A8438 Ver la hoja de datos (PDF) - Allegro MicroSystems
Número de pieza
componentes Descripción
Fabricante
A8438 Datasheet PDF : 15 Pages
| |||
A8438
Photoflash Capacitor Charger with IGBT Driver
Performance Characteristics, continued
Tests performed using application circuit shown in figure 4 (unless otherwise noted)
Charge Time
VBIAS = 3.3 V, COUT = 100 μF, ILIM = 2 A, VOUT = 300 V
Connect VBATT to a separate power supply
6.5
5.5
4.5
3.5
2.5
1.5
2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5
VBATT (V)
Efficiency
TA = 25°C
90
VBATT = 3.0 V, VIN = 5.0 V
80
VBATT = VIN = 5.0 V
70
VBATT = VIN = 3.3 V
60
50
40
100
150
200
250
300
VOUT (V)
IGBT Drive Timing Definition
TRIGGER
IGBTDRV
50%
t Dr
tr
90%
10%
50%
t Df
tf
90%
10%
Allegro MicroSystems, LLC
9
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
www.allegromicro.com
Share Link: 