A8740EEETR-T Allegro Microsystems Inc, A8740EEETR-T Datasheet - Page 6

• Manufacturer Part Number: A8740EEETR-T
• Description: Photoflash Capacitor Charger
• Manufacturer: Allegro Microsystems Inc
• Series: -r

Specifications of A8740EEETR-T

• Constant Current: -
• Constant Voltage: -
• Topology: Flyback
• Number Of Outputs: 1
• Internal Driver: No
• Type - Primary: Flash/Torch
• Type - Secondary: -
• Frequency: -
• Voltage - Supply: 1.5 V ~ 5.5 V
• Voltage - Output: -
• Mounting Type: *
• Package / Case: *
• Operating Temperature: -40°C ~ 85°C
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Conditions
Conditions
Symbol
Symbol
A8740
C1
C2
C3
C1
C2
C3
t
t
Parameter Units/Division
Parameter
Parameter Units/Division
Parameter
V
V
TRIGGER
C
TRIGGER
C
V
V
time
time
V
V
GATE
LOAD
GATE
LOAD
t
t
Dr
t
Df
t
IN
r
IN
f
Rising Signal
Falling Signal
200 ns
765 ns
6.8 nF
6.8 nF
20 ns
Value
21 ns
85 ns
Value
80 ns
1 V
1 V
1 V
1 V
1 V
1 V
C2,C3
C2,C3
IGBT drive waveforms are measured at pin, with capacitive load of 6800 pF
C1
C1
V
TRIGGER
V
V
GATE
IN
Ultra Small Mobile Phone Xenon Photoflash
Characteristic Performance
IGBT Drive Performance
Capacitor Charger with IGBT Driver
t
f
t
t
t
r
115 Northeast Cutoff
1.508.853.5000; www.allegromicro.com
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 U.S.A.
V
TRIGGER
V
V
GATE
IN
6