AP3700 green-mode pulse width modulation (PWM) controller. specially d

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POWER CONTROLLER OFF-LINE BATTERY CHARGER AP3700
AP3700 green-mode pulse width modulation (PWM) controller. specially designed power applications such off-line battery chargers, where needs standby power, space saving cost required. battery charger rated 5V/1A, maximum standby power only 0.18Watt. normal operation, AP3700 switches fixed switching frequency kHz. With current limit capability 420mA, AP3700 directly drive emitter high voltage transistor source MOSFET. When output power falls below given level, enters skip cycle mode reduce power consumption. AP3700 also features under-voltage lockout, overcurrent short circuit protections. AP3700 available TO-92 package.
Features
Current Mode Control with Skip Cycle Capability Lower Operating Current: 0.45mA Fixed Switching Frequency: Frequency Dither EMI: ±2.5kHz Under-Voltage Lockout Protection Over-Current Protection Internal Short Circuit Protection Higher Output Breakdown Voltage Lower Total Cost Solution
Applications
Battery Chargers Off-Line Power Supplies
TO-92
Figure Package Types AP3700
Jan. 2007 Rev.
Semiconductor Manufacturing Limited
POWER CONTROLLER OFF-LINE BATTERY CHARGER AP3700
Configuration
Package (TO-92)
Figure Configuration AP3700 (Top View)
Description
Number TO-92 Name Function power supply generally connected opto-coupler's emitter Supply ground output pin, connected emitter transistor source MOSFET
Jan. 2007 Rev.
Semiconductor Manufacturing Limited
POWER CONTROLLER OFF-LINE BATTERY CHARGER AP3700
Functional Block Diagram
UVLO COMPARATOR VREF
REGULATOR
SHORT CIRCUIT COMPARATOR
SLOPE RAMP OSCILLATOR
VREF
CLAMP COMPARATOR
BANDGAP VREF BIAS
COMPARATOR CONTROL
DRIVER
Figure Functional Block Diagram AP3700
Jan. 2007 Rev.
Semiconductor Manufacturing Limited
POWER CONTROLLER OFF-LINE BATTERY CHARGER AP3700
Ordering Information
AP3700 Circuit Type Lead Free Ammo TO-92 Blank: Bulk
Package TO-92
Package TO-92
Switching Frequency 60kHz
Temperature Range 85oC
Part Number AP3700Z-E1 AP3700ZTR-E1
Marking 3700Z-E1 3700Z-E1
Packing Type Bulk Ammo
Semiconductor's Pb-free products, designated with "E1" suffix part number, RoHS compliant.
Absolute Maximum Ratings (Note
Parameter Supply Voltage Voltage Output Current Power Dissipation Operating Junction Temperature Storage Temperature Lead Temperature (Soldering, 10s) (Machine Model) Value -0.3 -0.3 Internally limited 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.
Jan. 2007 Rev.
Semiconductor Manufacturing Limited
POWER CONTROLLER OFF-LINE BATTERY CHARGER AP3700
Electrical Characteristics
(VCC=4V, TJ=25oC, unless otherwise specified.)
Parameter UVLO SECTION Start-up Voltage Minimal Operating Voltage (ST) VOPR(Min) ICC(OPR) RVCC ICC=10mA VCC=3.8 4.8V VCC=4V 5.00 5.25 3.65 5.50 Symbol Conditions Unit
STANDBY CURRENT SECTION Start-up Current Operating Current Zener Voltage Dynamic Impedance INTERNAL OSCILLATOR Switching Frequency Frequency Dither Temperature Stability DRIVE OUTPUT SECTION Start-up Voltage Short Circuit Threashold Voltage Rise Time Fall Time Maximum Duty Cycle Minimum Duty Cycle Driver On-Resistance Switch Current (OUT) Effective Current Limit Current Coefficient ILIM ROUT DMAX CL=1nF, pull-up CL=1nF, pull-up VOPR(Min) 0.2V VCC=VTH (ST)-0.2V IOUT=0.06A Driver off, VOUT=10V VOPR+0.1V -0.3 0.22 0.45
±2.5
Jan. 2007 Rev.
Semiconductor Manufacturing Limited
POWER CONTROLLER OFF-LINE BATTERY CHARGER AP3700
Typical Performance Characteristics
Operating Current (µA)
Start-up Current (µA)
Ambient Temperature
Ambient Temperature
Figure Operating Current Ambient Temperature
Figure Start-up Current Ambient Temperature
Switching Frequency (KHz)
Start-up Current (µA)
High Side frequency dither
Side frequency dither
Voltage
Ambient Temperature
Figure Switching Frequency Ambient Temperature
Figure Start-up Current Voltage
Jan. 2007 Rev.
Semiconductor Manufacturing Limited
POWER CONTROLLER OFF-LINE BATTERY CHARGER AP3700
Function Description
Startup Circuit Figure functional block diagram AP3700, there external pins: pin, pin. typical application shown Figure used both bias supply feedback control. directly drives external transistor MOSFET, also provides initial bias power UVLO comparator. When works mode, auxiliary winding will supply enough operating current. Figure shows start-up sequence VOUT.
Figure Frequency Dither Influences Swithcing Cycle
CH1:
AP3700 reference switching frequency kHz, frequency deviation ±2.5kHz period 2ms. Figure shows frequency dither influence waveform Current Limit Control AP3700 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.
CH2:
Figure Start-up Sequence VOUT
VCC/Feedback Control opto-coupler secondary constant voltage/ current controller consists voltage feedback network. When load heavy, voltage will lower enlarge duty cycle; contrary, load drops, voltage will rise reduce duty cycle. Frequency Dither Frequency dither performed periodically spreading single switching frequency into adjacent frequency band, peak energy spread. This technique improve reducing both quasipeak average emissions.
Jan. 2007 Rev.
Semiconductor Manufacturing Limited
POWER CONTROLLER OFF-LINE BATTERY CHARGER AP3700
Typical Application
10/1W
Bridge D1-D4 1N4007*4
330µ 4.7µ
1.5M 100k
EE16
SB240
470µ
5.5µ
470µ
5V/1A
85-264V
4.7µ
2200p
6.2k
FR107
1N4148 1N4148
APT13003
1N4148
100k
0.1µ
PC817
2.2n
3.3n
VOUT
VCTRL
ICTRL
VSENSE
AP3700
AP4313
Figure 5V/1A Output Battery Charger Mobile Phone
Jan. 2007 Rev.
Semiconductor Manufacturing Limited
POWER CONTROLLER OFF-LINE BATTERY CHARGER AP3700
Mechanical Dimensions TO-92 Unit: mm(inch)
1.100(0.043) 1.400(0.055) 3.430(0.135) 0.360(0.014) 0.510(0.020)
3.300(0.130)
3.700(0.146)
0.000(0.000) 0.380(0.015) 1.600(0.063) 4.400(0.173) 4.700(0.185)
4.300(0.169)
4.700(0.185)
0.380(0.015) 0.550(0.022)
1.270(0.050)
2.440(0.096) 2.640(0.104)
Jan. 2007 Rev.
14.100(0.555) 14.500(0.571)
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.
MAIN SITE Semiconductor Manufacturing Limited
Wafer Shanghai SIM-BCD Semiconductor Manufacturing Limited 800, Shan Road, Shanghai 200233, China Tel: +86-21-6485 1491, Fax: +86-21-5450 0008
Semiconductor Manufacturing Limited
Design Group Advanced Analog Circuits (Shanghai) Corporation Zone 900, Shan Road, Shanghai 200233, China Tel: +86-21-6495 9539, Fax: +86-21-6485 9673
REGIONAL SALES OFFICE
Shenzhen Office Shanghai SIM-BCD Semiconductor Manufacturing Co., Ltd. Shenzhen Office Advanced Analog Circuits (Shanghai) Corporation Shenzhen Office Room Noble Center, No.1006, Fuzhong Road, Futian District, Shenzhen 518026, China Tel: +86-755-8826 7951 Fax: +86-755-8826 7865 Taiwan Office Semiconductor (Taiwan) Company Limited 298-1, Guang Road, Nei-Hu District, Taipei, Taiwan Tel: +886-2-2656 2808 Fax: +886-2-2656 2806 Office Semiconductor Corporation 30920 Huntwood Ave. Hayward, 94544, U.S.A +1-510-324-2988 Fax: +1-510-324-2788

AP3700 green-mode pulse width modulation (PWM) controller. specially d

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