ISL97632IRT18Z-TK Intersil, ISL97632IRT18Z-TK Datasheet - Page 3

• Manufacturer Part Number: ISL97632IRT18Z-TK
• Description: IC LED DRIVR WHITE BCKLGT 8-TDFN
• Manufacturer: Intersil
• Type: Backlight, White LEDr

Specifications of ISL97632IRT18Z-TK

• Topology: PWM, Step-Up (Boost)
• Number Of Outputs: 1
• Internal Driver: Yes
• Type - Primary: Automotive, Backlight
• Type - Secondary: White LED
• Frequency: 1.3MHz ~ 1.6MHz
• Voltage - Supply: 2.4 V ~ 5.5 V
• Mounting Type: Surface Mount
• Package / Case: 8-TDFN Exposed Pad
• Operating Temperature: -40°C ~ 85°C
• Current - Output / Channel: 50mA
• Internal Switch(s): Yes
• Efficiency: 86%
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Output: -

Block Diagram
Pin Descriptions
V
IN
NUMBER
(2.4V TO 5.5V)
PIN
CIN
1
2
3
4
5
6
7
8
SDIN
1.4MHZ OSCILLATOR AND RAMP
GM AMP
COMPENSATION
COMPARATOR
PWM
NAME
FBSW
VOUT
SDIN
GENERATOR
GND
PIN
VIN
EN
FB
LX
3
V
IN
AMPLIFIER
Ground Pin. Connect to local ground.
Input Supply Pin. Connect to the input supply voltage, the inductor and the input supply decoupling
capacitor.
Enable Pin. Connect to enable signal to turn-on or off the device. Active High.
Single-Wire XSD Digital Interface (1-Wire Interface).
Feedback Pin. Connect to the cathode of bottom LED and the sense resistor.
Optional FB Disconnect Switch.
Output Pin. Connect to the anode of the top LED and the output filter capacitor.
Switching Pin. Connect to inductor.
GM
CONTROLLER
PWM LOGIC
INTERFACE
SERIAL
EN
ISL97632
10mV to 186mV
CURRENT
SENSE
ISL97632
DRIVER
FET
L
DESCRIPTION
BANDGAP
REFERENCE
GENERATOR
LX
EN
FBSW
GND
V
FB
OUT
RSET
2 to 7 LEDs
March 22, 2010
C
OUT
FN9239.3