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FAN6754 데이터시트 PDF




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부품번호 FAN6754 기능
기능 Highly Integrated Green-Mode PWM Controller
제조업체 Fairchild Semiconductor
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FAN6754 데이터시트, 핀배열, 회로
September 2009
FAN6754
Highly Integrated Green-Mode PWM Controller
Brownout and Constant Power Limited by HV Pin
Features
ƒ High-Voltage Startup
ƒ AC Input Brownout Protection with Hysteresis
ƒ Low Operating Current: 1.7mA
ƒ Linearly Decreasing PWM Frequency to 22KHz
ƒ Frequency Hopping to Reduce EMI Emission
ƒ Fixed PWM Frequency: 65KHz
ƒ Peak-Current-Mode Control
ƒ Cycle-by-Cycle Current Limiting
ƒ Leading-Edge Blanking (LEB)
ƒ Internal Open-Loop Protection
ƒ GATE Output Maximum Voltage Clamp: 13V
ƒ VDD Under-Voltage Lockout (UVLO)
ƒ VDD Over-Voltage Protection (OVP)
ƒ Programmable Over-Temperature Protection (OTP)
ƒ Internal Latch Circuit (OVP, OTP)
ƒ Open-Loop Protection (OLP); Restart for MR, Latch
for ML
www.DataShƒeet4BUu.cioltm-in 8ms Soft-Start Function
ƒ Constant Power Limit (Full AC Input Range)
ƒ Internal OTP Sensor with Hysteresis
Applications
General-purpose switch-mode power supplies and
flyback power converters, including:
ƒ Power Adapters
Description
The highly integrated FAN6754 PWM controller
provides several features to enhance the performance
of flyback converters. To minimize standby power
consumption, a proprietary green-mode function
provides off-time modulation to continuously decrease
the switching frequency under light-load conditions.
Under zero-load and very light-load conditions,
FAN6754 saves PWM pulses by entering deep burst
mode. This burst mode function enables the power
supply to meet international power conservation
requirements.
FAN6754 integrates a frequency-hopping function
internally to reduce EMI emission of a power supply
with minimum line filters. Built-in synchronized slope
compensation is accomplished by, proprietary internal
compensation for constant output power limit over
universal AC input range. Also, the gate output is
clamped at 13V to protect the external MOSFET from
over-voltage damage.
Other protection functions include AC input brownout
protection with hysteresis and VDD over-voltage
protection. For over-temperature protection, an external
NTC thermistor can be applied to sense the external
switcher’s temperature. When VDD OVP or OTP are
activated, an internal latch circuit is used to latch-off the
controller. The latch mode is reset when the VDD supply
is removed.
FAN6754 is available in an 8-pin SOP package.
Ordering Information
Part Number
Operating
Temperature Range
FAN6754MRMY
FAN6754MLMY
-40 to +105°C
-40 to +105°C
Eco
Status
RoHS
RoHS
Package
8-Pin, Small Outline Package (SOP)
8-Pin, Small Outline Package (SOP)
Packing Method
Tape & Reel
Tape & Reel
For Fairchild’s definition of Eco Status, please visit: http://www.fairchildsemi.com/company/green/rohs_green.html.
© 2009 Fairchild Semiconductor Corporation
FAN6754 • Rev. 1.0.0
www.fairchildsemi.com




FAN6754 pdf, 반도체, 판매, 대치품
Absolute Maximum Ratings
Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be
operable above the recommended operating conditions and stressing the parts to these levels is not recommended.
In addition, extended exposure to stresses above the recommended operating conditions may affect device
reliability. The absolute maximum ratings are stress ratings only.
Symbol
Parameter
Min.
Max.
Unit
VVDD
VFB
VSENSE
VRT
VHV
DC Supply Voltage(1, 2)
FB Pin Input Voltage
SENSE Pin Input Voltage
RT Pin Input Voltage
HV Pin Input Voltage
30
-0.3 7.0
-0.3 7.0
-0.3 7.0
500
V
V
V
V
V
PD Power Dissipation (TA50°C)
400 mW
ΘJA Thermal Resistance (Junction-to-Air)
141 °C/W
TJ Operating Junction Temperature
-40 +125
°C
TSTG Storage Temperature Range
-55 +150
°C
TL
ESD
Lead Temperature (Wave Soldering or IR, 10 Seconds)
Human Body Model, JEDEC:JESD22-A114
Charged Device Model, JEDEC:JESD22-C101
+260
4.5
1500
°C
kV
V
Notes:
1. All voltage values, except differential voltages, are given with respect to the network ground terminal.
2. Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device.
Recommended Operating Conditions
The Recommended Operating Conditions table defines the conditions for actual device operation. Recommended
operating conditions are specified to ensure optimal performance to the datasheet specifications. Fairchild does not
recommend exceeding them or designing to Absolute Maximum Ratings.
Symbol
Parameter
TA Operating Ambient Temperature
www.DataSheeRt4HUV.com HV Startup Resistor
Conditions
Min.
-40
150
Typ.
200
Max.
+105
Unit
°C
k
© 2009 Fairchild Semiconductor Corporation
FAN6754 • Rev. 1.0.0
4
www.fairchildsemi.com

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FAN6754 전자부품, 판매, 대치품
Electrical Characteristics (Continued)
VDD=15V and TA=25°C unless otherwise noted.
Symbol
Parameter
Oscillator Section
fOSC Frequency in Normal Mode
tHOP Hopping Period
fOSC-G
fDV
fDT
Green-Mode Frequency
Frequency Variation vs. VDD Deviation
Frequency Variation vs. Temperature
Deviation
Feedback Input Section
AV
ZFB
VFB-OPEN
VFB-OLP
tD-OLP
Input Voltage to Current-Sense Attenuation
Input Impedance
Output High Voltage
FB Open-Loop Trigger Level
Delay Time of FB Pin Open-Loop Protection
VFB-N Green-Mode Entry FB Voltage
VFB-G Green-Mode Ending FB Voltage
VFB-ZDCR FB Threshold Voltage for Zero-Duty Recovery
VFB-ZDC FB Threshold Voltage for Zero-Duty
Conditions
Center Frequency
Hopping Range
FB > VFB-N
FB=VFB-G
VDD=11V to 22V
TA=-40 to +105°C
FB Pin Open
Pin, FB Voltage
(FB =VFB-N)
Hopping Range
Pin, FB Voltage
(FB =VFB-G)
Hopping Range
Min. Typ. Max. Units
61 65 69 KHz
±3.7 ±4.2 ±4.7
3.9 4.4 4.9 ms
10.2 11.5 12.8 ms
19 22 25 KHz
5%
5%
1/4.5
13.5
4.8
4.3
50
1/4.0
15.5
5.0
4.6
55
1/3.5
17.5
5.2
4.9
60
V/V
k
V
V
ms
2.6 2.8 3.0 V
±3.7 ±4.2 ±4.7 kHz
2.1 2.3 2.5 V
±1.27
1.9
1.8
±1.45
2.1
2.0
±1.62
2.3
2.2
kHz
V
V
Continued on the following page…
www.DataSheet4U.com
PWM Frequency
fOSC
fOSC-G
VFB-ZDC VFB-ZDCR VFB-G
VFB-N
Figure 8. VFB vs. PWM Frequency
VFB
© 2009 Fairchild Semiconductor Corporation
FAN6754 • Rev. 1.0.0
7
www.fairchildsemi.com

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부품번호상세설명 및 기능제조사
FAN6751

Highly Integrated Green-Mode PWM Controller

Fairchild Semiconductor
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FAN6753

Highly Integrated Green-Mode PWM Controller

Fairchild Semiconductor
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