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参数资料
| 型号： | ULQ-1.5/25-D24PL2 |
| 厂商： | CD TECHNOLOGIES INC |
| 元件分类： | 电源模块 |
| 英文描述： | 1-OUTPUT DC-DC REG PWR SUPPLY MODULE |
| 封装： | 1.450 X 2.300 INCH, 0.350 INCH HEIGHT, QUARTER BRICK PACKAGE-8 |
| 文件页数： | 10/16页 |
| 文件大小： | 566K |
| 代理商： | ULQ-1.5/25-D24PL2 |
ULQ Models
8 - 2 5 A M P , S I N G L E O U T P U T C O N V E R T E R S
Performance/Functional Specications
Typical @ TA = +25°C under nominal line voltage, full-load conditions, unless noted. (1)
3
Absolute Maximum Ratings
Input Voltage:
D24V Models
D48V Models
Continuous:
See OVP
81 Volts
Transient (100msec):
NA
100 Volts
Input Reverse-Polarity Protection
Input Current must be <5A. 1 minute
duration. Fusing recommended.
Output Current
Current limited. Devices can withstand
an indenite output short circuit.
On/Off Control (Pin 2) Max. Voltages
Referenced to –Input (pin 1)
–0.3 to +13.6 Volts
Storage Temperature
–55 to +125°C
Lead Temperature
Through-hole Soldering
+300°C, 10 seconds
SMT Soldering
Refer to solder prole
These are stress ratings. Exposure of devices to any of these conditions may adversely
affect long-term reliability. Proper operation under conditions other than those listed in the
Performance/Functional Specications Table is not implied, nor recommended.
Dynamic Characteristics
Dynamic Load Response (11)
(50% Load Step)
60-300sec, model dependent
Start-Up Time: (4) (12)
VIN to VOUT; On/Off to VOUT
30msec typical, 50msec maximum
Switching Frequency
160-300kHz , model dependent
Maximum Capacitive Load
4700F
ENVIRONMENTAL
Calculated MTBF: (13)
TBD million hours
Operating Temperature (Ambient): (4) (14)
Without Derating
Model and air ow dependent
With Derating
To +100°C (pcb)
PCB Temperature: (4) (14)
Maximum Allowable
+100°C
Thermal Shutdown
+105-120°C, +115°C typical
Physical
Dimensions
See Mechanical Dimensions
Pin Material
Copper, solder coated over nickel underplate
Weight:
1 ounce (28 grams)
Primary-to-Secondary Insulation Level Basic
EMI Conducted and Radiated
FCC Part 15, EN55022 may require
external lter
Safety
UL/IEC/EN60950 CSA-C22.2 No. 234
(1)
All models are tested and specied with external output capacitors (1F ceramic in parallel
with 10F tantalum), unless otherwise noted. These converters have no minimum-load require-
ments and will effectively regulate under no-load conditions.
(2)
Contact DATEL for input voltage ranges other than those listed.
(3)
See Absolute Maximum Ratings for allowable input voltages.
(4)
See Technical Notes/Performance Curves for additional explanations and details.
(5)
Input Ripple Current is tested/specied over a 5-20MHz bandwidth with an external 33F input
capacitor and a simulated source impedance of 220F and 12H. See I/O Filtering, Input
Ripple Current and Output Noise for details.
(6)
The On/Off Control is designed to be driven with open-collector (or equivalent) logic or the
application of appropriate voltages (referenced to –Input (pin 1)). See Remote On/Off Control
for more details.
(7)
ULQ Series DC/DC converters are unconditionally stable, including start-up and short-circuit-
shutdown situations, with capacitive loads up to 20,000F.
(8)
Extreme Accuracy refers to the accuracy of either trimmed or untrimmed output voltages over
all normal operating ranges and combinations of input voltage, output load and temperature.
(9)
See Output Trimming for detailed trim equations.
(10)
The Current-Limit Inception point is the output current level at which the ULQ’s power-limiting
circuitry drops the output voltage 2% from its initial value. See Output Current Limiting and
Short-Circuit Protection for more details.
(11)
See Performance Curves for additional information.
(12)
For the Start-Up Time specications, output settling is dened by the output voltage having
reached ±1% of its nal value.
(13)
MTBF’s are calculated using Telcordia (Bellcore) Method 1 Case 3, ground xed conditions,
+40°C case temperature, and full-load conditions. Contact DATEL for demonstrated life-test data.
(14)
All models are fully operational and meet published specications, including "cold start," at –40°C.
Input
Input Voltage Range: (2)
D24 Models
18-36 Volts (24V nominal)
D48 Models
36-75 Volts (48V nominal)
Overvoltage Shutdown
D24 Models
37-41 Volts (39V typical)
D48 Models
None (3)
Start-Up Threshold: (4)
D24 Models
16-18 Volts (17.5V typical)
D48 Models
34-36 Volts (35V typical)
Undervoltage Shutdown: (4)
D24 Models
15.5-17.5 Volts (16.75V typical)
D48 Models
32.5-34.5 Volts (33.5V typical)
Input Current:
Normal Operating Conditions
See Ordering Guide
Inrush Transient
0.05A2sec maximum
Short Circuit
50-100mA
Standby Mode:
Off, UV, Thermal Shutdown
4-10mA
Input Reected Ripple Current (5)
8-50mAp-p
Internal Input Filter Type
Pi (0.01F - 2.2H - 3.3F)
Reverse-Polarity Protection (3)
1 minute duration, 5A maximum
Remote On/Off Control (Pin 2): (6)
Positive Logic ("P" Sufx Models)
On = open, open collector or
3.5-13V applied. IIN = 150A max.
Off = pulled low to 0-0.8V IIN = 2mA max.
Negative Logic ("N" Sufx Models)
On = pulled low to 0-0.8V IIN = 2mA max.
Off = open, open collector or
3.5-13V applied. IIN = 150A max.
Output
Minimum Loading
No load
Maximum Capacitive Loading (7)
20,000F
VOUT Accuracy (Full Load):
Initial
±1.25% maximum
Temperature Coefcient
±0.02% per °C
Extreme (8)
±3%
VOUT Trim Range (9)
+10%, –20%
Remote Sense Compensation (4)
+10%
Ripple/Noise (20MHz BW)
See Ordering Guide
Line/Load Regulation
See Ordering Guide
Efciency
See Ordering Guide
Isolation Voltage: Input-to-Output
2000Vdc minimum, D24 models
2250Vdc minimum, D48 models
Isolation Resistance
100M
Isolation Capacitance
470pF
Current Limit Inception (98% VOUT) (10)
8A Models
10 Amps, typical
10A Models
13 Amps, typical
15A Models
17-24 Amps (20A typical)
20A Models
21-29 Amps (25A typical)
25A Models
26.5-36 Amps (31A typical)
Short Circuit: (4)
Current
Hiccup
Duration
Continuous
Overvoltage Protection: (4)
Comparator feedback
1.5VOUT
1.8 Volts
1.8VOUT
2.2 Volts
2VOUT
2.4 Volts
2.5VOUT
3 Volts
3.3VOUT
4 Volts
5VOUT
6.2 Volts
12VOUT
14.5 Volts
相关PDF资料 |
PDF描述 |
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| ULQ-1.5/15-D48NM | 1-OUTPUT DC-DC REG PWR SUPPLY MODULE |
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| UM-LR-PC | CONNECTOR ACCESSORY |
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