Document
FSEZ1016A — Primary-Side-Regulation PWM Integrated Power MOSFET
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 43 kHz with Frequency
Hopping to Reduce EMI
Low Startup Current: 10 μA Maximum Low Operating Current: 3.5 mA 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
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
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.
VO
±7%
IO
Figure 1. Typical Output V-I Characteristic
Ordering Information
Part Number
Operating
MOSFET
Temperature Range BVDSS
FSEZ1016AMY
-40°C to +125°C
600 V
MOSFET RDS(ON)
9.3 Ω (Typical)
Package
7-Lead, Small Outline Integrated Circuit Package (SOIC)
Packing Method
Tape & Reel
© 2009 Fairchild Semiconductor Corporation FSEZ1016A • Rev. 2, Feb-2020
www.fairchildsemi.com
FSEZ1016A — Primary-Side-Regulation PWM Integrated Power MOSFET
Application Diagram
Internal Block Diagram
Figure 2. Typical Application
© 2009 Fairchild Semiconductor Corporation FSEZ1016A • Rev. 2, Feb-2020
Figure 3. Functional Block Diagram
2
www.fairchildsemi.com
FSEZ1016A — Primary-Side-Regulation PWM Integrated Power MOSFET
Marking Information Pin Configuration
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
Figure 4. Top Mark
Figure 5. Pin Configuration
Pin Definitions
Pin # 1 2 3 4 5
6
7 8
Name
CS GND COMI COMV VS
VDD
NC DRAIN
.