ISL97672AIRZ Intersil, ISL97672AIRZ Datasheet - Page 5

• Manufacturer Part Number: ISL97672AIRZ
• Description: 6-Ch LED Driver With PWM Dimming. Vsc 7.5V Min
• Manufacturer: Intersil
• Series: -r

Specifications of ISL97672AIRZ

• Constant Current: -
• Constant Voltage: -
• Topology: PWM, Step-Up (Boost)
• Number Of Outputs: 6
• Internal Driver: Yes
• Type - Primary: Backlight
• Type - Secondary: -
• Frequency: 200kHz ~ 1.5MHz
• Voltage - Supply: 4.5 V ~ 26.5 V
• Voltage - Output: 45V
• Mounting Type: Surface Mount
• Package / Case: 20-VFQFN Exposed Pad
• Operating Temperature: -40°C ~ 85°C
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Electrical Specifications
REGULATOR
BOOST
CURRENT SOURCES
FAULT DETECTION
Temp_shtdwn
PARAMETER
IVDC_STBY
Temp_Hyst
ΔI
I
V
FLAG_ON
Eff_peak
LX_leakage
SW
I
VOVPlo
OUT
headroom
r
I
EN
t
LEDmax
VLDO
V
DS(ON)
D
MATCH
ENLow
D
EN
VDC
I
VSC
RSET
SS
ACC
max
f
f
min
ILimit
Low
/ΔV
S
S
Hi
IN
LDO Output Voltage
Standby Current
VDC LDO Droop Voltage
Guaranteed Range for EN Input Low Voltage
Guaranteed Range for EN Input High Voltage
EN Low Time Before Shut-down
Boost FET Current Limit
Internal Boost Switch ON-Resistance
Soft-start
Peak Efficiency
Line Regulation
Boost Maximum Duty Cycle
Boost Minimum Duty Cycle
Minimum Switching Frequency
Maximum Switching Frequency
LX Leakage Current
Channel-to-Channel Current Matching
Current Accuracy
Dominant Channel Current Source Headroom
at IIN Pin
Voltage at RSET Pin
Maximum LED Current per Channel
Short Circuit Threshold
Temperature Shutdown Threshold
Temperature Shutdown Hysteresis
Overvoltage Limit on OVP Pin
Fault Flag
5
DESCRIPTION
All specifications are tested at T
ISL97672A
A
V
EN = 0V
V
T
100% LED Duty Cycle
V
each, L = 10µH with DCR
101mΩ, T
V
each, L = 10µH with DCR
101mΩ, T
F
F
F
F
R
R
LX = 45V, EN = 0
R
(I
I
T
R
V
F
PWM Dimming = 100%
When Fault Occurs,
I
= +25°C, V
LED
PULLUP= 4mA
A
A
IN
IN
IN
IN
SW
SW
SW
SW
IN
SW
OUT
FSW
FSW
SET
SET
= +25°C
= +25°C
> 6V
> 5.5V, 20mA
= 12V, 72 LEDs, 20mA
= 12V, 60 LEDs, 20mA
= 12V, V
= 20mA
= 600kHz
= 1.2MHz
= 600kHz
= 1.2MHz
= 1.2MHz, T
=20.1kΩ
= 20.1kΩ
= 20mA)
= 200kΩ
= 33kΩ
CONDITION
A
A
IN
= +25°C
= +25°C
OUT
= 12V, EN = 5V, R
= 45V,
A
= +25°C
SET
= 20.1kΩ, unless otherwise noted.
(Note 8)
1.312
4.55
1.19
MIN
175
-1.5
1.8
1.5
1.2
7.5
90
81
30.5
1.50
±0.7
1.22
92.9
90.8
235
200
500
150
TYP
4.8
2.0
0.1
8.2
0.4
20
50
23
7
(Note 8)
MAX
1.69
±1.0
+1.5
1.24
1.25
200
300
235
0.5
2.7
9.5
17
10
5
5
May 2, 2011
FN7710.2
UNIT
MHz
mΩ
kHz
mV
mV
mA
ms
ms
µA
µA
°C
°C
%
%
%
%
%
%
%
%
%
V
V
V
A
V
V
V
V