ISL97673IRZ-TK Intersil, ISL97673IRZ-TK Datasheet - Page 6

• Manufacturer Part Number: ISL97673IRZ-TK
• Description: IC LED DVR PWM CTRL 6CH 20QFN
• Manufacturer: Intersil

Specifications of ISL97673IRZ-TK

• Topology: PWM, Step-Up (Boost)
• Number Of Outputs: 6
• Internal Driver: Yes
• Type - Primary: Automotive, Backlight
• Type - Secondary: RGB, White LED
• Frequency: 600kHz, 1.2MHz
• Voltage - Supply: 4.5 V ~ 26.5 V
• Voltage - Output: *
• Mounting Type: Surface Mount
• Package / Case: 20-VFQFN Exposed Pad
• Operating Temperature: -40°C ~ 85°C
• Current - Output / Channel: 40mA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Electrical Specifications
BOOST
FAULT DETECTION
CURRENT SOURCES
PWM GENERATOR
Temp_shtdwn Temperature Shutdown Threshold
PARAMETER
ILX_leakage
Temp_Hyst
ΔI
V
PWMACC
Eff_peak
SW
OVP
I
r
OUT
f
f
headroom
I
V
FPWM
LEDmax
DS(ON)
V
D
OSC_hi
OSC_lo
D
MATCH
I
V
VIH
OVPlo
VIL
RSET
SS
ACC
MAX
MIN
ILimit
SC
/ΔV
fault
IN
Boost FET Current Limit
Internal Boost Switch ON-resistance
Soft-start
Peak Efficiency
Line Regulation
Boost Maximum Duty Cycle
Boost Minimum Duty Cycle
Lx Frequency High
Lx Frequency Low
Lx Leakage Current
Short Circuit Threshold Accuracy
Temperature Shutdown Hysteresis
Overvoltage Limit on OVP Pin
OVP Short Detection Fault Level
DC Channel-to-Channel Current Matching
Current Accuracy
Dominant Channel Current Source Headroom at
FBx Pin
Voltage at RSET Pin
Maximum LED Current per Channel
Guaranteed Range for PWMI Input Low Voltage
Guaranteed Range for PWMI Input High Voltage
PWMI Input Frequency Range
PWM Input Accuracy
6
DESCRIPTION
All specifications below are tested at T
unless otherwise noted. Boldface limits apply over the operating temperature range,
-40°C to +85°C. (Continued)
ISL97673
FSW = 1, 600kHz
T
100% LED Duty Cycle
V
each, L = 10µH with DCR
101mΩ, T
V
each, L = 10µH with DCR
101mΩ, T
FSW = 1, 600kHz
FSW = 0, 1.2MHz
FSW = 1, 600kHz
FSW = 0, 1.2MHz
FSW = 0, 1.2MHz
LX = 45V, EN = 0
Reg0x08, SC[1:0] = 01
Reg0x08, SC[1:0] = 10
Reg0x08, SC[1:0] = 11
R
Reg0x00 = 0xFF
(I
I
T
R
V
Fsw=1.2MHz, T
LED
A
A
IN
IN
SET
SET
IN
OUT
= +25°C
= +25°C
= 12V, 72 LEDs, 20mA
= 12V, 60 LEDs, 20mA
= 12V, V
= 20mA
= 20.1kΩ,
= 20.1kΩ
= 20mA)
CONDITION
A
= +25°C; V
A
A
= +25°C
= +25°C
OUT
A
= 45V,
= +25°C
IN
= 12V, EN/PWM = 5V, R
(Note 8)
0.97
3.15
1.19
MIN
-1.5
475
200
1.5
4.2
5.2
1.2
1.5
90
81
±0.7
92.9
90.8
1.14
5.85
1.22
TYP
235
600
150
400
500
2.0
0.1
3.6
4.8
23
40
8
7
SET
(Note 8)
30,000
±1.0
+1.5
MAX
1.31
1.25
1.24
VDD
640
300
4.3
5.4
6.6
0.8
2.7
9.5
= 20.1kΩ,
10
17
June 24, 2010
FN7633.0
UNIT
MHz
kHz
mΩ
mV
mV
mV
mA
bits
ms
µA
°C
°C
Hz
%
%
%
%
%
%
%
A
V
V
V
V
V
V