A8735EEETR-T Allegro Microsystems Inc, A8735EEETR-T Datasheet - Page 7

• Manufacturer Part Number: A8735EEETR-T
• Description: IC PHOTOFLASH CAP CHARGER 8DFN
• Manufacturer: Allegro Microsystems Inc

Specifications of A8735EEETR-T

• Applications: Photoflash Capacitor Charger, Xenon
• Current - Supply: 50µA
• Voltage - Supply: 1.5 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-UFDFN
• Ic Function: Capacitor Charger Controller
• Supply Voltage Range: 2.3V To 5.5V
• Operating Temperature Range: -40°C To +85°C
• Digital Ic Case Style: DFN
• No. Of Pins: 8
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 620-1339-2

A8735
Transformer L
Transformer L
86%
84%
82%
80%
78%
76%
74%
72%
70%
68%
66%
64%
62%
60%
58%
56%
54%
PRIMARY
20
18
16
14
12
10
8
6
4
2
0
1.5
1.5
= 12.8 μH, N =10.25, V
2.0
2.0
Ultra Small Mobile Phone Xenon Photoflash
PRIMARY
Characteristic Performance
Efficiency versus Battery Voltage
Charge Time versus Battery Voltage
2.5
2.5
= 12.8 μH, N =10.25, V
3.0
3.0
Battery Voltage (V)
Capacitor Charger with IGBT Driver
IN
=3.6 V, C
3.5
3.5
4.0
4.0
OUT
IN
=3.6 V, at room temperature
= 100 μF / 330 V UCC, at room temperature
4.5
4.5
5.0
5.0
5.5
5.5
115 Northeast Cutoff
1.508.853.5000; www.allegromicro.com
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 U.S.A.
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