|Category||Power Management => DC-DC Converters|
|Description||DC/DC Power Converters|
|Datasheet||Download UNR-1.5/20-D5 datasheet
Output: Non-isolated @ 20 Amps or 20 Amps Input Voltage: 4.75-5.5V (5V nominal) Package: x 0.49" open-frame with attached heat sink Full synchronous-rectifier topology Efficiencies as high as 91% Noise as low as 75mVp-p Stable no-load operation Excellent thermal derating Output short-circuit protection On/off control, trim and sense functions UL60950/EN60950 certified Qual tested, HALT tested, EMI tested
DATEL's 30-66W UNR Series deliver an excellent solution to situations in which users of modern DSP's and CPLD's requiring to 20 Amps of "low-voltage" (1.5-3.3V) current are constrained to drawing that power from a legacy 5V bus. These are non-isolated DC/DC converters that deliver to 20 Amps of 1.5-3.3V current from a 5V input. Combining a modern, fully synchronous buck topology with a unique, integrated-metal-technology (IMT) package, the automatically assembled 30-66W UNR's deliver high efficiency (to 91%), excellent thermal performance (to +70°C with 100lfm air flow), and low cost. These converters require no compromises. They are fully line (±0.1%) and load (±0.5%) regulated and feature low noise (typically 75mVp-p) and quick step response (50msec). Their feature set includes VOUT trim capability, an on/off control function, output remote-sense pins, and output overcurrent detection and shortcircuit protection ("hiccup" technique with auto-recovery). Their unique package integrates an anodized aluminum heat sink with the circuit's thermal-clad aluminum baseplate. With minimal air flow (100lfm), all models deliver full output power/current to +65°C. All UNR 30-66W Open-Frame DC/DC Converters are UL1950/EN60950 certified. Safety certifications, EMC compliance test reports, and qualification (including HALT) test reports are available upon request.INPUT RETURN (8) 10.5 VOLTAGE BOOST +VCC ON/OFF CONTROL (6) PWM CONTROLLER OVERCURRENT DETECTION
DATEL, Inc., Mansfield, MA 02048 (USA) Tel: (508)339-3000, (800)233-2765 Fax: (508)339-6356 Email: firstname.lastname@example.org Internet: www.datel.com
Typical = +25°C under nominal line voltage and full-load conditions, unless otherwise noted. All models are tested and specified with a 22µF output capacitor with a 200m ESR and a 4000µF input capacitor with 9.75Arms ripple-current rating and 20m ESR. See I/O Filtering and Noise Reduction for more details.
Ripple/Noise (R/N) is tested/specified over a 20MHz bandwidth. Output noise may be further reduced by installing additional external output caps. See I/O Filtering and Noise Reduction. These devices have no minimum-load requirements and will regulate under no-load conditions. Nominal line voltage, no-load/full-load conditions.
Output Configuration: U = Unipolar Non-Isolated Nominal Output Voltage: or 3.3 Volts Maximum Rated Output Current in Amps Input Voltage Range: to 5.5 Volts (5V nominal)
I/O Connections Pin Function P26 Trim Sense +Sense +Output Output Return On/Off Control +Input Input ReturnTypical = +25°C under nominal line voltage and full-load conditions unless noted.
Input Voltage: Continuous Transient (100msec) Input Reverse-Polarity Protection Input/Output Overvoltage Protection Output Current
Input Voltage Range Input Current: Normal Operating Conditions Standby/Off Mode Input Ripple Current: UNR-3.3/15-D5 UNR-3.3/20-D5 Input Filter Type Overvoltage Protection Reverse-Polarity Protection On/Off Control (Pin to 5.5 Volts (5V nominal) See Ordering Guide TBD 100mAp-p 150mAp-p Capacitive (74µF) None On = open +4V to +VIN; IIN = TBD Off to 1V; IIN = TBD
5 Volts 7 Volts None Current limited. Devices can withstand a sustained output short circuit without damage. +105°C +300°CStorage Temperature Lead Temperature (Soldering, 10 sec.)
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 Specifications Table is not implied.
VOUT Accuracy (50% load) VOUT Trim Range (3.3VOUT models): Trim pin tied to +Output Trim pin tied to Output Return Minimum Loading Temperature Coefficient Ripple/Noise (20MHz BW) Line/Load Regulation Efficiency Overcurrent Protection: Technique 15 Amp Models 20 Amp Models Average Output Current Transient Response to 75% step) Start-Up Time: VIN to VOUT On/Off to VOUT Switching Frequency Operating Temperature (Ambient): Without Derating With Derating Storage Temperature Dimensions Shielding Attached Heatsink Circuit Board Pin Material Weight ±1% maximum VOUT = <1.53 Volts VOUT = >3.6 Volts No load ±0.02% per °C See Ordering Guide See Ordering Guide See Ordering Guide "Hiccup" with auto-recovery 173% (160% typical) 130% (120% typical) 1 Amp typical, 3 Amps maximum
Return Current Paths These are non-isolated DC/DC converters. The Input Return and Output Return pins are connected to each other internally. To the extent possible, all input and load currents should be returned through the Input Return and Output Return, respectively (via low-impedance runs). Any control signals applied to the On/Off Control pin should be referenced to Input/Output Return.
All models in the UNR 30-66W Series are tested and specified with an external 22µF output capacitor (200m ESR) and a 4000µF input capacitor with a 9.75Arms ripple-current rating. External input capacitance is required and must be rated to handle the input ripple current as follows:
(The large value of the input capacitor is due mainly to output characteristics of DATEL's outgoing ATE test system. Ripple current rating is an important consideration for the end user.) In critical applications, input/output ripple/ noise may be further reduced by installing additional I/O caps. External input capacitors serve primarily as energy-storage elements. They should be selected for bulk capacitance (at appropriate frequencies), low ESR, and high rms-ripple-current ratings. The switching nature of modern DC/DC converters requires that dc input voltage sources have low ac impedance, and highly inductive source impedances can affect system stability. Your specific system configuration may necessitate additional considerations. Output ripple/noise (also referred to as periodic and random deviations or PARD) can be reduced below specified limits using filtering techniques, the simplest of which is the installation of additional external output capacitors. Output capacitors function as true filter elements and should be selected for bulk capacitance, low ESR, and appropriate frequency response. Any scope measurements of PARD should be made directly at the DC/DC output pins with scope probe ground less than 0.5" in length.
x 12.45mm) Open-frame Black anodized aluminum Single-layer conductors on aluminum base Brass, solder dip alloy 1.7 ounces (48.2 grams)
All models are tested and specified with a 22µF output capacitor with a 200m ESR and a 4000µF input capacitor with 9.75Arms ripple-current rating and 20m ESR. See I/O Filtering and Noise Reduction for more details. These devices have no minimum-load requirements and will regulate under no-load conditions. See Output Overcurrent Detection for details. See On/Off Control for details. See Output Voltage Trimming for details. See Start-Up Time for details. See Temperature Derating for details.
|Related products with the same datasheet|
|Some Part number from the same manufacture Datel, Inc.|
|UNR-1.8/10-D3SM DC/DC Power Converters|
|UNR-2.5/12-D5 Single Output Unr Series Non-isolated, 5v-to-2.5v 12 Amp, DC/DC Converters|
|UNR-2.5/15-D5 DC/DC Power Converters|
|UNR-3.3/10-D5 Single Output Unr Series Non-isolated, 5v-to-3.3v 8 And 10 Amp, DC/DC Converters|
|UNR-3.3/10-D5SM DC/DC Power Converters|
|UNR-3.3/12-D5 Non-isolated, 5v-to-3.3v 12 Amp, DC/DC Converters|
|UNR-3.3/12000-D5 3.3V Non-isolated, 8-40W, Single Output DC/DC Converter|
|UNR-3.3/15-D5 DC/DC Power Converters|
|UNR-3.3/2500-D12 3.3V Non-isolated, 8-40W, Single Output DC/DC Converter|
|UNR-3.3/3-D12 DC/DC Power Converters|
|UNR-3.3/3000-D5 3.3V Non-isolated, 8-40W, Single Output DC/DC Converter|
|UNR-3.3/8-D12SM DC/DC Power Converters|
|UNR-3.3/8-D5 Single Output Unr Series Non-isolated, 5v-to-3.3v 8 And 10 Amp, DC/DC Converters|
ACA5-20PC-X-AC1-RL : Segment Displays Digital Panel Meters
ADS-927GM : 1mhz, Low-power Sampling ADC: 14-bit
DMS-30194 : 200mV 3 1/2 Digit, LCD Display Digital Panel Voltmeter
DMS-30LCDA-4/20B : Digital Panel Meters Digital Panel Meters
DMS-40LCD-1 : Digital Panel Meters Digital Panel Meters
DSD-40BCD-XX : Segment Displays
DWR-5/2.65-3.3/3-D24 : DC/DC Power Converters
PC-414VB : Boards->Data Acquisition
TWR-5/3000-12/500-D12A : 3000mA 20W, Triple Output DC/DC Converter
UNR-1.5/10-D3T : DC/DC Power Converters
UST-5/500-D5 : Single Output Ust Model, 3w, DC/DC Converters
BQ2011KSN-D121 : Gas Gauges. ti BQ2011K, Nicd Gas Gauge For High Discharge Rates (>5A), Small Pack Capacities (<2Ah).
HT7660 : Voltage Inverter/Converter. CMOS Switched-capacitor Voltage Converter.
KIA7029 : Bipolar Linear Integrated Circuit ( Voltage Detector ). Function of this IC is accurately resetting the system after detecting voltage at the time of switching power on and instantaneous power off in various CPU systems and other logic systems. Current Consumption is Low. ICCL=300 A Typ. ICCH=30 A Typ. Resetting Output Minimum Guarantee Voltage is Low 0.8V Typ. Hysteresis Voltage is Provided. 50mV Typ. Reset.
LM3352 : Switched Capacitor Converters. LM3352 - Regulated 200mA Buck-boost Switched Capacitor DC/DC Converter, Package: Evaluation Board, Pin Nb=-.
LT1610 : SEPIC. LT1610, 0.45A, 1.7MHz, Single Cell Micropower DC/DC Converter. Uses Tiny Capacitors and Inductor Internally Compensated Low Quiescent Current: 30µA Operates with VIN as Low at 30mA from a Single Cell at 200mA from 3.3V High Output Voltage Capability: to 28V Low Shutdown Current: < 1µA Automatic Burst ModeTM Switching at Light Load Low VCESAT Switch: 300mA 8-Lead MSOP and SO Packages The is a micropower fixed.
MTB011 : Power Ics / Solenoid/motor Drivers (MTA,MTB Series). Four output driver per package TTL/CMOS compatible inputs (High active) APPLICATION Head needle drive for printer Stepping motor drive for Output Voltage Output Current Reverse Voltage(flyback diode) Forward Current(each flyback diode) Forward Current(each common terminal) Output Current(each GND terminal) LogicSupplyVoltage LogicInputVoltage EnableInputVoltage.
MTR : . to +125°C operation to 40 VDC input Fully isolated Magnetic feedback Fixed frequency 600 kHz typical Topology Single Ended Forward 50 V for 50 ms transient protection Inhibit and synchronization functions Indefinite short circuit protection to 30 watts output power Trim and remote sense on single output models to 84% efficiency Size (max): Non-flanged:.
NCP1501DMR2 : Converters. Dual Mode Buck DC-DC Converter And LDO, Package: Micro-8, Pins=8.
UC1823B : High Speed PWM Controller. Improved versions of the UC3823/UC3825 PWMs Compatible with Voltage or Current-Mode Topologies Practical Operation at Switching Frequencies 1MHz 50ns Propagation Delay to Output High Current Dual Totem Pole Outputs (2A Peak) Trimmed Oscillator Discharge Current Low 100µA Startup Current Pulse-by-Pulse Current Limiting Comparator Latched Overcurrent.
VUO68 : Eco-pac (tm) Three Phase Rectifier Bridge. Test Conditions = 100°C, module TVJ = 0 TVJ = TVJM ms (50 Hz), sine ms (60 Hz), sine ms (50 Hz), sine ms (60 Hz), sine ms (50 Hz), sine ms (60 Hz), sine ms (50 Hz), sine ms (60 Hz), sine Package with DCB ceramic base plate Isolation voltage 3000 V~ Planar passivated chips Low forward voltage drop Leads suitable for PC board soldering Applications Supplies.
NJU7380 : Stepper Motor Controller NJU7380 is a controller with transrator which convert from input step and direction pulse to driver's phase signal for full and half step. NJU7380 translates from pulse input signal (Serial interface) to phase signal input, so NJM3700 series dual channel bipolar drivers or NJM2672 dual H-bridge driver can be easily controlled.
NCP1282 : The NCP1282 is a voltage mode controller designed for ac-dc or dc-dc converters requiring high efficiency and low parts count. This controller incorporates two in phase outputs with an overlap delay to prevent simultaneous conduction and facilitates soft switching. The main output is designed for driving a forward converter primary MOSFET. The secondary.
ISL9105 : ISL9105 is a 600mA, 1.6MHz step-down regulator that is ideal for powering low-voltage microprocessors in handheld devices such as PDAs and cellular phones. It is optimized for generating low output voltages down to 0.8V. The supply voltage range is from 2.7V to 5.5V allowing the use of a single Li+ cell, three NiMH cells or a regulated 5V input. It has a guaranteed.
LTC3813 : 100V Current Mode Synchronous Step-Up Controller The LTC3813 is a synchronous step-up switching regulator controller that can generate output voltages up to 100V. The LTC3813 uses a constant off-time peak current control architecture with accurate cycle-by-cycle current limit, without requiring a sense resistor..
TLV70718P : The TLV702xx Series Of Low-dropout (LDO) Linear Regulators Are Low Quiescent Current Devices With Excellent Line And Load Transient Performance. These LDOs Are Designed For Power-sensitive Applications. A Precision Bandgap And Error Amplifier Provides Overall 2% Accuracy. Low Output Noise, Very High Power-supply Rejection Ratio (PSRR), And Low-dropout.
IRMCK171 : High Performance Sensorless Motor Control IC IRMCK171 is a high performance One Time Programmable ROM based motion control IC designed primarily for appliance applications. IRMCK171 is designed to achieve low cost yet high performance control solutions for advanced inverterized appliance motor control. IRMCK171 contains two computation engines. One is the Flexible.