isl97636 Intersil Corporation, isl97636 Datasheet - Page 3

• Manufacturer Part Number: isl97636
• Description: 8-channel Led Driver
• Manufacturer: Intersil Corporation

Block Diagram
VBL+ = 6V TO 24V
PWMI/EN
COMP
RSET
GND
VDC
OSC AND
RAMP
COMP
REG
VIN
VIN
GENERATOR
FAULT DETECT
3
+
+
-
PWM
AMP
GM
GENERATOR
REFERENCE
Σ
IMAX
FAULT
FAULT DETECT
= 0
ISL97636
FIGURE 1. ISL97636 BLOCK DIAGRAM
ILIMIT
PWM/OC/SC
HIGHEST VF
LOGIC
DETECT
ISL97636
STRING
+
+
-
-
O/P SHORT
DRIVER
FET
+
+
-
-
FAULT DETECT
DETECT
OC, SC
DETECT
OC, SC
LX
LX
OVP
IIN0
IIN0
IIN7
FAULT/DETECT
SENSOR
TEMP
(8 x 9 = 72 LEDS)
34.5V, 30mA PER STRING
PGND
May 9, 2008
FN6570.0