SYNC AND INHIBIT
RECOMMENDED OPERATING CONDITIONS
B6-4
H
OLD
U
P
M
ODULE
ABSOLUTE MAXIMUM RATINGS
Input Voltage Range
12 to 40 VDC continuous
Case Operating Temperature (Tc)
–55 to +125°C full power
Output Power
HUM-40
* HUM-70
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
40 watts
70 watts
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
HUM-40
MIN
39
—
—
12
—
—
—
—
HUM-70
MIN
39
—
—
12
—
—
—
—
PARAMETER
CONDITION
CEXT TERMINAL
CONTINUOUS
PEAK, 2 SEC
CONTINUOUS
TRANSIENT 50 ms
2 MHz Bandwidth
V
IN
= 28V, VCS OPEN
V
IN
= 28V, INHIBITED
MAX
40
40
60
50
80
100
90
10
MAX
40
70
100
50
80
100
90
10
UNITS
VDC
OUTPUT VOLTAGE
OUTPUT POWER
W
INPUT VOLTAGE
VDC
V
mA p-p
INPUT RIPPLE CURRENT
mA
INPUT CURRENT
V
IN
= 12V, FULL LOAD
—
4.6
—
8.6
A
V
IN
= 40V, FULL LOAD
92
—
92
—
EFFICIENCY
V
IN
= 22V, FULL LOAD
87
—
87
—
%
V
IN
= 12V, FULL LOAD
80
—
80
—
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
15
14.0
11.5
22
18
34
19.5
—
14.5
12.0
24
19
36
20.5
8.6
14.0
11.5
22
18
34
19.5
—
14.5
12.0
24
19
36
20.5
μs/μF
VDC
VDC
VDC
Notes
1. Full load for specifications is 40 W for HUM-40 and 70 W for HUM-70.
HUMMER SERIES
40 OR 70 WATTS
Electrical Characteristics: 25°C Tc, 28 VDC Vin, 100% load, free run, unless otherwise specified.