D2800D_15 Datasheet, PDF (4/10 Pages) International Rectifier – HIGH RELIABILITY, RADIATION TOLERANT, LOW POWER, DC-DC CONVERTER

D28XXD-SERIES
(28V Input, Regulated Dual Outputs)
Electrical Performance Characteristics (continued)
Conditions
Parameter
Group A
Subgroup
-55°C ≤ T_C ≤ +85°C
V_IN = 28V DC ± 5%, C_L = 0
Min
unless otherwise specified
Synchronization input
Frequency range
450
Pulse high level
External clock on sync In (Pin 4),
2.5
Pulse low level
1,2,3
Note 1
-0.5
Pulse transition time
40
Pulse duty cycle
20
Output ripple (V_RIP)
D2805D
D2812D
D2815D
Output ripple @ switch
frequency
D2805D
D2812D
D2815D
1,2,3
1,2,3
V_IN = 18, 28, 50V
I_OUT = 100% rated load
Note 3
V_IN = 18, 28, 50V
I_OUT = 100% rated load
Note 1
Efficiency (E_FF)
D2805D
55
D2812D
1,2,3
I_OUT = 100% rated load
61
D2815D
62
Inhibit input
Open circuit voltage
Drive current (sink)
Voltage range
Note 1
Current limit point
D2805D
V_OUT = 90% of Nominal
105
D2812D
1,2,3
Note 10
105
D2815D
105
Power dissipation load fault
(P_D)
1,2,3
Short Circuit, Overload, Note 5
Output response to
step load changes (V_TLD)
D2805D
D2812D
4,5,6
Half Load to/ from Full Load, Note 6
-15
-15
D2815D
-15
Recovery time,
step load changes (T_TLD)
D2805D
D2812D
D2815D
4,5,6
Half Load to/from Full Load,
Notes 6, 7
Recovery time,
step line changes (T_TLN)
4,5,6
18V to/from 50V
I_OUT = 100% rated load, Notes 1, 7, 8
For Notes to Electrical Performance Characteristic Table, refer to page 5
4
Limits
Nom
0.5
0.5
0.5
58
64
65
Unit
Max
550
kHz
5.0
V
0.5
V
V/µs
80
%
20
20
mV p-p
20
1.0
1.0
mV rms
1.0
%
4.0
V
600
µA
50
V
145
145
%
145
8.0
W
15
mV pk
15
15
500
500
µs
500
100
µs
www.irf.com