2308 KEITHLEY, 2308 Datasheet

2308

Manufacturer Part Number

2308

Description

58T8428

Manufacturer

KEITHLEY

Datasheet

1.2308.pdf (7 pages)

Specifications of 2308

No. Of Outputs

Output Voltage

15V

Output Voltage 2

15V

Output Current

Output Current 2

Load Regulation

0.01%

Length

411mm

Width

213mm

Height

89mm

Weight

3.2kg

Power Supply Output Type

Variable

Power Rating

50W

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Download datasheet (498Kb)

•

1.888.KEITHLEY

2308

Specialized dual-channel power

supply for design and testing

of portable, battery-operated

devices

Ultra-fast response to pulsed

load operation

Speed-optimized command set

reduces test times

Variable output resistance for

simulating an actual battery’s

output response

Simulate a discharged battery

and test charge control circuit

performance with both a

battery supply that can sink up

to 3A and a charger supply

Pulse peak, average, and

baseline current measurements

Integrating A/D converter for

more precise measurements

100nA current measurement

sensitivity

Analog output for complete

load current waveform

characterization

Catch production wiring

problems immediately with

open sense-lead detection

Built-in digital voltmeter

Four built-in digital control lines

w w w.keithley.com

(U.S. only)

The Model 2308 offers a complete solution for portable device sourcing and load current measure-

ment. It has two independent power supply channels: one is optimized to simulate a battery; the

second channel is optimized to perform like a charger for a rechargeable battery. The battery chan-

nel’s variable output resistance can be used to simulate the internal resistance of a battery so design

and test engineers can simulate a battery’s output for testing devices under realistic operating con-

ditions. This channel also sinks current to simulate a discharged battery. The charger channel can

supply a voltage to test a portable device’s battery charge control circuitry, with the battery channel

acting as the discharged battery load.

In addition to maintaining output voltage levels under difficult load conditions, the Model 2308

can measure a wide dynamic range of load current levels and can measure narrow current pulses

(or pulses as narrow as 50µs). That makes it ideal for characterizing device power consumption by

making low-level sleep mode measurements as well as pulsed operating load currents.

Maximize production yield with fast response to load changes

Mobile phones, other portable devices (such as Bluetooth headsets, MP3 players, etc.), and RF com-

ponents such as power amplifiers, power transistors, and transmitter modules experience large

instantaneous load changes when they transition from a standby state to full power operation. For a

mobile phone, the load current can change from

a 100mA standby current to a 1A transmission

current or a 10× (1000%) increase in the load

current. The Model 2308 maintains a reliable,

stable level of voltage output, even when the

DUT produces large load current changes and/or

has a pulsed operating mode.

The Model 2308’s fast recovery from load

changes helps prevent the causes of false failures

and destroyed devices in production test as well

as field failure quality problems due to compro-

mised components. The Model 2308 assures you

of a stable, constant voltage source to maximize

production yield and minimize production retest

and rework costs.

Portable Device Battery/Charger Simulator

G R E A T E R

M E A S U R E

The Model 2308 Portable Device Battery/Charger

Simulator is optimized for use in testing mobile

phones and other portable, battery-operated

devices. When a device-under-test (DUT) transi-

tions nearly instantaneously from a sleep or

standby mode to the full power transmit state,

the Model 2308’s rapid response to load changes

means there’s little transient voltage drop from

the programmed output voltage and the output

recovers quickly. This fast response is particu-

larly critical when testing portable devices with

a pulsed mode of operation because it allows

the device to perform properly while it’s being

tested. In contrast, the slow-responding source

voltage typical of conventional power supplies

causes the DUT to perform improperly, lead-

ing to production yield problems and costly

retesting.

APPLICATIONS

• Design and test of a wide

• Design and test of electronic

O F

range of consumer electronics,

including:

– Mobile phones, mobile radios,

– MP3 players, portable digital

components such as RFIC power

amplifiers, RF power transistors,

and baseband and wireless

chipsets for portable wireless

devices

cordless phones, and Bluetooth

headsets

assistants (PDAs), digital

cameras, GPS receivers, and

notebook computers

C O N F I D E N C E

Related parts for 2308

2308 Summary of contents

Page 1

... Portable Device Battery/Charger Simulator The Model 2308 offers a complete solution for portable device sourcing and load current measure- ment. It has two independent power supply channels: one is optimized to simulate a battery; the second channel is optimized to perform like a charger for a rechargeable battery. The battery chan- nel’ ...

Page 2

... Compare the response of a conventional power supply (left) with the response of a Model 2308 (right) when both are powering a device operating on the EDGE mobile phone standard. Note how the conventional power supply distorts the load current and cannot maintain a stable source voltage, which in turn distorts the RF output signal ...

Page 3

... Need to analyze a device’s circuitry during the power-up phase as it transi- tions from a sleep mode or an off-state? The Model 2308’s pulse step cur- rent function has the speed needed to measure the load current start-up levels in a single device start-up so that the measurements can be per- formed in production without an increase in test time ...

Page 4

... For many applications, the Model 2308 can eliminate the need for a separate DMM. The digital outputs the Model 2308 provides can sink up to 100mA to con- trol relays. External relays can be powered either by the internal 5V source or an external source with a maximum voltage of 24V ...

Page 5

... OUTPUT #1 (Battery Channel): DC VOLTAGE OUTPUT (1 Year, 23°C ± 5°C) OUTPUT VOLTAGE +15VDC. OUTPUT ACCURACY: (0.05% + 3mV). PROGRAMMING RESOLUTION: 1mV. READBACK ACCURACY 1 : ±(0.05% + 3mV). READBACK RESOLUTION: 1mV. OUTPUT VOLTAGE SETTLING TIME: 5ms to within stated accuracy. LOAD REGULATION: 0.01% + 2mV. LINE REGULATION: 0.5mV. ...

Page 6

... OUTPUT #2 (Charger Channel) DC VOLTAGE OUTPUT (1 Year, 23°C ± 5°C) OUTPUT VOLTAGE +15VDC. OUTPUT ACCURACY: ±(0.05% + 10mV). PROGRAMMING RESOLUTION: 10mV. READBACK ACCURACY : ±(0.05% + 3mV). 1 READBACK RESOLUTION: 1mV. OUTPUT VOLTAGE SETTLING TIME: 5ms to within stated accuracy. LOAD REGULATION: 0.01% + 2mV. ...

Page 7

... OUTPUT #2 (Charger Channel) (continued) LONG INTEGRATION MODE CURRENT MEASUREMENT MEASUREMENT TIME, 60Hz (50Hz): 850ms (840ms seconds in 1ms steps. DIGITAL VOLTMETER INPUT (1 Year, 23°C ± 5°C) INPUT VOLTAGE RANGE: –5 to +30VDC. INPUT IMPEDANCE: 2MW typical. MAX. VOLTAGE (either input terminal) WITH RESPECT TO OUTPUT LOW: –5V, +30V. ...

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