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CAT. No. U100 -1
I
SHINDENGEN ELECTRIC MFG. CO., LTD.
1
I
Thank you for purchasing the MD3221N DC to DC Converter Power C. This manual contains important information on the safe use of the MD3221N. Your safety is most important to our company. Please read these instructions carefully before using this device. The improper use of this device can result in serious injury or death. Expensive damage to this and other equipment can result. Failure to observe the cautions in this Manual can also result in minor injuries and annoying equipment damage.
The MD3221N is intended for use with general electronic equipment (office automation, communication, measurement, household, etc.) It is not intended for use with equipment whose failure might result in the death or injury of those depending upon it (medical treatment, air navigation, railroad, cargo handling, nuclear power, etc.) If you intend to use the MD3221N with other than the general equipment listed above, please consult with our company. Under no conditions attempt to repair or modify this device by yourself. Doing so can result in electric shock, equipment breakage, fire, and unreliable (and dangerous) equipment operation. Abnormal operating conditions may result in excessive voltage at the output terminal or excessive voltage drops elsewhere in the device. Take steps to prevent load mishandling and breakage (overvoltage and overcurrent prevention) at the final point in the equipment chain. Overvoltage protection The MD3221N is not equipped with an overvoltage protection function. In the event excessive voltage appears within a module, the high input voltage may remain together with a high output voltage even when the equipment is turned off. Smoke and flame may appear. To prevent this, be sure to install some sort of overvoltage protection circuitry before using the equipment. Before providing electrical power to the device, check that the polarity of the input and output terminals is correct (check for misconnections). If circuit protection circuitry is cut off from the rest of the equipment, smoke and flames may appear. Be sure that input voltage level is maintained at the specified level. This may require the installation of a voltage regulator to the input line. Voltage fluctuations may result in the appearance of smoke and flames. If a breakdown or other abnormal condition occurs during equipment use, immediately stop power to the equipment. Contact our company at your earliest possible convenience.
The information appearing in this Manual is the latest available at the time of publication. We reserve the right to make changes to the device without prior notice. Therefore, your device may differ slightly from that described in this Manual. Every effort has been made to make the information in this Manual accurate and reliable. However, our company takes no responsibility for injuries or damage incurred when using the device as described in this Manual. Neither do we take responsibility for damages incurred as a result of patent or other defined rights. We do not give consent for a third person to use our patent or other rights based on this material. We do not guarantee these rights. No part of this material may be reproduced or copied without the specific written consent of our company. This device fully meets the reliability and quality control standards described in our company's catalog. If this device is to be used in a situation where its misuse or failure might cause serious injury or death, consult with our company. Reliability and quality control standards for this device are considered adequate when it is used with the following types of end equipment. Computer - Office automation - Communication terminal - Measurement * Machine tools - Audio-visual - Games and other amusements Household appliance - Personal items - Industrial robot. Special applications where the device may or may not be suitable include the following. Transportation and conveyance (cargo loading) equipment- Primary communications equipment - Traffic signal control equipment - Fire and burglary alarms - Various safety devices - Medical equipment Other special applications where the device reliability is not considered high enough include the following. Atomic energy control systems - Aviation equipment- Aeronautics and space equipment - Ocean depth sounding equipment - Life supportequipment Our company makes a constant effort to improve the quality and reliability of our products. However, it is the customer's responsibility to provide safety. Take the appropriate steps to prevent personal injury, fire, and damage by providing redundancy equipment, fire containment equipment, and devices to protect personnel and equipment from operational mistakes.
I
1 2
6
7
8 3 9
10 4 11
5
12
2
100 90
2 1.8 1.6 1.4 1.2 1 0.8 0.6 0.4 0.2 0 0 0.5 1 1.5 2 2.5 3
7
24
+ Vi
18~21
Vboot VDD
VB VOUT
11~14
+ V0
80 70
MD3221N
OCL- 27
32 S/S
[%]
6 VCC
OCL+ 25
60 50 40
ampOUT 28
1
R/C
+
+
amp- 29
5
30 20 10 0
LC
ampIN 30
2.5V/3.3V 31 Vref OSC GND P.GND1 P.GND2
2 3 4,26 8 16
G
G
[A]
f = 300kHz
P [W]
R/C : 1 Vref : 2 OSC : 3 GND : 4 LC : 5 Vcc : 6 Vboot : 7 P.GND1 : 8 VGL : 9 N/C : 10 VOUT : 11 VOUT : 12 VOUT : 13 VOUT : 14 N/C : 15 P.GND2 : 16
32 : S/S 31 : 2.5V/3.3V 30 : ampIN 29 : amp28 : ampOUT 27 : OCL26 : GND 25 : OCL+ 24 : VB 23 : VGH 22 : N/C 21 : VDD 20 : VDD 19 : VDD 18 : VDD 17 : N/C
SHINDENGEN MD3221N
3
Vcc
6
Vref
2
Vboot VB
7 24
VGH
23
VDD
18~21
+
R/C 1 (L.Active)
ON/OFF CONTROL BANDGAP REFERENCE 1.26V1%
+
THERMAL SHUTDOWN
-
CURRENT LIMIT1 LATCH QRS
Vref UVLO
-
VCC S/S
32
+ -
+
+
VOUT
SRQ LATCH
-
11~14
INVL
ampOUT 28 amp- 29 ERROR-AMP -
+ + -
PWM-COMP
OCL-
+ -
CURRENT LIMIT2 SRQ LATCH CURRENT LIMIT3 SRQ LATCH
+
OSC
Vref
VOUT
-
+
5
4,26
3
31
30
25
27
8
9
16
GND
ampIN OCLOSC 2.5V/3.3V OCL+
LC
P.GND1
VGL P.GND2
N/C : 10,15,17,22
4
C4
D1
C3
7
24
+ Vi
18~21
Vboot VDD
VB VOUT
11~14
L1
+V0
6 VCC
MD3221N
OCL+ 25 OCL- 27
32 S/S
ampOUT 28
1 R/C
R3 C6 D2
+
C1
+
C7
C2
amp- 29
5
C5
LC
Vref
2
ampIN 30 OSC
3
2.5V/3.3V 31 GND P.GND1 P.GND2
4,26 8 16
G
C8
G
5
L1 VOUT
11~14
+V0
OCL+ 25
MD3221N
OCL- 27
L1
2.5V/3.3V 31
11~14
+V0
VOUT
0.8V
ampIN
30
MD3221N
amp29
R4
amp29
R5
0.8V
L1 VOUT
11~14
+V0
OCL+ 25
MD3221N
OCL- 27
2.5V/3.3V 31 ampIN
30
0.8V
amp29
Vi
2.9V
Vss
Vref
2
300kHz OSC 3
MD3221N
100kHz GND 4
Vo
100
(ms)
10
Vo/Vi=0.1 Vo/Vi=0.3 Vo/Vi=0.5 Vo/Vi=0.7
1
0.1 0.001
0.010
0.100
1.000
S/S
(F)
s/s
32
S/S
C2
MD3221N
timer
32
S/S
1
R/C C2 C
MD3221N
MD3221N
Vi
3.45V 2.9V
Vss
Vo
28
ampOUT
C6 R3
MD3221N
29
amp-
L1 VOUT
11~14
R2
+V0
OCL+
MD3221N
25
27
OCL-
0
D1
C4
7 24
C3
0
Vboot
VB
MD3221N
11 14
VOUT
30 25
(mA)
20 15 10 5 0 0 10 20 30 40 50
LC : off LC : on
(mA)
LC : OFF
LC : ON
Vi = 5V, Vo=3.3V, output current 0A 3A X axis : 100
6
Vi
VDD VCC VOUT
+VO
MD3221N
GND P.GND2
7
C4 : 0.1 F
HSU119
C3 : 0.1 F
7
24
Vboot
VB
L1 : 4.7 H
Vi : 5V
18~21
VO : 2.5V/3A
VDD VOUT
11~14
MD3221N
6 VCC
OCL+ 25 OCL- 27
C7: 1F
32 S/S
C2: 0.01 F C1: 68 F +
ampOUT 28
1
R/C
R3: 100k C6: 1000pF D2 : D1FM3
+
amp- 29 ampIN 30
5
C5: 330 F 2
LC
2.5V/3.3V 31
P.GND P.GND 1 2
8 16
Vref
2
OSC
3
GND
4,26
C8 : 1 F G G
8
9
C11
C1 2 01N07
R2 1
R2 2
10
L1
18~21 11~14
+
R20 D20
VDD
VOUT
F20
DC
MD3221N
+
GND
4,26
THY20
D21
P.GND1,2
8,16
C5
R21 C20
-
11
100 90 80
2 1.8 1.6 1.4 Vi=5V Vi=8V Vi=12V Vi=20V 1.2 1 0.8 0.6 0.4 0.2 0 0 0.5 1 1.5 2 2.5 3
3.4
3.36
[%]
70 60 50 40 30 20 10 0
[W]
[V]
3.32 3.28 3.24 3.2 -30
-10
10
30
50
70
90
[A]
[C ]
3.4
3.36
[V]
CH1 :
3.32
CH2 : S/S pin
3.28
3.24
CH3 :
: 10ms/div.
3.2 0 5 10 15 20
[V]
: CH1 : 5V/div. CH2 : 2V/div. CH3 : 2V/div.
3.4
3.36
CH1 : R/C pin
[V]
3.32
CH2 : S/S pin
3.28
3.24
CH3 :
: 10ms/div.
3.2 0 0.5 1 1.5 2 2.5 3
[A]
: CH1 : 5V/div. CH2 : 2V/div. CH3 : 2V/div.
100
100 90
2 1.8 1.6
Vin=5V Vin=8V Vin=12V Vin=20V
90
80 70
[%]
[%]
80
60 50
1.2 1 0.8 0.6 0.4 0.2 0
70
Vo=3.3V Vo=2.5V Vo=1.8V Vo=1.2V Vo=0.8V
40 30 20
60
50
10
40
0
0 0.5 1 1.5 2 2.5 3
0
0.5
1
1.5
2
2.5
3
[A]
[A]
[W]
1.4
12
12.0
PIN
0.1
(2.8)
4.0
0.1 0.1
1 +0.1 .5 0
2.2 0.3
0.1
2.0
0.1
1.75
0.1
11.5 14.2 2.1
0.1
0.1
10.4
24.0
0.9
SHINDENGEN MD3221N
3.1
0.1
2
330
80
0.8
0.6
0.4
0.2
JEITA.RRM.24.D
25.5
13
0.5
0.2
1
PS
29.4
0.1
H
W D
Package
Code No.
Minimum Ordering Quantities
Quantities Per Inner Carton (pcs.) 2000
Quantities per Outer Carton pcs./Carton Weight (kg) 6000 7.6
Outer Carton (mm) D 363 W 363 H 160
SSOP32
4072
2000
U.S.A Shindengen America, Inc.
Head Office 2985 E. Hillcrest Drive, Suite 140 Westlake Village, CA91362, U.S.A. Phone:(1)-805-373-1130 Fax:(1)-805-373-3710 Chicago Office 411 Business Center Drive, Suite 112 Mt. Prospect, IL 60056 U.S.A. Phone:(1)-847-827-7100 Fax:(1)-847-827-7122
Europe Shindengen UK Ltd.
Howard Court, 12 Tewin Road, Welwyn Garden City, Hertfordshire. AL7 IBW Phone:(44)-1707-332-992 Fax:(44)-1707-332-955 German Branch Office Kaiser-Strasse 25, D-40479 Dusseldorf, Germany Phone:(49)-211-491968-0 Fax:(49)-211-4986499
Asia Shindengen Singapore PTE Ltd.
159, Sin Ming Road #04-07, Amtech Building Singapore 575625 Phone:65-6552-3635 Fax:65-6552-4210
Shindengen (H.K.) Co., Ltd.
Head Office Suite 3206, 32/F, Tower 1, The Gateway, 25 Canton Road, TST, Kowloon, Hong Kong Phone:(852)-2317-1884 Fax:(852)-2314-8561 Taipei Branch Room N1010, 10F, Chia-Hsin Bldg. 2 No. 96, SEC. 2, Chung Shan N. RD Taipei, Taiwan R.O.C. Phone:886-2-2560-3990 Fax:886-2-2560-3991 Shanghai Liaison Office W504, Sun Plaza, No.88 Xianxia Road Shanghai 200336, China Phone:86-21-6270-1173 Fax:86-21-6270-0419
Shindengen Electric Mfg. Co., Ltd.
Seoul Office Korea City Air-Terminal Bldg. 606, 159-6 Samsung-Dong Kangnam-ku, Seoul, Korea Phone:82(2)551-1431 Fax:82(2)551-1432 Taiwan Representative Office Room N1010, 10F, Chia-Hsin Bldg.No.96,Sec.2 Chung Shan N. Road, Taipei, Taiwan R.O.C. Phone:886(2)2560-3990 Fax:886(2)2560-3991 Malaysia Regional Office Suite A202, 2nd Floor, West Wing, Wisma Tractors No.7 Jalan SS 16/1, 47500 Subang Jaya, Selangor, Malaysia Phone:60-3-5633-0834 Fax:60-3-5633-1179
SHINDENGEN
ELECTRIC MFG. CO., LTD.
Ikebukuro office: Ikebukuro. YS Bldg., 1-13-23, Minami-Ikebukuro, Toshimaku, Tokyo 171-0022, Japan Phone : ( 81)-03-5951-8105, 8130 Fax : ( 81)-03-5951-8090
This product is classified as the integrated circuit specified in Item 7 in the Attached Table No. 1 to the Export Trade Control Order and in Article 6 of the Ordinance of the Ministry of International Trade and Industry. * This product is subject to the KNOW regulation. May 2002
02500 (NQ)

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