
1.0
0.5
1
4264 G08
0.2
0.8
0.6
1.5
2
TA = 25°C
GND – VOUT = 4V
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