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參數(shù)資料
| 型號： | HA13173H |
| 廠商： | Renesas Technology Corp. |
| 英文描述： | Multiple Voltage Regulator for Car Audio |
| 中文描述： | 多重電壓調(diào)節(jié)器汽車音響 |
| 文件頁數(shù)： | 6/24頁 |
| 文件大?。?/td> | 222K |
| 代理商： | HA13173H |
HA13173H
Rev.1.00 Jan 16, 2007 page 6 of 23
External Parts Lineup
Operation with Different Value from the
Range of Recommended Value
More than the Range Less than the Range
—
Parts
No.
C1
Function
Range of
Recommended
Upper 100
μ
F
Bypass capacitor
Unstable
Lower ripple rejection
ratio
Unstable
Unstable
C2
CBUP
To prevent oscillation
B backup capacitor
0.1
μ
F
0.1 to 1000
μ
F
Stability improve
Backup time becomes
long
Unconfirmed
CCD
CILM
CVDD
CDSP
CAUDIO
CFREG
CEXT
DBUP
DEXT1
DEXT2
To prevent oscillation
0.1 to 1000
μ
F
Unstable
To prevent oscillation
0.1 to 470
μ
F
Unconfirmed
Unstable
Protection against mistake in joining.
Terminal protection for short circuit to
+B when VCC terminal is open and
for short circuit to GND when GND
terminal is open.
We recommend Schottky barrier
diodes.
Output voltage = (1 +
RFREG1/RFREG2)
×
1.26 V
Resistance for limiting base current of
PNP transistor
Output PNP transistor for FREG
(We recommend Renesas 2SB857.)
IF
≥
200 mA
IF
≥
1 A
Be careful of the maximum rating
—
Be careful of the
maximum rating. The
ability to protect
terminal lower. And
there is some
possibility of
destruction.
Loss of current
increases
RFREG1
RFREG2
GFREG3
100 to 10 k
Unstable
Choose resistance by a required output current value and hFE of
PNP transistor
Choose resistance by a required output current
value and hFE of PNP transistor
Unstable
QFREG
hFE = 50 to 200
Lower output current
capability
Notes: 1. We recommend Polyester film capacitor. To improve stability, take notes of the below precautions.
(1) Use capacitor that is temperature independent.
(2) Use capacitor that is bias voltage independent.
(3) In order to bypass high frequency noise efficiently, mount the capacitor as close as possible to the VCC
and GND of IC to eliminate PCB pattern inductance.
2. For using of the lower limit of recommended value, take notes of the below precautions.
(1) Use capacitor that is temperature independent.
(2) Use capacitor that is bias voltage independent.
(3) To eliminate PCB pattern inductance mount the capacitor as close as possible to the output pin and
GND of IC.
3. To improve stability, take notes of the below precautions.
(1) Use capacitor that is temperature independent.
(2) Use capacitor that is bias voltage independent.
(3) ESR needs to be less than 10
in all the temperature ranges to be used.
(4) To eliminate PCB pattern inductance mount the capacitor as close as possible to the output pin and
GND of IC.
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