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SD6109
VOLTAGE MODE PWM POWER SUPPLY WITH BUILT-IN SUPERVISOR, PROTECTION AND REGULATION FOR PCs
DESCRIPTION
The SD6109 is a power management IC for computers. It integrates various monitoring functions and protections, such as AC fail detection, over power protection, negative voltage protection, over/under voltage protection and provides power down signal for PG. Built-in high precision oscillator provides accurate protection and delay time for monitoring. And internal regulators TL431 are used for stable output 3.3V and 5V, with few peripheral components. Built-in soft-start decreases stress of transformer against saturation. SD6109 used for pull-push or half-bridge power system with high efficiency and stability.
DIP-20-300-2.54
FEATURES
* Advanced Bi-CMOS process. *4KV HBM ESD protection * Bipolar structure adopted in Shunt regulators TL431, with high reliability * Over voltage protection for 3.3V/5V/12V * Under voltage protection for 3.3V/5V/12V * Over power protection * Short circuit protection * AC-input under voltage protection * PG Circuit * PSON for remote control * Delay time for PSON or PG signals * Two bypass regulators for 3.3V and 5V- voltage stability * Soft start and maximum 93% duty cycle
APPLICATIONS
* Switching mode power supply for computers.
ORDERING INFORMATION
Part No. SD6109 Package DIP-20-300-2.54 Marking SD6109
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SD6109
BLOCK DIAGRAM
ABSOLUTE MAXIMUM RATING
Characteristics Supply Voltage(pin 20) Regulator Output At Pins FB1, FB2 Pins Output Current At Pins PG, FB1, FB2 Pins Power Dissipation(Tamb=25C) Power Dissipation(Tamb=90C) Thermal Resistance, Junction-To-Air Operating Temperature Range Storage Temperature Range Symbol VCC VFB IOUT PD PD RJA Tamb Tstg Rating 12 16 30 1.5 0.5 82.5 -30 ~ +125 -55~+155 Unit V V mA W W C/W C C
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SD6109
ELECTRICAL CHARACTERISTICS (Unless otherwise stated, VCC=5V, Tamb=25C)
Characteristics Supply Voltage Supply Current Over-Voltage Protection 3.3V Over-Voltage Protection 5V Over-Voltage Protection 12V Under-Voltage Protection 3.3V Under-Voltage Protection 5V Under-Voltage Protection 12V Under-Voltage Sense 3.3V For PG Low Under-Voltage Sense 5V For PG Low Under-Voltage Sense 12V For PG Low Over-Power Protection. Negative Voltage Protection: Voltage Level Negative Voltage Protection: Source Current Timing For Over-Voltage Protection Timing For Under-Voltage Protection Timing For Under-Voltage Sense for PG Low Timing for Over-Power-Protection Timing for Negative Voltage Protection Bypass Regulator Reference Voltage Line Regulation Symbol VCC ICC VOVP1 VOVP2 VOVP3 VUVP1 VUVP2 VUVP3 VUVS1 VUVS2 VUVS3 VOPPS VNVP INVP tOVP tUVP tUVS tOPP tNVP VREF Test condition All functions are normal. PG High VUVAC = 1.5V RI = 75K RI = 75K RI = 75K RI = 75K RI = 75K RI = 75K Min. 4.5 -3.9 5.8 13.9 2.0 3.0 6.0 2.5 4.0 9.4 2.02 1.9 50 0.5 0.9 0.5 4.0 4.0 10 200 0.65 Typ. 5.0 5 4.1 6.1 14.5 2.6 3.6 7.2 2.8 4.3 10.1 2.4 2.05 61 0.7 2.4 1.2 7.0 7.0 2.5 1 300 0.7 1 300 Max. 7.0 10 4.3 6.5 14.9 2.8 3.9 8.0 3.0 4.5 10.4 2.66 2.2 72 1.3 3.8 1.9 10.0 10.0 2.525 400 0.75 0.5 1 Unit V mA V V V V V V V V V V V A ms ms ms ms ms V MV/V mA ms V us ns V A
IFB = 0.5mA, Tamb = 25C 2.475
REGLI-FB 4 < VFB < 16V IOUT-FB tPG VUVAC tR tF VOL2 ION2 VFB > 2V RI = 75K CL = 100pF CL = 100pF IPG = 5mA VPG = 5V
(FB1,VREF1, Output Sinking Current FB2,VREF2) Capability PG Delay UVAC Voltage Sense for PG PG Output Rising Time PG PG Falling Time PG Output Saturation Level PG Leakage Current Collector
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SD6109
Characteristics PSON Input Threshold Level Remote Input Driving Remote Control Current Timing PSON to On/Off On Off (PS-off) Timing PG low to Power Off Reference Voltage Input Bias Current Error Amplifier Open-Loop Voltage Gain Unity Gain Bandwidth Power Supply Rejection Ratio Oscillator Soft-Start PWM Frequency Charge Current Duty Cycle Output Voltage Low PWM Output Output Voltage High Output Impedance of VOH tPSON(ON) RI = 75k tPSON(OFF) tPSOFF V2.5 IIB AVOL BW PSRR FOSC ISS DC VOL VOH RO RI = 75k RI = 75k Io = 5mA V12 = 12V RI = 75k 20 10 2 2.45 50 0.3 50 60 4.0 85 4 1.5 40 20 4.8 2.5 60 1 65 5.7 50 30 6.5 2.55 0.1 70 7.0 93 0.5 3.3 ms V A dB MHz dB kHz A % V V k ms Symbol VPSON IPSON Test condition Min. 1 Typ. 1.4 Max. 2.0 0.5 Unit V mA
PIN CONFIGURATIONS
PSON V33 V5 OPP UVAC NVP V12 OP2 OP1 1 2 3 4 20 VCC 19 RI 18 SS 17 IN
SD6109
5 6 7 8 9
16 COMP 15 GND 14 FB1 13 VREF1 12 VREF2 11 FB2
PG 10
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
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SD6109
PIN DESCRIPTIONS
Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Pin Name PSON V33 V5 OPP UVAC NVP V12 OP2 OP1 PG FB2 VREF2 VREF1 FB1 GND COMP IN SS RI VCC I/O I I I I I I I O O O O I I O I/O I I/O I Description Remote switch input for CPU or controller. Control the PWM Output. 3.3V over-voltage/under-voltage control sense input. 5V over-voltage/under-voltage control sense input. Over-power sense input. AC fail detection. The protection input for negative output. 12V over-voltage/under-voltage control sense input. The totem-pole output drivers of push-pull PWM. The maximum duty cycle (OP1 or OP2) is 46%. The totem-pole output drivers of push-pull PWM. PG logic output, 0 or 1 (open-collector). PG=1 means that the power is good for operation. Output of second converter regulation loop. Reference comparison input for second converter regulation loop. 2.5V. Reference comparison input for first converter regulation loop. 2.5V. Output of first converter regulation loop. Ground. Error amplifier output and the input of the PWM comparator. The negative input of error amplifier. The positive input of error amplifier is connected to 2.5V reference voltage. The soft-start. It is settable through external capacitor. The current source output at this pin is 5.7uA and the voltage is clamped at 2.5V. Connected to external resistor for the reference setting. Supply voltage. It is connected to 5V-standby.
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SD6109
FUNCTION DESCRIPTION
The SD6109 is a power management IC for computers. It integrates various monitoring functions and protections, such as AC fail detection, over power protection, negative voltage protection, over/under voltage protection and provides power down signal for PG. Built-in high precision oscillator provides accurate protection and delay time for monitoring. And internal regulators TL431 are used for stable output 3.3V and 5V, with few peripheral components. Built-in soft-start decreases stress of transformer against saturation. SD6109 used for pull-push or half-bridge power system with high efficiency and stability. 1. TIMING DIAGRAM
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SD6109
2. Remote Switch Control (PSON)
The PC generates the remote switch control signal which is connected to PSON. When the control signal is low, PC power is on. And when the control signal is high, PC power is off.. 3. AC Fails Detection (UVAC)
The AC line voltage is coupled from the primary side to the secondary side through the main transformer, and UVAC is connected to the secondary side by a resistor. When UVAC voltage drops below 0.7V and maintains this situation over 200us, the PG signal will be pulled low , and it indicates that the AC line is power-down. The voltage amplitude of the PWM switching signal from the secondary side is proportional to the AC line voltage. Adjusting the ratio of the voltage divider can set the threshold for the power-down.
4.
Over Power Protection (OPP)
The over power protection is designed to detect over power and short circuit.. When the voltage of OPP is higher than 2.4V and maintain this situation over 7msec, PG will be pulled low and the power outputs will be locked
5.
Negative Voltage Protection (NVP)
The negative voltage protection is designed to provide under voltage protection for negative voltage output. Overload and short circuit can cause under voltage of negative voltage output.. When the voltage of NVP is higher than 2.1V and this situation exists for longer than 7msec, the power outputs will be off and be locked. Adjusting the resistor will set the threshold for locking the power outputs off. The threshold is determined by: VNVP=INVP X (R1+R2)+V-12V VNVP=INVP X R1+V-5V-0.7V
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SD6109
TYPICAL APPLICATION CIRCUIT
Note: The circuit and parameters are for reference only, please set the parameters of the real application circuit based on the practical test.
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SD6109
F1 5A/ 630V RTHI SD15
ZNR2 ZNR1 TVR07241KS TVR07241KS C1 C2 680 F/200V 680 F/200V
R25 R24 4.7 1/2W 4.7 1/2W
D11 FR152 SD3A F16C20C FD2A F16C20C L L3 SD1A SBL3040PT SD2A SBL3040PT D9 FR152 SD2B SBL3040PT D10 FR152 FD2B F16C20C FD3B F16C20C D12 FR152
3 2 1 VZ1 471 CX1 471nF/275AC 9mH
C3 105K/250V C4 222Z/1KV D5 FR107
BD1 LF1 CX2 222nF/275AC (SA7257) KBU606
R3 47 5W
R2 R1 330K/1/2W 330K/1/2W
AC
T1 ATEER35T1
L10P
Uvac
L5 1.6#5.5TS
PFC
C19 L6 2200 F/16V 1.6#5.5TS
C20 2200 F/16V
R26 150 2W
+12V
3P
C5 1 F/50V
R28 100 1/2W C21 680 F/16V
C15 103Z/200V
-5V
C22 680 F/16V
C16 103Z/200V
R29 270 1W
D16 FR152
T2 ATEE119 T8P2T2
D3 FR152 39 1/2W C6 R8 1 F/50V 22 1/2W R11 4.7 2W D2 FR107 D4 FR152 R9 39 1/2W Q2 2SC3320 Q1 2SC3320 R6
R5 2.2 1/2W
D1 FR107
D14 IN4148
L4
C7 103V/1KV
SD1B SBL3040PT
C23 2200 F/10V
D13 C24 2200 F/10V FR152
R30 1 2W
R39 15 2W
-12V
LT
R10 100K 1/2W D26 FR152
L7 1.6#5TS
+3.3V
Q5 KSA928A R12 1.5M 1/4W
R31 4.7 1/2W
R32 100 1/8W
C27 105Z/50V
C26 103Z/100V
R36 1.8K 1/8W
R37 620 1/8W
R38 10 1/8W
D21 FR152
Q7 2SC945 5VSB R60 10 1/2W VR2 1K 1/10W R57 2K 1/8W
C34 104Z/50V C33 104Z/50V
R55 12K 1/8W R54 12K 1/8W R53 6.25K 1/8W
4 3 2 1
FB VCC PGND SGND
NC D D D
5 6 7 8
C9 22 3K/50V
Q6 2SC945 D22 FR152 R41 1.5K 1/4W
D18 FR152 R56 15.8K 1/8W
R33 22 1/8W
+3.3VS
C25 0.47 F/50V
+12V
SD484
U1 R18 47 1/8W KPC817 D17 C14 T3 FR152 47 F/50V FD5 SB302
R34 1K 1/8W
R35 51 1/8W
C28 104Z/50V
Fb1
Vref1
D24 IN4148 C36 473/50V
C10 104K/50V C32 103Z/100V
D7 IN4148 C8 104K/50V
R16 1K 1/8W
FD1 SB302 ATEEL19T7P7
R19 510 1/8W
C12 680 F/16V C11 1000 F/10V
R23 100 1/2W
+5VSB
C35 473/50V
Vref1
R54 24K 1/8W
Vref2
Fb1
Fb2
R59 75K 1/8W
R22 10K 1/8W C13 104K/ 50V Fb2
R21 24K 1/8W
Vref2
RI
IN
UVAC COMP
GND
VCC
SS
FB1
VREF1
VREF2
DETAIL APPLICATION CIRCUIT
IC1
POSN
SD6109
OPP NVP V33 V12 V5
OP2
OP1
R42 330 1/8W
+5V
R46 C30 103Z 100V R43 15K 1/8W VP1 10K 1/10W R44 1.5K 1/8W R45 27K 1/8W C31 401K 50V 24K 1/8W R47 100K 1/8W R50 4.7K 1/8W
Uvac -12V -5V
D25 IN4148
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D20 +3.3V +5V FR152 PSON
R48 75K 1/8W
R49 100 1/8W +12V R51 47K 1/2W
PG
FB2
D19 IN4148
PG
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R20 251K 1/8W
C29 1 F/50V
D23 IN4148
+5V
L1 R4*20
REV:1.1
C18 2200 F/10V C17 2200 F/10V
R27 47 1W
D15 FR152
+5V
2009.02.23 Page 9 of 11
SD6109
PACKAGE OUTLINE
DIP-20-300-2.54 UNIT: mm
MOS DEVICES OPERATE NOTES:
Electrostatic charges may exist in many things. Please take following preventive measures to prevent effectively the MOS electric circuit as a result of the damage which is caused by discharge: The operator must put on wrist strap which should be earthed to against electrostatic. Equipment cases should be earthed. All tools used during assembly, including soldering tools and solder baths, must be earthed. MOS devices should be packed in antistatic/conductive containers for transportation.
Disclaimer: * Silan reserves the right to make changes to the information herein for the improvement of the design and performance without further notice! * All semiconductor products malfunction or fail with some probability under special conditions. When using Silan products in system design or complete machine manufacturing, it is the responsibility of the buyer to comply with the safety standards strictly and take essential measures to avoid situations in which a malfunction or failure of such Silan products could cause loss of body injury or damage to property. * Silan will supply the best possible product for customers!
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
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2009.02.23 Page 10 of 11

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