ISL97672 Intersil, ISL97672 Datasheet - Page 5

• Manufacturer Part Number: ISL97672
• Description: 6-Channel LED Driver
• Manufacturer: Intersil

Electrical Specifications
REGULATOR
BOOST
CURRENT SOURCES
FAULT DETECTION
Temp_shtdwn
PARAMETER
IVDC_STBY
Temp_Hyst
ΔI
I
V
SWILimit
Eff_peak
LX_leakage
I
r
ENLow
OUT
headroom
I
t
Dmax
LEDmax
VLDO
V
IVDC
DS(ON)
Dmin
ENHi
ENLow
MATCH
VDC
I
VSC
SS
RSET
ACC
f
f
S
S
/ΔV
IN
LDO Output Voltage
Standby Current
Active 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
5
DESCRIPTION
All specifications below are tested at T
otherwise noted. Boldface limits apply over the operating temperature range,
-40°C to +85°C. (Continued)
ISL97672
V
EN = 0V
EN = 5V
V
T
100% LED Duty Cycle
V
each, L = 10µH with DCR
101mΩ, T
V
each, L = 10µH with DCR
101mΩ, T
FSW = 600kHz
FSW = 1.2MHz
FSW = 600kHz
FSW = 1.2MHz
RFSW = 200kΩ
RFSW = 33kΩ
LX = 45V, EN = 0
R
(I
I
T
R
V
Fsw = 1.2MHz,
T
PWM Dimming = 100%
LED
A
A
A
IN
IN
IN
IN
SET
IN
SET
OUT
= +25°C
= +25°C
= +25°C
= 12V, 72 LEDs, 20mA
= 12V, 60 LEDs, 20mA
> 6V
> 5.5V, 20mA
= 12V, V
= 20mA
= 20.1kΩ
=20.1kΩ
= 20mA)
CONDITION
A
A
A
= +25°C
= +25°C
= 25°C; V
OUT
= 45V,
IN
= 12V, EN = 5V, R
(Note 8)
1.312
4.55
MIN
175
-1.5
1.8
1.5
1.2
5.2
90
81
±0.7
TYP
30.5
92.9
90.8
1.50
1.22
5.85
235
200
500
150
4.8
2.0
0.1
20
40
23
SET
5
7
www.DataSheet4U.com
= 20.1kΩ, unless
(Note 8) UNIT
±1.0
+1.5
MAX
1.69
1.24
200
235
300
0.5
9.5
2.7
6.6
17
10
5
5
June 24, 2010
FN7632.0
MHz
kHz
mΩ
mA
mV
mV
mV
mA
ms
ms
µA
µA
°C
°C
%
%
%
%
%
%
%
%
%
V
V
V
A
V