ISL97801ARZ Intersil, ISL97801ARZ Datasheet - Page 16

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

Specifications of ISL97801ARZ

• 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

Boost Mode Application Diagram
Boost Mode with Over Current Fault and LED Temperature Protections
Application Diagram
FIGURE 36. BOOST MODE APPLICATION WITH OVER CURRENT FAULT PROTECTION AND
V
BAT
16
V
BAT
LED TEMPERATURE PROTECTION
SENSOR
TEMP
V
LEVEL
FIGURE 35. BASIC BOOST 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
OVP
GND
ENL
VHI
FB
April 2, 2007
FN6428.1