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参数资料
| 型号： | PTB48600AAH |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 电源模块 |
| 英文描述： | 2-OUTPUT 85 W DC-DC REG PWR SUPPLY MODULE |
| 封装： | DIP-8 |
| 文件页数： | 3/10页 |
| 文件大小： | 387K |
| 代理商： | PTB48600AAH |
For technical support and further information visit http://power.ti.com
Ordering Information
Package Options (PT48600A
)
Code
Description
Pkg Ref. (1)
AH
Horiz. T/H
(ERT)
AS
SMD, Standard (2)
(ERU)
Output Voltage (PTB48600
xx)
Code
Voltage
A
±5 V
Notes:
(1) Reference the applicable package reference drawing for the dimensions and PC board layout
(2) “Standard” option specifies 63/37, Sn/Pb pin solder material.
Pin Descriptions
+V
I: The positive input supply for the module with respect
to –V
I. When powering the module from a –48 V telecom
central office supply, this input is connected to the primary
system ground.
–V
I: The negative input supply for the module, and the
0 VDC reference for the ‘Enable*’, and ‘Sync In’ signals.
When the module is powered from a +48-V supply, this
input is connected to the 48-V Return.
+V
O: The positive output supply voltage, which is refer-
enced to the ‘COM’ node. The voltage at ‘+V
O’ has the
same magnitude, but is the complement to that at ‘-V
O’.
–V
O: The negative output supply voltage, which is refer-
enced to the ‘COM’ node. The voltage at ‘-V
O’ has the
same magnitude, but is the complement to that at ‘+V
O’.
COM:
The secondary return reference for the module’s
regulated output voltages. This node is dc isolated from
the input supply pins.
±V
O Adjust: Using a single resistor, this pin allows the
magnitude of both ‘+V
O’ and ‘–VO’ to be adjusted to-
gether, either higher or lower than their preset value. If
not used, this pin should be left open circuit.
Enable*:
This is an open-collector (open-drain) negative
logic input that enables the module output. This pin is
referenced to -VI. A logic ‘0’ at this pin enables the
module’s outputs, and a high impedance disables the
outputs. If this feature is not used the pin should be con-
nected to –VI. Note: Connecting this input directly to the
“EN Out” pin of the PTB4850x enables the output voltages
from both converters (PTB4850x and PTB48600) to power
up in sequence.
Sync In:
This pin is used when the PTB48600 and PTB4850x
DC/DC converter modules are used together. Connect-
ing this pin to the ‘Sync Out’ of the PTB4850x module
allows the PTB48600 to be synchronized to the same
switch conversion frequency as the PTB4850x.
Environmental and General Specifications (Unless otherwise stated, all voltages are with respect to –VI)
Characteristics
Symbols
Conditions
Min
Typ
Max
Units
Input Voltage Range
VI
Over output load range
36
48
75
VDC
Isolation Voltage
Input–output/input–case
1500
—
V
Capacitance
Input to output
—
1500
—
pF
Resistance
Input to output
10
—
M
Operating Temperature Range
T
A
Over V
in Range
–40
—
+85
°C
Over-Temperature Protection
OTP
Shutdown threshold
—
115 (i)
—
°C
Hysterisis
—
10
—
Solder Reflow Temperature
TREFLOW
Surface temperature of module body or pins
235 (ii)
°C
Storage Temperature
TS
—
–40
—
125
°C
Mechanical Vibration
Mil-STD-883D, Method 2007.2
T/H
—
20
—
G’s
20-2000 Hz
SMD
—
2.5
—
Mechanical Shock
Per Mil-STD-883D, Method 2002.3
T/H
—
500
—
G’s
1 msec, Sine, mounted
SMD
—
250
—
Weight
—
35
—
grams
Flammability
—
Meets UL 94V-O
Notes:
(i) This parameter is defined by design
(ii) During reflow of SMD package version do not elevate peak temperature of the module, pins or internal components above the stated maximum.
Base Pt. No. (PTB4860
xxx)
Order Prefix
Description
PTB48600xxx
Basic Model
85 W Dual Complementary-Output
DC/DC Converter for DSL
SLTS239 JANUARY 2005
PTB48600 —48-V Input
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