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參數(shù)資料
| 型號： | FAN6300HNY |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | SWITCHING CONTROLLER, PDIP8 |
| 封裝： | GREEN, MS-001BA, DIP-8 |
| 文件頁數(shù)： | 10/15頁 |
| 文件大小： | 1029K |
| 代理商： | FAN6300HNY |
2009 Fairchild Semiconductor Corporation
www.fairchildsemi.com
FAN6300A / FAN6300H Rev. 1.0.1
4
FA
N
6300A
/H
—
H
ighly
Int
e
grat
ed
Quasi-
R
esonant
C
u
rrent
M
ode
PW
M
C
ont
roller
Pin Configuration
Figure 4. Pin Configuration
Pin Definitions
Pin #
Name
Description
1
DET
This pin is connected to an auxiliary winding of the transformer via resistors of the divider for
the following purposes:
-
Generates a ZCD signal once the secondary-side switching current falls to zero.
-
Produces an offset voltage to compensate the threshold voltage of the peak current limit to
provide a constant power limit. The offset is generated in accordance with the input voltage
when PWM signal is enabled.
-
Detects the valley voltage of the switching waveform to achieve the valley voltage switching
and minimize the switching losses.
A voltage comparator and a 2.5V reference voltage develop a output OVP protection. The ratio
of the divider decides what output voltage to stop gate, as an optical coupler and secondary
shunt regulator are used.
2
FB
The feedback pin should to be connected to the output of the error amplifier for achieving the
voltage control loop. The FB should be connected to the output of the optical coupler if the
error-amplifier is equipped at the secondary-side of the power converter.
For the primary-side control application, FB is applied to connect a RC network to the ground
for feedback-loop compensation.
The input impedance of this pin is a 5k
Ω equivalent resistance. A 1/3 attenuator connected
between the FB and the PWM circuit is used for the loop-gain attenuation. FAN6300A/H
performs an open-loop protection once the FB voltage is higher than a threshold voltage
(around 4.2V) more than 55ms.
3
CS
Input to the comparator of the over-current protection. A resistor senses the switching current
and the resulting voltage is applied to this pin for the cycle-by-cycle current limit.
4
GND
The power ground and signal ground. A 0.1F decoupling capacitor placed between VDD and
GND is recommended.
5
GATE
Totem-pole output generates the PWM signal to drive the external power MOSFET. The
clamped gate output voltage is 18V.
6
VDD
Power supply. The threshold voltages for startup and turn-off are 16V and 10V, respectively.
The startup current is less than 20A and the operating current is lower than 4.5mA.
7
NC
No connect
8
HV
High-voltage startup.
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| FAN6300SY | 功能描述:電流型 PWM 控制器 30V 125kHz Hi-Integr Quasi-Resonant PWM RoHS:否 制造商:Texas Instruments 開關(guān)頻率:27 KHz 上升時(shí)間: 下降時(shí)間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14 |
| FAN6300SY_SB82266 | 功能描述:電流型 PWM 控制器 Hi-Integrd Quasi-Res Curr Mode PWM Contrl RoHS:否 制造商:Texas Instruments 開關(guān)頻率:27 KHz 上升時(shí)間: 下降時(shí)間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14 |
| FAN6300SY_SB82267 | 功能描述:電流型 PWM 控制器 Hi-Integrd Quasi-Res Curr Mode PWM Contrl RoHS:否 制造商:Texas Instruments 開關(guān)頻率:27 KHz 上升時(shí)間: 下降時(shí)間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14 |
| FAN6300SZ | 功能描述:電流型 PWM 控制器 Quasi-Resonant Crnt. Mode PWM Cont. RoHS:否 制造商:Texas Instruments 開關(guān)頻率:27 KHz 上升時(shí)間: 下降時(shí)間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14 |
| FAN-6-3K | 制造商:MERRIMAC 制造商全稱:MERRIMAC 功能描述:FIXED COAXIAL ATTENUATORS |
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