ISL97632IRT14Z-TK Intersil, ISL97632IRT14Z-TK Datasheet - Page 5

• Manufacturer Part Number: ISL97632IRT14Z-TK
• Description: IC LED DRIVR WHITE BCKLGT 8-TDFN
• Manufacturer: Intersil
• Type: Backlight, White LEDr

Specifications of ISL97632IRT14Z-TK

• Topology: PWM, Step-Up (Boost)
• Number Of Outputs: 1
• Internal Driver: Yes
• Type - Primary: Automotive, Backlight
• Type - Secondary: White LED
• Frequency: 1.3MHz ~ 1.6MHz
• Voltage - Supply: 2.4 V ~ 5.5 V
• Mounting Type: Surface Mount
• Package / Case: 8-TDFN Exposed Pad
• Operating Temperature: -40°C ~ 85°C
• Current - Output / Channel: 70mA
• Internal Switch(s): Yes
• Efficiency: 86%
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Output: -

Typical Performace Curves
90
85
80
75
70
65
60
55
50
20.04
20.08
20.00
19.92
19.96
0
4.2V IN 4 LEDs OUT (15µH)
0
FIGURE 2. EFFICIENCY vs LED CURRENT
FIGURE 4. LOAD REGULATION (V
3.6V IN 4 LEDs OUT (22µH)
5
4.2V IN 4 LEDs OUT (22µH)
3.6V IN 4 LEDs OUT (15µH)
5
10
15
10
I
20
OUT
V
5
OUT
15
(mA)
(V)
4.2V IN 4 LEDs OUT (10µH)
25
3.6V IN 4 LEDs OUT (10µH)
40
35
30
25
20
15
10
5
0
30
20
0
IN
FIGURE 6. ILED vs PROGRAMMING CODES
R
SET
= 4V)
35
25
5
= 4.7Ω
40
10
30
45
ISL97632
CODE = DECIMAL
15
20
- 0.2
19.76
19.74
19.72
19.70
19.68
19.66
19.64
19.62
FIGURE 3. QUIESCENT CURRENT vs V
1.0
0.8
0.6
0.4
0.2
0
25
0
2.5
30
FIGURE 5. LINE REGULATION
3.0
1
35
3.5
2
V
IN
V
IN
(V)
4.0
(V)
3
4.5
IN
(ENAB = HI)
4
5.0
March 22, 2010
FN9239.3
5
5.5