SDC606Z-G1 [SDC]
Current Mode PWM Controller;
| 型号： | SDC606Z-G1 |
| 厂家： | 
Shaoxing Devechip Microelectronics Co., Ltd |
| 描述： | Current Mode PWM Controller |
| 文件： | 总11页 (文件大小：378K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Datasheet
General Description
Features
SDC606 is a high-performance current mode control IC
designed for AC/DC convertor, which supplies about
continuous 12W output power at the universal AC input
range from 85V to 265V.
Built-in oscillator
Built-in high voltage power transistor of 700V
High voltage start-up
Very low start-up and operating current
Low standby power consumption
Protections: OVP, UVLO, SCP, OLP and OTP
Built-in high precise current limit with temperature
compensation
12W and peak 15W output power at the universal
AC input ran
15W aak 18W output power at AC input 220V
Very few ternal components
Package: DIP-8
Aplications
Portable rechargeable power supply
Appliance controller power supply
Adaptor/charger for cell and other portable
apparatus
DVD/DVB power supply, ATX standby power supply
DIP-8
Figure 1. Package Type
December, 2013 Rev. 1.2
1/11
©2013 Shaoxing Devechip Microelectronics Co., Ltd.
www.sdc-semi.com
Datasheet
Pin Configuration
Package: DIP-8
OB
OC
1
8
VCC
GND
NC
7
6
2
3
OC
IS
FB
4
5
Figure 2. Pin Configuration
Pin Number
Pin Name
OB
Function
1
2
Startuurrent input, connecting to startup resistor
VCC
GND
NC
Supply voltage pin
3
Ground
4
NC
5
FB
Feedback pin
6
IS
Cycle-by-cycle current limit, connecting a resistor to GND
Output of HV transistor, connecting to primary wind of transformer
7,8
OC
Table 1. Pin Description
December, 2013 Rev. 1.2
©2013 Shaoxing Devechip Microelectronics Co., Ltd.
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Datasheet
Functional Block Diagram
VCC
OB
OC
OC
STC
VREF
Dmax
OSC
OLP
DRVU
OVP
UVP
12V
3.7V
FB
COMP
FB
2.4V
OTP
PWM
0.625V
IS
GND
Figure 3. Functional Block Diagram
December, 2013 Rev. 1.2
©2013 Shaoxing Devechip Microelectronics Co., Ltd.
3/11
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Datasheet
Ordering Information
-
X
X
SDC606 X
E1: Pb-free
G1: Halogen-free
Circuit Type
Package
DIP-8: Z
Blank: Tube
Part Number
Marking ID
Package
Temperature
Packing Type
Pb-free
Halogen-free
Pb-free
alogen-free
DIP-8
SDC606Z-E1
SDC606Z-G1
SD
SDC606G
Tube
-40℃~85℃
December, 2013 Rev. 1.2
©2013 Shaoxing Devechip Microelectronics Co., Ltd.
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Datasheet
Absolute Maximum Ratings (NOTE: Stresses greater than those listed under Absolute Maximum Ratings may cause
permanent damage to the device.)
Parameter
Power supply voltage VCC
Symbol
Value
Unit
VCC
VCB
Ip
18
-0.3~700
1000
V
V
Endurance voltage of OC collector
Peak value of switching current
Total dissipation power
mA
mW
A
PD
1000
Collector current
IC
1.8
Operating Junction Temperature
Storage temperature range
TJ
-40~150
-55~150
260
°C
°C
°C
mA
V
TSTG
TLEAD
-
Lead temperature (soldering, 10sec)
Latch-up test per JEDEC 78
200
ESD, HBM model per Mil-Std-883, Method 3015
ESD,MM model per JEDEC EIA/JESD22-A115
HBM
MM
2000
200
V
Table 2. Absolute Maxium Ratings
Recommended Operating Conditions
Parameter
Power supply voltage, VCC
Operating temperature
Symbol
VCC
Min
Max
11.0
85
Unit
4.5
-40
V
Ta
°C
Table 3. Recommended Operating Conditions
December, 2013 Rev. 1.2
©2013 Shaoxing Devechip Microelectronics Co., Ltd.
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Datasheet
Electrical Characteristics(Ta=25°C, VCC =7.0V, RI S=1Ω, unless otherwise specified)
Parameter
Symbol
Conditions
Min
Typ
Max
Unit
Output Section
On-state saturation voltage drop
Output rise time
I
OC=600mA
CL=1nF
CL=1nF
-
-
-
-
-
-
-
1
V
ns
VSAT
Tr
75
75
2.6
Output fall time
-
ns
Tf
HV start-up current
1
mA
ISTC
Oscillator Section
Oscillating frequency
Temperature Stability
Temperature Stability
-
55
-
61
-
70
1
kHz
%
fOSC
VCC =4.5V~11V
Ta=0°C~85°C
△FV
△FT
-
-
1
%
Feedback Section
Pull-up current
Pull-down resistance
PSRR
VFB=2.5V
0.40
10
-
0.50
15
0.70
20
mA
kΩ
dB
IFB
RFB
-
-
VC=4.5V~11V
60
70
Current Sampling Section
Over current threshold voltage
IS-GND resistance
-
-
-
-
0.60
0.625
20
0.65
25
V
VTH_OC
ITH_OC
PSRR
TD
15
-
Ω
dB
ns
PSRR
60
70
Over current detection and control delay
-
150
250
PWM Section
Maximum duty cycle
Minimum duty cycle
VFB=4.0V
-
52
-
57
62
-
%
%
DMAX
DMIN
1.5
Power Current Section
Start-up current
-
-
15
2.8
9.2
3.7
2.0
12
50
4.0
9.6
4.0
2.4
13
uA
mA
V
IST
IOP
VST
VUV
VRST
VOV
Operating current
VFB=0V , VCC =8V
2.0
8.8
3.3
1.7
11
Start-up Voltage
-
-
-
-
Under-voltage lockout threshold
Restart Voltage
V
V
Oveltage protection
V
OTP Section
Thermal shutdown temperature
-
-
150
-
TOTP
℃
BJT Section
CB=700V, IE=0
Collector cutoff current
V
-
-
-
-
-
-
-
0.1
0.1
0.1
-
mA
mA
mA
V
ICBO
ICEO
IEBO
VCBO
VCEO
Collector-emitter cutoff current
Collector-base cutoff current
Collector-base breakdown voltage
Collector-emitter sustain voltage
VCE=450V, IB=0
VEB=9V, IC=0
IC=0.1mA
-
700
450
IC=1mA
-
V
December, 2013 Rev. 1.2
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Datasheet
Parameter
Collector-base sustain voltage
DC current gain
Symbol
VEBO
Conditions
IE=0.1mA
Min
9
Typ
-
Max
-
Unit
V
-
VCE=5V, IC=0.5A
IC=1A, IB=0.25A
IC=1A, IB=0.25A
15
-
50
hFE
Collector-emitter saturation voltage
Base-emitter saturation voltage
0.3
0.8
0.8
1.2
V
V
VCE_STA
VBE_STA
Table 4. Electrical Characteristics
December, 2013 Rev. 1.2
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©2013 Shaoxing Devechip Microelectronics Co., Ltd.
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Datasheet
Function Description
Startup control
frequency internally decreases to lower the switching
power loss and improve the conversion efficiency. If FB is
less than 2.4V(Typ), the cycle of the oscillator will increase
with it, the less FB is, the wider the cycle of the oscillator
is, until the oscillation stop.
Startup current of SDC606 is designed to be very low so
that VCC could be charged up above UVLO threshold level
and device starts up quickly. A large startup resistor can
therefore be used to minimize the power loss yet achieve
a reliable startup in application.
Power transistor drive
During the ON cycle, OB pin supplies base current for the
power transistor, ls down the emitter of the power
transistor to nd OB is adaptive to the IS current. If the
current of IS eeds the specified current of FB, SDC606
will turn into the OFF cycle. During the OFF cycle, OB is
plled down, the power transistor will shut off.
PWM control
The peak current (sensed on the IS pin) is set by the
voltage on FB pin. By comparing the voltage on FB pin and
the IS ramp voltage, the duty-cycle of the PWM
modulator is thus adjusted to provide the necessary load
current at the desired output voltage. FB can be
controlled by internal control circuit and external
feedback circuit.
Over temperature protection
When IC’s internal temperature reaches 150°C, FB voltage
will be pulled down by internal control circuit, the
switching frequency decreases or shut off. This protection
protects the IC from over temperature.
VCC over voltage protection
VCC over voltage protection circuit is integrated into IC.
When VCC voltage reaches 12V(TYP), FB e is pulled
down via internal control circuit, then the PWM switching
is shut off. When VCC voltage goes down below 12V(TYP),
the switching is reactivated. The VCC over voltage
protection ensures IC to rate reliably.
Cooling requirements
Layout is important for all switching regulators. To achieve
high efficiency, good regulation, and stability, a well
designed printed circuit board layout is required. The main
power loss inside IC is produced by the internal transistor,
an extra copper plane at the pin7 and pin8 help dissipate
the heat generated by losses in transistor. For a typical
application (AC input from 85V to 265V, 12W output), and
200mm2 copper plane is necessary.
Current limit
The output is shut off to limit the power when voltage of
IS Pin exceeds Current sense threshold voltage.
Greode control
Under no-load and light-load condition, the switching
December, 2013 Rev. 1.2
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©2013 Shaoxing Devechip Microelectronics Co., Ltd.
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Datasheet
Typical Application
V+
GND
OB
OC
OC
VCC
GND
NC
IS
FB
SDC606
Figure 4. Typical Application
November, 2013 Rev. 1.1
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©2013 Shaoxing Devechip Microelectronics Co., Ltd.
www.sdc-semi.com
Datasheet
Package Dimension
DIP-8
Dimensions In Millimeters
Dimensions In Inches
Symbol
Min
Max
Min
Max
A
A1
A2
B
3.710
0.510
3.200
0.380
4.310
0.146
0.020
0.126
0.015
0.170
3.600
0.570
0.142
0.022
B1
C
1.524(BSC)
2.540(BSC)
0.060(BSC)
0.100(BSC)
0.204
9.000
6.200
7.320
0.360
9.400
6.600
7.920
0.008
0.354
0.244
0.288
0.014
0.370
0.260
0.312
D
E
E1
e
L
3.000
8.400
3.600
9.000
0.118
0.331
0.142
0.354
E2
November, 2013 Rev. 1.1
©2013 Shaoxing Devechip Microelectronics Co., Ltd.
10/11
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Datasheet
Shaoxing Devechip Microelectronics Ltd.
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IMPORTANT NOTICE
Information in this document is provided solely in connection with Shaoxing Devechip Microelectronics Co., Ltd. (abbr. SDC) products.
SDC reserves the right to make change, corrections, modifications or improvements, to this document, and the products and services
described herein at anytiithout notice. SDC does not assume any responsibility for use of any its products for any particular
purpose, nor does SDC asany liability arising out of the application or use of any its products or circuits. SDC does not convey
any license under is patent rights or other rights nor the rights of others.
© 2013 Devechip Microelectronics - All rights reserved
Conta
Headqus of Shaoxing
Address: Tian Mu Road, No13,
Shaoxing city, Zhejiang province, China
Zip code: 312000
Shenzhen Branch
Address: 22A, Shangbu building, Nan Yuan Road, No.68,
Futian District, Shenzhen city, Guangdong province, China
Zip code: 518031
Tel: (86) 0575-8861 6750
Tel: (86) 0755-8366 1155
Fax: (86) 0575-8862 2882
Fax: (86) 0755-8301 8528
November, 2013 Rev. 1.1
©2013 Shaoxing Devechip Microelectronics Co., Ltd.
11/11
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