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
V
DD
Over-Voltage Protection (OVP) with
Auto-Restart
V
DD
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
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
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
C
SN2
Bridge
rectifier
diode
C
DL
R
SN2
V
O
V
DL
+
-
R
START
D
SN
D
DD
AC line
R
CS
1
R
SN1
C
SN1
N
P
N
S
D
R
C
O
I
O
FSEZ1016A
CS
DRAIN
8
C
DD
N
A
2 GND
3 COMI
4 COMV
VDD 6
VS 5
R
S1
R
S2
C
COMI
R
COMI
C
COMV
R
COMV
C
S
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 V
DD
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
www.fairchildsemi.com
3
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
V
DD
V
VS
V
CS
V
COMV
V
COMI
V
DS
I
D
I
DM
E
AS
I
AR
P
D
Θ
JA
Θ
JC
T
J
T
STG
T
L
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 (T
A
＜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
T
C
=25°C
T
C
=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
T
A
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
V
DD
=15V and T
A
=-40°C~+125°C (T
A
=T
J
), unless otherwise specified.
Symbol
V
DD
Section
V
OP
V
DD-ON
V
DD-OFF
I
DD-ST
I
DD-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<V
DD
<V
DD-ON
-0.16V
V
DD
=20V, f
S
= f
OSC
V
VS
=2V, V
CS
=3V
C
L
=1nF
V
DD
=20V, V
VS
=2.7V
C
L
=1nF, V
COMV
=0V
f
S
=f
OSC-N-MIN
, V
CS
=0V
V
CS
=3V, V
VS
=2.3V
f
S
=f
OSC
, V
VS
=2.3V
T
A
=25°C
T
A
=25°C
T
A
=25°C
V
VS
=2.7V, V
COMV
=0V
V
VS
=2.3V, V
CS
=0.5V
T
A
=25°C, V
DD
=10V to
25V
T
A
=-40°C to +125°C
27
100
40
±1.8
16
5.0
3.7
3.5
17
5.5
10.0
5.0
I
DD-GREEN
V
DD-OVP
t
D-VDDOVP
Green Mode Operating Supply Current
V
DD
OVP Level
V
DD
OVP Debounce Time
Center Frequency
Frequency Hopping Range
1.0
28
250
43
±2.6
3
550
20
2.5
29
400
46
±3.6
mA
V
μs
Oscillator Section
f
OSC
f
FHR
f
OSC-N-MIN
f
OSC-CM-MIN
f
DV
f
DT
Frequency
KHz
ms
Hz
KHz
5
20
%
%
Frequency Hopping Period
Minimum Frequency at No-Load
Minimum Frequency at CCM
Frequency Variation vs. V
DD
Deviation
Frequency Variation vs. Temperature
Deviation
Sink Current for Brownout Protection
IC Compensation Bias Current
Adaptive Bias Voltage Dominated by V
COMV
Voltage-Sense Section
I
VS-UVP
I
tc
V
BIAS-COMV
R
VS
=20kΩ
V
COMV
=0V, T
A
=25°C,
R
VS
=20KΩ
180
9.5
1.4
μA
μA
V
Current-Sense Section
t
PD
t
MIN-N
t
MINCC
V
TH
V
IR
I
I-SINK
I
I-SOURCE
V
I-HGH
Propagation Delay to Gate Output
Minimum On Time at No-Load
Minimum On Time in CC Mode
Threshold Voltage for Current Limit
Reference Voltage
Output Sink Current
Output Source Current
Output High Voltage
V
CS
=3V, V
COMI
=2.5V
V
CS
=0V, V
COMI
=2.5V
V
CS
=0V
4.5
2.475
V
VS
= -0.8V, R
CS
=2kΩ
V
COMV
=1V
V
VS
=0V, V
COMV
=2V
100
1100
300
1.3
2.500
55
55
2.525
200
ns
ns
ns
V
V
μA
μA
V
Current-Error-Amplifier Section
Continued on the following page…
© 2009 Fairchild Semiconductor Corporation
FSEZ1016A • Rev. 1.0.2
www.fairchildsemi.com
5
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