参数资料
型号: PTB48510BAZ
厂商: TEXAS INSTRUMENTS INC
元件分类: 电源模块
英文描述: 2-OUTPUT 72 W DC-DC REG PWR SUPPLY MODULE
封装: ROHS COMPLIANT, DIP-8
文件页数: 1/17页
文件大小: 544K
代理商: PTB48510BAZ
1
FEATURES
DESCRIPTION
1
+V
I
2
Sync In
3
Enable
4
-V
I
5
V
O1
6
V
OAdj
7
COM
8
*V
O2
PTB4851x
L
O
A
D
L
O
A
D
COM
+V
I
-V
I
O1
I
O2
UDG-07040
*V
O1 @ | VO2 |
*V
O2is the negative voltage.
SLTS219F – FEBRUARY 2004 – REVISED MARCH 2007
www.ti.com
DUAL COMPLEMENTARY-OUTPUT DC/DC CONVERTER FOR DSL
Dual Complementary Outputs
(±5 V, ±12 V, or ±15 V)
Input Voltage Range: 36 V to 75 V
On/Off Enable for Sequencing
1500 V
DC Isolation
Overcurrent Protection
Overvoltage Protection (PTB48511 only)
Over Temperature Shutdown
Undervoltage Lockout
The PTB4851x series of isolated DC/DC converter
Temperature Range: –40°C to 85°C
modules produce a complementary pair of regulated
Industry Standard Outline
supply voltages for powering line-driver devices in
Fixed Frequency Operation
xDSL telecom applications. The modules operate
Synchronizes with PTB48500
from a standard telecom (–48 V) central office (CO)
supply and can provide up to a 72 W of power in a
Powers Line Drivers for AC-7 and Other xDSL
balanced load configuration.
Chipsets
The A-suffix module (±5 V) is designed to power the
Safety Approvals:
line driver devices for the AC-7 ADSL chipset. Other
EN 60950
voltage options powers other analog applications
UL/cUL 60950
requiring a complementary supply with relatively
balanced loads.o
STAND-ALONE APPLICATION
Both the PTB48510 and PTB48511 include an
“on/off”
enable
control,
output
current
limit,
over-temperature protection, and input under-voltage
lockout
(UVLO).
The
PTB48511
adds
output
overvoltage protection (OVP).
The
control
inputs,
Enable
and
Sync
In,
are
compatible with the EN Out and Sync Out signals of
the PTB48500 DC/DC converter. This allows the
power-up and switching frequency of the PTB4851x
modules to be directly controlled from a PTB48500.
Together the PTB48500 and PTB4851xA converters
meet
all
the
system
power
and
sequencing
requirements of the AC- ADSL chipset.
The PTB4851x uses double-sided surface mount
technology contruction. The package size is based on
the industry standard outline and does not require a
heatsink. Both through-hole and surface mount pin
configurations are available.
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Copyright 2004–2007, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
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