ALQ/AEQ Series DC/DC Converter TRN
ALQ/AEQ Series Isolated DC/DC Converter Technical Reference Notes Industry Standard Quarter Brick: 36~75V Input, 2.5V, 3.3V, 5V and 12V Single Output
Features • •
• • •
Industry Standard Quarter Brick : 2.28”X 1.45’’ X 0.4’’ (open frame) or 2.28” x 1.45” x 0. 5” (baseplated)
Options • •
Choice of positive logic or negative logic for CNT function Choice of short pins or long pins
Description
• • • • • • • • • • • •
Delivers up to 25A output current Industry standard quarter brick (open frame/ baseplated): 57.9mm % 36.8mm % 9.0/11.5mm (2.28” % 1.45” % 0.4/0.5”) Basic isolation Ultra high efficiency Improved thermal performance:
[email protected] at 55ºC at 300LFM High power density Low output noise Industry standard pinout 2:1 wide input voltage of 36-75V CNT function Remote sense Trim function: +10%/-20% Input under-voltage lockout Output over-current protection (hiccup) Output over-voltage protection (hiccup) Over-temperature protection RoHS compliant
The ALQ/AEQ series is a new open frame DC-DC converter for optimum efficiency and power density. The ALQ/AEQ series provide up to 25A output current in an industry standard quarter brick, which makes it an ideal choice for small space, high current and low voltage applications. The ALQ/AEQ series uses an industry standard quarter brick (open frame/ baseplate): 57.9mm % 36.8mm % 9.0/11.5mm (2.28” % 1.45” % 0.4/0.5”) and standard pinout configuration provides CNT and trim functions. ALQ/AEQ series can provide 2.5V@25A, 3.3V@25A, 5V@20A and
[email protected] single output that are isolated from inputs. The series can achieve ultra high efficiency, for most applications a heat sink is not required. USA Europe TEL:1-760-930-4600 FAX:1-760-930-0698 DATE: 2006-11-27
Asia 44-(0)1384-842-211 44-(0)1384-843-355
852-2437-9662 852-2402-4426 REV: 1.4
www.astec.com 1/24
ALQ/AEQ Series DC/DC ConverterTRN
Module Numbering
A L Q 25
F 48
N
— — — —— — —— 1 2 3 4 5 6
— 7
— 8
Explanation: 1 -- Series name 2 – Construction: L--- Low Profile (Open Frame, No case - Isolated) E--- Enhanced Thermals (Baseplate or adapter plate) 3 -- Quarter Brick. 4 -- Maximum Output Current: 25 --- 25A 5 -- Output rated voltage: B--12V, F--3.3V, A--5V 6 -- Input Voltage Range: 48---36V to 75V 7—CNT logic, N---Negative logic control, default is positive logic control 8—Pin length: Omit for standard 5mm 6---3.8mm 8---2.8mm 7---5.8mm Note: The following is based on positive logic modules. Negative logic modules are the same with positive ones except for their pin logic.
DATE: 2006-11-27
REV: 1.4
2/24
ALQ/AEQ Series DC/DC Converter TRN
Electrical Specifications Unless otherwise indicated, specifications apply over all operating input voltage and temperature conditions. Standard test condition on a single unit is as following: Tc (board):
25 ÿC
+Vin:
48V ± 2%
-Vin:
Return pin for +Vin
CNT:
Connect to -Vin for negative logic Open for positive logic
+Vout:
Connect to load
-Vout:
Connect to load (return)
+Sense:
Connect to +Vout
-Sense:
Connect to -Vout
Trim (Vadj): Open
Input Specifications
Parameter Operating Input Voltage Maximum Input Current (VI = 0 to VI,max, Io = Io,max) Input Reflected-ripple Current (Rated input and output) Supply voltage rejection (120Hz)
Device
Symbol
Min
Typ
Max
Unit
All
VI
36
48
75
Vdc
All
II,max
-
-
3.4
A
All
II
-
10
20
mAp-p
All
-
45
60
-
dB
CAUTION: This power module is not internally fused. An input line fuse must always be used.
DATE: 2006-11-27
REV: 1.4
3/24
ALQ/AEQ Series DC/DC Converter TRN
Absolute Maximum Ratings Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. These are absolute stress ratings only. Functional operation of the device is not implied at these or any other conditions in excess of those given in the operational sections of the IPS. Exposure to absolute maximum ratings for extended periods can adversely affect device reliability.
Parameter
Device
Symbol
Min
Typ
Max
Unit
Continuous
All
VI
0
-
80
Vdc
Transient (100ms)
All
VI, trans
0
-
100
Vdc
All
Ta
-40
-
70
ºC
Operating Board Temperature
All
Tc
-40
-
105
ºC
Storage Temperature
All
TSTG
-55
-
125
ºC
Operating Humidity
All
-
5
-
95
RH%
All
-
1,500
Vdc
Input Voltage
Operating Ambient Temperature (See Thermal Consideration)
Basic Input-Output Isolation (Conditions: 1mA for 1min, slew rate of 1,500V/10sec) 2.5V Output Power
3.3V 5V
62.5 Po,max
12V
DATE: 2006-11-27
-
-
82.5 100
W
100
REV: 1.4
4/24
ALQ/AEQ Series DC/DC Converter TRN
Output Specifications Parameter
Device
Output Ripple and Noise Peak-to-Peak (5 Hz to 20 MHz)
2.5V 3.3V 5V 12V
(high frequency low ESR external capacitor required for each output, see Figure 51)
External Load Capacitance
2.5V 3.3V 5V 12V
Output Voltage Setpoint (VI = VI,min to VI,max: Io = Io,max; Ta = 25 ºC )
2.5V 3.3V 5V 12V
Output Regulatio n
Symbol
-
Min
-
Typ
Max
Unit
-
100 100 120 180
mVp-p (f
