FSBH0F70A_F116, FSBH0170/0270/0370_F116 — Green Mode Fairchild Power Switch (FPS™)
April 2011
FSBH0F70A _F116, FSBH0170_F116, FSBH0270_F116, FSBH0370_F116 Green Mode Fairchild Power Switch (FPS™)
Features
Brownout Protection with Hysteresis Built-In 5ms Soft-Start Function Internal Avalanche-Rugged 700V SenseFET Low Acoustic Noise During Light-Load Operation High-Voltage Startup Linearly Decreasing PWM Frequency to 18KHz Peak-Current-Mode Control Cycle-by-Cycle Current Limiting Leading-Edge Blanking (LEB) Synchronized Slope Compensation Internal Open-Loop Protection VDD Under-Voltage Lockout (UVLO) VDD Over-Voltage Protection (OVP) Internal Auto-Restart Circuit (OVP, OTP) Constant Power Limit (Full AC Input Range) Internal OTP Sensor with Hysteresis VIN Pin for Pull-HIGH Latch Function and Pull-LOW Auto-Recovery Protection
Description
The highly integrated FSBH-series consists of an integrated current-mode Pulse Width Modulator (PWM) and an avalanche-rugged 700V SenseFET. It is specifically designed for high-performance offline Switched-Mode Power Supplies (SMPS) with minimal external components. The integrated PWM controller features include a proprietary green-mode function that provides off-time modulation to linearly decrease the switching frequency at light-load conditions to minimize standby power consumption. To avoid acoustic-noise problems, the minimum PWM frequency is set above 18kHz. This green-mode function enables the power supply to meet international power conservation requirements. The PWM controller is manufactured using the BiCMOS process to further reduce power consumption. The FSBH-series turns off some internal circuits to improve power saving when VFB is lower than 1.6V, which allows an operating current of only 2.5mA. The FSBH-series has built-in synchronized slope compensation to achieve stable peak-current-mode control. The proprietary external line compensation ensures constant output power limit over a wide AC input voltage range, from 90VAC to 264VAC. The FSBH-series provides many protection functions. In addition to cycle-by-cycle current limiting, the internal open-loop protection circuit ensures safety when an open-loop or output short occurs. PWM output is disabled until VDD drops below the VTH-OLP, then the controller starts up again. As long as VDD exceeds 28V, the internal OVP circuit is triggered. Compared with a discrete MOSFET and controller or RCC switching converter solution, the FSBH-series reduces component count, design size, and weight; while increasing efficiency, productivity, and system reliability. These devices provide a basic platform that is well suited for the design of cost-effective flyback converters, such as in PC auxiliary power supplies.
Applications
General-purpose switched-mode power supplies and flyback power converters, including:
Auxiliary Power Supply for PC and Server SMPS for VCR, SVR, STB, DVD & DVCD Player, Printer, Facsimile, and Scanner Adapter for Camcorder
© 2010 Fairchild Semiconductor Corporation FSBH0F70A_F116, FSBH0170/0270/0370_F116 • Rev. 1.0.1
www.fairchildsemi.com 1
FSBH0F70A_F116, FSBH0170/0270/0370_F116 — Green Mode Fairchild Power Switch (FPS™)
Ordering Information
Part Number
FSBH0F70ANY_F116 FSBH0170NY_F116 FSBH0270NY_F116 FSBH0370NY_F116
SenseFET
0.5A 700V 1.0A 700V 2.0A 700V 3.0A 700V
VIN Pin (PIN #4)
Not Available Enabled
Operating Temperature Range
Package
Packing Method
-40°C to +105°C
8-Pin, Dual In-Line Package (DIP)
Tube
Typical Application Diagram
HV
Drain
VIN FB VDD GND
Figure 1.
Typical Flyback Application
Output Power Table(1)
Product
FSBH0F70A_F116 FSBH0170_F116 FSBH0270_F116
230VAC ± 15%(2) Adapter
7W 10W 14W
(3)
85-265VAC
(4)
Open Frame
10W 15W 20W
Adapter
6W 9W 11W
(3)
Open Frame(4)
8W 13W 16W
FSBH0370_F116 17.5W 25W 13W 19W Notes: 1. The maximum output power can be limited by junction temperature. 2. 230 VAC or 100/115 VAC with doublers. 3. Typical continuous power in a non-ventilated enclosed adapter with sufficient drain pattern as a heat sink at 50C ambient. 4. Maximum practical continuous power in an open-frame design with sufficient drain pattern as a heat sink at 50C ambient.
© 2010 Fairchild Semiconductor Corporation FSBH0F70A_F116, FSBH0170/0270/0370_F116 • Rev. 1.0.1
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FSBH0F70A_F116, FSBH0170/0270/0370_F116 — Green Mode Fairchild Power Switch (FPS™)
Block Diagram
Figure 2.
FSBH0170/0270/0370_F116 Internal Block Diagram
Figure 3.
FSBH0F70A_F116 Internal Block Diagram
© 2010 Fairchild Semiconductor Corporation FSBH0F70A_F116, FSBH0170/0270/0370_F116 • Rev. 1.0.1
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FSBH0F70A_F116, FSBH0170/0270/0370_F116 — Green Mode Fairchild Power Switch (FPS™)
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 (N:DIP) P – Y: Green Package M – Manufacture Flow Code
Figure 4.
Pin Configuration and Top Mark Information
Pin Definitions
Pin #
1 2 3
Name
GND VDD FB VIN NC
Description
Ground. SenseFET source terminal on primary side and internal controller ground. Power Supply. The internal protection circuit disables PWM output as long as VDD exceeds the OVP trigger point. Feedback. The signal from the external compensation circuit is fed into this pin. The PWM duty cycle is determined in response to the signal on this pin and the internal current-sense signal. Line-Voltage Detection. The line-voltage detection is used for brownout protection with hysteresis and constant output power limit over universal AC input range. This pin has additional protections that are pull-HIGH latch and pull-LOW auto recovery, depending on the application. No Connection. FSBH0F70A_F116 Startup. For startup, this pin is pulled HIGH to the line input or bulk capacitor via resistors. SenseFET Drain. High-voltage power SenseFET drain connection. SenseFET Drain. High-voltage power SenseFET drain connection. SenseFET Drain. High-voltage power SenseFET drain connection.
4
5 6 7 8
HV Drain Drain Drain
© 2010 Fairchild Semiconductor Corporation FSBH0F70A_F116, FSBH0170/0270/0370_F116 • Rev. 1.0.1
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FSBH0F70A_F116, FSBH0170/0270/0370_F116 — Green Mode Fairchild Power Switch (FPS™)
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
VDRAIN Drain Pin Voltage
(5,6)
Parameter
FSBH0x70/A_F116 FSBH0F70A_F116 FSBH0170_F116 FSBH0270_F116 FSBH0370_F116 FSBH0F70A_F116 FSBH0170_F116 FSBH0270_F116 FSBH0370_F116
Min.
Max.
700 1.5 4.0 8.0 12.0 10 50 140 230 30
Unit
V
IDM
Drain Current Pulsed(7)
A
EAS
Single Pulsed Avalanche Energy(8)
mJ
VDD VFB VIN VHV PD ΘJA ψJT TJ TSTG TL
DC Supply Voltage FB Pin Input Voltage VIN Pin Input Voltage HV Pin Input Voltage Power Dissipation (TA<50°C) Junction-to-Air Thermal Resistance Junction-to-Top Thermal Resistance Operating Junction Temperature Storage Temperature Range Lead Temperature (Wave Soldering or IR, 10 Seconds) FSBH0F70A_F116 Human Body Model (All Pins Except HV pin): JESD22-A114 FSBH0170_F116 FSBH0270_F116 FSBH0370_F116 FSBH0F70A_F116 Charged Device Model (All Pins Except HV pin): JESD22-C101 FSBH0170_F116 FSBH0270_F116 FSBH0370_F116 5.0 5.0 5.0 5.0 2.0 2.0 2.0 1.5
(9)
V V V V W C/W C/W
(10)
-0.3 -0.3
7.0 7.0 700 1.5 80 20
Internally limited -55
C C C
+150 +260
ESD
kV
Notes: 5. All voltage values, except differential voltages, are given with respect to the network ground terminal. 6. Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. 7. Non-repetitive rating: pulse width is limited by maximum junction temperature. 8. L = 51mH, starting TJ = 25C. 9. Measured on the package top surface. 10. Internally Limited of TJ refers to TOTP
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
TA
Parameter
Operating Ambient Temperature
Min.
-40
Max.
+105
Unit
°C
© 2010 Fairchild Semiconductor Corporation FSBH0F70A_F116, FSBH0170/0270/0370_F116 • Rev. 1.0.1
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FSBH0F70A_F116, FSBH0170/0270/0370_F116 — Green Mode Fairchild Power Switch (FPS™)
Electrical Characteristics
VDD=15V and TA=25C unless otherwise specified.
Symbol
Parameter
Drain-Source Breakdown Voltage Zero-Gate-Voltage Drain Current
Condition
Min.
Typ.
Max.
Unit
SenseFET Section BVDSS IDSS VDS=700V, VGS=0V VDS=700V, VGS=0V VDS=560V, VGS=0V, TC=125C FSBH0F70A_F116 RDS(ON) Drain-Source OnState Resistance(12) VGS=10V, ID=0.5A FSBH0170_F116 FSBH0270_F116 FSBH0370_F116 FSBH0F70A_F116 CISS Input Capacitance VGS=0V, VDS=25V, f=1MHz FSBH0170_F116 FSBH0270_F116 FSBH0370_F116 FSBH0F70A_F116 COSS Output Capacitance VGS=0V, VDS=25V, f=1MHz FSBH0170_F116 FSBH0270_F116 FSBH0370_F116 FSBH0F70A_F116 CRSS Reverse Transfer Capacitance VGS=0V, VDS=25V, f=1MHz FSBH0170_F116 FSBH0270_F116 FSBH0370_F116 FSBH0F70A_F116 tD(ON) Turn-On Delay VDS=350V, ID=1.0A FSBH0170_F116 FSBH0270_F116 FSBH0370_F116 FSBH0F70A_F116 tR Rise Time VDS=350V, ID=1.0A FSBH0170_F116 FSBH0270_F116 FSBH0370_F116 FSBH0F70A_F116 tD(OFF) Turn-Off Delay VDS=350V, ID=1.0A FSBH0170_F116 FSBH0270_F116 FSBH0370_F116 FSBH0F70A_F116 tF Fall Time VDS=350V, ID=1.0A FSBH0170_F116 FSBH0270_F116 FSBH0370_F116 14.00 8.80 6.00 4.00 162 250 550 315 18 25 38 47 3.8 10.0 17.0 9.0 9.5 12.0 20.0 11.2 19 4 15 34 33.0 30.0 55.0 28.2 42 10 25 32 700 50 200 19.00 11.00 7.20 4.75 211 325 715 410 24 33 50 61 5.7 15.0 26.0 24.0 29.0 34.0 50.0 33.0 48 18 40 78 76.0 70.0 120.0 67.0 94 30 60 74 ns ns ns ns pF pF pF Ω V μA
Continued on the following page…
© 2010 Fairchild Semiconductor Corporation FSBH0F70A_F116, FSBH0170/0270/0370_F116 • Rev. 1.0.1
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FSBH0F70A_F116, FSBH0170/0270/0370_F116 — Green Mode Fairchild Power Switch (FPS™)
Electrical Characteristics (Continued)
VDD=15V and TA=25C unless otherwise specified.
Symbol
Control Section VDD Section VDD-ON VDD-OFF
Parameter
Condition
Min.
Typ.
Max.
Unit
Start Threshold Voltage Minimum Operating Voltage FSBH0170_F116 FSBH0270_F116 FSBH0370_F116 FSBH0F70A_F116 VDD-ON – 0.16V VDD=15V, VFB=3V VDD=12V, VFB=1.6V VTH-OLP+0.1V VDD-ON – 0.16V
11 7
12 8
13 9 30
V V
IDD-ST
Startup Current
µA
240 3.0 1.5 30 5 27 75
320 3.5 2.5 70 6 28 130
400 4.0 3.5 90 7 29 200 mA mA µA V V µs
IDD-OP IDD-ZDC IDD-OLP VTH-OLP VDD-OVP tD-VDD-OVP HV Section IHV IHV-LC
Operating Supply Current Operating Current for VFB