JAHW050A and JAHW075A Power Modules:
dc-dc Converters; 36 Vdc to 75 Vdc Input, 5 Vdc Output; 50 W to 75 W
Data Sheet
June 2000
Characteristic Curves
(continued)
OUTPUT CURRENT, I
O
(A) OUTPUT VOLTAGE, V
O
(V)
(5 A/div)
(100 mV/div)
V
I
= 36 V
OUTPUT VOLTAGE, V
O
(V)
(50 mV/div)
7.5 A
V
I
= 48 V
5.0 A
TIME, t (50
碌
s/div)
8-3203 (F)
V
I
= 75 V
TIME, t (2
碌s/div)
8-3201 (F)
Note: Tested with a 10 碌F tantalum and a 1.0 碌F ceramic capacitor
across the load.
Note: See Figure 13 for test conditions.
Figure 5. Typical JAHW050A Output Ripple Voltage
at Room Temperature, I
O
= I
O, max
Figure 7. Typical JAHW050A Transient Response
to Step Increase in Load from 50% to 75%
of I
O, max
at Room Temperature and 48 Vdc
Input (Waveform Averaged to Eliminate
Ripple Component.)
V
I
= 36 V
V
I
= 48 V
V
I
= 75 V
OUTPUT CURRENT, I
O
(A) OUTPUT VOLTAGE, V
O
(V)
(5 A/div)
(100 mV/div)
OUTPUT VOLTAGE, V
O
(V)
(50 mV/div)
TIME, t (100
碌
s/div)
TIME, t (2
碌s/div)
8-1884 (F)
8-1886 (F)
Note: See Figure 13 for test conditions.
Note: Tested with a 10 碌F tantalum and a 1.0 碌F ceramic capacitor
across the load.
Figure 6. Typical JAHW075A Output Ripple Voltage
at Room Temperature, I
O
= I
O, max
Figure 8. Typical JAHW075A Transient Response
to Step Increase in Load from 50% to 75%
of I
O, max
at Room Temperature and 48 Vdc
Input (Waveform Averaged to Eliminate
Ripple Component.)
Lucent Technologies Inc.
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