FSDH0265RL_NL Fairchild Semiconductor, FSDH0265RL_NL Datasheet

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FSDH0265RL_NL

Manufacturer Part Number
FSDH0265RL_NL
Description
Manufacturer
Fairchild Semiconductor
Datasheet

Specifications of FSDH0265RL_NL

Power Switch Family
FSDH0265
Power Switch On Resistance
5Ohm
Output Current
1.3A
Number Of Outputs
Single
Mounting
Surface Mount
Supply Current
3mA
Package Type
LSOP
Operating Temperature (min)
-25C
Operating Temperature (max)
85C
Operating Temperature Classification
Commercial
Pin Count
8
Power Dissipation
1.56W
Lead Free Status / Rohs Status
Compliant
Features
• Internal Avalanche Rugged Sense FET
• Consumes only 0.65W at 240VAC & 0.3W load with
• Frequency Modulation for low EMI
• Precision Fixed Operating Frequency
• Internal Start-up Circuit
• Pulse by Pulse Current Limiting
• Abnormal Over Current Protection
• Over Voltage Protection
• Over Load Protection
• Internal Thermal Shutdown Function
• Auto-Restart Mode
• Under Voltage Lockout
• Low Operating Current (3mA)
• Adjustable Peak Current Limit
• Built-in Soft Start
Applications
• SMPS for VCR, SVR, STB, DVD & DVCD
• SMPS for Printer, Facsimile & Scanner
• Adaptor for Camcorder
Description
The FSDx0265RN(x stands for M, H) are integrated Pulse
Width Modulators (PWM) and Sense FETs specifically
designed for high performance offline Switch Mode Power
Supplies (SMPS) with minimal external components. Both
devices are integrated high voltage power switching regula-
tors which combine an avalanche rugged Sense FET with a
current mode PWM control block. The integrated PWM con-
troller features include: a fixed oscillator with frequency
modulation for reduced EMI, Under Voltage Lock Out
(UVLO) protection, Leading Edge Blanking (LEB), opti-
mized gate turn-on/turn-off driver, Thermal Shut Down
(TSD) protection, Abnormal Over Current Protection
(AOCP) and temperature compensated precision current
sources for loop compensation and fault protection circuitry.
When compared to a discrete MOSFET and controller or
RCC switching converter solution, the FSDx0265RN reduce
total component count, design size, weight and at the same
time increase efficiency, productivity, and system reliability.
Both devices are a basic platform well suited for cost effec-
tive designs of flyback converters.
©2005 Fairchild Semiconductor Corporation
FSDH0265RN, FSDM0265RN
Green Mode Fairchild Power Switch (FPS
Advanced Burst-Mode Operation
Table 1. Notes: 1. Typical continuous power in a non-ven-
tilated enclosed adapter with sufficient drain pattern or
something as a heat sinker measured at 50°C ambient. 2.
Maximum practical continuous power in an open frame
design with sufficient drain pattern or something as a
heat sinker at 50°C ambient. 3. 230 VAC or 100/115 VAC
with doubler.
Typical Circuit
FSDM0265RN
FSDM0365RN
FSDH0265RN
FSDM0265RL
FSDM0365RL
FSDL0165RN
FSDL0365RN
FSDH0265RL
FSDL0165RL
FSDL0365RL
AC
IN
PRODUCT
FSDH321L
FSDL321L
FSDH321
FSDL321
Figure 1. Typical Flyback Application
Ipk
OUTPUT POWER TABLE
Vfb
Vstr
Adapt-
230VAC ±15%
PWM
13W
16W
16W
19W
19W
13W
16W
16W
19W
19W
11W
11W
11W
11W
er
(1)
Vcc
Drain
Frame
www.fairchildsemi.com
Open
Source
17W
17W
23W
27W
27W
30W
30W
17W
17W
23W
27W
27W
30W
30W
(3)
TM
(2)
Adapt-
)
11W
13W
13W
16W
16W
11W
13W
13W
16W
16W
er
8W
8W
8W
8W
85-265VAC
(1)
Rev.1.0.6
Frame
Open
12W
12W
17W
20W
20W
24W
24W
12W
12W
17W
20W
20W
24W
24W
OUT
DC
(2)

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FSDH0265RL_NL Summary of contents

Page 1

... RCC switching converter solution, the FSDx0265RN reduce total component count, design size, weight and at the same time increase efficiency, productivity, and system reliability. Both devices are a basic platform well suited for cost effec- tive designs of flyback converters. ©2005 Fairchild Semiconductor Corporation www.fairchildsemi.com OUTPUT POWER TABLE (3) 230VAC ±15% ...

Page 2

FSDH0265RN, FSDM0265RN Internal Block Diagram + V /V BURL BURH - V BURH Vcc Vcc I I delay 2. Vcc Vovp TSD 2 Vcc 2 8V/12V Vcc good Vcc Freq. Modulation ...

Page 3

... Sense FET source terminal on primary side and internal control ground. Positive supply voltage input. Although connected to an auxiliary transform- er winding, current is supplied from pin 5 (Vstr) via an internal switch during startup (see Internal Block Diagram section not until Vcc reaches the UVLO upper threshold (12V) that the internal start-up switch opens and de- vice power is supplied via the auxiliary transformer winding ...

Page 4

FSDH0265RN, FSDM0265RN Absolute Maximum Ratings (Ta=25°C, unless otherwise specified) Characteristic Maximum Drain Pin Voltage Maximum Vstr Pin Voltage (1) Drain Current Pulsed Single Pulsed Avalanche Energy Maximum Supply Voltage Analog Input Voltage Range Total Power Dissipation Operating Junction Temperature. Operating ...

Page 5

... Symbol Condition V =660V DSS V =0.8Max.Rating =0V =10V, I DS(ON ISS V =0V OSS F=1MHz C RSS T D(ON) V =325V (Sense FET switching time is essentially T D(OFF) independent of operating temperature OSC FSDH0265R F MOD F OSC FSDM0265R F MOD -25°C ≤ Ta ≤ 85°C - (2) FSDH0265R D MAX FSDM0265R D MIN V V =GND START =GND ...

Page 6

FSDH0265RN, FSDM0265RN Thermal Shutdown Shutdown Feedback Voltage Over Voltage Protection Shutdown Feedback Delay Current Leading Edge Blanking Time TOTAL DEVICE SECTION Operating Current Start Up Current Vstr Supply Voltage Note: ≤ 1. Pulse test: Pulse width 300uS, duty 2. These ...

Page 7

Comparison Between KA5x0265RN and FSDx0265RN Function KA5x0265RN Soft-Start not applicable External Current Limit not applicable Frequency Modulation not applicable Burst Mode Operation not applicable Drain Creepage at 1,02mm Package FSDx0265RN FSDx0265RN Advantages 15mS • Gradually increasing current limit during soft-start ...

Page 8

FSDH0265RN, FSDM0265RN Typical Performance Characteristics (Control Part) (These characteristic graphs are normalized 1.20 1.00 0.80 0.60 0.40 0.20 0.00 - emp[ ℃ ] Operating Frequency (Fosc) 1.20 1.00 0.80 0.60 0.40 0.20 0.00 -50 ...

Page 9

Typical Performance Characteristics 1.20 1.00 0.80 0.60 0.40 0.20 0.00 - emp[ ℃ ] Feedback Source Current (Ifb) 1.20 1.00 0.80 0.60 0.40 0.20 0.00 - emp[ ℃ ] Start up Current (Istart) 1.20 1.00 0.80 ...

Page 10

... Vstr pin. When Vcc reaches the UVLO start volt- age,12V, the FPS manner, the auto-restart can alternately enable and disable the switching of the power Sense FET until the fault condi- tion is eliminated. 4.1 Over Load Protection (OLP) : Overload is defined as the load current exceeding a pre-set level due to an unex- pected event ...

Page 11

... Vcc is proportional to the output voltage and the FPS Vcc instead of directly monitoring the output voltage mination of the switching operation. In order to avoid undes- ired activation of OVP during normal operation, Vcc should be properly designed to be below 19V. 5. Soft Start : The FPS that increases the feedback voltage together with the Sense FET current slowly after it starts up ...

Page 12

... V BURL Frequency Modulation : EMI reduction can be accom- plished by modulating the switching frequency of a switched power supply. Frequency modulation can reduce EMI by spreading the energy over a wider frequency range than the band width measured by the EMI test equipment. The amount of EMI reduction is directly related to the depth of the reference frequency ...

Page 13

Frequency (MHz) TM Figure 12. KA5-series FPS Full Range EMI scan(67KHz, no Frequency Modulation) with DVD Player SET Frequency (MHz) TM Figure 13. FSDX-series FPS (67KHz, with Frequency Modulation) with DVD Player SET 8. Adjusting Current limit function: As shown ...

Page 14

... Schottky diode to maximize efficiency. Diode D14 for the 5 V output type to center the 5 V output The 3.3 V and 5 V output voltage require two capacitors in parallel to meet the ripple current requirement. Switching noise filter- ing is provided by L3, L2 and L1. Resistor R15 prevents 14 C7 ...

Page 15

Transformer Specification 1. TRAN SFORM ER SPECIFIC ATION - SCHEM ATIC DIAG R AM (TRANSFORM ER INDING SPEC IFIC ATIO N NO. PIN(S → → ...

Page 16

FSDH0265RN, FSDM0265RN Layout Considerations DC_link Capacitor #1 : GND #2 : VCC #3 : Vfb #4 : Ipk #5 : Vstr #6 : Drain #7 : Drain #8 : Drain Figure 15. Layout Considerations for FSDx0265RN using 8DIP 16 SURFACE ...

Page 17

Package Dimensions 8DIP FSDH0265RN, FSDM0265RN 17 ...

Page 18

FSDH0265RN, FSDM0265RN Package Dimensions 18 (Continued) 8LSOP ...

Page 19

Ordering Information Product Number Package FSDM0265RN 8DIP FSDH0265RN 8DIP FSDM0265RL 8LSOP FSDH0265RL 8LSOP Marking Code BV DSS DM0265R 650V DH0265R 650V DM0265R 650V DH0265R 650V FSDH0265RN, FSDM0265RN F R OSC DS(on) 67KHz 5.0Ω 100KHz 5.0Ω 67KHz 5.0Ω 100KHz 5.0Ω 19 ...

Page 20

... FSDH0265RN, FSDM0265RN DISCLAIMER FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS. ...

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