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參數(shù)資料
| 型號： | PQ60015HPAA0PKF-G |
| 廠商： | SYNQOR INC |
| 元件分類： | 電源模塊 |
| 英文描述： | 1-OUTPUT 150 W DC-DC REG PWR SUPPLY MODULE |
| 封裝： | ROHS COMPLIANT, HALF-BRICK PACKAGE-11/10 |
| 文件頁數(shù)： | 13/13頁 |
| 文件大小： | 1096K |
| 代理商： | PQ60015HPAA0PKF-G |
Input:
Output:
Current:
Package:
35-75 V
1.5 V
100 A
Half-brick
Technical Specification
BASIC OPERATION AND FEATURES
The PowerQor series converter uses a two-stage power conversion
topology. The first stage is a buck-converter that keeps the output
voltage constant over variations in line, load, and temperature.
The second stage uses a transformer to provide the functions of
input/output isolation and voltage step-down to achieve the low
output voltage required.
Both the first stage and the second stage switch at a fixed fre-
quency for predictable EMI performance. Rectification of the trans-
former’s output is accomplished with synchronous rectifiers. These
devices, which are MOSFETs with a very low on-state resistance,
dissipate far less energy than Schottky diodes. This is the primary
reason that the PowerQor converter has such high efficiency, even
at very low output voltages and very high output currents.
Dissipation throughout the converter is so low that it does not
require a heatsink for operation. Since a heatsink is not required,
the PowerQor converter does not need a metal baseplate or pot-
ting material to help conduct the dissipated energy to the heatsink.
The PowerQor converter can thus be built more simply and reliably
using high yield surface mount techniques on a PCB substrate.
The PowerQor series of half-brick, quarter-brick and eighth-
brick converters uses the industry standard footprint and pin-out
configuration.
CONTROL FEATURES
REMOTE ON/OFF (Pin 2): The ON/OFF input, Pin 2, permits
the user to control when the converter is on or off. This input is
referenced to the return terminal of the input bus,
Vin(-). There
are two versions of the converter that differ by the sense of the
logic used for the ON/OFF input.
In the positive logic version, the ON/OFF input is active high
(meaning that a high turns the converter on). In the negative logic
version, the ON/OFF signal is active low (meaning that a low
turns the converter on). Figure A details five possible circuits for
driving the ON/OFF pin. Figure B is a detailed look of the internal
ON/OFF circuitry.
REMOTE SENSE(+) (Pins 9 and 7): The SENSE(+) inputs
correct for voltage drops along the conductors that connect the
converter’s output pins to the load.
Pin 9 should be connected to Vout(+) and Pin 7 should be con-
nected to Vout(-) at the point on the board where regulation is
desired. A remote connection at the load can adjust for a voltage
drop only as large as that specified in this datasheet, that is
[Vout(+) - Vout(-)] – [Vsense(+) - Vsense(-)] <
Sense Range % x Vout
Pins 9 and 7 must be connected for proper regulation of the out-
put voltage. If these connections are not made, the converter will
deliver an output voltage that is slightly higher than its specified
value.
Note: the output over-voltage protection circuit senses the voltage
across the output (pins 11 and 5) to determine when it should
trigger, not the voltage across the converter’s sense leads (pins
9 and 7). Therefore, the resistive drop on the board should be
small enough so that output OVP does not trigger, even during
load transients.
OUTPUT VOLTAGE TRIM (Pin 8): The TRIM input permits the
user to adjust the output voltage across the sense leads up or down
according to the trim range specifications.
Open Collector Enable Circuit
Figure A: Various circuits for driving the ON/OFF pin.
Figure B: Internal ON/OFF pin circuitry
Remote Enable Circuit
Direct Logic Drive
Negative Logic
(Permanently Enabled)
Positive Logic
(Permanently Enabled)
ON/OFF
Vin(_
)
ON/OFF
Vin(_
)
ON/OFF
5V
TTL/
CMOS
Vin(_
)
ON/OFF
Vin(_)
Vin(_
)
TTL
5V
50k
274k
Vin(+)
ON/OFF
Vin(_)
50k
100pF
TTL
Product # PQ60015HPAA0
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-2HP651K Rev. D
05\20\09
Page 9
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| PQ60015HPAA0PRS-G | 制造商:SYNQOR 制造商全稱:SYNQOR 功能描述:Half-brick DC/DC Converter |
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