ISL97801ARZ-TK Intersil, ISL97801ARZ-TK Datasheet - Page 17

• Manufacturer Part Number: ISL97801ARZ-TK
• Description: IC LED DRIVER AUTOMOTIVE 20-QFN
• Manufacturer: Intersil
• Type: Automotiver

Specifications of ISL97801ARZ-TK

• Topology: PWM, Step-Down (Buck), Step-Up (Boost)
• Number Of Outputs: 1
• Internal Driver: Yes
• Type - Primary: Automotive, Backlight
• Frequency: 850kHz ~ 1.15MHz
• Voltage - Supply: 2.7 V ~ 16 V
• Voltage - Output: 32V
• Mounting Type: Surface Mount
• Package / Case: 20-VQFN Exposed Pad, 20-HVQFN, 20-SQFN, 20-DHVQFN
• Operating Temperature: -40°C ~ 105°C
• Current - Output / Channel: 1A
• Internal Switch(s): Yes
• Efficiency: 90%
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: ISL97801ARZ-TK

Typical Buck Application Diagram
Buck Mode with Over Current Fault and LED Temperature Protections
Application Diagram
Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design, software and/or specifications at any time without
notice. Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and
reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result
from its use. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries.
All Intersil U.S. products are manufactured, assembled and tested utilizing ISO9000 quality systems.
Intersil Corporation’s quality certifications can be viewed at www.intersil.com/design/quality
For information regarding Intersil Corporation and its products, see www.intersil.com
V
FIGURE 38. BUCK MODE WITH OVER CURRENT FAULT AND LED TEMPERATURE
BAT
V
17
BAT
SENSOR
TEMP
V
LEVEL
PROTECTIONS APPLICATION
FIGURE 37. BASIC BUCK APPLICATION CIRCUIT
EN
(0V TO 2.5V)
EN
VIN
FAULT
VBAT
VDC
TEMP
TMAX
EN/PWM
MODE
LEVEL
BUCK/BOOSTN
ISL97801
VIN
FAULT
VBAT
VDC
TEMP
TMAX
EN/PWM
MODE
LEVEL
BUCK/BOOSTN
SWD1
SWD2
SWS1
SWS2
GND
OVP
ENL
VHI
FB
SWD1
SWD2
SWS1
SWS2
GND
ENL
OVP
VHI
FB
April 2, 2007
FN6428.1