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What is FSEZ1216B?

This electronic component, produced by the manufacturer "Fairchild Semiconductor", performs the same function as "Primary-Side-Regulation PWM Integrated Power MOSFET".


FSEZ1216B Datasheet PDF - Fairchild Semiconductor

Part Number FSEZ1216B
Description Primary-Side-Regulation PWM Integrated Power MOSFET
Manufacturers Fairchild Semiconductor 
Logo Fairchild Semiconductor Logo 


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January 2009
FSEZ1216B
Primary-Side-Regulation PWM Integrated Power MOSFET
Features
ƒ Constant-Voltage (CV) and Constant-Current (CC)
Control without Secondary-Feedback Circuitry
ƒ Green-Mode Function: PWM Frequency Linearly
Decreasing
ƒ Fixed PWM Frequency at 50kHz with Frequency
Hopping to Solve EMI Problems
ƒ Cable Compensation in CV mode
ƒ Low Startup Current: 10μA
ƒ Low Operating Current: 3.5mA
ƒ Peak-Current-Mode Control in CV Mode
ƒ Cycle-by-Cycle Current Limiting
ƒ VDD Over-Voltage Protection (OVP) with
Auto-Restart
ƒ VDD Under-Voltage Lockout (UVLO)
ƒ Fixed Over-Temperature Protection (OTP)
with Latch
ƒ DIP-8 Package Available
Description
This highly integrated PWM controller provides several
features to enhance the performance of low-power
flyback converters. The proprietary topology enables
most simplified circuit design especially for battery
charger applications. A low-cost, smaller, and lighter
charger results when compared to a conventional
design or a linear transformer. The startup current is
only 10μA, which allows large startup resistance for
further power saving.
To minimize the standby-power consumption, the
proprietary green-mode function provides off-time
modulation to linearly decrease PWM frequency under
light-load conditions. This green-mode function assists
the power supply in meeting power conservation
requirements.
By using FSEZ1216B, a charger can be implemented
with few external components and minimized cost. A
typical output CV/CC characteristic envelope is shown
in Figure 1.
FSEZ1216B series controllers are available in an 8-pin
DIP package.
Applications
www.DataShƒeet4BUa.ctotemry Chargers for Cellular Phones, Cordless
Phones, PDA, Digital Cameras, Power Tools
ƒ Best Choice to Replace Linear Transformer and
RCC SMPS
Figure 1. Typical Output V-I Characteristic
Ordering Information
Part Number
FSEZ1216BNY
Operating
Temperature Range
-40°C to +105°C
Eco
Status
Green
Package
8-Lead, Dual Inline Package (DIP-8)
Packing
Method
Tube
For Fairchild’s definition of “green” Eco Status, please visit: http://www.fairchildsemi.com/company/green/rohs_green.html.
© 2008 Fairchild Semiconductor Corporation
FSEZ1216B Rev. 1.0.0
www.fairchildsemi.com

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FSEZ1216B equivalent
Electrical Characteristics
VDD=15V, TA=25°C, unless otherwise specified.
Symbol
Parameter
Conditions
VDD SECTION
VOP
VDD-ON
VDD-OFF
IDD-ST
IDD-OP
IDD-GREEN
VDD-OVP
Continuously Operating Voltage
Turn-On Threshold Voltage
Turn-Off Threshold Voltage
Startup Current
Operating Current
Green-Mode Operating Supply
Current
VDD Over-Voltage-Protection
Level
0<VDD<VDD-ON-0.16V
VDD=20V, fS=fOSC,
VVS=2V, VCS=3V,
CL=1nF
VDD=20V, VVS=2.7V
VCS=0V, VCOMV=0V
fS=fOSC-N-MIN, CL=1nF
VVS=2.3V, VCS=3V
tD-VDDOVP
VDD Over-Voltage-Protection
Debounce Time
fS=fOSC, VVS=2.3V
OSCILLATOR SECTION
Center
Frequency
TA=25°C, VVS=2.3V
fOSC
Frequency
Frequency-
Hopping Range
VCS=1.5V, VVS=2V
tFHR
fOSC-N-MIN
fOSC-CM-MIN
fDV
Frequency-Hopping Period
Minimum Frequency at No-Load
Minimum Frequency at CCM
Frequency Variation vs. VDD
Deviation
VCS=1.5V, VVS=2V
VVS=2.7V, VCOMV=0V
VVS=2.3V, VCS=0.5V
VDD=10V to 25V
fDT
Frequency Variation vs.
Temperature Deviation
www.DataShVeOet4LUT.cAoGmE-SENSE SECTION
TA=-40°C to 105°C
IVS-UVP
Sink Current for Brownout
Protection
RVS=20K
Itc
VBIAS-COMV
IC Compensation Bias Current
Adaptive Bias Voltage
Dominated by VCOMV
VCOMV=0V,RVS=20K
Min.
15
4.5
27
100
48
±1.0
Typ.
16
5.0
10
3.5
1
28
250
50
±1.5
2.56
500
18
125
9.5
1.4
Max.
25
17
5.5
20
5.0
2
29
400
55
±2.3
5
15
Units
V
V
V
μA
mA
mA
V
μs
KHz
ms
Hz
KHz
%
%
μA
μA
V
© 2008 Fairchild Semiconductor Corporation
FSEZ1216B Rev. 1.0.0
5
www.fairchildsemi.com


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Featured Datasheets

Part NumberDescriptionMFRS
FSEZ1216The function is Primary-Side-Regulation PWM Integrated Power MOSFET. Fairchild SemiconductorFairchild Semiconductor
FSEZ1216BThe function is Primary-Side-Regulation PWM Integrated Power MOSFET. Fairchild SemiconductorFairchild Semiconductor

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