DTL-30753 Murata Power Solutions, DTL-30753 Datasheet

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DTL-30753

Manufacturer Part Number
DTL-30753
Description
Digital to Analog Converters - DAC Digit Programmable Electronic Load
Manufacturer
Murata Power Solutions
Datasheet

Specifications of DTL-30753

Product Category
Digital to Analog Converters - DAC
Conversion Rate
20 KHz
Resolution
12 bit
OBSOLETE PRODUCT
Features
Applications
12-bit, optically isolated (500Vdc),
CMOS/TTL-compatible serial input
0-2 Amp output in 500µA increments
Output voltage to 200 Volts
Output power to 100 Watts
10M minimum output impedance
±500µA offset error; ±0.1% gain error
100µsec full-scale step response
Update rates to 20kHz
Operate in parallel for higher power
Miniature, 2" x 2" metal package
Static/dynamic power-supply burn-in
Power-supply test and characterization
Battery capacity testing
Current-source testing
Capacitor discharge testing
Real-time load simulation
SERIAL DATA INPUT (SDI)
CONTROL STROBE (CS)
LATCH DATA (LD)
CLOCK (CLK)
+5V SUPPLY
GROUND
BUFFERS
INPUT
CONVERTER
ISOLATED
DC/DC
ISOLATORS
tronic load that offers high compliance voltage and unprecedented control over low-
level currents. The DTL3A is essentially a computer controlled current source that
sinks currents from 0 to 2 Amps, at loading voltages from 2.5 to 200 Volts, up to a
maximum power of 100 Watts. The DTL3A accepts a serialized, 12-bit, CMOS/TTL
digital input word, optically isolates (500Vdc) the data, latches it, and presents it to an
on-board, 12-bit, digital-to-analog (D/A) converter. The D/A output drives a near-ideal
(10M output impedance), voltage-controlled current source.
2A) of load current. Combined with the DTL3A’s ±500µA max. offset error and ±0.1%
max. gain error, this precise digital control gives users extraordinary command over
the generation of low-level load currents. A 100mA current, for example, is guaranteed
to have ±1mA accuracy over all speci ed load-voltage conditions.
are possible, and settling time for a full 2A step is 100µsec. The unit is housed in a
thermally ef cient, 2" x 2" x 0.5" metal package that has an aluminum baseplate with
through-hole spacers for easy pcb mounting and/or external heat-sink attachment.
the output/load voltage drop below the 2.5V minimum required for proper biasing,
an internal monitoring circuit activates the DTL3A's output Fault line. See DATEL’s
DTL2A-LC for compliance voltages as low as 0.6V.
ing building-block components for power-supply (AC/DC and DC/DC) and power-
component (diodes, FET’s, etc.) burn-in and test systems. They are an extremely
reliable, cost-effective solution that enables you to quickly con gure exible, impres-
sively accurate systems.
OPTO
DATEL’s new DTL3A is a digitally controlled, optically isolated, serial-input elec-
One LSB (least signi cant bit) of the D/A corresponds to a mere 500µA (0.025% of
The DTL3A has impressive speed performance. Digital update rates to 20kHz
The DTL-3A has an output compliance-voltage requirement 2.5 to 200V. Should
DATEL’s electronic loads, controller boards and companion software are outstand-
Figure 1. Simplifi ed Schematic
LATCH
DATA
Digitally Programmable, 2A/200V
12-BIT
D/A
100 Watt, Electronic Loads
UNDERVOLTAGE
DETECTION
AMPLIFIER
CURRENT
SENSOR
AND
DTL Series
+LOAD
+LOAD
–LOAD
–LOAD
DTL3A Model
POWER DEVICE
UNDER TEST
FAULT

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DTL-30753 Summary of contents

Page 1

... One LSB (least signi cant bit) of the D/A corresponds to a mere 500µA (0.025% of 2A) of load current. Combined with the DTL3A’s ±500µA max. offset error and ±0.1% max. gain error, this precise digital control gives users extraordinary command over the generation of low-level load currents. A 100mA current, for example, is guaranteed to have ± ...

Page 2

... Baseplate Temperature ( C) The horizontal axis of the above chart references the temperature of the DTL3A’s alumi- num baseplate. The device can continually dissipate up to 100 Watts if the baseplate is maintained at or below +50°C. At +25°C ambient temperature, with no heat sink or supplemental air fl ow, the DTL3A can reliably dissipate a continuous 10 Watts. ...

Page 3

... See Output Compliance Voltage and the Fault Line for details. Offset error is defi ned as the current sunk/sourced by the DTL3A’s output, under any output voltage conditions, when the digital input word is all "0's." ...

Page 4

... An "offset supply" can be inserted between the DTL3A’s –Load output (pins 8 and 9) and the power device under test (DUT) to "translate" the DTL3A’s 197.5V output/load voltage range. The offset supply must have adequate current capabilities and be connected with the polarities indicated in Figure 2 below. Under no circumstances should the voltage across the DTL3A’ ...

Page 5

... Figure 3. DTL3A Timing Diagram This product is subject to the following and the Refer to: Murata Power Solutions, Inc. makes no representation that the use of its products in the circuits described herein, or the use of other technical information contained herein, will not infringe upon existing or future patent rights. The descriptions contained herein do not imply the granting of licenses to make, use, or sell equipment constructed in accordance therewith. Specifi ...

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