ltc4269cdkd-2 Linear Technology Corporation, ltc4269cdkd-2 Datasheet - Page 4

• Manufacturer Part Number: ltc4269cdkd-2
• Description: Ieee 802.3at High Power Pd And Synchronous Forward Controller With Aux Support
• Manufacturer: Linear Technology Corporation

PARAMETER
SD_V
SD_V
V
V
V
V
Output Voltage
Line Regulation
Load Regulation
Oscillator
Frequency, f
f
f
SYNC Input Resistance
SYNC Switching Threshold
SYNC Frequency/f
f
V
Error Amplifi er
FB Reference Voltage
FB Input Bias Current
Open-Loop Voltage Gain
Unity-Gain Bandwidth
COMP Source Current
COMP Sink Current
COMP Current (Disabled)
COMP High Level V
COMP Active Threshold
COMP Low Level V
Current Sense
I
I
I
OC Threshold
OC Input Current
Default Blanking Time
Adjustable Blanking Time
V
SOUT Driver
SOUT Clamp Voltage
SOUT Low Level
LTC4269-2
ELECTRICAL CHARACTERISTICS
4
temperature range, otherwise specifi cations are at T
OSC(MIN)
OSC(MAX)
OSC
SENSE
SENSE
SENSE
IN(ON)
IN(OFF)
IN(HYST)
REF
ROSC
BLANK
Line Regulation
SEC(ON)
SEC(OFF)
Maximum Threshold
Input Current (Duty Cycle = 0%)
Input Current (Duty Cycle = 80%)
OSC
Current
Current
OSC
OL
OH
CONDITIONS
SD_V
SD_V
I
I
0mA < I
R
R
R
FB = 1V
FB = 1V (Note 14)
R
R
10V < V
FB = FB Reference Voltage
V
(Note 15)
FB = 1V, COMP = 1.6V
COMP = 1.6V
FB = V
FB = 1V, I
FB = 1V, SOUT Duty Cycle > 0%
I
COMP = 2.5V, FB =1V
COMP = 2.5V, FB = 1V (Note 12)
COMP = 2.5V, FB = 1V (Note 12)
COMP = 2.5V, FB = 1V
(OC = 100mV)
COMP = 2.5V, FB = 1V, R
COMP = 2.5V, FB = 1V, R
I
I
VREF
VREF
COMP
GATE
GATE
OL
OSC
OSC
OSC
OSC
OSC
+ 0.2V < COMP < V
= 25mA
A
SEC
SEC
= 0
= 0, 10V < V
= 178k, FB = 1V, SS_MAXDC = 1.84V
= 365k, FB = 1V
= 64.9k, COMP = 2.5V, SD_V
= 178k; 10V < V
Pin Voltage
= 0μA, COMP = 2.5V, FB = 1V
REF
= 250μA
= 25°C.
VREF
IN
COMP
= SD_V
= SD_V
, COMP = 1.6V
< 25V, V
< 2.5mA
The
= –250μA
SEC
SEC
l
IN
OL
< 25V
denotes the specifi cations which apply over the full operating
Threshold +100mV
Threshold – 100mV
+ 0.2V < COMP < V
IN
OH
< 25V, SS_MAXDC = 1.84V
BLANK
BLANK
– 0.2
= 40k (Note 16)
= 120k
SEC
= 2.64V
OH
– 0.2
l
l
l
l
l
l
2.425
1.201
10.54
MIN
3.75
165
440
197
8.3
2.7
0.7
80
65
–4
18
98
4
14.25
1.226
8.75
1.25
0.05
0.15
TYP
200
100
500
220
–35
107
–50
180
540
-75
5.5
2.5
1.5
3.2
0.8
0.5
10
18
85
–9
10
23
–8
12
0
1
1
1
3
1
15.75
2.575
1.250
–100
MAX
11.7
9.25
0.33
-200
13.5
0.75
240
120
560
243
116
7.0
2.2
1.5
0.4
10
10
28
UNITS
42692f
MHz
%/V
kHz
kHz
kHz
mV
mV
mA
mA
mV
mV
kΩ
μA
μA
nA
dB
μA
μA
μA
nA
ns
ns
V
V
V
V
V
V
V
V
V
V
V
V
V