收藏本站
参数资料
型号： PT4832
厂商： Texas Instruments, Inc.
英文描述： "5V/3.3V/2.5V 9A
中文描述： 5V/3.3V/2.5V 9A 输出 48V 输入的隔离 DC/DC 转换器
文件页数： 7/32页
文件大小： 764K
代理商： PT4832
For technical support and more information, see inside back cover or visit www.ti.com
7
SLTS165E - FEBRUARY 2002 - REVISED MARCH 2003
PT4823
—
48V
35-W Triple Output Isolated DC/DC
Converter for Logic Applications
PT4823 Electrical Specifications
(Unless otherwise stated, the operating conditions are: T
a
=25°C, V
in
=48V, and I
o
=0.5I
o
max)
PT4823
Typ
Characteristics
Symbols
Conditions
Min
Max
Units
Output Current
I
o
Each output
Io
1
(3.3V)
Io
2
(2.5V)
Io
3
(1.2V)
0.25
(1)
0.1
0.1
—
36
—
3.24
2.45
1.17
—
—
—
—
—
—
—
—
—
—
—
—
—
—
350
—
—
—
—
—
—
—
—
—
3.3
2.5
1.2
±0.5
±0.5
±0.1
±0.1
—
—
85.6
35
25
25
200
3
±10
14
400
35.5
34
140
(4)
8
6
6
12
75
80
3.36
2.55
1.23
—
—
±0.5
±0.5
±3
(3)
±3
(3)
—
—
—
—
—
—
—
—
450
—
—
—
(2)
(2)
(2)
(1)
(1)
A
Total (Io
1
+ Io
2
+ Io
3
)
Continuous
Surge (1 minute)
(2)
A
Input Voltage Range
V
in
V
Set-Point Voltage
V
o
Vo
1
Vo
2
Vo
3
Vo
1
V
Temperature Variation
Reg
temp
–40°C
≤
T
a
≤
+85°C, I
o
=I
o
min
%V
o
Vo
2
/Vo
3
Line Regulation
Load Regulation
Total Output Voltage Variation
Reg
line
Reg
load
V
o
tol
All outputs, Over V
in
range
All outputs, 0
≤
I
o
≤
I
o
max
Includes set-point, line, load,
–40°C
≤
T
a
≤
+85°C
Io
1
=6A, Io
2
=2A, Io
3
=2A
%V
o
%V
o
Vo
1
%V
o
Vo
2
/Vo
3
Efficiency
V
Ripple/Noise
(0 to 20MHz bandwidth)
η
V
n
%
Vo
1
Vo
2
Vo
3
mV
pp
Transient Response
t
tr
V
os
V
o
adj
I
TRIP
s
V
on
V
off
t
on
0.1A/μs load step, 50% to 75% I
o
max
V
o
over/undershoot
μSec
%V
o
%V
o
A
kHz
V
Output Adjust Range
Over-Current Threshold
Switching Frequency
Under Voltage Lockout
Vo
1
/Vo
2
/Vo
3
Total, all outputs. Reset with auto-recovery
Over V
in
and I
o
ranges
V
in
increasing
V
in
decreasing
V
in
=48V step
Referenced to –V
in
(pin 4)
Turn-On Time
Enable Control (pins 1 & 2)
High-Level Input Voltage
Low-Level Input Voltage
Low-Level Input Current
Standby Input Current
Internal Input Capacitance
External Output Capacitance
ms
V
IH
V
IL
I
IL
I
in
standby
C
int
Co
1
Co
2
Co
3
V
iso
C
iso
R
iso
4
–0.2
—
—
—
0
0
0
1500
—
10
—
—
1
1
1.14
220
220
220
—
2,200
—
15
(5)
0.8
2
5
—
1,000
(6)
1,000
(6)
1,000
(6)
—
—
—
V
mA
mA
μF
pins 1 & 2 open circuit
μF
Primary/Secondary Isolation
V
pF
M
Notes:
(1) The converter will operate down to no load with reduced specifications.
(2) The sum-total current from outputs Vo
1
, Vo
2
, and Vo
3
cannot exceed 12ADC.
(3) Limits are specified by design.
(4) Measured from the application of the input voltage to the instance that all outputs are in regulation.
(5) The Enable inputs (pins 1 & 2) have internal pull-ups. Leaving pin 1 open-circuit and connecting pin 2 to –V
in
allows the the converter to operate when
input power is applied. The maximum open-circuit voltage is 4V.
(6) Ultra-low ESR capacitors, such as organic or polymer aluminum electrolytic types, may cause instability. Consult the factory before using.
相关PDF资料
PDF描述
PT4852 "3.3V/1.8V/1.5V 25A
PT4853 "3.3V/2.5V/1.2V 25A
PT4855 "3.3V/1.5V/1.2V 25A
PT4856 "5V/3.3V/1.5V
PT491 Intermediate Acceptance High Sensitivity Phototransistor
相关代理商/技术参数
参数描述
PT4832A 功能描述:直流/直流开关转换器 5V/3.3V/2.5V 9A 48V Inpt Iso DC/DC Cnvtr RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT
PT4832C 功能描述:直流/直流开关转换器 5V/3.3V/2.5V 9A 48V Inpt Iso DC/DC Cnvtr RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT
PT4832N 功能描述:直流/直流开关转换器 5V/3.3V/2.5V 9A 48V Inpt Iso DC/DC Cnvtr RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT
PT4833 制造商:TI 制造商全称:Texas Instruments 功能描述:35-W Triple Output Isolated DC/DC Converter for Logic Applications
PT4833A 功能描述:直流/直流开关转换器 3.3/2/1.5 V 12A 48V Inpt Iso DC/DC Cnvtr RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT
发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

*型号 *数量 厂商 批号 封装
添加更多采购

我的联系方式

*
*
*