ISL97671IRZ-T Intersil, ISL97671IRZ-T Datasheet - Page 3

• 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: -

Ordering Information
NOTES:
Pin Descriptions
ISL97671IRZ
ISL97671IRZ-EVAL Evaluation Board
SMBDAT/SDA*
1. Add “-T” or “-TK” suffix for tape and reel. Please refer to
2. These Intersil Pb-free plastic packaged products employ
3. For Moisture Sensitivity Level (MSL), please see device
SMBCLK/SCL*
PART NUMBER
PIN NAME
(Notes 1, 2)
TB347
special Pb-free material sets, molding compounds/die
attach materials, and 100% matte tin plate plus anneal
(e3 termination finish, which is RoHS compliant and
compatible with both SnPb and Pb-free soldering
operations). Intersil Pb-free products are MSL classified at
Pb-free peak reflow temperatures that meet or exceed the
Pb-free requirements of IPC/JEDEC J STD-020.
information page for ISL97671. For more information on
MSL please see techbrief TB363.
FAULT
FPWM
AGND
COMP
PGND
RSET
PWM
VDC
CH0
CH1
CH2
CH3
CH4
CH5
OVP
VIN
EN
LX
for details on reel specifications.
PIN # TYPE
10
11
12
13
14
15
16
17
18
19
20
1
2
3
4
5
6
7
8
9
7671
MARKING
PART
I/O
O
O
O
S
S
S
S
I
I
I
I
I
I
I
I
I
I
I
I
3
Fault disconnect switch.
Input voltage for the device and LED power.
The device needs 4ms for initial power-up enable. It will be disabled if it is not biased for longer
than 28ms.
De-couple capacitor for internally generated supply rail.
PWM brightness control pin or DPST control input.
SMBus/I
than 60ms, the drivers will be controlled by external PWM signal.
SMBus/I
the drivers will be controlled by external PWM signal.
Set PWM dimming frequency, FPWM by connecting a resistor. See the “PWM Dimming Frequency
Adjustment” section for resistor calculation.
Analog Ground for precision circuits.
Input 0 to current source, FB, and monitoring.
Input 1 to current source, FB, and monitoring.
Input 2 to current source, FB, and monitoring.
Input 3 to current source, FB, and monitoring.
Input 4 to current source, FB, and monitoring.
Input 5 to current source, FB, and monitoring.
Overvoltage protection input.
Resistor connection for setting LED current, (see Equation 2 for calculating the I
Boost compensation pin.
Power ground
Input to boost switch.
(I = Input, O = Output, S = Supply)
20 Ld 4x3 QFN
PACKAGE
(Pb-free)
2
2
C serial data input and output. When pins 6 and 7 are grounded or in logic 0’s for longer
C serial clock input. When pins 6 and 7 are grounded or in logic 0’s for longer than 60ms,
L20.3x4
DWG. #
PKG.
ISL97671
Pin Configuration
SMBDAT/SDA*
DESCRIPTION
FAULT
PWM
VDC
VIN
EN
1
2
3
4
5
6
20
7
(20 LD QFN)
ISL97671
TOP VIEW
19
8
18
9
17
10
16
15
14
13
12
11
OVP
CH5
CH4
CH3
CH2
CH1
LED(peak)
June 24, 2010
).
FN7631.0