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參數(shù)資料
| 型號： | HR43-2805 |
| 廠商： | Standard Power |
| 英文描述： | DC/DC CONVERTERS 28 VOLT INPUT |
| 中文描述： | DC / DC轉(zhuǎn)換28伏的輸入 |
| 文件頁數(shù)： | 2/6頁 |
| 文件大?。?/td> | 83K |
| 代理商： | HR43-2805 |
SINGLE AND DUAL OUTPUT EXTERNAL CAPACITORS
O
PERATION WITHOUT EXTERNAL CAPACITORS WILL RESULT IN DAMAGE TO THE INTERNAL CIRCUITRY
.
TYPICAL CHARACTERISTICS
Output Voltage Temperature Coefficient
HR41-2805 100 ppm/°C typ, 200 max.
HR42-28XX 50 ppm/°C typ.
HR43-28XX 100 ppm/°C typ.
Input to Output Capacitance
60 pF typical
Isolation
100 megohm minimum at 500 V
Conversion Frequency
Single and dual output models, 80 kHz at
full load typical, variable frequency
Triple output models, 200 kHz typical
fixed frequency
Inhibit Pin Voltage (unit enabled)
12 to 28 V
RECOMMENDED OPERATING CONDITIONS
Input Voltage Range
16 to 32 VDC continuous
40 V for 50 ms transient
Case Operating Temperature (Tc)
–40°C to +85°C full power
–40°C to +105°C absolute
Derating Output Power/Current
Linearly from 100% at 85°C to 0% at 105°C
INHIBIT
Required
Connection
Minimum
Capacitor Value
1
Model
Single Output
HR41-2805
Positive Output (12 & 13) to
Output Common (8 & 9)
Positive Output (10) to
Output Common (8)
External Capacitor (14) to
Output Common (8)
3
Negative Output (12) to
Output Common (8)
220 μF, 10 V
Dual Outputs
2
HR42-2812
and
HR42-2815
100 μF, 25 V
100 μF, 25 V
10 μF, 25 V
B4-52
HR40 SERIES
4 WATT
DC/DC C
ONVERTERS
ABSOLUTE MAXIMUM RATINGS
Input Voltage
16 to 32 VDC
Output Power
3.2 to 4 watts depending on model
Lead Soldering Temperature (10 sec)
300°C
Storage Temperature Range (Case)
–40°C to +125°C
SINGLE AND DUAL OUTPUT MODELS
PARAMETER
1
HR41-2805
HR42-2812
HR42-2815
CONDITIONS
MIN
TYP
MAX
MIN
TYP
MAX
MIN
TYP
MAX
UNITS
OUTPUT VOLTAGE
P
OUT
= 2 W
18 TO 32 V
IN
Tc = –40°C TO +85°C
4.90
5.0
5.10
±11.88
±12
±12.12
±14.85
±15
±15.15
VDC
OUTPUT CURRENT
OUTPUT POWER
2
—
—
700
—
—
±167
—
—
±133
mA
—
—
3.5
—
—
4.0
—
—
4.0
W
OUTPUT RIPPLE
BW = 1 MHz
—
75
150
—
75
150
—
75
150
mV p-p
LINE REGULATION
18 - 32 V
IN
, P
OUT
= 2 W
NO LOAD TO FULL
—
5
10
—
10
20
—
10
20
mV
LOAD REGULATION
—
25
50
—
12
24
—
12
24
mV
INPUT VOLTAGE
Tc = –40°C TO +85°C
16
28
32
16
28
32
16
28
32
VDC
TRANSIENT 50 ms
—
—
40
—
—
40
—
—
40
V
INPUT CURRENT
NO LOAD
—
7
10
—
10
15
—
10
15
FULL LOAD
—
—
192
—
—
213
—
—
213
mA
INHIBITED
—
—
15
—
—
15
—
—
15
EFFICIENCY
FULL LOAD
68
72
—
70
75
—
70
75
—
%
Inhibit TTL Open Collector
Logic low (output disabled)
≤
0.8 V
Referenced to input common
Logic high (output enabled)
≥
12 V
Notes
1. External capacitors required to prevent damage to internal circuitry (see
Table 1 for specifications).
2. Dual output models deliver up to 4 watts total for balanced or unbalanced
loads, however, the positive output should carry at least 25% of the total load.
FEEDBACK
LOGIC
TIMING
CONTROL
SWITCH
POSITIVE
O10
1, 2
POSITIVE
INPUT
15
INHIBIT
17, 18
INPUT
COMMON
14
NEGATIVE
O12
OUTPUT
CO8
EXTERNAL
CAPACITOR
TERMINAL
100
μ
F
10
μ
F
100
μ
F
+
+
+
EXTERNAL
CAPACITORS
VOLTAGE
REGULATOR
F
IGURE
1: D
UAL
O
UTPUT
E
XTERNAL
C
APACITOR
C
ONNECTIONS
Table 1 Notes
1. Capacitors should be high quality, low ESR components —
solid tantalum is recommended.
2. See Figure 1 for connection diagram
3. Place positive side of capacitor toward pin 8.
T
ABLE
1: E
XTERNAL
C
APACITOR
R
EQUIREMENTS
Electrical Characteristics: 25°C Tc, 28 VDC Vin, 100% load, unless otherwise specified.
W
ARNING
: E
XTERNAL
C
APACITORS
R
EQUIRED
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