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SDC7500 PDF 데이터시트 ( Data , Function )

부품번호 SDC7500 기능
기능 Voltage Mode PWM Controller
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SDC7500 데이터시트, 핀배열, 회로
Voltage Mode PWM Controller
Datasheet
SDC7500
General Description
Features
The SDC7500 is a voltage mode pulse width modulation
Tswitching regulator control circuit designed primarily for
power supply control.
NThe SDC7500 consists of a reference voltage circuit, two
Eerror amplifiers, an on-chip adjustable oscillator, a
Mdead-time control (DTC) comparator, a pulse-steering
control flip-flop, and an output control circuit. The
Uprecision of voltage reference (VREF) is ±1% through
Ctrimming and this provides a better output voltage
regulation. The SDC7500 provides for push-pull or
Osingle-ended output operation, which can be selected
Dthrough the output control.
Complete PWM power control circuitry
Uncommitted outputs for 200mA sink or source
current
Output control for single ended or push pull
operation
Internal regulator provides a stable 5V reference
supply with 5% tolerance
Adjustable dead-time control
Package: DIP-16
Applications
PC power supply
DC-DC convertor
CONFIDENTIALPin Configuration
1 VIN+
2 VIN-
3 COMP
4 DEAD
5 CT
VIN+ 16
VIN- 15
VREF 14
CTRL 13
VCC 12
SDC
DIP-16
6 RT
7 GND
8 C1
C2 11
E2 10
E1 9
Figure 1. Pin Configuration
January, 2013 Rev. 1.0
©2013 Shaoxing Devechip Microelectronics Co., Ltd.
1/8
www.sdc-semi.com
Free Datasheet http://www.nDatasheet.com




SDC7500 pdf, 반도체, 판매, 대치품
Voltage Mode PWM Controller
Datasheet
SDC7500
Electrical Characteristics (Ta=25°C, VCC=15.0V, unless otherwise specified.)
Parameter
TOutput voltage(SDC7500A)
NOutput voltage(SDC7500B)
Input regulation
EOutput regulation
MShort-circuit output current
Output voltage change with temperature
CUInput threshold voltage
OInput sink current
DFrequency
LStandard deviation of frequency
IAFrequency change with temperature
Frequency change with voltage
NTInput offset voltage
EInput offset current
Input bias current
IDOutput sink current
FOutput source current
Common-mode input voltage range
NOpen-loop voltage amplification
OUnity-gain bandwidth
CCommon-mode rejection ratio
Symbol
Conditions
Reference Section
VREF IREF=1mA
VDelta_VV
VDelta_VL
ISC
Delta_VT
VCC=7V~40V
IREF=1mA~10mA
VREF=0V, Ta=25°C
Ta=-25°C~85°C
PWM Section
VTH DUTY=0
ISINK VCOMP=0.7V
Oscillator Section
fOSC
Delta
CT=1nf, RT=12
ALL Value of CT RT
Ta constant
Delta_FT
Ta=-25°C~85°C
Delta_FV
VCC=7V~40V
Amplifier Section
VOFFSET
IOFFSET
IBIAS
ISINK
ISOURSE
VIN
GV
fBAND
RREJ
VO(PIN3)=2.5V
VO(PIN3)=2.5V
VO(PIN3)=2.5V
VCOMP=0.5V
VCOMP=3.5V
VCC=7V~40V
VO=0.5V~3.5V
VCC=40V
Min Typ Max Unit
4.90 - 4.99 V
4.99 - 5.08 V
2 25 mV
1 15 mV
55 mA
0.2 1
%
4 4.5 V
0.3 0.7
mA
23 29 34 kHz
10 %
12
0.1
%
%
2 10
25 250
0.2 1
0.3 0.7
-2
-0.3~VCC
70 95
800
65 80
mV
nA
uA
mA
mA
V
dB
kHz
dB
Input bias
CMaximum duty cycle
DInput threshold voltage
SInput threshold voltage
Dead Time Control Section
IBIAS VI=0V~5.25V
GV VI(PIN4)=0
VTH DUTY=0
VTH DUTY=MAX
-2 -10 uA
45 %
2.7 3.3 V
0
Power Current Section
Standby supply current
ICC1 VCC=15V
6 10 mA
Standby supply current
Average supply current
ICC VCC=40V
IAV VPIN4=2V
9 15 mA
7.5 mA
January, 2013 Rev. 1.0
©2013 Shaoxing Devechip Microelectronics Co., Ltd.
4/8
www.sdc-semi.com
Free Datasheet http://www.nDatasheet.com

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SDC7500 전자부품, 판매, 대치품
Voltage Mode PWM Controller
Datasheet
SDC7500
Package Dimension
DIP-16
Symbol
A
A1
NFIDENTIAL DOCUMENTDimensionsInMillimeters
Min Max
O 3.710
4.310
C 0.510
-
Dimensions In Inches
Min Max
0.146
0.170
0.020
-
A2
CB
B1
SDC
3.200
0.380
0.204
1.524(BSC)
3.600
0.570
0.360
0.126
0.015
0.008
0.060(BSC)
0.142
0.022
0.014
D
18.800
19.200
0.740
0.756
E
6.200
6.600
0.244
0.260
E1
7.320
7.920
0.288
0.312
e 2.540(BSC)
0.100(BSC)
L
3.000
3.600
0.118
0.142
E2
8.400
9.000
0.331
0.354
January, 2013 Rev. 1.0
©2013 Shaoxing Devechip Microelectronics Co., Ltd.
7/8
www.sdc-semi.com
Free Datasheet http://www.nDatasheet.com

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