Table 60501-1. Specification and Supplemental Characteristics
SPECIFICATIONS
DC Input Rating:
Current: 0 to 30 A
Voltage: 3 to 60 V (minimum dc operation from 0 to 2 V for 0 to 30 A)
Power: 150 W at 40 °C (derated to 112 W at 55 °C)
A. OPERATING CHARACTERISTICS B. DERATED CURRENT DETAIL
Constant Current Mode:
Ranges: 0 to 3 A; and 0 to 30 A
Accuracy: (after 30 second wait): ± 0.1% ± 40 mA (both ranges)
Resolution: 0.8 mA (3 A range); 8 mA (30 A range)
Regulation: 10 mA (both ranges)
Temperature Coefficient: 100 ppm/°C ± 3 mA/°C (both ranges)
Constant Resistance Mode:
Ranges: 0.067 to 2 Ω; 2 Ω to 2 kΩ; and 20 Ω to 10 k
Accuracy: ± 0.8% ± 16 mΩ with ≥ 6 A at input (2 Ω range);
Resolution: 0.54 mΩ (2 Ω range); 0.14 mS (2 kΩ range); 0.014 mS (10 kΩ range)
Regulation: 10 mV with remote sensing (2 Ω range); 10 mA (2 k and 10 kΩ ranges)
Temperature Coefficient: 800 ppm/°C ± 0.8 mΩ/°C (2 Ω range);
Constant Voltage Mode:
Range: 0 to 60 V
Accuracy: ± 0.1% ± 50 mV
Resolution: 16 mV
Regulation: 5 mV (remote sense); 40 mV (local sense)
Temperature Coefficient: 100 ppm/°C ± 5 mV/°C
Ω
± 0.3% ± 5 mS with ≥ 6 V at input (2 k and 10 kΩ ranges)
300ppm/°C ± 0.5 mS/°C (2 k and 10 kΩ ranges)
2
Table 60501-1 Specifications and Supplemental Characteristics (continued)
Transient Operation:
Continuous Mode
Frequency Range: 0.25 Hz to 10 kHz
Frequency Resolution: 4%
Frequency Accuracy: 3%
Duty Cycle Range: 3% to 97% (0.25 Hz to 1 kHz); 6% to 94% (1 kHz to 10 kHz)
Duty Cycle Resolution: 4%
Duty Cycle Accuracy: 6% of setting ± 2%
Pulsed Mode
Pulse Width: 50
Transient Current Level (0 to 3 A and 0 to 30 A ranges):
Resolution: 13 mA (3 A range); 130 mA (30 A range)
Accuracy: ± 0.1% ± 40 mA (3 A range); ± 0.1% ± 200 mA (30 A range)
Temperature Coefficient: 100 ppm/°C ± 5 mA/°C
Transient Resistance Level (0.067 to 2 Ω, 2 Ω to 2 kΩ, and 20 Ω to 10 kΩ ranges):
µ
s ± 3% minimum; 4 s ± 3% maximum
Resolution: 8.6 mΩ (2 Ω range); 2.1 mS (2 kΩ range); 0.2 mS (10 kΩ range)
Accuracy: ± 0.8% + 16 mΩ with > 3 A at input (2 Ω range)
Transient Voltage Level (0 to 60 V):
Resolution: 260 mV
Accuracy: ± 0.1% ± 300 mV
Temperature Coefficient: 150 ppm/°C ± 5 mV/°C
Current Readback:
Resolution: 9 mA (via GPIB); 10 mA (front panel)
Accuracy: (after 30 minute wait): ± 0.06% ± 40 mA
Temperature Coefficient: 65 ppm/
Voltage Readback:
Resolution: 17 mV (via GPIB); 20 mV (front panel)
Accuracy: ± 0.05% ± 45 mV
Temperature Coefficient: 50 ppm/°C ± 1.2 mV/°C
Maximum Readback Capability: 65 to 70 V (typical)
± 0. 3% + 5 mS with ≥ 6 V at input (2 kΩ range)
± 0.3% + 5 mS with ≥ 6 V at input (10 kΩ range)
°
C ± 3 mA/ °C
Power Readback:
Accuracy: ±0.2% ± 2 W
3
Table 60501-1 Specifications and Supplemental Characteristics (continued)
External Analog Programming 0 to 10 V (dc or ac):
Bandwidth: 10 kHz (3 db frequency)
Accuracy: ± 4.5% ± 40 mA (0 to 3 A range)
± 4.5% ± 130 mA (0 to 30 A range)
± 0.8% ± 200 mV (0 to 60 V range)
Temperature Coefficient: 100 ppm/°C ± 3 mA/°C (current ranges)
100 ppm/°C ± 1 mV/°C (voltage range)
External Current Monitor (0 to 10 V):
Accuracy: ± 4% ± 40 mA (referenced to analog common)
Temperature Coefficient: 60 ppm/°C ± 3 mA/°C
External Voltage Monitor (0 to 10 V):
Accuracy: ± 0.25% ± 40 mV (referenced to analog common)
Temperature Coefficient: 50 ppm/
Remote Sensing: 5 Vdc maximum between sense and input binding posts
Maximum Input Levels:
Current: 30.6 A (programmable to lower limits)
Voltage: 75 V
°
C ± 0.2 mV/ °C
Minimum Operating Voltage: 2 V (derated to 0 V at 0 A)
PARD (20 Hz to 10 MHz noise):
Current: 2 mA rms/20 mA p-p
Voltage: 5 mV rms
DC Isolation Voltage: ± 240 Vdc between + or - input binding post and chassis ground
Digital Inputs:
Vlo: 0.9 V maximum at Ilo = -1 mA
Vhi 3.15 V minimum (pull-up resistor on input)
Digital Outputs:
Vlo: 0.72 V max imum at Ilo = 1 mA
Vhi: 4.4 V minimum at Ilo - 20 µA
SUPPLEMENTAL CHARACTERISTICS
Programmable Slew Rate (For any given input transition, the time required will be either the total slew time or a minimum
transition time, whichever is longer. The minimum transition time increases when operating with input currents under 1 A.
The following are typical values; ±25% tolerance):
4
Table 60501-1 Specifications and Supplemental Characteristics (continued)
Current Slew Rate:*
Rate # 30 A Range Step 3 A Range Step Transition Time
1 0.5 A/ms 0.05 A/s 8.0 ms
2 1.2 A/ms 0.12 A/s 3.2 ms
3 2.5 A/ms 0.25 A/ms 1.6 ms
4 5 A/ms 0.5 A/ms
5 12 A/ms 1.2 A/ms
6 25 A/ms 2.5 A/ms
7
8
9
10
11
12
Voltage Slew Rate:
Rate # Voltage Range Step Transition Time*
1 1 V/ms 8.0 ms
2 2.5 V/ms 3.2 ms
3 5 V/ms 1.6 ms
4 10 V/ms
5 25 V/ms
6 50 V/ms
7
8
9
0.05 A/µs
0.12 A/µs
0.25 A/µs
0.5 A/µs 0.05 A/µs 12 µs
1.2 A/µs 0.12 A/µs 12 µs
2.5 A/µs 0.25 A/µs 12 µs
*AC performance specified from 3 to 60 V.
0.1 V/µs 85 µs
0.25 V/µs 85 µS
0.5 V/µs 85 µS
*Transition time based on low capacitance current source.
5 A/ms
12 A/ms
25 A/ms
800 µs
320 µs
160 µs
800 µs
320 µs
160 µs
80 µs
32 µs
16 µs
Resistance Slew Rate (2 Ω range): Uses the value programmed for voltage slew rate.
Resistance Slew Rate (2 k and 10 kΩ ranges): Uses the value programmed for current slew rate.
Transient Current Overshoot (When programmed from 0A):
Range Transient Current Level Current Slew Rate Overshoot*
30 A 3-30 A All slew rates 0
1.5 A
1.5 A
3 A 3 A All slew rates 0
1.5 A
1.5 A
*Overshoot may be higher during first five seconds of programming if unit has bee n operating at full current. O ve rshoot
values assume a total inductance of lµH, or less, in the load leads connected to the D.U.T.
0.5 A/µs to 2.5 A/µs
0.5 A/ms to 0.25 A/µs
0.13 A/µs and 0.25 A/µs
0.05 A/ms and 0.05 A/µs
5
6%
0
3%
0
Table 60501-1 Specifications and Supplemental Characteristics (continued)
Source Turn-On Current Overshoot: Less than 10% of final value (in CC and CR modes when connected to power
supplies with voltage rise times of greater than 500µs).
Programmable Short Circuit: 0.066 Ω (0.04 Ω typical)
Programmable Open Circuit: 20 kΩ (typical)
Drift Stability (over an 8 hour interval):
Current: ± 0.03% ± 5 mA
Voltage: ± 0.01% ± 10 mV
Reverse Current Capacity: 50 A when unit is on; 20 A when unit is off
Weight: 3.2 kg (7 lbs.)
Table 60501-2. Programming Ranges
Function Front Panel Front Panel HPSL Command Range of Values
Key Display (Short Form)
Constant Current
Set Range C:RNG value "CURR:RANG value"
Low Range
High Range
Set Main Level CURR value "CURR value"
Low Range 0 to 3 A
High Range 0 to 30 A
Set Slew Rate
Low Range
High Range
Set Transient Level C:TLV value "CURR:TLEV value" same as main level
*Set Triggered Leve l "CURR:TRIG value " same as main level
Constant Resistance
Set Range R:RNG value "RES:RANG value"
Low Range
Middle Range
High Range
Set Main Level RES value "RES value"
Low Range
Middle Range
High Range
Set Slew Rate
Low Range V:SLW value "VOLT:SLEW value" sa me as voltage slew
Middle/High Range C:SLW value "CURR:SLEW value" same as curre nt slew
Set Transient Level R:TLV value "RES:TLEV value" same as main level
*Set Triggered Leve l "RES:TRIG value" same as main level
Constant Voltage
Set Main Level VOLT value "VOLT value" 0 to 60 V
Set Slew Rate
Set Transient Level V:TLV value "VOLT:TLEV value" same as main level
*Set Triggered Level "VOLT:TRIG value" same as main level
(shift)
(shift)
(shift)
C:SLW value "CURR:SLEW value"
V:SLW value "VOLT:SLEW value"
≥
0 and ≤ 3 A
> 3 A and ≤ 30 A
0.00005 to 0.25 (A/µs)
0.0005 to 2.5 (A/µs)
≥
0 and ≤ 2
> 2 Ω and ≤ 2 k
>2 kΩ and ≤ 10 k
0 to 2
2 Ω to 2 k
20 Ω to 10 k
0.001 to 0.5 (V/µs)
Ω
Ω
Ω
Ω
Ω
Ω
6
Table 60501-2. Programming Ranges (continued)
Transient Operation
Set Frequency FREQ value "T RAN:FREQ value" 0.25 Hz to 1 0 kHz
Set Duty Cycle
*Set Pulse Width "TRAN:TWID value" 0.00005 to 4 s
Trigger Operation
*Set Trigger Period "TRIG:TIM value" 0.000008 to 4 s
Current Protection
*Set Current Level "CURR:PROT value" 0 to 30.6 A
*Set Delay Time "CURR:PROT:DEL value" 0 to 60 s
Function Settings Function Setting
CURR level 0 A Mode (CC, CR, CV) CC
CURR transient level 0 A Input (on/off) on
*CURR slew rate
CURR range 30 A
*CURR protection (on/off) off ***TRAN mode continuou s
**CURR protection level 30.6 A (continuous, pulse, toggle)
**CURR protection delay 15 s T RAN frequency 1 kHz
RES level
RES transient level
RES range
VOLT level 60 V **TRIG period 0.001 s
VOLT transient level 60 V **PORT0 output (on/off) off (logic 0)
VOLT slew rate
The *RST command resets the CURR slew rate to 2.5 A/µ, not to the factory default.
(shift)
*Can only be programmed remotely via the GPIB.
DCYCLE value "TRAN:DCYC value" 3-97% (0.25 Hz-1 kHz)
6-94% (1 kHz-10 kHz)
Table 60501-3. Factory Default Settings
0.5 A/µs
Ω
2 k
Ω
2 k
Ω
2 k
5 V/µs
Short (on/off) off
Transient operation (on/off) off
TRAN duty cycle 50%
**TRAN pulse width 0.5 ms
**TRIG source hold
(bus, external, hold, timer, line)
**CAL mode (on/off) off
**Can only be programmed remotely via the GPIB.
***Cont inuous transient mode is the only mode availabl e at the front pan el. P ulsed, toggled, and c ontinuous modes c an
all be programmed remotely via the GPIB.
7
Table 60501-4. Calibration Information
Ranges and
Calibration Points
High Current Range Hi_curr_rng 30 5 V/31 A 100 A
High Current Offset Hi_curr_offset 0.013
Low Current Range Lo_curr_rng 3 5 V/10 A 15 A
Low Current Offset Lo_curr_offset 0.013
Voltage Range N/A N/A 61 V/2 A N/A
Voltage Hi point Volt_hipt 60
Voltage Lo point Volt_lopt 2.7
Low Resistance Range Lo_res_rng 2 15 V/5.5 A 15 A
Low Resistance Hi point Lo_res_hipt 1.9
Low Resistance Lo point Lo_res_lopt 0.067
Middle Resistance Range Mid_res_rng 20 10.9 V/8 A 15 A
Middle Resistance Hi point Mid_res_hipt 60
Middle Resistance Lo point Mid_res_lopt 2.1
High Resistance Range Hi_res_rng 2002 60 V/5 A 15 A
High Resistance Hi point Hi_res_hipt 200
High Resistance Lo point Hi_res_lopt 24
Variables Variables
Value
Power Supply
Settings
Current
Shunt
8
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