Fairchild FSEZ1016A service manual

FSEZ1016A

Primary-Side-Regulation PWM Integrated Power MOSFET

FSEZ1016A — Primary-Side-Regulation PWM Integrated Power MOSFET

January 2010

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  V

 V

Over-Voltage Protection (OVP) with

DD

Auto-Restart

Under-Voltage Lockout (UVLO)

DD

 SOIC-7 Package

Applications

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.

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

Figure 1. Typical Output V-I Characteristic

 AN-6067 Design Guide for FAN100/102 and

FSEZ1016A/1216

Ordering Information

Operating

Part Number

Temperature

Range

FSEZ1016AMY -40°C to +125°C 600V

For Fairchild’s definition of Eco Status, please visit: http://www.fairchildsemi.com/company/green/rohs_green.html.

MOSFET

BV

DSS

MOSFET

R

DS(ON)

9.3Ω

(Typical)

Eco

Status

Green

Package

7-Lead, Small Outline Integrated Circuit Package (SOIC)

Packing

Method

Tape & Reel

Application Diagram

Bridge

rectifier

diode

FSEZ1016A — Primary-Side-Regulation PWM Integrated Power MOSFET

R

C

SN2

V

O

R

D

DD

SN1CSN1

D

SN

N

P

V

DL

+

R

C

-

DL

START

D

R

N

S

C

O

I

O

AC line

R

CS

C

COMI

R

COMI

Internal Block Diagram

C

DD

FSEZ1016A

CS

1

2

GND

3

COMI

COMV

4 5

C

COMV

R

COMV

DRAIN

VDD

8

6

VS

Figure 2. Typical Application

N

A

R

S1

R

S2

C

S

Figure 3. Functional Block Diagram

Marking Information

ZXYTT

EZ1016A

TPM

Pin Configuration

FSEZ1016A — Primary-Side-Regulation PWM Integrated Power MOSFET

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

Pin Definitions

Pin # Name Description

1

2

3

4

5

6

7

8

CS

GND

COMI

COMV

VS

VDD

NC No connection.

DRAIN

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 V threshold voltages for startup and turn-off are 16V and 5V, respectively. The operating current is lower than 5mA.

Drain. This pin is the high-voltage power MOSFET drain.

Figure 5. Pin Configuration

capacitor of typically 10µF. The

DD

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 Parameter Min. Max. Unit

VDD DC Supply Voltage

VVS VS Pin Input Voltage -0.3 7.0 V

VCS CS Pin Input Voltage -0.3 7.0 V

V

Voltage-Error Amplifier Output Voltage -0.3 7.0 V

COMV

V

Voltage-Error Amplifier Output Voltage -0.3 7.0 V

COMI

VDS Drain-Source Voltage 600

ID Continuous Drain Current

IDM Pulsed Drain Current 4 A

EAS Single Pulse Avalanche Energy 33 mJ

IAR Avalanche Current 1 A

PD

Θ

ΘJC

Power Dissipation (T

Thermal Resistance (Junction-to-Air) 153 °C/W

JA

Thermal Resistance (Junction-to-Case) 39 °C/W

TJ Operating Junction Temperature -40 +150 °C

T

Storage Temperature Range -55 +150 °C

STG

TL Lead Temperature (Wave Soldering or IR, 10 Seconds) +260 °C

ESD

Electrostatic Discharge Capability

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.

(1,2)

30 V

V

T

=25°C 1.0 A

C

TC=100°C 0.6 A

＜50°C)

A

Human Body Model, JEDEC: JESD22-A114 Charged Device Model, JEDEC: JESD22-C101

660 mW

2

kV

2

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 Parameter Conditions Min. Typ. Max. Unit

TA Operating Ambient Temperature -40 +125 °C

Electrical Characteristics

VDD=15V and TA=-40°C~+125°C (TA=TJ), unless otherwise specified.

Symbol Parameter Conditions Min. Typ. Max. Units

VDD Section

VOP Continuously-Operating Voltage 25 V

V

Turn-On Threshold Voltage 15 16 17 V

DD-ON

V

Turn-Off Threshold Voltage 4.5 5.0 5.5 V

DD-OFF

I

Startup Current 0<VDD<V

DD-ST

V

=20V, fS= f

I

Operating Current

DD-OP

I

DD-GREEN

V

t

D-VDDOVP

Green Mode Operating Supply Current

VDD OVP Level

DD-OVP

V

OVP Debounce Time

DD

VVS=2V, VCS=3V C

=1nF

L

=20V, VVS=2.7V

V

DD

=1nF, V

C

L

fS=f

OSC-N-MIN

VCS=3V, VVS=2.3V

fS=f

OSC

Oscillator Section

f

Frequency

OSC

f

Frequency Hopping Period TA=25°C 3 ms

FHR

f

OSC-N-MIN

f

OSC-CM-MIN

Minimum Frequency at No-Load VVS=2.7V, V

Minimum Frequency at CCM VVS=2.3V, VCS=0.5V 20 KHz

Center Frequency T

Frequency Hopping Range TA=25°C ±1.8 ±2.6 ±3.6

fDV Frequency Variation vs. VDD Deviation

fDT

Frequency Variation vs. Temperature Deviation

=25°C 40 43 46

A

T

=25°C, VDD=10V to

A

25V

TA=-40°C to +125°C 20 %

Voltage-Sense Section

I

Sink Current for Brownout Protection RVS=20kΩ 180 μA

VS-UVP

Itc IC Compensation Bias Current 9.5 μA

=0V, TA=25°C,

V

BIAS-COMV

Adaptive Bias Voltage Dominated by V

COMV

=20KΩ

R

VS

Current-Sense Section

tPD Propagation Delay to Gate Output 100 200 ns

= -0.8V, RCS=2kΩ

V

t

Minimum On Time at No-Load

MIN-N

t

Minimum On Time in CC Mode VVS=0V, V

MINCC

V

VS

COMV

=1V

VTH Threshold Voltage for Current Limit 1.3 V

Current-Error-Amplifier Section

VIR Reference Voltage 2.475 2.500 2.525 V

I

Output Sink Current

I-SINK

I

Output Source Current

I-SOURCE

V

Output High Voltage

I-HGH

VCS=3V, V

VCS=0V, V

=0V

V

CS

-0.16V 3.7 10.0 μA

DD-ON

OSC

3.5 5.0 mA

COMV

=0V

1.0 2.5 mA

, VCS=0V

27 28 29 V

, VVS=2.3V

COMV

=0V 550 Hz

100 250 400 μs

5 %

1.4 V

1100 ns

=2V 300 ns

COMV

COMI

=2.5V

55 μA

4.5 V

FSEZ1016A — Primary-Side-Regulation PWM Integrated Power MOSFET

KHz

Continued on the following page…

Fairchild FSEZ1016A service manual

Specifications and Main Features

Frequently Asked Questions

User Manual