SGP400 Datasheet, PDF (4/15 Pages) Fairchild Semiconductor – Low-Power Green-Mode PWM Flyback Power Controller without Secondary Feedback

Product Specification
Low-Power Green-Mode PWM Flyback Power Controller without Secondary Feedback
SGP400
ABSOLUTE MAXIMUM RATINGS
Symbol Parameter
VVDD
DC Supply Voltage*
VFB
FB Pin Input Voltage
VSENSE
Sense Pin Input Voltage
PD
Power Dissipation (TA=85°C)
RθJA
Thermal Resistance (Junction-to-Air)**
RθJC
TJ
TSTG
TL
ESD
Thermal Resistance (Junction-to-Case)**
Operating Junction Temperature
Storage Temperature Range
Lead Temperature (Wave Soldering or Infrared, 10 Seconds)
Electrostatic Discharge Capability, Human Body Model
Electrostatic Discharge Capability, Machine Model
Value
30
-0.3 to 7.0
-0.3 to 7
SOT-26
DIP-8
SOT-26
DIP-8
SOT-26
DIP-8
-40 to +125
-55 to +150
260
4.0
200
247
478
263.3
135.7
119.6
67.1
Unit
V
V
V
mW
°C/W
°C/W
°C
°C
°C
KV
V
* All voltage values, except differential voltages, are given with respect to the network ground terminal.
* Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device.
** Thermal resistance •_JA test board size: SOT 18×12×1.6mm/FR4; DIP 40×35×1.6mm/FR4.
RECOMMENDED OPERATING CONDITIONS
Symbol Parameter
Value
Unit
VDD
DC Supply Voltage
With Secondary Feedback
<20
V
Without Secondary Feedback <22.7
V
TA
Operating Ambient Temperature
-20 to +85
°C
* For proper operation.
ELECTRICAL CHARACTERISTICS (VDD=15V, T_A=25°C, unless noted)
V_DD Section
Symbol Parameter
VDD-ON
Turn-On Threshold Voltage
VDD-OFF
Turn-Off Threshold Voltage
IDD-ST
Start-up Current
IDD-OP
Operating Supply Current
Test Condition
VDD=VDD-ON-0.1V
VDD=15V, CL=1nF
VDD-G OFF
VDD Low-threshold Voltage to Exit Green-off Mode
Min.
16
7.5
Typ.
17
8.0
8
3.6
VDD-OFF+
1.2
Max.
18
8.5
20
4.6
Unit
V
V
µA
mA
V
Feedback Input Section
Symbol Parameter
Test Condition Min. Typ.
AV
Input-Voltage to Current-Sense Attenuation
2/5
VFB-OPEN
Open-Loop Voltage
4.5
ZFB
Input Impedance
IFB=0.1mA to 0.2mA
2.4
VDD-FB
VDD Feedback Threshold Voltage*
FB is Open
IFB=0.4mA
20.7
22.7
18.4
20.4
* The feedback input is pulled by a transistor controlled by the V_DD signal while V_DD ≥ V_DDZ.
Max.
24.7
22.4
Unit
V/V
V
KΩ
V
V
© System General Corp.
Version 1.0.1 (IAO33.0084.B0)
-4-
www.sg.com.tw • www.fairchildsemi.com
September 24, 2007