ltc4264cde-trpbf Linear Technology Corporation, ltc4264cde-trpbf Datasheet - Page 24

• Manufacturer Part Number: ltc4264cde-trpbf
• Description: High Power Pd Interface Controller With 750ma Current Limit
• Manufacturer: Linear Technology Corporation

RELATED PARTS
LTC4264
TYPICAL APPLICATION
POWER
PART NUMBER
LT
LTC3803
LTC3805
LTC3825
LTC4257-1
LTC4258
LTC4259A-1
LTC4263
LTC4263-1
LTC4267
Burst Mode is a registered trademark of Linear Technology Corporation. No R
24
FROM
HIGH
®
PSE
SS-6488-NF-K1
1952
IN
36V TO 57V
PD IN
0.01µF
J1
200V
1
2
3
6
4
5
7
8
C13
75Ω
R4
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone]
AC ADAPTER
30W
24V
R5
75Ω
C14
0.01µF
200V
DESCRIPTION
Single Switch Synchronous Forward Counter
Current Mode Flyback DC/DC Controller in ThinSOT
Adjustable Frequency Current Mode Flyback Controller
Isolate No-Opto Synchronous Flyback Controller with
Wide Input Supply Range
IEEE 802.3af PD Interface Controller
Quad IEEE 802.3af Power over Ethernet Controller
Quad IEEE 802.3af Power over Ethernet Controller
Single IEEE 802.3af Power over Ethernet Controller
High Power Single PSE Controller
IEEE 802.3af PD Interface with an Integrated Switching
Regulator
+
–
0.01µF
●
200V
C17
1000pF
2kV
FAX: [phone]
C15
75Ω
R6
14
13
12
11
10
R7
75Ω
9
C16
0.01µF
200V
T3 ETH1-230LD
•
•
•
•
●
www.linear.com
•
•
•
•
B2100 4 PLCS
•
•
•
•
LTC4264 with Auxiliary Supply
1
2
3
4
5
6
D3
D2
TO
PHY
D7
D6
B2100 4 PLCS
D4
D5
TM
SENSE
D8
D9
COMMENTS
Synchronous Controller, Programmable Volt-Sec Clamp, Low Start Current
200kHz Constant Frequency, Adjustable Slope Compensation, Optimized
for High Input Voltage Applications
Slope Comp Overcurrent Protect, Internal/External Clock
Adjustable Switching Frequency, Programmable Undervoltage Lockout,
Accurate Regulation without Trim, Synchronous for High Effi ciency
100V 400mA Internal Switch, Programmable Classifi cation Dual
Current Limit
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
AC or DC Disconnect IEEE-Compliant PD Detection and Classifi cation,
Autonomous Operation or I
Internal Switch, Autonomous Operation, 30W
100V 400mA Internal Switch, Programmable Classifi cation, 200kHz
Constant Frequency PWM, Interface and Switcher Optimized for IEEE-
Compliant PD System
and ThinSOT are trademarks of Linear Technology Corporation.
R14
100k
R18
100k
D1
SMAJ58A
Q5
FMMT23
R21
100k
R
22.1Ω
CLASS
C8
0.1µF
100V
1%
2
2
2
C
C Control
C Control
TM
Control
1
2
3
4
5
6
SHDN
NC
R
I
V
V
LIM_EN
CLASS
IN
IN
© LINEAR TECHNOLOGY CORPORATION 2007
LTC4264
NC
PWRGD
PWRGD
13
V
V
GND
OUT
OUT
NC
12
11
10
9
8
7
D15 B2100
D12 B2100
LT 0307 • PRINTED IN USA
R12
100k
+
C5
12µF
100V
V
OUT TO DC/DC
CONVERTER
PWRGD
V
OUT
OUT
–
+
4264f