Image SG3525ADWR2G
型号: SG3525ADWR2G
厂商: ON Semiconductor ON Semiconductor
标准:
分类: 半导体集成电路 - IC
描述: switching controllers 8-35v pwm
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SG3525ADWR2G的详细信息

Manufacturer: ON Semiconductor
Product Category: Switching Controllers
RoHS: Yes
Brand: ON Semiconductor
Topology: Half-Bridge, Push-Pull
Number of Outputs: 2
Switching Frequency: 400 kHz
Duty Cycle - Max: 49 %
Output Current: 400 mA
Maximum Operating Temperature: + 70 C
Mounting Style: SMD/SMT
Package / Case: SOIC-16 Wide
Packaging: Reel
Fall Time: 50 ns
Minimum Operating Temperature: 0 C
Rise Time: 100 ns
Series: SG3525A
Factory Pack Quantity: 1000
Synchronous Pin: Yes
SG3525A  
PulseWidthModulator  
ControlCircuit  
The SG3525A pulse width modulator control circuit offers  
improved performance and lower external parts count when  
implemented for controlling all types of switching power supplies.  
The on−chip +5.1 V reference is trimmed to "1% and the error  
amplifier has an input common−mode voltage range that includes the  
reference voltage, thus eliminating the need for external divider  
resistors. A sync input to the oscillator enables multiple units to be  
slaved or a single unit to be synchronized to an external system clock.  
A wide range of deadtime can be programmed by a single resistor  
16  
PDIP−16  
N SUFFIX  
CASE 648  
1
SG3525AN  
AWLYYWW  
connected between the C and Discharge pins. This device also  
T
features built−in soft−start circuitry, requiring only an external timing  
capacitor. A shutdown pin controls both the soft−start circuitry and the  
output stages, providing instantaneous turn off through the PWM latch  
with pulsed shutdown, as well as soft−start recycle with longer  
shutdown commands. The under voltage lockout inhibits the outputs  
16  
1
16  
and the changing of the soft−start capacitor when V  
is below  
CC  
SOIC−16L  
DW SUFFIX  
CASE 751G  
16  
SG3525A  
AWLYYWW  
nominal. The output stages are totem−pole design capable of sinking  
and sourcing in excess of 200 mA. The output stage of the SG3525A  
features NOR logic resulting in a low output for an off−state.  
1
1
Features  
A
= Assembly Location  
8.0 V to 35 V Operation  
WL = Wafer Lot  
YY = Year  
WW = Work Week  
5.1 V " 1.0% Trimmed Reference  
100 Hz to 400 kHz Oscillator Range  
Separate Oscillator Sync Pin  
Adjustable Deadtime Control  
Input Undervoltage Lockout  
PIN CONNECTIONS  
Latching PWM to Prevent Multiple Pulses  
Pulse−by−Pulse Shutdown  
Dual Source/Sink Outputs: "400 mA Peak  
Pb−Free Packages are Available*  
Inv.Input  
Noninv.Input  
Sync  
V
V
1
2
3
4
5
6
7
8
16  
15  
14  
13  
12  
11  
10  
9
ref  
CC  
OutputB  
OSC.Output  
V
C
C
T
Ground  
R
T
OutputA  
Discharge  
Soft−Start  
Shutdown  
Compensation  
(TopView)  
ORDERING INFORMATION  
*For additional information on our Pb−Free strategy and soldering details, please  
download the ON Semiconductor Soldering and Mounting Techniques  
Reference Manual, SOLDERRM/D.  
Semiconductor Components Industries, LLC, 2005  
1
Publication Order Number:  
January, 2005 − Rev. 5  
SG3525A/D  

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