LTC4259CGW Linear Technology, LTC4259CGW Datasheet - Page 32

• Manufacturer Part Number: LTC4259CGW
• Manufacturer: Linear Technology

Specifications of LTC4259CGW

• Linear Misc Type: Negative Voltage
• Operating Supply Voltage (typ): -48V
• Operating Supply Voltage (max): -57V
• Operating Temperature (min): 0C
• Operating Temperature (max): 70C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Pin Count: 36
• Lead Free Status / Rohs Status: Not Compliant

TYPICAL APPLICATIO
LTC4259
32
RELATED PARTS
PART NUMBER
LT1619
LTC1694
LTC4255
LTC4257
LTC4258
SMBELRT
SDA
GND CPU
V
SCL
DD
D
D
D
C
L1: PULSE ENG PO473
Q1: FAIRCHILD IRFM120A
R
T1: PULSE ENG H2009
U1: FAIRCHILD NC7WZ17
U2, U3: AGILENT HCPL-063L
DET
AC
DET
TSS
S
: TWO 1% 1 RESISTORS IN PARALLEL
CPU
: DIODES INC OR FAIRCHILD S1B
: DIODES INC BAV19WS
: DIODES INC SMAJ58A
: TDK C3225X7R2A224M
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone] FAX: [phone]
DESCRIPTION
Low Voltage Current Mode PWM Controller
SMBus/I
Quad Network Power Controller
IEEE 802.3af PD Interface Controller
Quad Power Over Ethernet Controller
U1
0.1 F
200
200
2
C Accelerator
Figure 20. One Complete Isolated Powered Ethernet Channel
HCPL-063L
HCPL-063L
U
www.linear.com
U3
U2
200
200
2k
2k
0.1 F
ISOLATED
3.3V
ISOLATED
COMMENTS
Internal Switch, Programmable Classification
Non-IEEE 802.3af Compliant Current Levels
DC Disconnect Only
–48V
(NETWORK
PHYSICAL
V
OSCIN
SCL
SDAIN
SDAOUT
INT
V
DD
LAYER
CHIP)
EE
PHY
DGND
0.5
R
S
SENSE GATE OUT
LTC4259
1/4
IRFM120
AGND
Q1
DETECT
1:1
1:1
T1
T1
10k
1/2 PULSE
BAV19WS
H2009
S1B
D
D
AC
DET
ISOLATED
R
1k
DET
GND
0.1 F
LINEAR TECHNOLOGY CORPORATION 2003
C
0.22 F
100V
X7R
DET
0.01 F
0.01 F
200V
200V
LT/TP 0803 1K • PRINTED IN USA
75
75
0.47 F
1k
D
58V
SMAJ58A
TSS
2V
OSCILLATOR
P-P
75
75
1000pF
2000V
, 100Hz
0.01 F
0.01 F
200V
200V
L1
CONNECTOR
4259i
4258 F20
RJ45
1
2
3
4
5
6
7
8