IMP
ELECTRICAL SPECIFICATIONS (CONTINUED)
Output
Adjustment range*
10% minimum all outputs (manual)
(full module adjustment range using I2C)
Factory set point accuracy
I2C output program accuracy
Margining
1%
5%
4 - 6% nominal analog (single output module only)
Overall regulation
Ripple
0.4% or 20 mV max. (1500 W modules 1% max.) (36 W modules 4% maximum)
RMS: 0.1% or 10 mV, whichever is greater
Pk-Pk: 1.0% or 50 mV, whichever is greater
Bandwidth limited to 20 MHz
Dynamic response
Recovery time
< 2% or 100 mV, with 25% load step
To within 1% in < 300 µsec
Overcurrent protection**
Configurable through I2C (calibration required). Single output module and main output of the dual output module
105 - 120% of rated output current. Aux output of dual output module 105 - 140% of rated output current
Short-circuit protection
Overvoltage protection*
Protected for continuous short-circuit.
Recovery is automatic upon removal of short
Configurable through I2C
Single output module: 2 to 5.5 V 122 to 134%; 6 to 60 V 110 to 120%
Dual output module: 2 to 6 V 122 to 134%; 8 to 28 V 110 to 120%
Triple output module: 110 - 120% of highest voltage rating
Thermal protection*
(OTP and OTW)
Configurable through I2C
All outputs disabled when internal temp exceeds safe operating range. > 5 ms warning (AC OK signal) before
shutdown
Remote sense
Up to 0.5 V total drop (not available on triple output module)
Current share to within 2% of total rated current
5% of nominal. Configurable through I2C
Not required
Single wire parallel
DC OK*
Minimum load
Housekeeping bias voltage
Module inhibit*
5 Vdc @ 1.0 A max. present whenever AC input is applied (Optional 2.0 A available)
Configured and controlled through I2C
Switching frequency
Output/Output isolation
External sync
250k Hz accepts external sync signal
> 1 Megohm, 500 V
TTL clock input signal used to adjust switching frequency. Frequency 500 kHz
20%; Duty cycle 40 - 55%
*
Can be controlled via I2C
** Controlled via I2C but requires load calibration
INTERNAL PART NUMBER REFERENCE TABLE
Part #
Description
iMP8 Case
iMP1 Case
iMP4 Case
Case Code
iMP8
73-580-0001i
73-690-0001i
73-540-0001i
iMP1
iMP4
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