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参数资料
| 型号： | PT4801C |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 电源模块 |
| 英文描述： | 3-OUTPUT 25 W DC-DC REG PWR SUPPLY MODULE |
| 封装： | SIP-15 |
| 文件页数： | 1/9页 |
| 文件大小： | 183K |
| 代理商： | PT4801C |
For technical support and more information, see inside back cover or visit www.ti.com
DSL Triple Outputs:
+15V, +3.3V, +1.5V
(Independantly Regulated)
Input Voltage Range:
36V to 75V
1500VDC Isolation
On/Off “Standby” Control
Current Limit
Short Circuit Protection
(All Outputs)
Features
Ordering Information
PT4801
o = +15/+3.3/+1.5 Volts
Typical Application
Pin-Out Information
Pin Function
1
Remote (On/Off)
2
No Pin
3–Vin
4–Vin
5
N/C
6+Vin
7+Vin
8
No Pin
9
No Pin
10
Vo1
Pin Function
11
COM
12
Vo2 Adjust
13
No Pin
14
Vo2
15
Vo2
16
COM
17
COM
18
Vo3
19
Vo3 Adjust
20
No Pin
PT4801—48V
Description
The PT4801 Excalibur module is an
isolated triple-output DC/DC converter
that provides +15V, +3.3V, and +1.5V
power supply voltages from a standard
(-48V) telecom central office (CO) supply.
A typical application is a chip-set for an
8 or 16-channel ADSL/DSL line card, or
other mixed signal circuitry. The output
voltage combination provides power for a
processor core, digital logic, and analog
support circuitry. The Vo2 and Vo3 outputs
are also designed to meet the power-up/
down sequencing requirements of popular
DSP ICs.
The PT4801 is housed in a space-
saving solderable copper case. A heatsink
is not required. The vertical configura-
tion occupies only 1.6 in2 of PCB area.
Cin
= Optional 33F
Co
1/Co2
= Optional 10F to 330F per output. (See note 6)
25-W Triple Output Isolated DC/DC
Converter for DSL Applications
SLTS143A
(Revised 1/29/2002)
DSL/ADSL
IC Chip Set
+V
IN
–V
IN
+15VDC
+3.3VDC
+1.5VDC
PT4801
6, 7
3, 4
10
14, 15
18
16, 17
11
1
Vo
1
COM
Vo
2
Vo
3
+V
IN
–V
IN
Remote
On/Off
Vo
2adj
Vo
3adj
12
19
Vo
2 Adjust
Vo
3 Adjust
Co
1
Co
3
Co
2
C
IN
Fixed Frequency Operation
Over-Temperature Shutdown
Under-Voltage Lockout
Space Saving Package:
1.6 sq. in. PCB Area (suffix N)
Solderable Copper Case
Safety Agency Approvals:
UL 60950
CSA C22.2 60950
VDE EN60950
PT Series Suffix (PT1234 x )
Case/Pin
Order
Package
Configuration
Suffix
Code
Vertical
N
(ENJ)
Horizontal
A
(ENK)
SMD
C
(ENL)
(Reference the applicable package code draw-
ing for the dimensions and PC board layout)
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