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Ordering number : ENA0865
TN5D51
SANYO Semiconductors
DATA SHEET
ExPD (Excellent-Performance Power & RF Device)
TN5D51
Features
* * * * * *
Separately-Excited Step-Down Switching Regulator (12V Output type)
High efficiency (ON resistance 100m). Over current protection function (Self recovery type). Under voltage protection function. Over temperature protection function (Self recovery type). Soft start function (Variable subject to externally-connected capacitor). Stand-by mode function (Compatible with soft start terminal).
Specifications
Absolute Maximum Ratings at Ta=25C
Parameter Maximum Input Voltage Maximum Output Current SW Pin Application Reverse Voltage FB Pin Maximum Input Voltage SS Pin Maximum Input Voltage Allowable Power Dissipation Operating Temperature Junction Temperature Storage Temperature Symbol VIN max IO max VSW Vfb VSS PD Topr Tj Tstg Tc=25C Conditions Ratings 57 5 --1.5 15 7 2.0 15 --25 to +125 150 --55 to +150 Unit V A V V V W W C C C
Recommend Operating Conditions
Parameter Input Voltage Output Current Operating Temperature Range Symbol VIN IOUT Topr rec Ta=25C Ta=25C Conditions Ratings 20 to 48 0 to 5 --10 to +85 Unit V A C
Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to "standard application", intended for the use as general electronics equipment (home appliances, AV equipment, communication device, office equipment, industrial equipment etc.). The products mentioned herein shall not be intended for use for any "special application" (medical equipment whose purpose is to sustain life, aerospace instrument, nuclear control device, burning appliances, transportation machine, traffic signal system, safety equipment etc.) that shall require extremely high level of reliability and can directly threaten human lives in case of failure or malfunction of the product or may cause harm to human bodies, nor shall they grant any guarantee thereof. If you should intend to use our products for applications outside the standard applications of our customer who is considering such use and/or outside the scope of our intended standard applications, please consult with us prior to the intended use. If there is no consultation or inquiry before the intended use, our customer shall be solely responsible for the use. Specifications of any and all SANYO Semiconductor Co.,Ltd. products described or contained herein stipulate the performance, characteristics, and functions of the described products in the independent state, and are not guarantees of the performance, characteristics, and functions of the described products as mounted in the customer's products or equipment. To verify symptoms and states that cannot be evaluated in an independent device, the customer should always evaluate and test devices mounted in the customer's products or equipment.
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
82907IQ TI IM TC-00000849 No. A0865-1/11
TN5D51
Electrical Characteristics at Ta=25C, See Specified Test Circuit
Parameter Output Voltage Efficiency Drain-to-Source On Resistance Switching Frequency Maximum Duty Line Regulation Load Regulation Output Voltage Temperature Coefficient *1 Over-Current-Protection-Operation -Threshold Current Under-Voltage-Protection-Operation -Threshold Voltage Under-Voltage-Protection-Operation Release Voltage Under-Voltage-Protection Hysteresis Voltage Over-Temperature-Protection-Operation -Threshold-Current *1 Over-Temperature-Protection-Operation Release Temperature *1 Over-Temperature-Protection Hysteresis Temperature *1 SS Terminal Current Standby Operating Voltage Standby Current Symbol VOUT RDS(on) Freq Duty max Vline Vload VO / Ta Iocp Vuvlo on Vuvlo off Vuvlo hys Ttsd on Ttsd off Ttsd hys ISS Vstb on Istb VIN=30V VIN=30V VIN=30V, VSS=0V Conditions VIN=30V, IOUT=3A VIN=30V, IOUT=3A ISW=5A VIN=30V, IOUT=3A VIN=30V, Vfb=0V VIN=20 to 40V, IOUT=3A VIN=30V, IOUT=0.5 to 5A VIN=30V, IOUT=3A, Ta= --25 to +125C VIN=30V 5.1 7.2 8.1 Ratings min 11.7 typ 12.0 92 100 120 88 150 92 180 100 1.2 7.5 8.0 9.0 1.0 165 140 25 10 0.3 500 8.8 9.9 180 96 360 200 max 12.4 Unit V % m kHz % mV mV mV / C A V V V C C C A V A
Note: the values with "*1" are our targeted values, but not guaranteed.
Package Dimensions
unit : mm (typ) 7527-001
10.0 4.5 2.8
3.2
16.0
7.2
3.5
1.6
2.4 0.9 0.5
14.0
12.5
1 1.27 2.54
2
3 4
5 0.7 3.81 2.75
(5.9)
1 : VIN 2 : GND 3 : SWOUT 4 : FB 5 : SS SANYO : TO-220FI5H-HB
1.27
2.54
No. A0865-2/11
TN5D51
Block Diagram
VIN 1 Low Voltage Protect Thermal Shut Down Protect Over Current Protect SENSE Pch MOSFET
3 SWOUT
OUTPUT
OSC SS 5 SOFTSTART Band Gap + -GND 2 AMP
-COMP +
4 FB
Pin Functions
Pin No. 1 2 3 4 5 Symbol VIN GND SWOUT FB SS GND Pulse Voltage Output Feedback from Output Voltage For Soft Start Capacitor Connection and Standby Mode Switching Function Power Supply Input (Maximum 57V)
Application Circuit Example
1 VIN VIN 5 SS + 2 GND
SWOUT 3 VOUT FB 4 +
GND
GND
No. A0865-3/11
TN5D51
2.5
PD -- Ta
Allowable Power Dissipation, PD -- W
20
PD -- Tc
Allowable Power Dissipation, PD -- W
2.0
15
1.5
No
he
at
sin
10
k
1.0
5
0.5
0 0 20 40 60 80 100 120 140 160
0 0 20 40 60 80 100 120 140 160
Ambient Temperature, Ta -- C
IT12620
Case Temperature, Tc -- C
IT12621
Specified Circuit for Electrical Characteristics [Circuit]
L1 IC1 VIN 12345 + C1 C3 D1 C6 + C2 R3 VOUT
GND
GND
IT12637
[Components]
Symbol C1 C2 C3 C6 R3 L1 D1 Component Electrolytic Capacitor Electrolytic Capacitor Capacitor Ceramic Capacitor Metal Oxide Film Resistor Choke Coil Schottky Barrier Diode Specification 3000 to 3600F 2000 to 2200F 0.1F 1000pF 47 / 2W 100H SBT250-06J
* When measuring ripple noise voltage, put 47F (electrolytic capacitor) and 0.1F (ceramic or film capacitor) into measuring point.
No. A0865-4/11
TN5D51
Evaluation Board [Circuit]
L1 IC1 R3 12345 C1A + + C1B + C3 D1 C6 C5 C1C + C2A R2 C4 R1 VOUT
F1 VIN FUSE
GND
GND
IT12638
[Components]
Symbol F1 C1A C1B C1C C2A C3 C4 C5 C6 R1 R2 R3 L1 D1 Fuse Electrolytic Capacitor Electrolytic Capacitor Electrolytic Capacitor Electrolytic Capacitor Film Capacitor N.C. N.C. Ceramic Capacitor Jumper Line N.C. Metal Oxide Film Resistor Choke Coil Schottky Barrier Diode 47 / 2W HK-10S100-1010 SBT250-06J Matsushita Electronic Components Corp. TOHO ZINC CO.,LTD SANYO Semiconductor Co., Ltd 100H 1000pF Murata Manufacturing Co., Ltd Component 4A 1200F / 80V 1200F / 80V 1200F / 80V 2200F / 35V 0.1F / 100V Specification Littelfuse Nippon Chemi-Con Corp. Nippon Chemi-Con Corp. Nippon Chemi-Con Corp. Nippon Chemi-Con Corp. Matsushita Electronic Components Corp. Maker 452 004 KZE KZE KZE KMG ECQ-B Remark
No. A0865-5/11
TN5D51
Recommended PWB Pattern TO-220FI5H-HB Specification Silk Printing (Top View)
TO-220FI5H-HB Specification Pattern (Perspective View)
No. A0865-6/11
TN5D51
Output Voltage -- Output Current
12.3 100
Efficiency -- Output Current
VIN=20V
12.2
Output Voltage -- V
12.1
30V 20V
12.0
Efficiency -- %
VIN=40V
40V
90
30V
80
11.9
11.8 0 1 2 3 4 5 IT12642
70 0 1 2 3 4 5 IT12643
Output Current -- A
14
Output Current -- A
12.3
Characteristic of Output Current Protection
12
Output Voltage -- Input Voltage
12.2
Output Voltage -- V
VIN=40V
8
20V
Output Voltage -- V
10
12.1
6
=3 UT IO
A
12.0
5A
4
11.9 2 0 0 2 4 6 8 IT12644 6 11.8 0 10 20 30 40 50 IT12645
Output Current -- A
5
Input Voltage -- V
Input Current -- Input Voltage
Power Loss -- Input Voltage
4
5
=5A I OUT
Input Current -- A
Power Loss -- W
4
3
IO U
T =5
A
3
2
3A
1
2
3A
1
0 0 10 20 30 40 50 IT12646
0 0 10 20 30 40 50 IT12647
Input Voltage -- V
Input Voltage -- V
180
Output Voltage -- Tc
12.3
Oscillation Frequency -- Tc
VIN=30V
VIN=30V
Oscillation Frequency -- kHz
170
12.2
Output Voltage -- V
160
IOUT=3A
150
12.1
IOUT=3A
140
12.0
130
11.9 --25
0
25
50
75
100 IT12648
120 --25
0
25
50
75
100 IT12649
Case Temperature, Tc -- C
Case Temperature, Tc -- C
No. A0865-7/11
TN5D51
14
Input Reduced-Voltage Characteristic
13
Output Voltage -- V
12
IOUT=3A
5A
11
10
9 0 10 20 30 40 IT12650
Input Voltage -- V IOUT=3A 5V / div
Input / Output Voltage -- V
Output Voltage Rising Characteristic
Input voltage: VIN=30V
Input / Output Voltage -- V
Output Voltage Falling Characteristic
IOUT=3A Input voltage: VIN=30V 5V / div 20ms
20ms
Output voltage: VOUT=12V ON
Output voltage: VOUT=12V
IT12651
IT12652
Output Voltage Rising Characteristic
IOUT=5A 5V / div
Input / Output Voltage -- V
Output Voltage Falling Characteristic
Input voltage: VIN=30V
Input / Output Voltage -- V
Input voltage: VIN=30V
IOUT=5A 5V / div 20ms
20ms
Output voltage: VOUT=12V ON
Output voltage: VOUT=12V
IT12653
Capacitance of Soft Start Capacitor -Output Voltage Rising Characteristic
2V / div 10ms
Input / Output Voltage -- V Input / Output Voltage -- V
Capacitance of Soft Start Capacitor -Output Voltage Rising Characteristic
2V / div 10ms C=0.01F C=0.1F C=0.22F
IT12654
I =3A Output voltage: VOUT=12V OUT
I =5A Output voltage: VOUT=12V OUT
C=0.01F C=0.1F C=0.22F
ON
ON
IT12655
IT12656
No. A0865-8/11
TN5D51
Example of Over-voltage Protection Circuit. Generally, in constant-voltage power supply circuit, output voltage will become higher than the specified value (overvoltage state) in case of any failures or PC board solderability defects. To minimize the damage caused by this over voltage, we recommend setting an over-voltage protection circuit. In designing, the following confirmations are necessary in actual circuit. 1) How the over-voltage protection circuit operates and its effects. 2) Is there any malfunction due to ambient temperature change of each device or exogenous noises? Over-voltage Protection Circuit Example
F1 VIN FUSE THYRISTOR Constant-voltage power supply VOUT ZD
C
R
GND
GND
IT12639
Example of Over-voltage Protection Circuit The thyristor will operate when it accept an over-voltage (VOUT) signal, then the fuse is melted and the input power is cut off, then the operation of IC1 is stopped.
F1 VIN FUSE THYRISTOR + C R
IC1 VOUT 12345 ZD +
GND
GND
IT12640
Continued on next page.
No. A0865-9/11
TN5D51
Continued from preceding page.
SS terminal (5 pin) also acts as standby mode switch. By setting SS terminal (5 pin) voltage to be equal or less than 0.3Vtyp, the output ON/OFF is able to be controlled by external signals. ON/OFF Control Circuit Example
F1 VIN FUSE 12345 + NPN + Signal IC1 VOUT
GND
GND
IT12641
In addition, confirmation of the following points is necessary in actual circuit. 1) How the output ON/OFF control operates and its effects. 2) Is there any malfunction due to the ambient temperature change of each device or exogenous noises? Points to Remember in Pattern Designing 1) Transient large current flows to VIN terminal (1 pin), so we recommend the input capacitor should be 3000F and above. In addition, (+) (-) terminals of the input capacitor should be set near to VIN terminal (1 pin) and GND terminal (2 pin). 2) Large current flows to C1A to C, VIN terminal (1 pin) of IC1, SWOUT terminal (3 pin), D1, L1, and C2A. So, the wiring should be thick and short. 3) FB terminal (4 pin) of IC1 is the feedback terminal from output voltage. It should be near to the output capacitor C2A.
*
For the purpose of ensuring the stability of oscillation, a capacitor should be inserted between SS terminal (5 pin) and GND terminal (2 pin). The absolute maximum rated voltage of SS terminal (5 pin) is 7V. The absolute maximum rated voltage of FB terminal (4 pin) is within the range of 5 to 30V according to the output voltage type. When a voltage equal or higher than the rated value is applied to SS terminal (5 pin) or FB terminal (4 pin) in some cases such as abnormal test, protection measures like inserting fuses should be taken. The built-in over-heat protection is a function to prevent the circuit from overheat state caused by transient temperature rise, but not a function to prevent from abnormal caused by a sudden heat generation. In addition, the reliability of over-heat protection function is guarantee.
*
*
No. A0865-10/11
TN5D51
SANYO Semiconductor Co.,Ltd. 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 SANYO Semiconductor Co.,Ltd. products described or contained herein. SANYO Semiconductor Co.,Ltd. strives to supply high-quality high-reliability products, however, any and all semiconductor products fail or malfunction with some probability. It is possible that these probabilistic failures or malfunction could give rise to accidents or events that could endanger human lives, trouble that could give rise to smoke or fire, or accidents that could cause damage to other property. When designing equipment, adopt safety measures so that these kinds of accidents or events cannot occur. Such measures include but are not limited to protective circuits and error prevention circuits for safe design, redundant design, and structural design. In the event that any or all SANYO Semiconductor Co.,Ltd. products described or contained herein are controlled under any of applicable local export control laws and regulations, such products may require the export license from the authorities concerned in accordance with the above law. No part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying and recording, or any information storage or retrieval system, or otherwise, without the prior written consent of SANYO Semiconductor Co.,Ltd. Any and all information described or contained herein are subject to change without notice due to product/technology improvement, etc. When designing equipment, refer to the "Delivery Specification" for the SANYO Semiconductor Co.,Ltd. product that you intend to use. Information (including circuit diagrams and circuit parameters) herein is for example only; it is not guaranteed for volume production. Upon using the technical information or products described herein, neither warranty nor license shall be granted with regard to intellectual property rights or any other rights of SANYO Semiconductor Co.,Ltd. or any third party. SANYO Semiconductor Co.,Ltd. shall not be liable for any claim or suits with regard to a third party's intellctual property rights which has resulted from the use of the technical information and products mentioned above.
This catalog provides information as of August, 2007. Specifications and information herein are subject to change without notice.
PS No. A0865-11/11

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