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UNISONIC TECHNOLOGIES CO., LTD 3513
PC POWER SUPPLY SUPERVISOR
DESCRIPTION
The UTC 3513 is designed to provide protection circuits, power good output (PGO) indicator, fault protection output (FPOB) and a PSONB control for PC switching power supply systems. The protection circuits include over voltage protection (OVP), under voltage protection (UVP) and over current protection(OCP) monitoring for 3.3V, 5V and two 12V. When 3.3V, 5V or 12V voltage is decreasing to 2.68V, 4.3V and 9.9V respectively, the under voltage protection (UVP) function will be enabled. FPO will be set to high to turn off the PWM controller IC. Toggling the PSONB from low to high will reset the fault protection latch. The voltage difference across external current shunt is used for OCP functions. An external resistor can be used to adjust protection threshold. The power supply is turned on after 38mS delay time when PSONB signal is set from high to low. To turn off power supply, PSONB signal is set from low to high with the delay time 38mS. The PGI circuitry provides a power-down warning signal for PGO. When PGI input is lower than the internal 1.20V reference voltage, PGO signal is pulled low. The device is available in two versions: UTC 3513E/3513F. Specially, fan control function is available in OTP/FC pin of UTC 3513F.
CMOS IC
* Pb-free plating product number: 3513EL/3513FL
FEATURES
* OVP/UVP monitors 3.3V, 5V, 12V input voltage level. * OCP monitors IS33, IS5, IS12 input current sense. * Fault protection output (FPOB) with Open Drain Output stage. * Power good output (PGO) with Open Drain Output stage. * 38ms de-bounce time for PSONB input signal. * 300ms time delay from PGI to PGO. * 2.4ms time delay for PSONB to turn off FPOB.
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ORDERING INFORMATION
Order Number Normal Lead Free Plating 3513E-D16-T 3513EL-D16-T 3513E-S16-R 3513EL-S16-R 3513E-S16-T 3513EL-S16-T 3513F-D16-T 3513FL-D16-T 3513F-S16-R 3513FL-S16-R 3513F-S16-T 3513FL-S16-T Package DIP-16 SOP-16 SOP-16 DIP-16 SOP-16 SOP-16 Packing Tube Tape Reel Tube Tube Tape Reel Tube
CMOS IC
3513EL-D16-T (1)Packing Type (2)Package Type (3)Lead Plating (1) R: Tape Reel, T: Tube (2) D16: DIP-16, S16: SOP-16 (3) L: Lead Free Plating, Blank: Pb/Sn
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PIN ASSIGNMENT
3513E PGI GND FPOB PSONB OTP RI VS12B IS12B 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 PGO VDD VS5 IS5 VS33 IS33 VS12A IS12A
CMOS IC
3513F PGI GND FPOB PSONB OTP/FC RI VS12B PWM 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 PGO VDD VS5 IS5 VS33 IS33 VS12A IS12AB
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FUNCTION DESCRIPTION 1
ORDERING 3513E 3513F OTP low level 2.45V 2.45V OTP high level 3.25V 3.25V FC/PWM X T(PSONB ON)/ T(PSONB OFF) 38ms 38ms
CMOS IC
tg2 73s 73s
FUNCTION DESCRIPTION 2
PGI PSONB UV&OC Protection OV Protection PGI<1.2V L No No PGI<1.2V L No Yes PGI<1.2V L Yes No PGI<1.2V L Yes Yes PGI>1.2V L No No PGI>1.2V L No Yes PGI>1.2V L Yes No PGI>1.2V L Yes Yes X H X X Note: FPOB=L means: fault is not latched. FPOB=H means: fault is latched PGO=L means: fault. PGO=H means: No fault X=do not care FPOB L H L H L H H H H PGO L L L L H L L L L
PIN DESCRIPTIONS
PIN NO 1 2 3 4 5 6 7 8 8 9 9 10 11 12 13 14 15 16 * 3513E only ** 3513F only PIN NAME PGI GND FPOB PSONB OTP/FC RI VS12B IS12B* PWM** IS12A* IS12AB** VS12A IS33 VS33 IS5 VS5 VDD PGO TYPE Input Supply Output Input Input Input Input Input Output Input Input Input Input Input Input Input Supply Output DESCRIPTION Power Good Input. For ATX SMPS, it detects AC line voltage through the main transformer. Ground Fault Protection Output. Output signal to control the primary PWM IC through an opto-coupler. When FPOB is low, the PWM IC is enabled. Remote On/Off logic input from CPU or main-board. The power supply will be turned on/off after 38mS delay. Over temperature protection/Fan speed control Reference setting. One external resistor Ri connected between RI and GND pin will determine a reference current, IREF = 1.20/Ri, for OCP programming. 12V over/under voltage protection. 12V over current protection. Pulse width modulation. 12V over current protection. 12V over current protection. 12V over/under voltage protection. 3.3V over current protection 3.3V over/under voltage protection 5V over current protection. 5V over/under voltage protection. Power supply. Power good logic output, 0 or 1(open-drain). Power good=1 means that the power supply is good for operation. The power good delay is 300mS.
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BLOCK DIAGRAM
RST + UN -
CMOS IC
VDD PGO
PGI Bandgap Reference VREF=1.2V IS33
73 s debounce
clr
300ms delay
V12A + IREF*8 VS33 + OV + UN V12A IS12A + IREF*8 VS12A + OV + UN V12A IS12B + IREF*8 VS12B + OV + UN V12A IS5 + IREF*8 VS5 + OV + UN VREF=1.2V + RI 75ms/ 300ms delay Power On Reset PWR 73 s debounce RQ SQ FPOB
Internal Power VCCI=3.6V PSONB OTP 2.4V~3.2V
2.4ms delay
38 ms debounce
PWR
OSC
CLK
V12A
Figure 1. 3513E
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BLOCK DIAGRAM(Cont.)
RST
CMOS IC
VDD
PGI Bandgap Reference VREF=1.2V
+ UN -
73s/ debounce
clr
300ms delay
PGO
V12A
IS33
+ IREF*8 73s debounce
VS33
+ OV -
RQ SQ
FPOB
+ UN V12A Power On Reset PWR Internal Power VCCI=3.6V
IS12AB
+ IREF*8
2.4ms delay
VS12A
+ OV + 75ms/300ms delay
38ms debounce
PSONB
OTP/FC 2.4V~3.2V
UN
V12A + IREF*8 + OV + + PWM
VS12B
UN
PWR
V12A
IS5
+ IREF*8
OSC
CLK
VS5
+ OV VREF=1.2V UN + -
V12A
+ -
RI
Figure 2. 3513F
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ABSOLUTE MAXIMUM RATINGS
PARAMETER SYMBOL
CMOS IC
RATINGS UNIT -0.3 ~ 16 V VS5,VS33 -0.3 ~ 7 V VS12A, VS12B -0.3 ~ 16 V Input Voltage VIN IS12A, IS12B, IS5, IS33 -0.3 ~ V12A+0.3 V -0.3 ~ 7 V PSONB, PGI, OTP FPOB V -0.3 ~ VDD+0.3 Output Voltage VOUT PGO -0.3 ~ VDD+0.3 V Operating Temperature TOPR -40 ~ +125 Storage Temperature TSTG -55 ~ +150 Note 1. Absolute maximum ratings are those values beyond which the device could be permanently damaged. Absolute maximum ratings are stress ratings only and functional device operation is not implied. 2. Stress above those listed may cause permanent damage to the devices.
Supply Voltage
VDD
RECOMMENDED OPERATING CONDITIONS
PARAMETER Supply Voltage VS5,VS33 VS12A, VS12B IS12A, IS12B, IS5, IS33 PSONB, PGI,OTP FPOB PGO FPOB PGO SYMBOL VDD MIN 4 TYP 12 MAX 15 7 15 15 7 7 7 30 10 65 UNIT V V V V V V V mA mA uA ms
Input Voltage
VIN
Output Voltage Output Sink Current RI Output Current Supply Voltage Rising Time (VDD)
VOUT IO(SINK) IO(RI) tR 10 1
ELECTRICAL CHARACTERISTICS (Ta=25
PARAMETER Over Voltage Detection Over Voltage Threshold SYMBOL V12A, V12B V5 V33 VOL ILEAK VIH VIL IIN
and VDD=5V and V12A=12V) MIN 13.2 5.7 3.7 TYP 13.8 5.95 3.9 MAX 14.4 6.2 4.1 0.3 0.7 5 UNIT V V V V uA V V uA V V V V V uA V V V 7 of 12
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TEST CONDITIONS
Low Level Output Voltage (FPOB) Output Leakage Current (FPOB) PSONB High-Level Input Voltage Low-Level Input Voltage Input Pull-up Current PGI and PGO Under Voltage Threshold Input Threshold Voltage (PGI) Low Level Output Voltage (PGO) Output Leakage current (PGO) OTP/FC High-Level Input Voltage (OTP) Low-Level Input Voltage (OTP) Start-up Voltage (FC)
@ ISINK=10mA @ ISINK=30mA @ V(FPOB)=5V 2
0.8 @ PSONB=0V 9.5 4.15 2.54 1.16 100 9.90 4.30 2.68 1.20 10.5 4.45 2.82 1.24 0.4 5 3.40 2.60 0.9
V12A, V12B V5 V33 VI(THD) VOL @ ISINK=10mA ILEAK @ PGO=5V VIH VIL 3513E/3513F
3.10 2.30 0.7
3.25 2.45 0.8
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3513
ELECTRICAL CHARACTERISTICS (Cont.)
PARAMETER SYMBOL TEST CONDITIONS Stop Voltage (FC) PWM High Level Output Voltage VOH @ ISOURCE=4.5mA Low Level Output Voltage VOL @ ISINK=4.5mA Output Leakage Current ILEAK PWM Frequency fPWM SWITCHING CHARACTERISTICS PSONB ON PSONB Low to FPOB T(PSONB ON) @ VDD=5V Low PSONB OFF PSONB Hi to PGO T(PSONB OFF) @ VDD=5V Low @ VDD=5V PGI to PGO Delay Time TPG Timing PGO Low to FPO high TPSOFF @ VDD=5V TUVP1 @ FPOB=Low & PGI > 1.2V UVD/OCD turn on delay Time @ FPOB=Low & PGI < 1.2V TUVP2 Noise Deglitch Time tg1 Noise Deglitch Time for Latch tg2 TOTAL DEVICE Low Voltage VDD Supply Current IDD @ PSONB=5V MIN 0.55 V12A-0.4 TYP 0.65
CMOS IC
MAX 0.75 UNIT V V V A KHz
28
35
0.4 5 42
32 32 200 2.0 65 260 63 63
38 38 300 2.4 75 300 75 75 3.6
62 62 490 4 122 488 120 120
ms ms ms ms ms ms s s V mA
1
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APPLICATION CIRCUIT
5VSB
CMOS IC
5V 3513E 3K 100 PGI 1 16 PGI PGO 15 0.01 F
2 10K
GND
VDD
3 FPOB
VS5
14 47 13 IS5 +3.3V
300 PSONB 0.01 F OTP RI
4
PSONB
IS5
5
OTP
VS33
12
6
RI
IS33
11
IS33
12VB
7 VS12B 8 IS12B IS12A VS12A
10
12VA
IS12B
9
IS12A
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APPLICATION CIRCUIT(Cont.)
CMOS IC
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TYPICAL TIMMING DIAGRAM
1) PGI (UNDER-VOLTAGE):
CMOS IC
2) V33, V5, V12A, V12B (UNDER-VOLTAGE) or IS33, IS5, IS12A, IS12B (OVER-CURRENT):
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TYPICAL TIMMING DIAGRAM
3) V33, V5, V12A, V12B (OVER-VOLTAGE).
CMOS IC
4) OTP/FC, PWM, FPOB: (at VDD=5V, PSONB=0V, V12A, V12B =12V, V5=5V, V33=3.3V)
UTC assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all UTC products described or contained herein. UTC products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice.
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