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FA7700V 데이터시트 PDF




Fuji에서 제조한 전자 부품 FA7700V은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


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부품번호 FA7700V 기능
기능 Power Supply Control IC
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FA7700V 데이터시트, 핀배열, 회로
Quality is our message
FUJI Power Supply Control IC
FA7700V/01V
Application Note
Dec -2000
Fuji Electric Co., Ltd.
Matsumoto Factory
                            h tt p :// st or e. ii i1c .c c/                 
http://www.Datasheet4U.com




FA7700V pdf, 반도체, 판매, 대치품
Quality is our message
1Description
FA7700V/FA7701V are the PWM type DC to DC converter control ICs with 1ch output that can directly drive power
MOSFETs. CMOS devices w ith high breakdown voltage are us ed in these I Cs and low pow er consumption is
achieved. These I Cs have t he m any f unctions equivalent t o t hose which our conventional version bipolar ICs –
FA76XX series- have,and have merits of output ON/OFF control f unction,directly driving Nch/Pch MOSFETs,low
power consumption , higher frequency operation, and less external discrete components.
2Features
Wide range of supply voltage.: VCC=2.5 to 20V
FA7700V—for boost, flyback converter (Maximum output duty cycle is 80%)
 FA7701V—for buck converter (Maximum output duty cycle is 100%)
output stage consist of CMOS p ush-pull circuit, a nd achieves a high speed switching of external MOSFETs.
(FA7700V: for Nch-MOSFET driving, FA7701V: for Pch-MOSFET driving)
High accuracy reference voltage (Error amplifier): 0.88V±2%
Soft start function.
Adjustable built-in timer latch for short-circuit protection.
Output ON/OFF control function
Less external d iscrete components n eeded (2 components less t han conventional v ersion of t he equivalent
products)
Low power consumption
Stand-by current: 40μA(typ.)
Operating current: 1.2mA(typ.) (including error amplifier output current and oscillator current)
High frequency operation: 50kHz to 1MHz
Package: TSSOP-8(thin and small)
3Outline
units:mm
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FA7700V 전자부품, 판매, 대치품
(3) El ectrical characteristics
(Unless otherwise standard, Ta=25 ,Vcc=6V,RT=22k )
Quality is our message
(1)Internal Bias Section (REF terminal voltage)
Item Symbol
Conditions
Output Voltage
VREF
REF terminal source current
IREF = 0mA
Line Regulation
VLINE Vcc = 2.5 to 20V IREF = 0mA
Load Regulation
VLOAD IREF = 0 to 2mA
Variation
VTC1 Ta = -30 to 25
with temperature
VTC2 Ta = 25 to 85
MIN.
2.16
TYP.
2.23
2
2
0.3
0.3
MAX.
2.30
14
12
Units
V
mV
mV
%
%
(2)Oscillator Section (Frequency set by RT terminal )
Item Symbol
Conditions
Oscillation
frequency
fosc RT = 22k
Line Regulation
fLINE Vcc = 2.5 to 20V
Variation
fTC1 Ta = -30 to 25 , 50k to 1MHz
with temperature
fTC2 Ta = 25 to 85 , 50k to 1MHz
MIN.
155
TYP.
185
0.1
2
3
MAX.
215
Units
kHz
%
%
%
(3)Error Amplifier Section (IN- terminal , FB terminal
Item Symbol
Conditions
Reference Voltage
VB
IN- terminal, FB terminal
:shorted (Voltage Follower)
Input current
“VB
Line Regulation
IIN-
VBLINE
Vcc = 2.5 to 20V
“VB” variation
with temperature
VBTC1
VBTC2
Ta = -30 to 25
Ta = 25 to 85
Open Loop Gain
Unity Gain
Bandwidth
AVO
fT
Output
Current
Source
Sink
IOHE FB terminal = VREF- 0.5V
IOLE FB terminal = 0.5V
MIN.
0.863
-500
70
-220
3
TYP.
0.880
1
0.3
0.3
1.5
-160
6
MAX.
0.897
+500
5
-100
12
Units
nA
mV
%
%
dB
MHz
A
mA
(4)Pulse Width Modulation (PWM) Section (FB terminal voltage and Duty Cycle)
Item Symbol
Conditions
MIN.
FB 0% threshold
VFB0 Duty Cycle = 0%
0.560
FB 50% threshold
VFB50 Duty Cycle = 50%
Maximum
Duty
Cycle
FA7700
FA7701
DMAX1
DMAX2
DMAX3
DMAX
RT = 100k ,
RT = 22k ,
RT = 3k ,
50kHz
185kHz
1MHz
85
83
80
100
TYP.
0.660
0.880
90
88
86
MAX.
0.760
95
93
92
Units
%
%
%
%
(5)Under Voltage Lock-Out Section (VCC terminal voltage)
Item Symbol
Conditions
ON threshold
VCCON
OFF threshold
VCCOF
Hysteresis Voltage
VCCHY
Variation with
temperature
Ta = -30 to 25
VCCHY Ta = 25 to 85
MIN.
1.60
0.04
TYP.
2.07
1.93
0.14
0.2
0.2
MAX.
2.30
0.24
Units
mV/
mV/
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관련 데이터시트

부품번호상세설명 및 기능제조사
FA7700V

For Switching Power Supply Control

ETC
ETC
FA7700V

Power Supply Control IC

Fuji
Fuji

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