ltc4267cgn-trpbf Linear Technology Corporation, ltc4267cgn-trpbf Datasheet - Page 32

• Manufacturer Part Number: ltc4267cgn-trpbf
• Description: Power Over Ethernet Ieee 802.3af Pd Interface With Integrated Switching Regulator
• Manufacturer: Linear Technology Corporation

RELATED PARTS
Burst Mode is a registered trademark of Linear Technology Corporation.
ThinSOT is a trademark of Linear Technology Corporation.
LTC4267
TYPICAL APPLICATION
PART NUMBER
LTC1737
LTC1871
LTC3803
LTC4257
LTC4257-1
LTC4258
LTC4259A
32
SPARE PAIR
DATA PAIR
FROM
FROM
–48V
–48V
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone]
**100µF CERAMIC + 470µF TANTALUM
*1µF CERAMIC + 4.7µF TANTALUM
DESCRIPTION
High Power Isolated Flyback Controller
Wide Input Range, No R
Flyback, Boost and SEPIC Controller
Current Mode Flyback DC/DC Controller in ThinSOT
IEEE 802.3af PD Interface Controller
IEEE 802.3af PD Interface Controller
with Dual Current Limit
Quad IEEE 802.3af Power over Ethernet Controller
Quad IEEE 802.3af Power over Ethernet Controller
(8 PLACES)
B1100
●
FAX: [phone]
0.1µF
High-Effi ciency Class 3 PD with 3.3V Isolated Power Supply
SENSE
45.3Ω
SMAJ58A
1%
●
TM
www.linear.com
Current Mode
MMSD4148
V
R
SIGDISA
V
PORTP
PORTN
CLASS
P
OUT
LTC4267
5µF*
MIN
PGND
I
PWRGD
TH
NGATE
SENSE
/RUN
P
VCC
V
FB
TM
MMSD4148
P
COMMENTS
Sense Output Voltage Directly from Primary Side Winding
Adjustable Switching Frequency, Programmable Undervoltage Lockout,
Optional Burst Mode
200kHz Constant Frequency, Adjustable Slope Compensation,
Optimized for High Input Voltage Applications
100V 400mA Internal Switch, Programmable Classifi cation
100V 400mA Internal Switch, Programmable Classifi cation,
Supports Legacy Applications
DC Disconnect Only, IEEE-Compliant PD Detection and Classifi cation,
Autonomous Operation or I
AC or DC Disconnect IEEE-Compliant PD Detection and Classifi cation,
Autonomous Operation or I
VCC
100k
220k
9.1V
10k
10k
4.7µF
MMTBA42
BAS516
220k
P
VCC
0.068Ω
2N7002
1%
®
BAS516
BAS516
330Ω
Si3440
Operation at Light Load
150pF
6.8k
P
2
2
C
C
VCC
TM
TM
510Ω
Control
Control
PS2911
© LINEAR TECHNOLOGY CORPORATION 2004
•
•
PA1136
PULSE
“Y” CAP
250VAC
2200pF
TLV431
•
LT 0107 REV C • PRINTED IN USA
SBM1040
10Ω
570µF**
33nF
470pF
500Ω
100k
1%
60.4k
1%
CHASSIS
4267 TA02
3.3V
2.6A
4267fc