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參數資料
| 型號： | USQ-3.3/20-D48NDH |
| 元件分類： | 電源模塊 |
| 英文描述： | 1-OUTPUT DC-DC REG PWR SUPPLY MODULE |
| 封裝： | 1.450 X 2.280 INCH, 0.400 INCH HEIGHT, QUARTER BRICK PACKAGE-8 |
| 文件頁數： | 1/22頁 |
| 文件大小： | 2199K |
| 代理商： | USQ-3.3/20-D48NDH |
DATEL, Inc., Manseld, MA 02048 (USA) Tel: (508)339-3000, (800)233-2765 Fax: (508)339-6356 Email: sales@datel.com Internet: www.datel.com
–VIN
(1)
+VIN
(3)
OPTO
ISOLATION
PWM
CONTROLLER
REFERENCE &
ERROR AMP
INPUT UNDERVOLTAGE, INPUT
OVERVOLTAGE, AND OUTPUT
OVERVOLTAGE COMPARATORS
* Can be ordered with positive (standard) or negative (optional) polarity.
REMOTE
ON/OFF
CONTROL*
(2)
+SENSE
(7)
–SENSE
(5)
+VOUT
(8)
VOUT
TRIM
(6)
–VOUT
(4)
SWITCH
CONTROL
Single Output
USQ 20A Models
High-Density, Quarter-Brick
20 Amp, DC/DC Converters
For low-voltage, high-current power . . . in the smallest space . . . over the widest
temperature range . . . call on DATEL’s USQ Series 20 Amp "quarter bricks." Occupy-
ing the industry-standard package (1.45" x 2.28" x 0.40") and pinout, USQ’s house
their fully-synchronous, forward design topology in a "two-board" assembly crowned
with a heat-sink-compatible aluminum baseplate. This combination of outstanding
thermal and electrical efciencies endows USQ’s with industry-leading, thermal-
derating performance. The 1.8VOUT model, for example, delivers its full 20 Amps up to
+55
°C with a mere 200 lfm air ow.
USQ’s achieve all the performance metrics required for contemporary, on-board
power processing: high isolation (1500Vdc), superior efciency (to 91%), tight regula-
tion (to
±0.05% max. line and load), low noise (to 50mVp-p), quick step response
(200
sec), and an array of protection features. I/O protection includes input under-
voltage lockout and reverse-polarity protection, as well as output overvoltage pro-
tection, current limiting, short-circuit protection, and thermal shutdown. The USQ
functionality suite includes remote on/off control (positive or negative polarity), output
trim (+10/–20%), and output sense functions.
All USQ DC/DC’s are designed to meet the BASIC insulation requirements of
UL1950 and EN60950, and all 48 Volt models will carry the CE mark. Safety certica-
tions, as well as EMC compliance testing and qualication testing (including HALT)
have been successfully completed. Contact DATEL for copies of the latest reports.
Figure 1. Simplied Schematic
Features
Standard, 1.45" x 2.28" x 0.40"
quarter-brick package and pinout
Outstanding thermal-derating
Output current: to 20 Amps
Outputs Voltages:
1.2/1.5/1.8/2.5/3.3/5/12/15/18/24V
Input voltage ranges:
36-75V (48V nom.)
18-36V (24V nom.)
Synchronous rectication yields high
efciency (to 91%) and stable no-load
operation
On/Off control, trim and sense functions
Fully isolated, 1500Vdc guaranteed
Fully I/O protected;Thermal shutdown
UL1950/EN60950 (BASIC insulation)
approvals
Qual tested; HALT tested; EMI compliant
A SUBSIDIARY OF C&D TECHNOLOGIES
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