Table 1-3. Supplemental Characteristics

Outputs

40 W Low

40 W High

80 W Low

 

80 W High

 

Voltage

Voltage

Voltage

 

Voltage

Temperature Coefficient:

 

 

 

 

Voltage

(60 ppm + 0.4 mV)/ °C

(60 ppm + 1 mV)/ °C

(60 ppm + 0.4 mV)/ °C

(60 ppm + 1 mV)/ °C

+Current

(160 ppm +0.2mA)/°C

(160 ppm +0.1 mA)/°C

(160 ppm +0.4mA)/°C

(160 ppm +0.2 mA)/°C

OVP

(130 ppm + 1 mV)/ °C

(130 ppm + 2 mV)/ °C

(130 ppm + 1 mV)/ °C

(130 ppm + 2 mV)/ °C

Readback Temperature Coefficient:

 

 

 

 

Voltage

(40 ppm +0.3 mV)/°C

(40 ppm +0.7 mV)/°C

(40 ppm +0.3 mV)/°C

(40 ppm +0.7 mV)/°C

 

+ 10 mV

+ 23 mV

+ 10 mV

 

+ 23 mV

+Current

(85 ppm +0.25 mA)/°C

(85 ppm +0.1 mA)/°C

(85 ppm +0.5 mA)/°C

(85 ppm +0.2 mA)/°C

 

+3 mA

+1 mA

+5 mA

 

+2 mA

-Current

(95 ppm + 0.3 mA)/°C

(95 ppm +0.1 mA)/°C

(95 ppm +0.6 mA)/°C

(95 ppm +0.2 mA)/°C

 

+3 mA

+1.2 mA

+6 mA

 

+2.3 mA

Long Term Drift: (In an 8 hour period following a 30 minute warmup):

 

 

 

Voltage

0.012% + 1 mV

0.012% + 1 mV

0.012% + 1 mV

0.012% + 1 mV

+ Current

0.032% + 2 mA

0.032% + 2 mA

0.032% + 4 mA

0.032% + 4 mA

Short Term Drift: (Within 30 minutes after a line and/or load change):

 

 

 

Voltage

0.042% + 2 mV

0.042% + 2 mV

0.042% + 2 mV

0.042% + 2 mV

+Current

0.11%+4 mA

0.11%+4 mA

0.11%+8 mA

0.11%+8 mA

Programmable OVP Ranges:

 

 

 

 

Load Cross Regulation:

0-23 V

0-55 V

0-23 V

0-55 V

 

 

 

 

 

 

Voltage

1 mV

2.5 mV

1 mV

2.5 mV

+Current

1 mA

0.5 mA

2 mA

1 mA

 

Output Response Characteristics: (See Figure 1-3)

 

 

 

 

Max Output

2 ms

6 ms

2 ms

6 ms

 

Programming

 

 

 

 

 

Response Time

 

 

 

 

 

Settling Band

20 mV

50 mV

20 mV

50 mV

 

Max Time Constant

250 μS

750 μS

250 μS

750 μS

 

DC Floating Voltage:

No output terminal may be more than 240 Vdc from any other terminal or from chassis ground. Also, no overvoltage terminal may be more than 240 Vdc from any other terminal or chassis ground.

Remote Sense Capability: (See wire size selection, page 47 and remote voltage sensing, page 48)

Outputs can maintain specifications with up to 1 volt drop per load lead except that the maximum voltage at the output terminals must not exceed the rated output voltage + 1 volt (see Figure 4-6). If the steady state voltage drop exceeds approximately 1.5 V on either load lead when remote sensing, a circuit will trip the OVP.

18 General Information

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HP 6623A, 6624A, 6621A manual Supplemental Characteristics, Outputs Low High Voltage Temperature Coefficient
Page 17 Page 19

6624A, 6621A, 6623A specifications

The HP 6623A, 6621A, and 6624A are precision DC power supplies widely recognized for their reliability and performance in various laboratory and industrial applications. These models are part of HP's 662X series, designed to cater to the needs of engineers, researchers, and technicians who require accurate power sources for their testing and development activities.

The main features of the HP 6623A, 6621A, and 6624A include their high stability, low ripple, and excellent load regulation, ensuring that the output voltage and current remain stable during testing. The power supplies provide multiple output channels, allowing users to power multiple devices simultaneously. The flexibility in setting voltage and current levels makes these models ideal for a wide range of applications, including semiconductor testing, device characterization, and system integration.

One of the standout technologies in the HP 662X series is the use of smart design techniques that minimize noise and enhance output performance. These power supplies incorporate advanced feedback mechanisms to maintain steady output, even under varying load conditions. Additionally, they feature programmable outputs, which means users can adjust the output levels through a connected computer or control system, streamlining the testing process and improving efficiency.

The HP 6623A model offers three independent outputs, with total power capabilities of 40 watts. It includes a 0-20V output, which can deliver up to 2A of current, along with two additional outputs that are adjustable. The 6621A provides a single output option, delivering a maximum of 20V and 2A, making it well-suited for simple applications where a single power source is required. In contrast, the HP 6624A stands out with its four independent output channels, providing a total of 60 watts, making it the most versatile of the three models.

Characteristics of these power supplies include user-friendly interfaces, allowing for easy configuration and monitoring of settings. LED indicators provide real-time feedback on voltage and current levels, enabling users to quickly assess the performance of their tests. Moreover, built-in protection features safeguard both the power supply and the connected devices from overvoltage and overcurrent conditions.

Overall, the HP 6623A, 6621A, and 6624A power supplies embody advanced engineering and design, making them invaluable tools for professionals looking for high-quality, reliable power sources for their electronic testing needs.
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