AP3700/A green-mode pulse width modulation (PWM) controller. specially
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POWER CONTROLLER OFF-LINE BATTERY CHARGER AP3700/A
AP3700/A 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 0.18W. normal operation, AP3700/A switches fixed switching frequency kHz. With current limit capability 460mA AP3700 500mA AP3700A, AP3700/A directly drive emitter high voltage transistor. When output power falls below given level, enters skip cycle mode reduce power consumption. AP3700/A also features under-voltage lockout, over-current short circuit protections. AP3700/A available TO-92 package.
Features
Current Mode Control with Skip Cycle Capability Lower Operating Current: 0.45mA Fixed Switching Frequency: Frequency Dithering EMI: ±2.5kHz Under-Voltage Lockout Protection Over-Current Protection Internal Short Circuit Protection Higher Output Voltage Terminal Total Cost Solution
Applications
Battery Chargers Off-Line Power Supplies
TO-92 (Bulk Packing)
TO-92 (Ammo Packing)
Figure Package Types AP3700/A
Mar. 2008 Rev.
Semiconductor Manufacturing Limited
POWER CONTROLLER OFF-LINE BATTERY CHARGER AP3700/A
Configuration
Package (TO-92)
Figure Configuration AP3700/A (Top View)
Description
Number Name Supply ground output pin, connected emitter transistor source MOSFET Function power supply generally connected opto-coupler's emitter
Mar. 2008 Rev.
Semiconductor Manufacturing Limited
POWER CONTROLLER OFF-LINE BATTERY CHARGER AP3700/A
Functional Block Diagram
UVLO COMPARATOR VREF 1.24V
REGULATOR SHORT CIRCUIT COMPARATOR
VREF 1.24V
SLOPE RAMP OSCILLATOR COMPARATOR CONTROL
CLAMP COMPARATOR
BANDGAP BIAS VREF
DRIVER
Figure Functional Block Diagram AP3700/A
Mar. 2008 Rev.
Semiconductor Manufacturing Limited
POWER CONTROLLER OFF-LINE BATTERY CHARGER AP3700/A
Ordering Information
AP3700 Lead Free Green Ammo Blank: Bulk Blank: AP3700 AP3700A Package TO-92
Circuit Type
Package
Switching Frequency
Temperature Range
Part Number Lead Free AP3700Z-E1 AP3700ZTR-E1 AP3700AZ-E1 AP3700AZTR-E1 Green AP3700Z-G1 AP3700ZTR-G1 AP3700AZ-G1 AP3700AZTR-G1
Marking Lead Free 3700Z-E1 3700Z-E1 3700AZ-E1 3700AZ-E1 Green 3700Z-G1 3700Z-G1 3700AZ-G1 3700AZ-G1
Packing Type Bulk Ammo Bulk Ammo
TO-92
60kHz
85oC
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 (Note 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. Note Breadown Voltage. actual operating voltage greater than value listed here.
Mar. 2008 Rev.
Semiconductor Manufacturing Limited
POWER CONTROLLER OFF-LINE BATTERY CHARGER AP3700/A
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 (Note Operating Current Zener Voltage Dynamic Impedance INTERNAL OSCILLATOR Switching Frequency Frequency Dither Temperature Stability DRIVE OUTPUT SECTION Start-up Voltage Short Circuit Threashold Voltage (Note 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 AP3700 AP3700A -0.3 0.22 0.45
±2.5
Note AP3700/A emitter drive controller, controller will start only when voltage rises threshould value. Note AP3700/A performs short circuit function shutdown pulse when voltage drops below short circuit threshold value.
Mar. 2008 Rev.
Semiconductor Manufacturing Limited
POWER CONTROLLER OFF-LINE BATTERY CHARGER AP3700/A
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
Mar. 2008 Rev.
Semiconductor Manufacturing Limited
POWER CONTROLLER OFF-LINE BATTERY CHARGER AP3700/A
Function Description
Startup Circuit Figure functional block diagram AP3700/A, 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/A reference switching frequency kHz, frequency deviation ±2.5kHz period 2ms. Figure shows frequency dither influence waveform Current Limit Control AP3700/A 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.
Mar. 2008 Rev.
Semiconductor Manufacturing Limited
POWER CONTROLLER OFF-LINE BATTERY CHARGER AP3700/A
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
Mar. 2008 Rev.
Semiconductor Manufacturing Limited
POWER CONTROLLER OFF-LINE BATTERY CHARGER AP3700/A
Mechanical Dimensions TO-92 (Bulk Packing) 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)
Mar. 2008 Rev.
14.100(0.555) 14.500(0.571)
Semiconductor Manufacturing Limited
POWER CONTROLLER OFF-LINE BATTERY CHARGER AP3700/A
Mechanical Dimensions (Continued) TO-92 (Ammo Packing) Unit: mm(inch)
4.400(0.173) 4.700(0.185)
4.300(0.169)
1.100(0.043) 1.400(0.055) 3.430(0.135) 0.360(0.014) 0.510(0.020)
4.700(0.185)
1.270(0.050)
3.300(0.130)
3.700(0.146)
4.500(0.177) 5.500(0.217)
13.000(0.512)
0.000(0.000) 0.380(0.015) 1.600(0.063)
14.000(0.551)
0.380(0.015) 0.550(0.022)
2.540(0.100)
Mar. 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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