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ISL97671AIRZ

Description
6-Channel SMBus/I2C or PWM Dimming LED Driver with Phase Shift Control; QFN20; Temp Range: -40° to 85°C
CategoryAnalog mixed-signal IC    Drivers and interfaces   
File Size2MB,28 Pages
ManufacturerRenesas Electronics Corporation
Websitehttps://www.renesas.com/
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ISL97671AIRZ Overview

6-Channel SMBus/I2C or PWM Dimming LED Driver with Phase Shift Control; QFN20; Temp Range: -40° to 85°C

ISL97671AIRZ Parametric

Parameter NameAttribute value
Brand NameIntersil
MakerRenesas Electronics Corporation
Parts packaging codeQFN
package instructionHVQCCN, LCC20,.12X.16,20
Contacts20
Reach Compliance Codecompliant
ECCN codeEAR99
Factory Lead Time17 weeks
data entry modeSERIAL
Interface integrated circuit typeLED DISPLAY DRIVER
JESD-30 codeR-PQCC-N20
JESD-609 codee3
length4 mm
Humidity sensitivity level3
Number of functions1
Number of segments6
Number of terminals20
Maximum operating temperature85 °C
Minimum operating temperature-40 °C
Package body materialPLASTIC/EPOXY
encapsulated codeHVQCCN
Encapsulate equivalent codeLCC20,.12X.16,20
Package shapeRECTANGULAR
Package formCHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
Peak Reflow Temperature (Celsius)260
power supply12 V
Certification statusNot Qualified
Maximum seat height1 mm
Maximum supply voltage26.5 V
Minimum supply voltage4.5 V
Nominal supply voltage12 V
surface mountYES
Temperature levelINDUSTRIAL
Terminal surfaceMatte Tin (Sn) - annealed
Terminal formNO LEAD
Terminal pitch0.5 mm
Terminal locationQUAD
Maximum time at peak reflow temperature30
width3 mm
DATASHEET
ISL97671A
6-Channel SMBus/I
2
C or PWM Dimming LED Driver with Phase Shift Control
The
ISL97671A
is a 6-Channel 45V dual dimming capable LED
driver that can be used with either SMBus/I
2
C or PWM signal
for dimming control. The ISL97671A can drive six channels of
LEDs from an input of 4.5V~26.5V to an output of up to 45V. It
can also operate from an input as low as 3V to an output of up
to 26.5V in bootstrap configuration (refer to
Figure 38 on
page 26).
The ISL97671A features optional channel phase shift control
to minimize the input/output ripple characteristics, and load
transients to improve efficiency and eliminate audible noise.
The device can also be configured for Direct PWM Dimming
with a minimum dimming duty cycle of 0.007% at 200Hz.
The ISL97671A headroom control circuit monitors the highest
LED forward voltage string for output regulation, to minimize
the voltage headroom and power loss in a typical multi-string
operation.
The ISL97671A is offered in a compact and thermally efficient
20 Ld QFN 4mmx3mm package.
FN7709
Rev.4.00
Sep 14, 2017
Features
• 6 x 50mA channels
• 4.5V to 26.5V input with 45V maximum output
• 3V (see
Figure 38 on page 26)
to 21V input with 26.5V
maximum output
• PWM dimming with phase shift control
• SMBus/I
2
C controlled PWM or DC dimming
• Direct PWM dimming
• PWM dimming linearity
- PWM dimming with adjustable dimming frequency and
duty cycle linear from 0.4% to 100% <30kHz
- Direct PWM dimming duty cycle linear from 0.007% to
100% at 200Hz
• Current matching ±0.7%
• 600kHz/1.2MHz selectable switching frequency
• Dynamic headroom control
• Fault protection
- String open/short-circuit, OVP, OTP, and optional output
short-circuit fault protection
• 20 Ld 4mmx3mm QFN package
Related Literature
• For a full list of related documents, visit our website
-
ISL97671A
product page
Applications
• Tablet PC to notebook displays LED backlighting
• LCD monitor LED backlighting
• Field sequential RGB LED backlighting
Typical Application Circuits
VIN = 4.5~26.5V
Q1 (OPTIONAL)
ISL97671A
1 FAULT
2 VIN
4 VDC
LX 20
OVP 16
45V*, 6 x 50mA
VIN = 4.5~26.5V
Q1 (OPTIONAL)
ISL97671A
1 FAULT
2 VIN
4 VDC
LX 20
OVP 16
45V*, 6 x 50mA
VIN = 4.5~26.5V
Q1 (OPTIONAL)
ISL97671A
1 FAULT
2 VIN
4 VDC
8 FPWM
7 SMBCLK/SCL
6 SMBDAT/SDA CH0 10
CH1 11
5 PWM
CH2 12
3 EN
CH3 13
17 RSET
9 AGND
CH4 14
CH5 15
COMP 18
LX 20
OVP 16
PGND 19
45V*, 6 x 50mA
PGND 19
7 SMBCLK/SCL
6 SMBDAT/SDA CH0 10
CH1 11
5 PWM
CH2 12
3 EN
CH3 13
17 RSET
8 FPWM
9 AGND
CH4 14
CH5 15
COMP 18
*VIN > 12V
PGND 19
7 SMBCLK/SCL
6 SMBDAT/SDA CH0 10
CH1 11
5 PWM
CH2 12
3 EN
CH3 13
17 RSET
8 FPWM
9 AGND
CH4 14
CH5 15
COMP 18
*VIN > 12V
*VIN > 12V
FIGURE 1A. SMBus/I
2
C CONTROLLED
DIMMING AND ADJUSTABLE
DIMMING FREQUENCY
FIGURE 1B. PWM DIMMING WITH PWM INPUT
AND ADJUSTABLE DIMMING
FREQUENCY
FIGURE 1. ISL97671A TYPICAL APPLICATION DIAGRAMS
FIGURE 1C. DIRECT PWM DIMMING
FN7709 Rev.4.00
Sep 14, 2017
Page 1 of 28

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ISL97671AIRZ ISL97671AIRZ-T ISL97671AIRZ-TK
Description 6-Channel SMBus/I2C or PWM Dimming LED Driver with Phase Shift Control; QFN20; Temp Range: -40° to 85°C 6-Channel SMBus/I2C or PWM Dimming LED Driver with Phase Shift Control; QFN20; Temp Range: -40° to 85°C 6-Channel SMBus/I2C or PWM Dimming LED Driver with Phase Shift Control; QFN20; Temp Range: -40° to 85°C
Brand Name Intersil Intersil Intersil
Parts packaging code QFN QFN QFN
Contacts 20 20 20
Reach Compliance Code compliant compliant compliant
JESD-30 code R-PQCC-N20 R-PQCC-N20 R-PQCC-N20
JESD-609 code e3 e3 e3
Humidity sensitivity level 3 3 3
Number of terminals 20 20 20
Maximum operating temperature 85 °C 85 °C 85 °C
Minimum operating temperature -40 °C -40 °C -40 °C
Package body material PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY
encapsulated code HVQCCN HVQCCN QCCN
Encapsulate equivalent code LCC20,.12X.16,20 LCC20,.12X.16,20 LCC20,.12X.16,20
Package shape RECTANGULAR RECTANGULAR RECTANGULAR
Package form CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE CHIP CARRIER
power supply 12 V 12 V 12 V
Certification status Not Qualified Not Qualified Not Qualified
Nominal supply voltage 12 V 12 V 12 V
surface mount YES YES YES
Temperature level INDUSTRIAL INDUSTRIAL INDUSTRIAL
Terminal surface Matte Tin (Sn) - annealed Matte Tin (Sn) - annealed Matte Tin (Sn) - annealed
Terminal form NO LEAD NO LEAD NO LEAD
Terminal pitch 0.5 mm 0.5 mm 0.5 mm
Terminal location QUAD QUAD QUAD
package instruction HVQCCN, LCC20,.12X.16,20 HVQCCN, LCC20,.12X.16,20 -
ECCN code EAR99 EAR99 -
Factory Lead Time 17 weeks - 17 weeks
data entry mode SERIAL SERIAL -
Interface integrated circuit type LED DISPLAY DRIVER LED DISPLAY DRIVER -
length 4 mm 4 mm -
Number of functions 1 1 -
Number of segments 6 6 -
Peak Reflow Temperature (Celsius) 260 260 -
Maximum seat height 1 mm 1 mm -
Maximum supply voltage 26.5 V 26.5 V -
Minimum supply voltage 4.5 V 4.5 V -
Maximum time at peak reflow temperature 30 30 -
width 3 mm 3 mm -
Base Number Matches - 1 1
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