SG5841SZ-F116 [FAIRCHILD]

Switching Regulator/Controller;
SG5841SZ-F116
型号: SG5841SZ-F116
厂家: FAIRCHILD SEMICONDUCTOR    FAIRCHILD SEMICONDUCTOR
描述:

Switching Regulator/Controller

文件: 总15页 (文件大小:453K)
中文:  中文翻译
下载:  下载PDF数据表文档文件
October 2008  
SG5841J — Highly Integrated Green-Mode PWM  
Controller  
Features  
Description  
The highly integrated SG5841/J series of PWM  
controllers provides several features to enhance the  
performance of flyback converters.  
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Green-Mode PWM Controller  
Low Startup Current : 14µA  
Low Operating Current: 4mA  
To minimize standby power consumption, a proprietary  
green-mode function provides off-time modulation to  
continuously decrease the switching frequency at light-  
load conditions. This green-mode function enables the  
power supply to meet international power conservation  
requirements. To further reduce power consumption,  
SG5841/J is manufactured using the BiCMOS process.  
This allows a low startup current, around 14µA, and an  
operating current of only 4mA. As a result, a large  
startup resistance can be used.  
Programmable PWM Frequency with Hopping  
Peak-Current-Mode Control  
Cycle-by-Cycle Current Limiting  
Synchronized Slope Compensation  
Leading-Edge Blanking (LEB)  
Constant Output Power Limit  
Totem Pole Output with Soft Driving  
VDD Over-Voltage Clamping  
The built-in synchronized slope compensation achieves  
stable peak-current-mode control. The proprietary  
internal sawtooth power-limiter ensures a constant  
output power limit over a wide range of AC input  
Programmable Over-Temperature Protection (OTP)  
Internal Open-Loop Protection  
voltages, from 90VAC to 264VAC  
.
SG5841/J provides many protections. In addition to  
cycle-by-cycle current limiting, the internal open-loop  
protection circuit ensures safety should an open-loop or  
output-short-circuit failure occur. PWM output is  
disabled until VDD drops below the UVLO lower limit,  
then the controller restarts. An external NTC thermistor  
can be applied for over-temperature protection.  
VDD Under-Voltage Lockout (UVLO)  
GATE Output Maximum Voltage Clamp:18V  
Applications  
General-purpose, switch-mode, power supplies and  
flyback power converters, including:  
SG5841/J is available in an 8-pin DIP or SOP package.  
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Power Adapters  
Open-Frame SMPS  
Ordering Information  
Ambient Operating Frequency  
Temperature Range Hopping  
Eco  
Status  
Part Number  
Package  
SG5841JSZ  
SG5841JSY  
SG5841JDZ  
SG5841SZ  
SG5841SY  
SG5841DZ  
-20 to +85°C  
-20 to +85°C  
-20 to +85°C  
-20 to +85°C  
-20 to +85°C  
-20 to +85°C  
Yes  
Yes  
Yes  
No  
RoHS  
Green  
RoHS  
RoHS  
Green  
RoHS  
8-Pin Small Outline Package (SOP)  
8-Pin Small Outline Package (SOP)  
8-Pin Dual Inline Package (DIP)  
8-Pin Small Outline Package (SOP)  
8-Pin Small Outline Package (SOP)  
8-Pin Dual Inline Package (DIP)  
No  
No  
For Fairchild’s definition of “green” Eco Status, please visit: http://www.fairchildsemi.com/company/green/rohs_green.html.  
© 2006 Fairchild Semiconductor Corporation  
SG5841J • Rev. 1.3.4  
www.fairchildsemi.com  
Typical Application  
Figure 1. Application Diagram  
Block Diagram  
Figure 2. Block Diagram  
© 2006 Fairchild Semiconductor Corporation  
SG5841J • Rev. 1.3.4  
www.fairchildsemi.com  
2
Marking Information  
H: J = with Frequency Hopping  
Null = without Frequency Hopping  
T: D = DIP, S = SOP  
SG5841HTP  
P:Z = Lead Free  
XXXX XXXXYWW  
Null = regular package  
XXXXXXXX : Wafer Lot  
: Week  
Y: Year; WW  
marking for SG5841JSZ (pb-free)  
marking for SG5841JDZ (pb-free)  
marking for SG5841SZ (pb-free)  
marking for SG5841DZ (pb-free)  
V: Assembly Location  
F: Fairchild Logo  
Z:Plant Code  
X:1 Digit Year Code  
ZXYTT  
5841/J  
TPM  
Y:1 Digit Week Code  
TT:2 Digit Die Run Code  
T: Package Type (D:DIP, S:SOP)  
P:Y = Green Package  
M:Manufacturing Flow Code  
marking for SG5841JSY (green-compound)  
marking for SG5841SY (green-compound)  
Figure 3. Top Mark  
© 2006 Fairchild Semiconductor Corporation  
SG5841J • Rev. 1.3.4  
www.fairchildsemi.com  
3
Pin Configuration  
GND  
FB  
GATE  
VDD  
VIN  
RI  
SENSE  
RT  
Figure 4. Pin Configuration  
Pin Definitions  
Pin # Name Function  
Description  
1
GND  
Ground  
Ground.  
The signal from the external compensation circuit is fed into this pin. The PWM  
duty cycle is determined in response to the signal from this pin and the current-  
sense signal from pin 6. If FB voltage exceeds the threshold, the internal  
protection circuit disables PWM output after a predetermined delay time.  
2
FB  
Feedback  
For startup, this pin is pulled HIGH to the rectified line input via a resistor. Since  
3
4
VIN  
RI  
Startup Input the startup current requirement is very small, a large startup resistance is used to  
minimize power loss.  
A resistor connected from the RI to GND provides a constant current source. This  
determines the center PWM frequency. Increasing the resistance reduces PWM  
Setting  
Reference  
frequency. Using a 26Kresistor results in a 65KHz center PWM frequency.  
For over-temperature protection. An external NTC thermistor is connected from  
Temperature this pin to the GND pin. The impedance of the NTC decreases at high  
5
RT  
Detection  
temperatures. Once the voltage of the RT pin drops below a fixed limit, PWM  
output is disabled.  
Current  
Sense  
Current sense. The sensed voltage is used for peak-current-mode control and  
cycle-by-cycle current limiting.  
6
7
8
SENSE  
VDD  
Power  
Supply  
Power supply. If VDD exceeds a threshold, the internal protection circuit disables  
PWM output.  
The totem-pole output driver for the power MOSFET, which is internally clamped  
below 18V.  
GATE Driver Output  
© 2006 Fairchild Semiconductor Corporation  
SG5841J • Rev. 1.3.4  
www.fairchildsemi.com  
4
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. All voltage values, except differential voltages, are  
given with respect to GND pin.  
Symbol  
VDD  
Parameter  
Min.  
Max.  
30  
Unit  
V
Supply Voltage  
Input Terminal  
VIN  
30  
V
VFB  
Input Voltage to FB Pin  
Input Voltage to SENSE Pin  
Input Voltage to RT Pin  
Input Voltage to RI Pin  
-0.3  
-0.3  
-0.3  
-0.3  
7.0  
V
VSENSE  
VRT  
7.0  
V
7.0  
V
VRI  
7.0  
V
DIP  
800  
400  
82.5  
141  
59.7  
80.8  
+125  
+150  
PD  
Power Dissipation (TA < 50°C )  
mW  
°C/W  
°C/W  
SOP  
DIP  
ΘJA  
ΘJC  
Thermal Resistance (Junction-to-Air)  
Thermal Resistance (Junction-to-Case)  
SOP  
DIP  
SOP  
TJ  
Operating Junction Temperature  
Storage Temperature Range  
-40  
-55  
°C  
°C  
TSTG  
Lead Temperature (Wave Soldering or Infrared,  
10 Seconds)  
TL  
260  
°C  
Human Body Model, JESD22-A114  
Charged Device Model, JESD22-C101  
3
kV  
V
ESD  
250  
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  
Min.  
Max.  
Unit  
TA  
Operating Ambient Temperatures  
-20  
+85  
°C  
© 2006 Fairchild Semiconductor Corporation  
SG5841J • Rev. 1.3.4  
www.fairchildsemi.com  
5
Electrical Characteristics  
VDD = 15V, TA = 25°C, unless otherwise noted.  
Symbol  
Parameter  
Conditions  
Min.  
Typ.  
Max.  
Units  
VDD Section  
VDD-OP  
VDD-ON  
Continuously Operating Voltage  
Start Threshold Voltage  
24.7  
17  
V
V
15  
9
16  
10  
14  
VDD-OFF Minimum Operating Voltage  
11  
V
IDD-ST  
IDD-OP  
Startup Current  
VDD=VDD-ON–0.16V  
30  
µA  
VDD=15V, RI=26K,  
Operating Supply Current  
4
5
mA  
V
GATE=OPEN  
VDD-CLAMP VDD Over-Voltage-Clamping Level  
28  
50  
29  
VDD Over-Voltage-Clamping  
tD-VDDCLAMP  
RI=26KΩ  
100  
200  
µs  
Debounce Time  
RI Section  
RINOR  
RIMAX  
RIMIN  
RI Operating Range  
15.5  
36.0  
KΩ  
KΩ  
KΩ  
Maximum RI Value for Protection  
Minimum RI Value for Protection  
230  
10  
Oscillator Section  
Center Frequency RI=26KΩ  
62  
65  
68  
Normal  
fOSC  
PWM  
Frequency  
KHz  
RI=26KΩ  
(SG5841J only)  
Hopping Range  
±3.7  
±4.2  
±4.7  
RI=26KΩ  
(SG5841J only)  
tHOP  
fOSC-G  
fDV  
Hopping Period  
3.9  
18  
4.4  
22  
4.9  
25  
5
ms  
KHz  
%
Green-Mode Frequency  
RI=26KΩ  
Frequency Variation vs. VDD  
Deviation  
VDD=11.5V to 24.7V  
Frequency Variation vs.  
Temperature Deviation  
5
fDT  
%
TA=-20 to +85°C  
Feedback Input Section  
FB Input to Current Comparator  
Attenuation  
AV  
1/3.75  
1/3.20  
1/2.75  
7
V/V  
ZFB  
Input Impedance  
4
5
KΩ  
V
VFB-OPEN FB Output High Voltage  
FB pin open  
6
VFB-OLP  
FB Open-Loop Trigger Level  
4.2  
4.5  
4.8  
32  
V
Delay Time of FB Pin Open-Loop  
Protection  
tD-OLP  
RI=26KΩ  
26  
29  
ms  
VFB-N  
VFB-G  
Green-Mode Entry FB Voltage  
Green-Mode Ending FB Voltage  
RI=26KΩ  
RI=26KΩ  
1.9  
2.1  
2.3  
V
V
VFB-N-0.5  
f
OSC  
-GREEN  
OSC  
f
Figure 5. PWM Frequency  
© 2006 Fairchild Semiconductor Corporation  
SG5841J • Rev. 1.3.4  
www.fairchildsemi.com  
6
Electrical Characteristics (Continued)  
VDD = 15V, TA = 25°C, unless otherwise noted.  
Symbol  
Parameter  
Conditions  
Min.  
Typ.  
Max.  
Unit  
Current-Sense Section  
ZSENSE Input Impedance  
12  
KΩ  
Current Limit Flatten  
VSTHFL  
0.85  
0.90  
0.95  
V
Threshold Voltage  
Current Limit Valley  
VSTHVA  
VSTHFL–VSTHVA  
0.22  
150  
270  
V
Threshold Voltage  
Propagation Delay to  
GATE Output  
tPD  
RI=26KΩ  
RI=26KΩ  
200  
350  
ns  
ns  
Leading-Edge Blanking  
Time  
tLEB  
200  
60  
GATE Section  
DCYMAX Maximum Duty Cycle  
VGATE-L Output Voltage Low  
VGATE-H Output Voltage High  
65  
70  
%
V
VDD=15V, IO=50mA  
VDD=12.5V, IO=50mA  
VDD=15V, CL=1nF  
VDD=15V, CL=1nF  
VDD=15V, GATE=6V  
1.5  
7.5  
150  
30  
V
tr  
tf  
Rising Time  
250  
50  
350  
90  
ns  
ns  
mA  
Falling Time  
IO  
Peak Output Current  
230  
VGATE- Gate Output Clamping  
VDD=24.7V  
18  
19  
V
Voltage  
CLAMP  
RT Section  
IRT  
Output Current of RT Pin  
RI=26KΩ  
92  
100  
0.620  
108  
µA  
V
Trigger Voltage for Over-  
Temperature Protection  
VRTTH  
0.585  
0.655  
VRT-RLS OTP Release Voltage  
VRTTH +0.03  
100  
V
Over-Temperature  
tD-OTP  
RI=26KΩ  
60  
140  
µs  
Debounce  
© 2006 Fairchild Semiconductor Corporation  
SG5841J • Rev. 1.3.4  
www.fairchildsemi.com  
7
Typical Performance Characteristics  
30  
26  
22  
18  
14  
10  
5.0  
4.5  
4.0  
3.5  
3.0  
2.5  
-40 -25 -10  
5
20  
35  
50  
65  
80  
95 110 125  
-40 -25 -10  
5
20  
35  
50  
65  
80  
95 110 125  
Temperature (°C)  
Temperature (°C)  
Figure 6. Startup Current (IDD-ST) vs. Temperature  
Figure 7. Operating Supply Current (IDD-OP  
)
vs. Temperature  
15  
12  
9
17.0  
16.5  
16.0  
15.5  
15.0  
6
3
0
11  
13  
15  
17  
19  
21  
23  
25  
27  
29  
-40 -25 -10  
5
20  
35  
50  
65  
80  
95 110 125  
Temperature (°C)  
V
Voltage (V)  
DD  
Figure 8. Operating Current (IDD-OP  
)
Figure 9. Start Threshold Voltage (VDD-ON  
)
vs. VDD Voltage  
vs. Temperature  
11.0  
10.5  
10.0  
9.5  
68  
67  
66  
65  
64  
63  
62  
9.0  
-40 -25 -10  
5
20  
35  
50  
65  
80  
95 110 125  
-40 -25 -10  
5
20  
35  
50  
65  
80  
95 110 125  
Temperature (°C)  
Temperature (°C)  
Figure 10. Minimum Operating Voltage (VDD-ON  
)
Figure 11. PWM Frequency (fOSC  
)
vs. Temperature  
vs. Temperature  
© 2006 Fairchild Semiconductor Corporation  
SG5841J • Rev. 1.3.4  
www.fairchildsemi.com  
8
Typical Performance Characteristics (Continued)  
70  
68  
66  
64  
62  
60  
-40 -25 -10  
5
20  
35  
50  
65  
80  
95  
110 125  
Temperature (°C)  
Figure 12. Maximum Duty Cycle (DCYMAX) vs. Temperature  
0.66  
0.65  
0.64  
0.63  
0.62  
0.61  
0.60  
0.59  
0.58  
-40 -25 -10  
5
20  
35  
50  
65  
80  
95  
110 125  
Temperature (°C)  
Figure 13. Trigger Voltage for Over-Temperature Protection VRTTH vs. Temperature  
108  
104  
100  
96  
92  
-40 -25 -10  
5
20  
35  
50  
65  
80  
95 110 125  
Temperature (°C)  
Figure 14. Output Current of RT Pin (IRT) vs. Temperature  
© 2006 Fairchild Semiconductor Corporation  
SG5841J • Rev. 1.3.4  
www.fairchildsemi.com  
9
Functional Description  
Startup Current  
Leading-Edge Blanking (LEB)  
Typical startup current is only 14µA, which allows a  
high-resistance and low-wattage startup resistor to  
minimize power loss. For an AC/DC adapter with  
universal input range, a 1.5M, 0.25W startup resistor  
and a 10µF/25V VDD hold-up capacitor are enough for  
this application.  
Each time the power MOSFET is switched on, a turn-on  
spike occurs at the sense-resistor. To avoid premature  
termination of the switching pulse, a leading-edge  
blanking time is built in. During this blanking period, the  
current-limit comparator is disabled and cannot switch  
off the gate drive.  
Under-Voltage Lockout (UVLO)  
Operating Current  
The turn-on and turn-off thresholds are fixed internally  
at 16V and 10V. During startup, the hold-up capacitor  
must be charged to 16V through the startup resistor to  
enable the IC. The hold-up capacitor continues to  
supply VDD before the energy can be delivered from  
auxiliary winding of the main transformer. VDD must not  
drop below 10V during this startup process. This UVLO  
hysteresis window ensures that hold-up capacitor is  
adequate to supply VDD during startup.  
Operating current is around 4mA. The low operating  
current enables better efficiency and reduces the  
requirement of VDD hold-up capacitance.  
Green-Mode Operation  
The proprietary green-mode function provides off-time  
modulation to continuously decrease the PWM  
frequency under light-load conditions. To avoid acoustic  
noise problems, the minimum PWM frequency is set  
above 22KHz. Green mode dramatically reduces power  
consumption under light-load and zero-load conditions.  
Power supplies using a SG5841/J controller can meet  
restrictive international regulations regarding standby  
power consumption.  
Gate Output / Soft Driving  
The SG5841/J BiCMOS output stage is a fast totem-  
pole gate driver. Cross conduction has been avoided to  
minimize heat dissipation, increase efficiency, and  
enhance reliability. The output driver is clamped by an  
internal 18V Zener diode to protect power MOSFET  
transistors against undesirable gate over-voltage. A soft  
driving waveform is implemented to minimize EMI.  
Oscillator Operation  
A resistor connected from the RI pin to the GND pin  
generates a constant current source for the SG5841/J  
controller. This current is used to determine the center  
PWM frequency. Increasing the resistance reduces  
PWM frequency. Using a 26Kresistor, RI, results in a  
corresponding 65KHz PWM frequency. The relationship  
between RI and the switching frequency is:  
Built-in Slope Compensation  
The sensed voltage across the current-sense resistor is  
used for peak-current-mode control and pulse-by-pulse  
current limiting. Built-in slope compensation improves  
stability or prevents sub-harmonic oscillation. SG5841/J  
inserts a synchronized, positive-going ramp at every  
switching cycle.  
1690  
fPWM  
=
(KHz)  
(1)  
R (KΩ)  
I
Constant Output Power Limit  
When the SENSE voltage across the sense resistor,  
RS, reaches the threshold voltage, around 0.85V, the  
output GATE drive is turned off after delay, tPD. This  
The range of the PWM oscillation frequency is designed  
as 47KHz ~ 109KHz.  
SG5841J also integrates a frequency hopping function  
internally. The frequency variation ranges from around  
62KHz to 68KHz for a center frequency of 65KHz. The  
frequency-hopping function helps reduce EMI emission  
of a power supply with minimum line filters.  
delay introduces additional current, proportional to tPD  
VIN / LP. The delay is nearly constant, regardless of the  
input voltage VIN. Higher input voltage results in larger  
additional current and the output power limit is higher  
than under low-input line voltage. To compensate this  
variation for a wide AC input range, a sawtooth power-  
limiter (saw limiter) is designed to solve the unequal  
power-limit problem. The saw limiter is designed as a  
positive ramp signal (Vlimit_ramp) and fed to the inverting  
input of the OCP comparator. This results in a lower  
current limit at high-line inputs than at low-line inputs.  
Current Sensing / PWM Current Limiting  
Peak-current-mode control is utilized in to regulate  
output voltage and provide pulse-by-pulse current  
limiting. The switch current is detected by a sense  
resistor into the SENSE pin. The PWM duty cycle is  
determined by this current-sense signal and the  
feedback voltage. When the voltage on the SENSE pin  
reaches around VCOMP = (VFB–1.0)/3.2, a switch cycle is  
terminated immediately. VCOMP is internally clamped to a  
variable voltage around 0.85V for output power limit.  
VDD Over-Voltage Clamping  
VDD over-voltage clamping prevents damage due to  
abnormal conditions. If VDD voltage is over the VDD over-  
voltage clamping voltage (VDD-CLAMP) and lasts for tD-  
VDDCLAMP, the PWM pulses are disabled until the VDD  
drops below the VDD over-voltage clamping voltage.  
© 2006 Fairchild Semiconductor Corporation  
SG5841J • Rev. 1.3.4  
www.fairchildsemi.com  
10  
Thermal Protection  
When VDD goes below the turn-off threshold (e.g. 10V)  
the controller totally shuts down. VDD is charged up to  
the turn-on threshold voltage of 16V through the startup  
resistor until PWM output is restarted. This protection  
remains activated as long as the overloading condition  
persists. This prevents the power supply from  
overheating due to overloading conditions.  
An NTC thermistor RNTC in series with a resistor RA can  
be connected from the RT pin to ground. A constant  
current IRT is output from pin RT. The voltage on the RT  
pin can be expressed as VRT = IRT × (RNTC + RA), in  
which IRT = 2 x (1.3V / RI). At high ambient temperature,  
RNTC is smaller, such that VRT decreases. When VRT is  
less than 0.62V, the PWM is completely turned off.  
Noise Immunity  
Limited Power Control  
Noise on the current-sense or control signal may cause  
significant pulse-width jitter, particularly in the  
continuous-conduction mode. Slope compensation  
helps alleviate this problem. Good placement and  
layout practices should be followed. Avoiding long PCB  
traces and component leads, locating compensation  
and filter components near SG5841/J, and increasing  
power MOS gate resistance improve performance.  
The FB voltage increases every time the output of the  
power supply is shorted or overloaded. If the FB voltage  
remains higher than a built-in threshold for longer than  
t
D-OLP, PWM output is turned off. As PWM output is  
turned off, the supply voltage VDD begins decreasing.  
tD-OLP (ms) = 1.115 × R (KΩ)  
(2)  
I
© 2006 Fairchild Semiconductor Corporation  
SG5841J • Rev. 1.3.4  
www.fairchildsemi.com  
11  
Reference Circuit  
Q1  
F1  
BD1  
R1  
R2  
CN1  
1
3
1
2
3
L3  
L1  
L2  
2
1
2
C1  
C2  
T1  
4
1
Vo+  
D1  
VZ1  
TR1  
R5  
R7  
R3  
C3  
D2  
C4  
D3  
+
C7  
+
+C8  
C6  
R4  
C5  
R6  
D4  
Q2  
U1  
GND GATE  
1
8
7
6
5
1
R12  
2
3
FB  
VDD  
R16  
VIN SENSE  
4
RI  
RT  
R11  
R9  
R10  
SG5841/J  
C9  
+
C11  
R8  
THER2  
U2  
C12  
R13  
R
C10  
R14  
U3  
VO+  
R15  
Figure 15. Reference Circuit  
Reference  
BOM  
Reference  
BD1  
Component  
Component  
BD 4A/600V  
Q2  
MOS 7A/600V  
C1  
C2  
C3  
C4  
C5  
C6  
C7  
C8  
C9  
C10  
C11  
C12  
D1  
D2  
D3  
D4  
F1  
XC 0.68µF/300V  
XC 0.1µF/300V  
CC 0.01µF/500V  
EC 120µ/400V  
YC 222p/250V  
CC 1000pF/100V  
EC 1000µF/25V  
EC 470µF/25V  
EC 10µF/50V  
R1, R2  
R3  
R 1MΩ 1/4W  
R 100KW 1/2W  
R 47Ω 1/4W  
R 750KΩ 1/4W  
R 2KΩ 1/8W  
R 0.3Ω 2W  
R4  
R5, R7  
R6  
R8  
R9  
R 33KΩ 1/8W  
R10  
R11  
R12  
R13  
R14  
R15  
R16  
THER2  
T1  
R 4.7KΩ 1/8W 1%  
R 470Ω 1/8W  
R 0Ω 1/8W  
CC 222pF/50V  
CC 470pF/50V  
CC 102pF/50V (Option)  
LED  
R 4.7KΩ 1/8W  
R 154KΩ 1/8W  
R 39KΩ 1/8W  
R 100Ω 1/8W  
Thermistor TTC104  
Transformer (600µH-PQ2620)  
IC SG5841/J  
Diode BYV95C  
TVS P6KE16A  
Diode FR103  
FUSE 4A/250V  
Choke (900µH)  
Choke (10mH)  
Inductor (2µH)  
Diode 20A/100V  
U1  
U2  
IC PC817  
L1  
U3  
IC TL431  
L2  
VZ1  
VZ 9G  
L3  
Q1  
© 2006 Fairchild Semiconductor Corporation  
SG5841J • Rev. 1.3.4  
www.fairchildsemi.com  
12  
Physical Dimensions  
5.00  
4.80  
A
0.65  
3.81  
8
5
B
1.75  
6.20  
5.80  
4.00  
3.80  
5.60  
1
4
PIN ONE  
INDICATOR  
1.27  
1.27  
(0.33)  
M
0.25  
C B A  
LAND PATTERN RECOMMENDATION  
SEE DETAIL A  
0.25  
0.10  
0.25  
0.19  
C
1.75 MAX  
0.10  
C
0.51  
0.33  
OPTION A - BEVEL EDGE  
0.50  
0.25  
x 45°  
R0.10  
R0.10  
GAGE PLANE  
OPTION B - NO BEVEL EDGE  
0.36  
NOTES: UNLESS OTHERWISE SPECIFIED  
8°  
0°  
0.90  
A) THIS PACKAGE CONFORMS TO JEDEC  
MS-012, VARIATION AA, ISSUE C,  
B) ALL DIMENSIONS ARE IN MILLIMETERS.  
C) DIMENSIONS DO NOT INCLUDE MOLD  
FLASH OR BURRS.  
SEATING PLANE  
(1.04)  
0.406  
D) LANDPATTERN STANDARD: SOIC127P600X175-8M.  
E) DRAWING FILENAME: M08AREV13  
DETAIL A  
SCALE: 2:1  
Figure 16. 8-Pin Small Outline Package (SOP)  
Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner  
without notice. Please note the revision and/or date on the drawing and contact a Fairchild Semiconductor representative to verify  
or obtain the most recent revision. Package specifications do not expand the terms of Fairchild’s worldwide terms and conditions, specifically  
the warranty therein, which covers Fairchild products.  
Always visit Fairchild Semiconductor’s online packaging area for the most recent package drawings:  
http://www.fairchildsemi.com/packaging/.  
© 2006 Fairchild Semiconductor Corporation  
SG5841J • Rev. 1.3.4  
www.fairchildsemi.com  
13  
Physical Dimensions (Continued)  
9.83  
9.00  
6.67  
6.096  
8.255  
7.61  
3.683  
3.20  
7.62  
5.08 MAX  
0.33 MIN  
3.60  
3.00  
(0.56)  
2.54  
0.356  
0.20  
0.56  
0.355  
9.957  
7.87  
1.65  
1.27  
7.62  
NOTES: UNLESS OTHERWISE SPECIFIED  
A) THIS PACKAGE CONFORMS TO  
JEDEC MS-001 VARIATION BA  
B) ALL DIMENSIONS ARE IN MILLIMETERS.  
C) DIMENSIONS ARE EXCLUSIVE OF BURRS,  
MOLD FLASH, AND TIE BAR EXTRUSIONS.  
D) DIMENSIONS AND TOLERANC  
ASME Y14.5M-1994  
ES PER  
E) DRAWING FILENAME AND REVSION: MKT-N08FREV2.  
Figure 17. 8-Pin Dual Inline Package (DIP)  
Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner  
without notice. Please note the revision and/or date on the drawing and contact a Fairchild Semiconductor representative to verify  
or obtain the most recent revision. Package specifications do not expand the terms of Fairchild’s worldwide terms and conditions, specifically  
the warranty therein, which covers Fairchild products.  
Always visit Fairchild Semiconductor’s online packaging area for the most recent package drawings:  
http://www.fairchildsemi.com/packaging/.  
© 2006 Fairchild Semiconductor Corporation  
SG5841J • Rev. 1.3.4  
www.fairchildsemi.com  
14  
© 2006 Fairchild Semiconductor Corporation  
SG5841J • Rev. 1.3.4  
www.fairchildsemi.com  
15  

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