MQHL-28-3R3S
3.3 V
15 A
Output:
Current:
Technical Specification
MQHL-28-3R3S ELECTRICAL CHARACTERISTICS
Parameter
Min. Typ. Max. Units Notes & Conditions
Group A
Vin=28 V dc ±5%, Iout=15.0 A, CL=0 µF, free running (see Note 9)
unless otherwise specified
Subgroup
(see Note 12)
ABSOLUTE MAXIMUM RATINGS
Input Voltage
Non-Operating
60
50
-0.8
-1.2
V
V
V
V
Operating
See Note 1
See Note 2
Reverse Bias (Tcase = 125ºC)
Reverse Bias (Tcase = -55ºC)
Isolation Voltage (I/O to case, I to O)
Continuous
-500
-800
-55
500
800
125
135
300
50
V
V
°C
°C
°C
V
Transient (≤100 µs)
Operating Case Temperature
Storage Case Temperature
Lead Temperature (20 s)
-65
Voltage at ENA1, ENA2
-1.2
INPUT CHARACTERISTICS
Operating Input Voltage Range
"
16
16
28
28
40
50
V
V
Continuous
Transient, 1 s
See Note 3
1, 2, 3
4, 5, 6
Input Under-Voltage Lockout
Turn-On Voltage Threshold
Turn-Off Voltage Threshold
Lockout Voltage Hysteresis
Input Over-Voltage Shutdown
Turn-Off Voltage Threshold
Turn-On Voltage Threshold
Shutdown Voltage Hysteresis
Maximum Input Current
14.75 15.50 16.00
14.00 14.75 15.50
0.65
V
V
V
1, 2, 3
1, 2, 3
1, 2, 3
0.75
0.85
See Note 3
52.0
50.5
1.0
55.0
53.5
1.5
58.0
56.5
2.5
3.9
100
15
V
V
V
A
mA
mA
mA
1, 2, 3
1, 2, 3
1, 2, 3
1, 2, 3
1, 2, 3
1, 2, 3
1, 2, 3
Vin = 16 V; Iout = 15 A
No Load Input Current (operating)
Disabled Input Current (ENA)
Input Terminal Current Ripple (pk-pk)
OUTPUT CHARACTERISTICS
Output Voltage Set Point (Tcase = 25ºC)
Output Voltage Set Point Over Temperature
Output Voltage Line Regulation
Output Voltage Load Regulation
Total Output Voltage Range
Output Voltage Ripple and Noise Peak to Peak
Operating Output Current Range
Operating Output Power Range
Output DC Current-Limit Inception
Back-Drive Current Limit while Enabled
Back-Drive Current Limit while Disabled
Maximum Output Capacitance
DYNAMIC CHARACTERISTICS
Output Voltage Deviation Load Transient
For a Pos. Step Change in Load Current
For a Neg. Step Change in Load Current
Output Voltage Deviation Line Transient
For a Pos. Step Change in Line Voltage
For a Neg. Step Change in Line Voltage
Turn-On Transient
75
10
40
Vin = 16 V, 28 V, 50 V
Bandwidth = 100 kHz – 10 MHz; see Figure 14
60
3.267
3.247
-20
-10
3.23
3.30
3.30
0
0
3.30
15
3.333
3.353
20
V
V
mV
mV
V
mV
A
W
A
A
mA
µF
Vout at sense leads
1
2, 3
"
" ; Vin = 16 V, 28 V, 40 V; Iout=15 A
" ; Vout @ (Iout=0 A) - Vout @ (Iout=15 A)
"
1, 2, 3
1, 2, 3
1, 2, 3
1, 2, 3
1, 2, 3
1, 2, 3
1, 2, 3
1, 2, 3
1, 2, 3
See Note 5
10
3.37
45
Bandwidth = 10 MHz; CL=11µF
0
0
16
15
50
18
4
10
21
See Note 4
30
5,000
See Note 6
-550
-350
350
mV
mV
Total Iout step = 7.5A‹-›15A, 1.5A‹-›7.5A; CL=11µF
4, 5, 6
4, 5, 6
550
"
Vin step = 16V‹-›50V; CL=11 µF; see Note 8
-100
-100
100
100
mV
mV
"
"
4, 5, 6
4, 5, 6
Output Voltage Rise Time
Output Voltage Overshoot
Turn-On Delay, Rising Vin
6
0
5.5
3.0
180
20
10
2
8.0
6.0
250
25
ms
%
ms
ms
ms
ms
Vout = 0.5V-›4.5V; Full Resistive Load
Resistive load
ENA = 5 V; see Notes 9 & 11
See Note 9
See Note 11
4, 5, 6
See Note 5
4, 5, 6
Turn-On Delay, Rising ENA
Restart Inhibit Time
4, 5, 6
4, 5, 6
Short Circuit Start Time
15.0
4, 5, 6
EFFICIENCY
Iout = 15 A (16 Vin)
TBD
TBD
TBD
TBD
TBD
TBD
87
88
86
86
84
83
11
11
%
%
%
%
%
%
W
W
1, 2, 3
1, 2, 3
1, 2, 3
1, 2, 3
1, 2, 3
1, 2, 3
1, 2, 3
1, 2, 3
Iout = 7.5 A (16 Vin)
Iout = 15 A (28 Vin)
Iout = 7.5 A (28 Vin)
Iout = 15 A (40 Vin)
Iout = 7.5 A (40 Vin)
Load Fault Power Dissipation
Short Circuit Power Dissipation
TBD
TBD
Iout at current limit inception point, see Note 4
Vout ≤ 1.2 V
Product # MQHL-28-3R3S
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-0005077 Rev. 1
05/27/09
Page 3
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