ADP1621 Ver la hoja de datos (PDF) - Analog Devices
Número de pieza
componentes Descripción
Fabricante
ADP1621 Datasheet PDF : 32 Pages
| |||
45
40
MOSFET QG = 25nC
35
30
25
20
15
MOSFET QG = 15nC
10
5
MOSFET QG = 7nC
0
0 200 400 600 800 1000 1200 1400 1600 1800
SWITCHING FREQUENCY (kHz)
Figure 11. PIN Supply Current vs. Switching Frequency
ADP1621
35
TA = 25°C
30
VIN = VPIN = 5V
tR OR tF IS FROM
tR
10% TO 90% OF
25
THE GATE VOLTAGE
tF
20
15
10
5
0
0 5 10 15 20 25 30 35 40 45 50
GATE CAPACITANCE (nF)
Figure 14. GATE Rise and Fall Times vs. CGATE
2.60
SDSN = 5V
2.55
2.50
2.45
2.40
–50
0
50
100
150
TEMPERATURE (°C)
Figure 12. VUVLO Threshold vs. Temperature
1600
1500
1400
1300
1200
1100
1000
900
800
700
600
500
400
300
200
100
0
0
20 40 60 80 100 120 140 160 180 200
RFREQ (kΩ)
Figure 15. Oscillator Frequency vs. Resistance
1.03
VIN = 5V
1.02
1.01
1.00
0.99
0.98
0.97
–50
0
50
100
TEMPERATURE (°C)
Figure 13. Frequency vs. Temperature
198
TA = 25°C
197 RFREQ = 100kΩ
196
195
194
193
192
191
150
2
3
4
5
VIN (V)
Figure 16. Oscillator Frequency vs. VIN
Rev. A | Page 9 of 32
Share Link: 