SG6846C Ver la hoja de datos (PDF) - Fairchild Semiconductor
Número de pieza
componentes Descripción
Fabricante
SG6846C Datasheet PDF : 15 Pages
| |||
Electrical Characteristics
VDD = 15V, TA = 25°C, unless noted.
Symbol
Parameter
VDD Section
VDD-OP Continuously Operating Voltage
VDD-ON Turn-on Threshold Voltage
VDD-OFF Turn-off Voltage
VDD-LH
IDD-ST
Threshold Voltage for Latch-off Release
Start-up Current
IDD-OP
Operating Supply Current
VDD-OVP VDD Over-Voltage Protection (Latch off)
tD-VDDOVP VDD OVP Debounce Time
IDD-OVP VDD OVP Latch-off Holding Current
VIN Section
VIN-OFF PWM Turn-off Threshold Voltage
Test Condition
VDD-ON – 0.16V
GATE Open
RI = 26kΩ
VDD = 5V
VIN-ON PWM Turn-on Threshold Voltage
Feedback Input Section
AV
ZFB
VFBO
VFB-OLP
tD-OLP
Input-Voltage to Current-Sense Attenuation
Input Impedance
FB Pin Open Voltage
Threshold Voltage of Open-loop Protection
Open-loop Protection Delay Time
Current Sense Section
ZSENSE
tPD
tLEB
VSLOPE
VSTH1V
VSTH3V
VSTH1V-1/2
VSTH3V-1/2
tD-OCP
tSS-65KHz
tSS-130KHz
Input Impedance
Delay to Output
Leading-edge Blanking Time
Slope Compensation
Threshold Voltage for Current Limit
Threshold Voltage for Current Limit
OCP Threshold Voltage for Current Limit
OCP Threshold Voltage for Current Limit
Delay Time for Over-Current Protection
Period During Start up Time
RI = 26kΩ
Duty = DCYMAX
VIN = 1V
VIN = 3V
VIN = 1V
VIN = 3V
RI = 26kΩ
RI = 26kΩ
RI = 13kΩ
Min. Typ. Max. Unit
20
V
15.5 16.5 17.5 V
9.5 10.5 11.5 V
3
4
5
V
8
30 µA
3.7
5.0 mA
22.6 23.6 24.6 V
60
100 140 µs
30
50
70 µA
0.65 0.70 0.75 V
VIN-
VIN-
VIN-
OFF+0.1 OFF+0.2 OFF+0.2 V
8
0
2
1/3.5 1/4.0 1/4.5 V/V
4.0
5.5
7.0 kΩ
6.2
V
4.7
5.2
5.7
V
100 110 120 ms
12
kΩ
100 250 ns
270 360
ns
0.30 0.33 0.36 V
1.07 1.10 1.13 V
0.91 0.94 0.97 V
0.52 0.55 0.58 V
0.44 0.47 0.50 V
100 110 120 ms
4.5
5.0
5.5 ms
2.25 2.50 2.75 ms
Continued on following page…
© 2007 Fairchild Semiconductor Corporation
SG6846C • Rev. 1.1.2
5
www.fairchildsemi.com
Share Link: 