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FAN6754WA 데이터시트 PDF




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부품번호 FAN6754WA 기능
기능 Highly Integrated Green-Mode PWM Controller
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FAN6754WA 데이터시트, 핀배열, 회로
Febuary 2013
FAN6754WA
Highly Integrated Green-Mode PWM Controller
Brownout and VLimit Adjustment by HV Pin
Features
High-Voltage Startup
AC Input Brownout Protection with Hysteresis
Monitor HV to Adjust VLimit
Low Operating Current: 1.5 mA
Linearly Decreasing PWM Frequency to 22 kHz
Frequency Hopping to Reduce EMI Emission
Fixed PWM Frequency: 65 kHz
Peak-Current-Mode Control
Cycle-by-Cycle Current Limiting
Leading-Edge Blanking (LEB)
Internal Open-Loop Protection
GATE Output Maximum Voltage Clamp: 13 V
VDD Under-Voltage Lockout (UVLO)
VDD Over-Voltage Protection (OVP)
Programmable Over-Temperature Protection (OTP)
Internal Latch Circuit (OVP, OTP)
Open-Loop Protection (OLP); Restart for
FAN6754WAMRMY, Latch for FAN6754WAMLMY
SENSE Short-Circuit Protection (SSCP)
Built-in 8 ms Soft-Start Function
Applications
General-purpose switch-mode power supplies (SMPS)
and flyback power converters, including:
Power Adapters
Description
The highly integrated FAN6754WA 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,
FAN6754WA saves PWM pulses by entering "deep"
Burst Mode. Burst Mode enables the power supply to
meet international power conservation requirements.
FAN6754WA also integrates a frequency-hopping
function that helps reduce EMI emission of a power
supply with minimum line filters. The built-in
synchronized slope compensation helps achieve stable
peak-current control. To keep constant output power
limit over universal AC input range, the current limit is
adjusted according to AC line voltage detected by the
HV pin. The gate output is clamped at 13 V to protect
the external MOSFET from over-voltage damage.
Other protection functions include AC input brownout
protection with hysteresis, sense pin short-circuit
protection, and VDD over-voltage protection. For over-
temperature protection, an external NTC thermistor can
be applied to sense the external switchers 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.
FAN6754WA is available in an 8-pin SOP package.
Ordering Information
Part Number
FAN6754WAMRMY
FAN6754WAMLMY
Operating
Temperature Range
Package
-40 to +105°C
8-Pin, Small Outline Package (SOP)
Packing Method
Tape & Reel
© 2011 Fairchild Semiconductor Corporation
FAN6754WA • Rev. 1.0.6
1
www.fairchildsemi.com




FAN6754WA 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
DC Supply Voltage(1,2)
FB Pin Input Voltage
30
-0.3 7.0
V
V
VSENSE
VRT
SENSE Pin Input Voltage
RT Pin Input Voltage
-0.3 7.0
-0.3 7.0
V
V
VHV HV Pin Input Voltage
500 V
PD Power Dissipation (TA50°C)
400 mW
JA Thermal Resistance (Junction-to-Air)
150 C/W
TJ Operating Junction Temperature
-40 +125 C
TSTG Storage Temperature Range
-55 +150 C
TL Lead Temperature (Wave Soldering or IR, 10 Seconds)
+260
C
ESD
Electrostatic Discharge Capability,
All Pins Except HV Pin
Human Body Model;
JESD22-A114
Charged Device Model;
JESD22-C101
5000
2000
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.
3. ESD with HV pin: CDM=1250 V and HBM=500 V.
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
RHV HV Startup Resistor
Min.
150
Typ.
200
Max.
250
Unit
k
© 2011 Fairchild Semiconductor Corporation
FAN6754WA • Rev. 1.0.6
4
www.fairchildsemi.com

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FAN6754WA 전자부품, 판매, 대치품
Electrical Characteristics (Continued)
VDD=15 V and TA=25C unless otherwise noted.
Symbol
Parameter
Conditions
Oscillator Section
fOSC
tHOP
fOSC-G
fDV
Frequency in Normal Mode
Hopping Period
Green-Mode Frequency
Frequency Variation vs. VDD Deviation
Center Frequency
Hopping Range
VDD=11 V to 22 V
fDT Frequency Variation vs. Temperature Deviation TA=-40 to +105C
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
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
12.0 13.5 15.0 ms
19 22 25 kHz
5%
5%
1/4.5
14
4.8
4.3
50
2.6
±3.7
2.1
1/4.0
16
5.0
4.6
56
2.8
±4.2
2.3
1/3.5
18
5.2
4.9
62
3.0
±4.7
2.5
V/V
k
V
V
ms
V
kHz
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…
PWM Frequency
fOSC
fOSC-G
VFB-ZDC VFB-ZDCR VFB-G
VFB-N
Figure 8. VFB vs. PWM Frequency
VFB
© 2011 Fairchild Semiconductor Corporation
FAN6754WA • Rev. 1.0.6
7
www.fairchildsemi.com

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관련 데이터시트

부품번호상세설명 및 기능제조사
FAN6754WA

Highly Integrated Green-Mode PWM Controller

Fairchild Semiconductor
Fairchild Semiconductor
FAN6754WAMLMY

Highly Integrated Green-Mode PWM Controller

Fairchild Semiconductor
Fairchild Semiconductor

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