ISL97683IRTZ-TK Intersil, ISL97683IRTZ-TK Datasheet - Page 7

• Manufacturer Part Number: ISL97683IRTZ-TK
• Description: 3 Channel LED Driver, 16LD TQFN 3X3, T&R
• Manufacturer: Intersil
• Series: -r

Specifications of ISL97683IRTZ-TK

• Constant Current: -
• Constant Voltage: -
• Topology: PWM, Step-Up (Boost)
• Number Of Outputs: 3
• Internal Driver: Yes
• Type - Primary: Backlight
• Type - Secondary: -
• Frequency: 500kHz ~ 650kHz, 900kHz ~ 1.1MHz
• Voltage - Supply: 4 V ~ 26.5 V
• Voltage - Output: 45V
• Mounting Type: Surface Mount
• Package / Case: 16-WFQFN Exposed Pad
• Operating Temperature: -40°C ~ 85°C
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Typical Performance Curves
FIGURE 3. ISL97683 TYPICAL EFFICIENCY FOR 3V TO 4.2V IN A
FIGURE 5. ISL97683 TYPICAL EFFICIENCY FOR 5V
FIGURE 7. ISL97864 PWM vs PFM EFFICIENCY vs DC AT
90
80
70
60
50
40
30
20
10
90
80
70
60
50
93
88
83
78
73
68
63
58
0
0
0
0
3P7S, ILED = 20mA/CH SINGLE SUPPLY
CONFIGURATION AT F
ILED = 20mA/CH CONFIGURATION AT F
IN PWM MODE
V
IN
10
= 15V IN4P8S CONFIGURATION
1000k PWM V
20
20
3V
30
IN
5V
IN
40
3.7V
7
40
= 15V
DC (%)
DC (%)
DC (%)
IN
SW
50
50
1000k PFM V
= 600kHz IN PWM MODE
ISL97682, ISL97683, ISL97684
4.2V
60
60
IN
70
IN
80
= 15V
80
IN
SW
IN A 3P7S,
= 600kHz
90
100
100
100
FIGURE 4. ISL97683 TYPICAL EFFICIENCY FOR 3V TO 4.2V IN A
FIGURE 6. ISL97684 EFFICIENCY FOR 4P10S AT 20mA/CH AT
FIGURE 8. PFM vs PFM MODE FOR 4P8S vs V
87
86
85
84
83
85
80
75
70
65
60
55
50
95
90
85
80
75
70
0
0
0
3P7S, ILED = 20mA/CH CONFIGURATION AT
F
600kHz IN PWM MODE
SW
= 600kHz IN PWM MODE WITH V
5
20
1000k PFM 50%
3V
IN
10
10
600k PWM
40
DC (%)
DC (%)
3.7V
15
IN
1000k PWM 50%
60
20
20
4.2V
IN
IN
80
IN
25
AT 1MHz
SUPPLY = 5V
March 11, 2011
FN7689.0
100
30
30