ISL97671IRZ-T Intersil, ISL97671IRZ-T Datasheet - Page 2

• Manufacturer Part Number: ISL97671IRZ-T
• Description: IC LED DVR PWM CTRL 6CH 20QFN
• Manufacturer: Intersil

Specifications of ISL97671IRZ-T

• 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
• 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
• Voltage - Output: -

Block Diagram
FIGURE 2. ISL97671 TYPICAL APPLICATION DIAGRAM WITH EXTERNAL PWM SIGNAL CONTROL
SMBDAT/SDA
SMBCLK/SCL
EN
PWM
V
IN
= 4.5V TO 26.5V
V
COMP
AGND
RSET
IN
f
VDC
PWM
= 4.5~26.5V
2
LED PWM
CONTROL
OSC AND
REG
COMP
RAMP
VIN
VIN
SMBUS/I
INTERFACE
AND PWM
CONTROl
LOGIC
+
+
-
-
2
AMP
C
GM
PWM BRIGHTNESS CONTROL
DC BRIGHTNESS CONTROL
FIGURE 3. ISL97671 BLOCK DIAGRAM
GENERATOR
DEVICE CONTROL
Σ = 0
REFERENCE
IDENTIFICATION
CONFIGURATION
IMAX ILIMIT
FAULT/STATUS
FAULT
FAULT/STATUS
REGISTERS
17
1
2
4
7
6
5
3
8
9
REGISTER
FAULT
VIN
VDC
SMBCLK/SCL
SMBDAT/SDA
PWM
EN
RSET
FPWM
AGND
ISL97671
ISL97671
HIGHEST VF
LOGIC
STRING
DETECT
PWM/OC/SC
COMP
DC
PGND 19
OVP
CH0
CH1
CH2
CH3
CH4
CH5
+
+
-
-
LX 20
ISL97671
16
10
11
12
13
14
15
18
DRIVER
FET
V
+
+
OUT
-
-
FAULT/STATUS
DETECT
OC, SC
REGISTER
= 45V*, 40mA PER STRING
DETECT
OC, SC
LX
LX
OVP
CH0
CH5
FAULT/STATUS
REGISTER
SENSOR
TEMP
*V
IN
(6 x 13 = 78 EDs)
45V*, 40mA PER STRING
> 12V
*V
PGND
IN
> 12V
June 24, 2010
FN7631.0