HUMMER SERIES
40 OR 70 WATTS
ABSOLUTE MAXIMUM RATINGS
H
OLD
U
P
M
ODULE
SYNC AND INHIBIT
Sync (HUM-70 only)
• Range 525 min to 625 max kHz
• Duty cycle 40% min to 60% max
• Logic low 0.8V, max
• Logic high 4.5 V, min
• Referenced to input common
• If sync is not used, leave unconnected
Inhibit TTL Open Collector
• Logic low (output disabled)
Logic low voltage 0.8 V max
Inhibit pin current 15 mA
• Referenced to input common
• Logic high (output enabled)
Open circuit voltage 10 V typical
Output Power
• HUM-40 40 watts
* HUM-70 70 watts
Input Voltage Range
• 12 to 50 continuous
• 80 V for up to 50 ms
Lead Soldering Temperature (10 sec per lead)
• 300°C
Storage Temperature Range (Case)
• –65°C to +135°C
RECOMMENDED OPERATING CONDITIONS
Input Voltage Range
• 12 to 40 VDC continuous
Case Operating Temperature (Tc)
• –55 to +125°C full power
Electrical Characteristics: 25°C Tc, 28 VDC Vin, 100% load, free run, unless otherwise specified.
HUM-40
PARAMETER
OUTPUT VOLTAGE
OUTPUT POWER
INPUT VOLTAGE
INPUT RIPPLE CURRENT
INPUT CURRENT
CONDITION
CEXT TERMINAL
CONTINUOUS
PEAK, 2 SEC
CONTINUOUS
TRANSIENT 50 ms
2 MHz Bandwidth
V
IN
= 28V, VCS OPEN
V
IN
= 28V, INHIBITED
V
IN
= 12V, FULL LOAD
V
IN
= 40V, FULL LOAD
EFFICIENCY
V
IN
= 22V, FULL LOAD
V
IN
= 12V, FULL LOAD
HOLD-UP TIME
POWER FAIL
FLAG THRESHOLD
CAPACITOR VOLTAGE
CONTROLLED SWITCH
CAP CHARGED
FLAG THRESHOLD
FULL LOAD
HIGH, OPEN CIRCUIT
LOW, SHORT RETURN
OPEN
CLOSED
HIGH, OPEN CIRCUIT
LOW, SHORT RETURN
MIN
39
—
—
12
—
—
—
—
—
92
87
80
15
14.0
11.5
22
18
34
19.5
MAX
40
40
60
50
80
100
90
10
4.6
—
—
—
—
14.5
12.0
24
19
36
20.5
HUM-70
MIN
39
—
—
12
—
—
—
—
—
92
87
80
8.6
14.0
11.5
22
18
34
19.5
MAX
40
70
100
50
80
100
90
10
8.6
—
—
—
—
14.5
12.0
24
19
36
20.5
VDC
VDC
µs/µF
VDC
%
VDC
V
mA p-p
mA
A
UNITS
VDC
W
Notes
1. Full load for specifications is 40 W for HUM-40 and 70 W for HUM-70.
®
2
CRANE [ Crane Aerospace & Electronics. ]
