OM5448TR Hendon Semiconductors, OM5448TR Datasheet - Page 10

• Manufacturer Part Number: OM5448TR
• Description: LED Drivers 1-3.5V 1W LED Boost Driver
• Manufacturer: Hendon Semiconductors

Specifications of OM5448TR

• Operating Supply Voltage: 1 V to 3.5 V
• Maximum Supply Current: 1.7 mA
• Maximum Power Dissipation: 200 mW
• Maximum Operating Temperature: 85 C
• Package / Case: SO-23-5
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

2007 May 28, Revision 1.0
S E T I R e si st a n c e (ko h ms)
40
35
30
25
20
S E T I R e si st a n c e (ko h ms)
15
10
5
0
Fig.8 SETI resistance against LED current for both amber and white LEDs (1.2 V, circuit figure 4).
250
200
5
150
100
50
0
5
Fig.9 SETI resistance against LED current for a white LED (2.4 V, circuit figure 4).
10
10
100uH 1.6ohms Amber
100uH 1.6ohms Whit e
Out put Curre nt vs SE TI re sist or for O M5 4 48 wit h 1.2 V supply
15
Out put Curre nt vs SE TI re sist or for O M5 4 48 wit h 2.4 V supply
15
100uH 1.6ohms Whit e
20
20
L E D C u rr e n t (mA )
100uH 0.7ohms Amber
100uH 0.7ohms Whit e
L E D C u r r e n t (mA )
10
25
100uH 0.7ohms Whit e
25
30
30
220uH 1.6ohms Amber
220uH 1.6ohms Whit e
Low Voltage LED Driver
220uH 1.6ohms White
and Boost Converter
35
35
40
Product Specification
OM5448
40
45
45