EL1848IWT-T7 Intersil, EL1848IWT-T7 Datasheet
EL1848IWT-T7
Specifications of EL1848IWT-T7
Related parts for EL1848IWT-T7
EL1848IWT-T7 Summary of contents
Page 1
... The TSOT is just 1mm high, compared to 1.45mm for the standard SOT-23 package. Ordering Information PART NUMBER PACKAGE TAPE & REEL PKG. DWG. # EL1848IWT-T7 8-Pin TSOT 7” (3K pcs) EL1848IWT-T7A 8-Pin TSOT 7” (250 pcs) EL1848IWTZ-T7 8-Pin TSOT 7” (3K pcs) (See Note) (Pb-free) EL1848IWTZ- 8-Pin TSOT 7” ...
Page 2
Pinouts EL1848 (8-PIN TSOT) TOP VIEW COMP 1 CNTL 2 VOUT EL1848 8 VIN SGND 5 PGND EL1848 (8-PIN MSOP) TOP VIEW CNTL VIN 2 7 COMP PGND 3 6 ...
Page 3
Absolute Maximum Ratings (T = 25°C) A COMP, CNTL SGND -0. SGND . ...
Page 4
Block Diagram 2. 4.7µF COMP C COMP 0.1µF PWM SIGNAL CNTL V CNTL Typical Performance Curves All performance curves and waveforms are taken with C series; unless otherwise specified. 1.05 1.04 1.03 1.02 1.01 1 2.5 ...
Page 5
Typical Performance Curves All performance curves and waveforms are taken with C series; unless otherwise specified 0.5 1 1.5 V (V) CNTL FIGURE LED BAT54HT1 L V ...
Page 6
Typical Performance Curves All performance curves and waveforms are taken with C series; unless otherwise specified. BAT54HT1 33µH 4.7µ VIN LX 3 VOUT CTRL CNTL PGND 1 6 COMP SGND ...
Page 7
Typical Performance Curves All performance curves and waveforms are taken with C series; unless otherwise specified. BAT54HT1 15µH 4.7µ VIN LX 3 VOUT CTRL 2 5 CNTL PGND 1 6 COMP SGND ...
Page 8
Waveforms All performance curves and waveforms are taken with C series; unless otherwise specified CNTL I LED 10ms/DIV FIGURE 13. START-UP V CNTL LED 20ms/DIV FIGURE 15. TRANSIENT RESPONSE V =0.34V, I ...
Page 9
Detailed Description The EL1848 is a constant current boost regulator specially designed for driving white LEDs. It can drive LEDs in series or 9 LEDs in parallel/series configuration and achieves efficiency up to 91%. The brightness of ...
Page 10
For the same inductance, higher overall efficiency can be obtained by using lower DCR inductor. EFFICIENCY =3.3V FOR IN DIFFERENT L L=22µH 83 L=33µ L=Coilcraft LPO1704 SERIES 1mm HEIGHT ...
Page 11
TSOT Package Outline Drawing 11 EL1848 ...
Page 12
... Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use ...