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ISL97692IIZ-T

Description
LED Lighting Drivers 4 CH w/12-bit PWM dimming Single Cell Li-Ion Battery Powered
Categorysemiconductor    Other integrated circuit (IC)   
File Size2MB,32 Pages
ManufacturerIntersil ( Renesas )
Websitehttp://www.intersil.com/cda/home/
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ISL97692IIZ-T Overview

LED Lighting Drivers 4 CH w/12-bit PWM dimming Single Cell Li-Ion Battery Powered

ISL97692IIZ-T Parametric

Parameter NameAttribute value
Product CategoryLED Lighting Drivers
ManufacturerIntersil ( Renesas )
Factory Pack Quantity3000
DATASHEET
ISL97692, ISL97693, ISL97694A
Single or Multiple Cell Li-ion Battery Powered 4-Channel and 6-Channel
LED Drivers
The
ISL97692, ISL97693, ISL97694A
are Intersil’s highly
integrated 4- and 6-channel LED drivers for display
backlighting. These parts maximize battery life by featuring
only 1mA quiescent current, and by operating down to 2.4V
input voltage, with no need for higher voltage supplies.
The ISL97692 has four channels and provides 8-bit PWM
dimming with adjustable dimming frequency up to 30kHz. The
ISL97693 has six channels with Direct PWM dimming control.
The ISL97694A has 6 channels and provides 8-, 10-, or 12-bit
PWM dimming with adjustable dimming frequency up to
30kHz, 7.5kHz, or 1.875kHz, respectively, controlled with I
2
C
or PWM input.
The ISL97692 and ISL97694A feature phase shifting that may
be enabled optionally, providing an optimized phase delay
between channels. In the ISL97692 and ISL97694A, phase
shifting can multiply the effective dimming frequency by four
and six allowing above audio-band PWM dimming with 10-bit
dimming resolution.
The ISL97692, ISL97693, ISL97694A employ adaptive boost
architecture, which keeps the headroom voltage as low as
possible to maximize battery life while allowing ultra low
dimming duty cycle as low as 0.005% at 100Hz dimming
frequency in Direct PWM mode.
The ISL97692, ISL97693, ISL97694A incorporate extensive
protection functions including string open and short circuit
detections, OVP, and OTP.
The ISL97692 and ISL97693 are offered in the 16 Ld 3x3mm
TQFN package, and a 16 bump 1.7x1.7mm WLCSP for the
ISL97692. The ISL97694A is offered in the 20 Ld 3x4mm TQFN
package. All parts operate in the ambient temperature range of
-40°C to +85°C.
FN7839
Rev.6.00
Sep 8, 2017
Features
• 2.4V minimum input voltage, supports single cell applications
• 4 channels, up to 40mA each (ISL97692) or 6 channels, up to
30mA each (ISL97693, ISL97694A)
• 90% efficient at 6P5S, 3.7V and 20mA (ISL97693, ISL97694A)
• Low 0.8mA quiescent current
• PWM dimming control with internally generated clock
- 8-bit resolution with adjustable dimming frequency up to
30kHz (ISL97692, ISL97694A)
- 12-bit resolution with adjustable dimming frequency up to
1.875kHz (ISL97694A)
- Optional automatic channel phase shift (ISL97692,
ISL97694A)
- Linear dimming from 0.025%~100% up to 5kHz or
0.4%~100% up to 30kHz (ISL97692, ISL97694A)
• Direct PWM dimming with 0.005% minimum duty cycle at
100Hz
• ±2.5% output current matching
• Adjustable switching frequency from 400kHz to 1.5MHz
Applications
• Tablet, Notebook PC and Smart Phone Displays LED
Backlighting
Related Literature
• For a full list of related documents, visit our website
-
ISL97692, ISL97693, ISL97694A
product pages
VIN: 2.4V~5.5V
4.7µF
L1
10µH
D1
4.7µF 4.7µF
VOUT: 24.5V, 6 x 20mA
10
10
VIN
1µF
COMP
LX
OVP
100pF 470k
1
15nF
12k
ISET
53k
AGND
SDA/PWMI
SCL
EN
FPWM
291k
FSW
CH1
CH2
CH3
CH4
CH5
CH6
143k
PGND
ILED (mA)
ISL97694A
2.2nF
23.7k
0.1
0.01
f
PWM
: 200Hz
0.001
f
PWM
: 100Hz
0.0001
0.001
0.01
0.1
1
INPUT DIMMING DUTY CYCLE (%)
10
FIGURE 1. ISL97694A TYPICAL APPLICATION DIAGRAM
FIGURE 2. ULTRA LOW PWM DIMMING LINEARITY
FN7839 Rev.6.00
Sep 8, 2017
Page 1 of 32

ISL97692IIZ-T Related Products

ISL97692IIZ-T ISL97692IRTZ-TK ISL97694AIRTZ-T
Description LED Lighting Drivers 4 CH w/12-bit PWM dimming Single Cell Li-Ion Battery Powered LED Lighting Drivers 4CH w/12Bit Dimming Li-Ion LED Driver LED Lighting Drivers 6CH w/12Bit Dimming Li-Ion LED Driver
Product Category LED Lighting Drivers LED Lighting Drivers LED Lighting Drivers
Manufacturer Intersil ( Renesas ) Intersil ( Renesas ) Intersil ( Renesas )
Factory Pack Quantity 3000 1000 6000
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