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参数资料
| 型号： | PWS750-4U |
| 英文描述： | Isolated, Unregulated DC/DC CONVERTER COMPONENTS |
| 中文描述： | 隔离，稳压直流/直流转换器元件 |
| 文件页数： | 1/11页 |
| 文件大小： | 151K |
| 代理商： | PWS750-4U |
PWS750
PWS750-3U
PWS750-2U
4
3
4
1
6
3
2
5
6
7
0.3μF
0.3μF
10
–V
O
+V
O
S
D
G
S
D
G
2N7002
or
2N7008
2N7002
or
2N7008
Duplicate for multichannel
operation with PWS750-2U.
0.3μF
Driver
Soft
Start
Oscillator
R
1
T
16
T
0.3μF
Comparator
Differential
Amplifier
+V
+V
IN
7
3
11
10μH
PWS750-1U
Reference
TTL
OUT
TTL
IN
Enable
V
D
Input
Gnd
12
14
10
(2)
(2)
(1)
10
(1)
10
(3)
10
(3)
S
(1)
Output
Ground
The PWS750-2U and PWS750-4U are split-bobbin
wound isolation transformers using a ferrite core.
They are encapsulated in plastic packages, allowing a
high isolation voltage rating.
The PWS750-3U is a high-speed monolithic diode
bridge in a plastic 8-pin SO package.
One PWS750-1U can be used to drive up to four
channels (15V nominal operation). One PWS750-2U
and PWS750-3U and two 2N7002 (surface mount) or
2N7008 (TO-92) MOSFETs made by Siliconix are
used per isolated channel. When a PWS750-4U is
used as the transformer (5V input), then two TN0604s
made by Supertex must be used, due to the higher
currents of the primary (lower RDS on) and the lower
V
GS
threshold. With 5V operation only one channel
can be directly driven by the PWS750-1U (a simple
FET booster circuit can be used for multichannel
operation; see Figure 3).
Isolated, Unregulated
DC/DC CONVERTER COMPONENTS
PWS750
DESCRIPTION
The PWS750 consists of three building blocks for
building a low cost DC/DC converter. With them you
can optimize DC/DC converter PC board layout or
build a multichannel isolated DC/DC converter. All
parts are surface mount, requiring minimal space to
build the converter. The modular design minimizes the
cost of isolated power.
The PWS750-1U is a high-frequency (800kHz nomi-
nal) driver that can drive N-channel MOSFETs up to
the size of a 1.3A 2N7010. The recommended
MOSFET for individual transformer drivers is the
2N7008. The PWS750-1U is supplied in a 16-pin
double-wide SO package.
APPLICATIONS
G
INDUSTRIAL PROCESS CONTROL
EQUIPMENT
G
GROUND-LOOP ELIMINATION
G
PC-BASED DATA ACQUISITION
G
VENDING MACHINES
FEATURES
G
100% TESTED FOR HIGH-VOLTAGE
BREAKDOWN
G
COMPACT-SURFACE MOUNT
G
MULTICHANNEL OPERATION
G
5V OR 15V INPUT OPTIONS
G
FLEXIBLE USE WITH PWS740/PWS745
COMPONENTS
PWS750 SINGLE-CHANNEL CONNECTION
Typical Connection for
Internal Oscillator Operation
NOTES: (1) User option. (2) Use TN0604 for 5V to
±
15V operation. (3) Multichannel Operation.
1988 Burr-Brown Corporation
PDS-838F
International Airport Industrial Park Mailing Address: PO Box 11400, Tucson, AZ 85734 Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 Tel: (520) 746-1111 Twx: 910-952-1111
Internet: http://www.burr-brown.com/ FAXLine: (800) 548-6133 (US/Canada Only) Cable: BBRCORP Telex: 066-6491 FAX: (520) 889-1510 Immediate Product Info: (800) 548-6132
相关PDF资料 |
PDF描述 |
|---|---|
| PWS750 | |
| PWS750 | Isolated, Unregulated DC/DC Converters Components(隔离的未调整的 DC/DC变换器) |
| PX0112 | PLUG OCTAL WITH COVER |
| PX0950 | ADAPTOR BULKHEAD |
| PX0960 | SEALING CAP PX0911 |
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