AP3710 green-mode controller, main applications power supplies such of
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Data Sheet POWER CONTROLLER OFF-LINE ADAPTER General Description
AP3710 green-mode controller, main applications power supplies such offline battery chargers, adapters, other auxiliary supplies, where needs load power, total cost high reliability required. functional blocks AP3710 include: under voltage lockout with start-up current; precise voltage reference internal comparators; comparator with current limit control, feedback signal bandgap input; short circuit comparator open circuit protection opto-coupler. AP3710 operates fixed 60kHz switching frequency, output connects emitter high voltage transistor source MOSFET. normal mode, works switch turn turn external transistor. failure modes like open loop, over voltage overload short circuit, chip enters into auto restart mode controlled internal protection unit. AP3710 available SOIC-8 DIP-8 packages.
AP3710
Current Mode Control with Skip Cycle Capability Start-up Current: 0.25 Operating Current: 0.45mA Output Current Capacity: Fixed Switching Frequency: Frequency Dithering Under-Voltage Lockout with Hysteresis Built-in Slope Compensation Short Circuit Protection Open Short Circuit Protection OptoCoupler Maximum Input Power 0.2W under Load Maximum Input Power under 0.5W Load Total Cost Solution
Applications
Adapters Battery Chargers Boxes Auxiliary Supplies
SOIC-8
DIP-8
Figure Package Types AP3710
Aug. 2008 Rev.
Semiconductor Manufacturing Limited
Data Sheet POWER CONTROLLER OFF-LINE ADAPTER Configuration
Package (SOIC-8/DIP-8)
VSEN
AP3710
Figure Configuration AP3710 (Top View)
Description
Number Name VSEN Power supply ground power supply this terminal also used feedback control connected output directly connected emitter transistor source MOSFET used line voltage compensation, uses this terminate output switch conduction used short circuit protection, this terminal will pulled down level when short circuit happens load side Function
Aug. 2008 Rev.
Semiconductor Manufacturing Limited
Data Sheet POWER CONTROLLER OFF-LINE ADAPTER Functional Block Diagram AP3710
UVLO COMPARATOR VREF (1.2V) BIAS
START-UP CURRENT SOURCE
OSCILLATOR
COMPARATOR
VSEN
VREF (1.2V) DISCHARGE COMPARATOR
DRIVER CONTROL
SLOP COMPENSATION DISCHARGE LOGIC
VREF (1.2V)
Figure Functional Block Diagram AP3710
Aug. 2008 Rev.
Semiconductor Manufacturing Limited
Data Sheet POWER CONTROLLER OFF-LINE ADAPTER Ordering Information
AP3710 Circuit Type Package SOIC-8 DIP-8
Switching Frequency 60kHz 60kHz Temperature Range 85oC 85oC Part Number
Lead Free AP3710M-E1 AP3710MTR-E1 AP3710P-E1 Green AP3710M-G1 AP3710MTR-G1 AP3710P-G1
AP3710
Lead Free Green Tape Reel Blank: Tube
Package SOIC-8 DIP-8
Marking
Lead Free 3710M-E1 3710M-E1 AP3710P-E1 Green 3710M-G1 3710M-G1 AP3710P-G1
Packing Type Tube Tape Reel Tube
Semiconductor's Pb-free products, designated with "E1" suffix part number, RoHS compliant. Products with "G1" suffix available green packages.
Absolute Maximum Ratings (Note
Parameter Supply Voltage Voltage Analog Input VSEN Output Current Power Dissipation Operating Junction Temperature Storage Temperature Lead Temperature (Soldering, 10s) (Machine Model) (Human Body Model) Value -0.3 -0.3 -0.3 Internally limited 3000 Unit
Note Stresses greater than those listed under "Absolute Maximum Ratings" cause permanent damage device. These stress ratings only, functional operation device these other conditions beyond those indicated under "Recommended Operating Conditions" implied. Exposure "Absolute Maximum Ratings" extended periods affect device reliability.
Aug. 2008 Rev.
Semiconductor Manufacturing Limited
Data Sheet POWER CONTROLLER OFF-LINE ADAPTER Electrical Characteristics
(VCC=4V, TJ=25oC, unless otherwise specified.)
Parameter UVLO SECTION Turn Threshold Voltage Turn Threshold Voltage Discharge Voltage (on) (off) VDIS 5.30 5.60 3.65 5.90 3.90 Symbol Conditions Unit
AP3710
STANDBY CURRENT SECTION Start-up Current Operating Current Zener Voltage Dynamic Impedance INTERNAL OSCILLATOR Switching Frequency Frequency Dithering Temperature Stability DRIVE OUTPUT SECTION Turn-on Voltage Turn-off Voltage Rise Time Fall Time Maximum Duty Cycle Minimum Duty Cycle Driver On-Resistance Switch Current (OUT) Effective Current Limit Current Coefficient CURRENT SECTION Maximum Input Signal VSEN ILIM ROUT VOUT(on) VOUT(off) DMAX CL=1nF, pull-up CL=1nF, pull-up VCC(off) 0.2V VCC=VCC (on)-0.2V IOUT=0.7A Driver off, VOUT=10V VCC=VCC(off)+0.5V -0.6 85oC (Note ICC(opr) RVCC ICC=10mA VCC=3.8 4.8V (Note VCC=4V 0.25 0.45
±3.5
Note Guaranteed design, tested production. Note fixed oscillation frequency, frequency jittering included.
Aug. 2008 Rev.
Semiconductor Manufacturing Limited
Data Sheet POWER CONTROLLER OFF-LINE ADAPTER Electrical Characteristics (Continued)
1N5819
AP3710
100/3W
100F/50V Zener
100F/50V =10V
AP3710
2200pF
VCC=VCC(off)+0.5V
Figure Test Circuit Current Limit
Aug. 2008 Rev.
Semiconductor Manufacturing Limited
Data Sheet POWER CONTROLLER OFF-LINE ADAPTER Typical Performance Characteristics AP3710
Operating Current
Start-up Current
Ambient Temperature
Ambient Temperature
Figure Operating Current Ambient Temperature
Figure Start-up Current Ambient Temperature
Start-up Current
Switching Frequency (KHz)
Voltage
Ambient Temperature
Figure Start-up Current Voltage
Figure Switching Frequency Ambient Temperature
Aug. 2008 Rev.
Semiconductor Manufacturing Limited
Data Sheet POWER CONTROLLER OFF-LINE ADAPTER Typical Performance Characteristics (Continued) AP3710
1.10
3.10 3.05 3.00
1.05
Normalized Current Limit
1.00
Discharge Voltage
2.95 2.90 2.85 2.80 2.75
0.95
0.90
0.85
0.80
2.70
Ambient Temperature
Ambient Temperature
Figure Normalized Current Limit Ambient Temperature
Figure Discharge Voltage Ambient Temperature
Turn Threshold Voltage
Resistance
Ambient Temperature
Ambient Temperature
Figure Resistance Ambient Temperature
Figure Turn Voltage Ambient Temperature
Aug. 2008 Rev.
Semiconductor Manufacturing Limited
Data Sheet POWER CONTROLLER OFF-LINE ADAPTER Function Description
UVLO Start Circuit
AP3710's turn threshold voltage 5.6V turn threshold voltage 3.65V, UVLO hysteresis voltage 1.95V, which helps AP3710 draw adequate energy supply terminal during start-up. Please Figure UVLO chart.
R2+R3 APT13003 VSEN Rectified
AP3710
PC817
ICC: Supply Current
AZ431
Turn
Turn
AP3710
3.65 VCC: Supply Voltage
Figure Start-up Circuit Typical Application
Figure 5.6/3.65V UVLO Threshold AP3710
terminal Figure used both bias supply feedback control. When AP3710 powered start-up current source turns turn until level increases threshold value pulse produced.
start-up section typical application shown Figure rectified line voltage charges capacitor through start-up resistor R2+R3 until turned terminal directly drive external MOSFET inside AP3710 connected series with Once start-up auxiliary bias winding will supply terminal enough operating current. start-up sequence shown Figure
Figure Power Waveforms
Aug. 2008 Rev.
Semiconductor Manufacturing Limited
Data Sheet POWER CONTROLLER OFF-LINE ADAPTER Function Description (Continued)
VCC/Feedback Control
Figure opto-coupler secondary constant voltage consists voltage feedback network. Voltage feedback loop consists shunt regulator AZ431 FB/VCC terminal AP3710. When load heavy, voltage terminal will decrease enlarge duty cycle; contrary, load drops, voltage will increase reduce duty cycle.
AP3710
Current Limit Control
AP3710 employs current mode control improve transient response voltage stability. Figure external inductor current through converted voltage internal resistor, this voltage will participate control duty cycle peak inductor current.
Skip Cycle Mode Operation
AP3710 enters skip cycle mode when load power drops below given level, this performed sensing voltage level, i.e., heavier load power, lower voltage level. normal operation, terminal indicates peak inductance current under certain load power. load power decreases, voltage level increases less peak current. When reaches determined value, prevents current from decreasing further down starts blank output pulses, then enters skip cycle mode operation. Figure sketch operation mode.
Normal Waveform Cycle Skip Waveform
Frequency Dithering
Frequency dithering performed periodically spreading single switching frequency into adjacent frequency band, peak energy spread. This technique improve performance reducing both quasi peak average emissions.
Figure Skip Cycle Normal Waveform Figure Frequency Dither Influences Switching Cycle
Slope Compensation
AP3710 current mode controller, regulates peak inductance current current control loop. known that continuous conduction mode SMPS induce noise harmonic oscillation current sense feedback signal, this especially serious when duty cycle exceeds 50%. internal slope compensation AP3710 improve power supply stability increasing current slope.
Aug. 2008 Rev.
Semiconductor Manufacturing Limited
Data Sheet POWER CONTROLLER OFF-LINE ADAPTER Function Description (Continued)
Short Circuit Protection
Internal short circuit control protect SMPS from being damaged when short circuit output happens. Figure when drops below turn threshold value, UVLO comparator's output will control Discharge Logic pull terminal level, level kept before voltage drops below threshold value discharge comparator. Then system will re-startup from charging again same process will repeat indefinitely. long start-up period makes input power enough ensure whole system safety under output short circuit condition.
From
AP3710
From UVLO
Discharge Comparator Discharge Logic
VREF 1.2V
Figure Short Circuit Protection Block
Aug. 2008 Rev.
Semiconductor Manufacturing Limited
Data Sheet POWER CONTROLLER OFF-LINE ADAPTER Typical Application
AP3710
D1-D4
EE16
12V/1A
85-264V
VOD7
VSEN
Figure 12V/1A Adapter
Aug. 2008 Rev.
Semiconductor Manufacturing Limited
Data Sheet POWER CONTROLLER OFF-LINE ADAPTER Bill Materials Figure
Designator Part Type Resistor, Resistor, Resistor, 1206 Resistor, 68k, 1206 Resistor, 0805 Resistor, 200, 0805 Resistor, 0805 Resistor, 5.1M, Resistor, 1206 Resistor, 0805 Resistor, 11.4k, 0805 Diode, 1N4007, DO-41 Diode, 1N4148, LL-34 Diode, FR107, DO-15 Diode, 3100, DO-201 Designator Part Type Electrolytic Capacitor, F/400V, Capacitor, 2200pF, d=5mm Capacitor, 10F, d=4.5mm Capacitor, 22nF, 0805 Capacitor, 0.47F, 0805 Electrolytic Capacitor, 1000F Electrolytic Capacitor, 220F Capacitor, 2200pF Capacitor, 1nF, 0805 Inductor, 300H/0.3A Inductor, 100H/1A Transformer, EE-20 Zener, 13V/1W Transistor, APT13003E, TO-126 AP3710 Opto-coupler, PC817, DIP-4
AP3710
R15, Resistor, 0805
Aug. 2008 Rev.
Semiconductor Manufacturing Limited
Data Sheet POWER CONTROLLER OFF-LINE ADAPTER Mechanical Dimensions SOIC-8 Unit: mm(inch) AP3710
4.700(0.185) 5.100(0.201)
1.350(0.053) 1.750(0.069)
0.320(0.013)
0.675(0.027) 0.725(0.029)
5.800(0.228) 6.200(0.244)
20:1
1.270(0.050)
0.100(0.004) 0.300(0.012) R0.150(0.006)
0.800(0.031)
0.200(0.008)
1.000(0.039) 3.800(0.150) 4.000(0.157)
0.330(0.013) 0.510(0.020)
0.190(0.007) 0.250(0.010) 0.900(0.035)
R0.150(0.006)
0.450(0.017) 0.800(0.031)
Aug. 2008 Rev.
Semiconductor Manufacturing Limited
Data Sheet POWER CONTROLLER OFF-LINE ADAPTER Mechanical Dimensions (Continued) DIP-8 Unit: mm(inch) AP3710
0.700(0.028) 7.620(0.300)TYP 1.524(0.060)
3.710(0.146) 4.310(0.170)
3.200(0.126) 3.600(0.142)
3.000(0.118) 3.600(0.142)
0.510(0.020)MIN
0.254(0.010)TYP 0.360(0.014) 0.560(0.022) 2.540(0.100) 0.130(0.005)MIN
0.204(0.008) 0.360(0.014) 8.200(0.323) 9.400(0.370)
R0.750(0.030) 3.000(0.118) Depth 0.100(0.004) 0.200(0.008) 9.000(0.354) 9.400(0.370)
6.200(0.244) 6.600(0.260)
Aug. 2008 Rev.
Semiconductor Manufacturing Limited
Semiconductor Manufacturing Limited
http://www.bcdsemi.com
IMPORTANT NOTICE Semiconductor Manufacturing Limited reserves right make changes without further notice products specifications herein. Semiconductor Manufacturing Limited does assume responsibility products particular purpose, does Semiconductor Manufacturing Limited assume liability arising application products circuits. Semiconductor Manufacturing Limited does convey license under patent rights other rights rights others.
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