ISL97671AIRZ-T Intersil, ISL97671AIRZ-T Datasheet - Page 3

• Manufacturer Part Number: ISL97671AIRZ-T
• Description: IC LED DRVR 6-CH BACKLIGHT 20QFN
• Manufacturer: Intersil
• Series: -r

Specifications of ISL97671AIRZ-T

• Constant Current: -
• Constant Voltage: -
• Topology: PWM, Step-Up (Boost)
• Number Of Outputs: 6
• Internal Driver: Yes
• Type - Primary: Automotive, Backlight
• Type - Secondary: RGB
• Frequency: 475kHz ~ 640kHz, 970kHz ~ 1.31MHz
• 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
• Other names: ISL97671AIRZ-TTR

Ordering Information
NOTES:
Pin Descriptions
ISL97671AIRZ
ISL97671AIRZ-EVALZ
1. Add “-T* suffix for tape and reel. Please refer to
2. These Intersil Pb-free plastic packaged products employ special
3. For Moisture Sensitivity Level (MSL), please see device information
SMBDAT/SDA*
SMBCLK/SCL*
PIN NAME
PART NUMBER
reel specifications.
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.
page for ISL97671A. For more information on MSL please see
techbrief TB363.
CH0, CH1
CH2, CH3
CH4, CH5
(Notes 1, 2, 3)
FPWM
COMP
FAULT
AGND
PGND
PWM
EPAD
RSET
VDC
OVP
VIN
EN
LX
10, 11,
12, 13,
14, 15
PIN #
16
17
18
19
20
1
2
3
4
5
6
7
8
9
671A
Evaluation Board
MARKING
TYPE
PART
I/O
O
S
S
S
O
S
O
I
I
I
I
I
I
I
3
Fault Disconnect Switch Gate Control.
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
drivers will be controlled by external PWM signal.
SMBus/I
be controlled by external PWM signal.
Set PWM dimming frequency, FPWM by connecting a resistor. When FPWM ties to VDC and SMBCLK/SMBDAT tie
to ground, the device will be in Direct PWM Dimming where the output follows the input frequency and duty cycle
without any digitization.
Analog Ground for precision circuits.
Input 0, Input 1, Input 2, Input 3, Input 4, 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.
No electrical connection but should be used to connect PGND and AGND. For example uses top plane as PGND and
bottom plane as AGND with vias on EPAD to allow heat dissipation and minimum noise coupling from PGND to
AGND operation.
(I = Input, O = Output, S = Supply, X = Don’t Care)
20 Ld 3x4 QFN
2
2
PACKAGE
(Pb-free)
C serial data input and output. When pins 6 and 7 are grounded or in logic 0’s for longer than 60ms, the
C serial clock input. When pins 6 and 7 are grounded or in logic 0’s for longer than 60ms, the drivers will
TB347
for details on
L20.3x4
DWG. #
ISL97671A
PKG.
Pin Configuration
SMBDAT/SDA
DESCRIPTION
FAULT
PWM
VDC
VIN
EN
1
2
3
4
5
6
20
7
(20 LD QFN)
ISL97671A
TOP VIEW
19
8
18
LED(peak)
9
17
10
).
16
15
14
13
12
11
OVP
CH5
CH4
CH3
CH2
CH1
March 24, 2011
FN7709.1