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参数资料
| 型号： | BA178TSERIES |
| 厂商： | Rohm CO.,LTD. |
| 英文描述： | Regulators LSIs |
| 中文描述： | 稳压器大规模集成电路 |
| 文件页数： | 11/11页 |
| 文件大小： | 122K |
| 代理商： | BA178TSERIES |
BA178!!T / FP series
Regulator ICs
"
Measurement circuits
0.1
F
0.33
F
IO
VIN
V
OUTPUT
INPUT
COMMON
Fig. 1
Measurement circuit for output voltage,
input stability,load regulation,
temperature coefficient of output voltage
0.1
F
0.33
F
100
F
VIN
IO
eOUT
eIN
10
5W
eIN=1Vrms
f=120Hz
Ripple rejection ratio R.R. = 20 log
eIN
eOUT
V
~
OUTPUT
INPUT
COMMON
V
~
Fig. 2
Measurement circuit for ripple rejection rario
()
OUTPUT
INPUT
COMMON
0.1
0.33
F
IO
VIN
Noise
meter
BPF
10Hz
100kHz
10
F
+
F
Fig. 3
Measurement circuit for output noise voltage
V
OUTPUT
INPUT
COMMON
0.1
F
0.33
F
IO
IA
VIN
V
V=
100mA
Fig. 4
Measurement circuit for Minimum
I / O voltage differential
IO
OUTPUT
INPUT
COMMON
0.1
0.33
VIN
A
F
Fig. 5
Measurement circuit for bias
current and bias current change
A
OUTPUT
INPUT
COMMON
0.1
0.33
IO
VIN
F
Fig. 6 Measurement circuit for
Fig. 1 output short-circuit current
"
Electrical characteristic curves
OUTPUT
VOLTAGE
:
V
OUT
(V)
OUTPUT CURRENT : IOUT (A)
VIN=10V
BA17805T
10
8
6
4
2
0
1.0
1.2
1.4
1.6
1.8
2.0
Fig. 7 Current limit characteristics
OUTPUT
VOLTAGE
:
V
OUT
(V)
JUNCTION TEMPERATURE : Tj (C)
6
5
4
3
2
1
0
25
50
75
100
125
150
175
200
VIN=10V, IOUT=0
BA17805T
Fig. 8 Thermal cutoff circuit
Fig. 2 characteristics
25
20
15
10
5
0
25
50
75
100
125
150
(1) Infinite heat sink,
θj-c = 5.7 (C/W)
(2) 100
×100×2 (mm3), with Al heat sink
(3) 50
×50×2 (mm3), with Al heat sink
(4) No heat sink
θj-a = 62.5 (C/W)
POWER
DISSIPATION
:
Pd
(W)
(3) 6.5
(4) 2.0
AMBIENT TEMPERATURE : Ta (C)
(1) 22.0
(2) 11.0
Fig.9 Ta - power dissipation
characteristics (TO220)
Note: With Al heat sink, tightening
torque = 6 kg/cm and silicon
grease as lubricant
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