FSEZ1016A — Primary-Side-Regulation PWM Integrated Power MOSFET
January 2010
FSEZ1016A
Primary-Side-Regulation PWM Integrated Power MOSFET
Features
Constant-Voltage (CV) and Constant-Current (CC) Control without Secondary-Feedback Circuitry Accurate Constant Current Achieved by Fairchild’s Proprietary TRUECURRENT™ Technique Green Mode: Frequency Reduction at Light-Load Fixed PWM Frequency at 43kHz with Frequency Hopping to Reduce EMI Low Startup Current: 10μA Maximum Low Operating Current: 3.5mA Peak-Current-Mode Control in CV Mode Cycle-by-Cycle Current Limiting Over-Temperature Protection (OTP) with Auto-Restart Brownout Protection with Auto-Restart VDD Over-Voltage Protection (OVP) with Auto-Restart VDD Under-Voltage Lockout (UVLO) SOIC-7 Package
Description
This primary-side PWM integrated power MOSFET significantly simplifies power supply designs that require CV and CC regulation capabilities. FSEZ1016A controls the output voltage and current precisely with only the information in the primary side of the power supply, not only removing the output current sensing loss, but also eliminating all secondary feedback circuitry. The green-mode function with a low startup current (10µA) maximizes the light-load efficiency so the power supply can meet stringent standby power regulations. Compared with conventional secondary-side regulation approach; the FSEZ1016A can reduce total cost, component count, size, and weight; while simultaneously increasing efficiency, productivity, and system reliability. FSEZ1016A is available in a 7-pin SOIC package. A typical output CV/CC characteristic envelope is shown in Figure 1.
Applications
Battery Chargers for Cellular Phones, Cordless Phones, PDAs, Digital Cameras, Power Tools Replaces Linear Transformer and RCC SMPS Offline High Brightness (HB) LED Drivers
Related Resources
AN-6067 Design Guide for FAN100/102 and FSEZ1016A/1216
Figure 1.
Typical Output V-I Characteristic
Ordering Information
Part Number Operating Temperature Range
-40°C to +125°C MOSFET BVDSS MOSFET RDS(ON) 9.3Ω (Typical)
Eco Status
Green
Package
7-Lead, Small Outline Integrated Circuit Package (SOIC)
Packing Method
Tape & Reel
FSEZ1016AMY
600V
For Fairchild’s definition of Eco Status, please visit: http://www.fairchildsemi.com/company/green/rohs_green.html.
© 2009 Fairchild Semiconductor Corporation FSEZ1016A • Rev. 1.0.2 www.fairchildsemi.com
FSEZ1016A — Primary-Side-Regulation PWM Integrated Power MOSFET
Application Diagram
CSN2 Bridge rectifier diode CDL RSN2 VO VDL + RSTART DSN DDD AC line RCS
1
RSN1
CSN1 NP NS
DR CO
IO
FSEZ1016A
CS DRAIN 8
CDD
NA
2 GND 3 COMI 4 COMV VDD 6 VS 5
RS1
RS2
CCOMI RCOMI CCOMV RCOMV CS
Figure 2.
Typical Application
Internal Block Diagram
Figure 3.
© 2009 Fairchild Semiconductor Corporation FSEZ1016A • Rev. 1.0.2
Functional Block Diagram
www.fairchildsemi.com 2
FSEZ1016A — Primary-Side-Regulation PWM Integrated Power MOSFET
Marking Information
F - Fairchild Logo Z - Plant Code X – 1-Digit Year Code Y – 1-Digit Week Code TT – 2-Digit Die Run Code T - Package Type (M=SOIC) P - Y: Green Package M - Manufacture Flow Code
ZXYTT EZ1016A TPM
Figure 4.
Top Mark
Pin Configuration
Figure 5.
Pin Configuration
Pin Definitions
Pin # 1 2 3 4 5 6 7 8 Name
CS GND COMI COMV VS
Description
Current Sense. This pin connects a current sense resistor to sense the MOSFET current for peak-current-mode control in CV mode and provides for output-current regulation in CC mode. Ground. Constant Current Loop Compensation. This pin connects a capacitor and a resistor between COMI and GND for compensation current loop gain. Constant Voltage Loop Compensation. This pin connects a capacitor and a resistor between COMV and GND for compensation voltage loop gain. Voltage Sense. This pin detects the output voltage information and discharge time base on voltage of auxiliary winding. This pin connected two divider resistors and one capacitor. Supply. The power supply pin. IC operating current and MOSFET driving current are supplied using this pin. This pin is connected to an external VDD capacitor of typically 10µF. The threshold voltages for startup and turn-off are 16V and 5V, respectively. The operating current is lower than 5mA. No connection. Drain. This pin is the high-voltage power MOSFET drain.
VDD NC DRAIN
© 2009 Fairchild Semiconductor Corporation FSEZ1016A • Rev. 1.0.2
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FSEZ1016A — Primary-Side-Regulation PWM Integrated Power MOSFET
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
VDD VVS VCS VCOMV VCOMI VDS ID IDM EAS IAR PD ΘJA ΘJC TJ TSTG TL ESD DC Supply Voltage
(1,2)
Parameter
VS Pin Input Voltage CS Pin Input Voltage Voltage-Error Amplifier Output Voltage Voltage-Error Amplifier Output Voltage Drain-Source Voltage Continuous Drain Current Pulsed Drain Current Single Pulse Avalanche Energy Avalanche Current Power Dissipation (TA<50°C) Thermal Resistance (Junction-to-Air) Thermal Resistance (Junction-to-Case) Operating Junction Temperature Storage Temperature Range Lead Temperature (Wave Soldering or IR, 10 Seconds) Electrostatic Discharge Capability Human Body Model, JEDEC: JESD22-A114 Charged Device Model, JEDEC: JESD22-C101 TC=25°C TC=100°C
Min.
-0.3 -0.3 -0.3 -0.3
Max.
30 7.0 7.0 7.0 7.0 600 1.0 0.6 4 33 1 660 153 39
Unit
V V V V V V A A A mJ A mW °C/W °C/W °C °C °C kV
-40 -55
+150 +150 +260 2 2
Notes: 1. Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. 2. All voltage values, except differential voltages, are given with respect to GND pin.
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
TA
Parameter
Operating Ambient Temperature
Conditions
Min.
-40
Typ.
Max.
+125
Unit
°C
© 2009 Fairchild Semiconductor Corporation FSEZ1016A • Rev. 1.0.2
www.fairchildsemi.com 4
FSEZ1016A — Primary-Side-Regulation PWM Integrated Power MOSFET
Electrical Characteristics
VDD=15V and TA=-40°C~+125°C (TA=TJ), unless otherwise specified.
Symbol
VDD Section VOP VDD-ON VDD-OFF IDD-ST IDD-OP
Parameter
Continuously-Operating Voltage Turn-On Threshold Voltage Turn-Off Threshold Voltage Startup Current Operating Current
Conditions
Min.
Typ.
Max. Units
25 V V V μA mA
15 4.5 0
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