Datasheet > SIP11203DB

SIP11203DB

更新时间： 2024-09-29 03:31:59

品牌	Logo	应用领域
威世 - VISHAY		/
页数	文件大小	规格书
12页	437K
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Demonstration Board

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SIP11203DB 数据手册

SiP11203DB

Vishay Siliconix

SiP11203 Demonstration Board

DEMONSTRATION BOARD TEST SETUP

FEATURES

This demonstration board test setup information

details the test procedure for using the SiP11203 dem-

onstration board and its associated host board. The

demonstration board is plugged vertically into the host

board. Only one orientation is possible for correct plug-

in. The input and output power leads and an optional

enable lead are wired into the host board connectors

as shown in Figure 1. A mechanical toggle switch is

also available on the host board for manual enabling

and disabling of the demonstration board. The host

board is configured by default for manual switch tog-

gling of enable/disable. If an electrical control signal is

preferred, this can be wired into the enable connector

J2. However, in this case the zero ohm link connected

in the R4 position must be removed and reconnected

in the R1 position, which is vacant by default. A 5 V

input to the enable pin disables the demonstration

board and a 0 V or open circuit input signal causes the

demonstration board to be enabled. Test pins are

available on the host board, at the input, output, and

enable pins, for the easy connection of scope probes.

These wiring connections are depicted in Figure 1. The

input connections should be wired as closely as possi-

ble to the power supply, using cable rated at 2 A or

more. However, lead lengths of up to a meter or two

are probably acceptable. If the leads are significantly

longer, a second input decoupling capacitor should be

connected in position C1, which is left blank by default.

At the load side, four 8 A rated wires should be con-

nected from both +Vout and -Vout terminals to the

load.

• High efficiency, > 87 % at full rated load current

• Delivers up to 15 amps of output current with mini-

mal de-rating - no heat sink required

• Wide input voltage range: 35 V - 75 V, with 100 V

100 ms input voltage transient capability

• No minimum load requirement means no preload

resistors required

• Remote sense for the output voltage compensates

for output distribution drops

• On/Off control referenced to input side

• Input under-voltage lockout disables converter at

low input voltage conditions

• Output short circuit protection protects converter

and load from permanent damage and consequent

hazardous conditions

• Output over-voltage protection protects load from

damaging voltages

• Thermal shutdown protects converter from abnor-

mal environmental conditions

To load

The Vsense terminals can be connected remotely to

the load terminals for good regulation at the load, but

this is not essential, as the Vsense terminals are con-

nected to the output terminals through 4.7 Ω resistors

on the demonstration board. A small fan should be

placed adjacent to the host board, blowing cooling air

over both vertical faces of the demonstration board.

There is over temperature protection within the dem-

onstration board, so the system will function without

fan cooling, but the demonstration board will disable

operation if the PCB temperature exceeds 85 ºC, and

will re-enable once the temperature drops to

75 ºC.

Airflow

Direction

Enable

(optional)

Vin-

Vin+

Figure 1. SiP11203 Test Board Layout

The rated input voltage range is 36 V - 75 V, and the

converter can operate at input voltage levels up to

100 V for 100 ms. The maximum rated load is 50 W.

The output voltage is regulated to 3.3 V with an output

load current range of 0 A - 15 A.

The information shown here is a preliminary product proposal, not a commercial product data sheet. Vishay Siliconix is not committed to produce

this or any similar product. This information should not be used for design purposes, nor construed as an offer to furnish or sell such products

Document Number: 74254

S-60997–Rev. A, 12-Jun-06

www.vishay.com

12 3 4 5 6 7...12

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