ISL97801ARZ-T Intersil, ISL97801ARZ-T Datasheet - Page 6
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ISL97801ARZ-T
Manufacturer Part Number
ISL97801ARZ-T
Description
IC LED DRIVER AUTOMOTIVE 20-QFN
Manufacturer
Intersil
Type
Automotiver
Datasheet
1.ISL97801ARZ-TK.pdf
(19 pages)
Specifications of ISL97801ARZ-T
Topology
PWM, Step-Down (Buck), Step-Up (Boost)
Number Of Outputs
1
Internal Driver
Yes
Type - Primary
Automotive, Backlight
Frequency
850kHz ~ 1.15MHz
Voltage - Supply
2.7 V ~ 16 V
Voltage - Output
32V
Mounting Type
Surface Mount
Package / Case
20-VQFN Exposed Pad, 20-HVQFN, 20-SQFN, 20-DHVQFN
Operating Temperature
-40°C ~ 105°C
Current - Output / Channel
1A
Internal Switch(s)
Yes
Efficiency
90%
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ISL97801ARZ-TK
Manufacturer:
Intersil
Quantity:
900
Part Number:
ISL97801ARZ-TK
Manufacturer:
INTERSIL
Quantity:
20 000
Typical Performance Curves
FIGURE 13. 5 LEDs LINE REGULATION OF PWM DUTY
400
350
300
250
200
150
100
50
41
40
39
38
37
36
35
34
8 LEDs
I
0
FIGURE 15. LED CURRENT vs V
LED
0
6
RSET = 0.5Ω
DUTY CYCLE = 100%
5 LEDs
I
DUTY CYCLE = 10%
LEDpeak
FIGURE 17. START-UP WAVEFORMS
= 350mA
CYCLE OF 10%
10% @ 100Hz
8
0.2
= 380mA
3 LED
10
5 LED
0.4
V
LEVEL
6
V
10% @ 10kHz
IN
12
(V)
(V)
0.6
14
LEVEL
(Continued)
0.8
8 LED
BIAS
16
18
1.0
ISL97801
FIGURE 14. 3 LEDs LINE REGULATION OF PWM DUTY
FIGURE 16. QUIESCENT CURRENT (NON-SWITCHING)
0.0001
0.001
0.01
FIGURE 18. START-UP WAVEFORMS ZOOM-IN
42
41
40
39
38
37
36
35
34
33
32
0.1
8 LEDs
I
LED
4
6
3 LEDs
I
DUTY CYCLE = 10%
LEDpeak
EN/PWM = 0
V
T
= 350mA
CYCLE OF 10%
LEVEL
A
= +25°C
5
8
= 1V
= 380mA
6
10
V
IN
V
PWM @ 10kHz
7
PWM @ 100Hz
IN
12
(V)
(V)
8
14
9
16
April 2, 2007
FN6428.1
10
18