ISL97801ARZ Intersil, ISL97801ARZ Datasheet - Page 10

• 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

Functional Block Diagram
BOOSTN
BUCK/
EN/PWM
LEVEL
MODE
GND
V
REF
DC
2.7V-16V
LIGHT CONTROL
MODE CONTROL
CHARGE PUMP
START-UP
HALT
POR
V
EN O/P
START
VBAT
V
FAULT CONTROL
COMPENSATION
TEMP
TEMPERATURE
START
AND TIMER
FAULT
LEVEL (T)
TMAX
FIGURE 28. ISL97801 BLOCK DIAGRAM
HALT
R
HALT
CLK
AMP
VIN
PWM CONTROL
AND CURRENT
LDO AND REF
INNER LOOP
CURRENT
SENSE
LOAD
LIMIT
VDC
REF
FET
CURRENT
SENSE
EN O/P
V
DC
VHI
CLOCK AND RAMP
CLK
GENERATOR
R
ISL97801
AMP
SWD2
SWD1
SWS1
SWS2
ENL
FB
OVP
L