A8739EEETR-T Allegro Microsystems Inc, A8739EEETR-T Datasheet - Page 8

• Manufacturer Part Number: A8739EEETR-T
• Description: Photoflash Capacitor Charger
• Manufacturer: Allegro Microsystems Inc
• Type: Flash/Torchr

Specifications of A8739EEETR-T

• Number Of Outputs: *
• Internal Driver: No
• Type - Primary: Flash/Torch
• Voltage - Supply: *
• Mounting Type: Surface Mount
• Package / Case: 8-UFDFN Exposed Pad
• Operating Temperature: *
• Voltage - Output: *
• Frequency: *
• Current - Output / Channel: *
• Internal Switch(s): Yes
• Efficiency: 75%
• Topology: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 620-1365-2

A8739
R
BAT
= 0 Ω, Transformer L
R
BAT
= 0 Ω, Transformer L
86%
84%
82%
80%
78%
76%
74%
72%
70%
68%
66%
64%
62%
60%
58%
56%
54%
20
18
16
14
12
10
8
6
4
2
0
1.5
1.5
Efficiency versus Battery Voltage at Various ILIM
Charge Time versus Battery Voltage at Various ILIM
Ultra-Small Mobile Adjustable Xenon Photoflash
2.0
2.0
PRIMARY
PRIMARY
2.5
2.5
= 12.8 μH, N =10.25, V
Characteristic Performance
3.0
3.0
= 12.8 μH, N =10.25, V
Battery Voltage (V)
temperature
Capacitor Charger with IGBT Driver
3.5
3.5
4.0
4.0
IN
=3.6 V, C
IN
4.5
4.5
=3.6 V, at room temperature
OUT
5.0
5.0
= 100 μF / 330 V UCC, at room
5.5
5.5
115 Northeast Cutoff
1.508.853.5000; www.allegromicro.com
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 U.S.A.
ILIM13 (0.65A)
ILIM11 (0.79A)
ILIM9 (0.93A)
ILIM7 (1.07A)
ILIM5 (1.22A)
ILIM3 (1.36A)
ILIM1 (1.50A)
ILIM13 (0.65A)
ILIM11 (0.79A)
ILIM9 (0.93A)
ILIM7 (1.07A)
ILIM5 (1.22A)
ILIM3 (1.36A)
ILIM1 (1.50A)
8