A8740EEETR-T Allegro Microsystems Inc, A8740EEETR-T Datasheet - Page 15

• 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

A8740
Recommended Layout
Schematic
Top side
Bottom side
Top components
10 μF
V
C2
BAT
0.1 μF
C4
2 kΩ
R10
1 nF
C5
Ultra Small Mobile Phone Xenon Photoflash
6
7
1
8
VBAT
VIN_DRV
DONE
CHARGE
Capacitor Charger with IGBT Driver
A8740
GND
4
GATE
TRIG
SW
5
3
2
1 nF
C6
115 Northeast Cutoff
1.508.853.5000; www.allegromicro.com
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 U.S.A.
T1
12 Ω
RG
D1
VOUT
100 μF
COUT
15