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參數(shù)資料
| 型號： | BA9756 |
| 廠商： | Rohm CO.,LTD. |
| 英文描述： | High-voltage control circuit for CRT displays |
| 中文描述： | 高的CRT顯示器的電壓控制電路 |
| 文件頁數(shù)： | 2/9頁 |
| 文件大?。?/td> | 120K |
| 代理商： | BA9756 |
BA9756FS
Multimedia ICs
!
Pin descriptions
11
12
13
15
19
14
16
17
20
*
1 N.C. pin processing
In order to boost the thermal effect of the IC, we recommend connecting this to the GND or to an adjacent pin.
*
2
11
12
14
GND
(Power GND)
This may be shared with the signal GND, but make sure sufficiently stable grounding
is provided.
If a voltage of less than GND or higher than V
CC
is applied because of external back
electromotive force, a protective diode should be inserted (
*
2
).
If the protector circuit and thermal shutdown circuit are tripped, output is fixed at high (V
CC
)
level.
See
*
1
.
A decoupling capacitor should be positioned in the vicinity of this pin.
N.C.
V
CC
2
DTC IN
(dead time
control input)
ERRREF
(error amplifier input)
V
CC
1
(signal V
CC
)
PWMOUT
(PWM output)
(Power V
CC
)
ERROUT
(error amplifier output)
N.C.
This is the input pin for the reference voltage.
This is the output pin for the error amplifier.
See
*
1
.
See
*
1
.
18
N.C.
A decoupling capacitor should be positioned in the vicinity of this pin.
The voltage input to this pin enables restriction of the PWM output duty.
The duty control is between 0V and 9V, and approximately 0% to 100% is enabled. At 0V,
however, restrictions apply.
The minimum pulse width for the PWM is 0.85
μ
s (Typ. at 90kHz).
V
CC
2
TO FET gate
+
Pin No.
Pin name
ERRIN
Function
1
2
3
5
9
4
6
7
8
10
(error amplifier + input)
AGC
(constant for AGC)
This is the recovery voltage input pin.
Capacitance should be determined taking into consideration the linearity at the minimum
oscillation frequency, and the response time when the frequency changes.
See
*
1
.
This is the output pin for optimized sawtooth waves, based on the maximum oscillation
frequency.
fMax120kHz C = 1000pF fMax100kHz C = 1200pF
fMax 80kHz C = 1500pF fMax 60kHz C = 2000pF
See
*
1
.
N.C.
N.C.
MMCR
N.C.
GND
SAWOUT
(constant for
sawtooth wave)
(delay constant for
monostable multivibrator)
HDIN
(Hd pulse input)
VREF9
(Ref 9V output)
(Signal GND)
See
*
1
.
This may be shared with the power GND, but make sure sufficiently stable grounding
is provided.
A charging resistance of 4.7k
or higher should be used.
The threshold level is 4.5V.
The threshold level is approximately 2.1V.
An output deviation of ± 0.7% is assured through trimming.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| BA9756/BA9756FS | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:High-Voltage Control Circuit for CRT Displays Multimedia ICs |
| BA9756FS | 制造商:ROHM 制造商全稱:Rohm 功能描述:High-voltage control circuit for CRT displays |
| BA9759F-E2 | 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 SWITCHING REGULATOR RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| BA9761F | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:マルチメディアLSI |
| BA9771T | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Step-Down Type Switching Power Supply Regulator ICs under Development |
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