Application Notes
Control Signal Characteristics
Parameter
Symbol
Test Condition
Min
Typ
Max
Units
Enable_L
Enable_L Source Current
Enable_L Voltage Low
Enable_L Voltage High
Enable_L Low (Turn On Delay)
Enable_L Low (Output Voltage)
Bias Current (12 Volt)
DC_OK_H High
DC_OK_H Low
Fault_H High (OVP latched)
Fault_H Low
Fault_H Source Current
(OVP latched)
V
I
= 5V, I
O
= 24A
—
—
2.6
—
2.458
V
I
= 5V, I
O
= 24A
—
V
I
= 3.43V, I
O
= 24A, V
O
=
≥2.1V
3.3
V
I
= 3.43V, I
O
= 24A, V
O
=
≤1.8V
—
V
I
= 3.43V, I
O
= 24A
3.3
—
10
—
—
—
—
2.495
70
—
—
—
—
—
1.0
0.8
—
10
2.532
100
—
0.8
5
0.8
—
mA
V
V
ms
V
mA
V
V
V
V
mA
I
bias
Note: Fault–H occurs when the output voltage level is over the OVP threshold, pass transistor in the converter is shorted when
input voltage is applied, or when a difference between input to output voltage exceeds 2.4 volts with the input voltage only at 3.3V
nominal and not at 5V nominal.
Enable L:
This input signal is used to enable the output
of the converter when activated (active Low). The
signal is referenced to output side (-Sense) or GND.
Enable Circuit Turn-On Time
ON >5V
OFF
≤0.6V
Turn-On Time
5V
TURN ON TIME FROM
V
ENABLE
GOING LOW
Enable
To V
ENABLE
Pin
2N7000
or
Equivalent
To (–)
V
OUT
10%
0.8V
Time
ON/OFF
90%
Regulation Band
Time
T
ON
Output Load Conditions
Aries Series, Page 5
WWW.GALAXYPWR.COM
Part No. 99–001 Rev. 2.2
GALAXY [ GALAXY POWER, INC. ]
