ISL97675IRZ Intersil, ISL97675IRZ Datasheet - Page 2

• Manufacturer Part Number: ISL97675IRZ
• Description: IC LED DVR PWM CTRL 4CH 20QFN
• Manufacturer: Intersil
• Type: Backlight, White LEDr

Specifications of ISL97675IRZ

• Topology: PWM, Step-Up (Boost)
• Number Of Outputs: 4
• Internal Driver: Yes
• Type - Primary: Backlight
• Frequency: 600kHz, 1.2MHz
• Voltage - Supply: 4.5 V ~ 26 V
• Voltage - Output: 45V
• Mounting Type: Surface Mount
• Package / Case: 20-VQFN
• Operating Temperature: -40°C ~ 85°C
• Current - Output / Channel: 30mA
• Internal Switch(s): Yes
• Efficiency: 92%
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Block Diagram
FPWM/DirectPWM
FSW/
PHASESHIFT
PWM
VIN* = 4.5V~26V
EN
COMP
VDDIO
ISET
GND
VIN
DETECT
FSW
OSC &
COMP
RAMP
REG
DIRECTPWM
DIGITIZER
DETECT
PHASE
SELECT
8-BIT
+
-
SELECT
PHASE
REF VSC
REF OVP
4.75V BIAS
AMP
GM
CONTROLLER
GEN
REF
SHIFT &
PHASE
PWM
Σ = 0
8-BIT
VSET
DAC
IMAX
FAULT
DRV
FET
FAULT
HEADROOM
ILIMIT
CONTROL
DYNAMIC
OPTIONAL PFET
ISL97675
LOGIC
HIGHEST VF
+
-
10µH/3A
DETECT
STRING
O/P SHORT
DRIVER
FET
FPO
+
-
OPEN CKT, SHORT CKT
1
+
-
SW
DETECTS
OVP
SHUTDOWN
SENSOR
2
TEMP
4.7µF/50V
4
FB1
FB2
FB4
OVP
PGND
45V*/30mA PER STRING
* V
IN
48 (4x12) LEDS
≥ 6V