isl97636 Intersil Corporation, isl97636 Datasheet - Page 9

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

Pinout
Pin Descriptions
PIN
1, 2
10
12
13
14
15
16
17
18
19
20
21
22
23
24
11
3
4
5
6
7
8
9
EN/PWMI
VLEVEL
FPWM
FAULT
COMP
NAME
PGND
PGND
RSET
GND
GND
OVP
VDC
IIN7
IIN6
IIN5
IIN4
IIN3
IIN2
IIN1
IIN0
VIN
LX
LX
TYPE
S
S
S
S
O
O
S
S
-
-
I
I
I
I
I
I
I
I
I
I
I
I
I
(I = Input, O = Output, S = Supply)
Analog GND
Not used. Leave floating and connect anything will have no effect on operation.
Not used. Leave floating and connect anything will have no effect on operation.
Analog GND and LED power return
Dual Functions: Enable Pin and PWM brightness control pin. DO NOT leave EN/PWMI floating. The device needs 40µs
for initial power-up Enable, then this pin can be applied with a PWM signal with off time no longer than 28ms.
Input 7 to current source, FB, and monitoring
Input 6 to current source, FB, and monitoring
Input 5 to current source, FB, and monitoring
Input 4 to current source, FB, and monitoring
Resistor connection for setting LED current, (see Equation 1 for calculating the ILEDpeak)
Input 3 to current source, FB, and monitoring
Input 2 to current source, FB, and monitoring
Input 1 to current source, FB, and monitoring
Input 0 to current source, FB, and monitoring
Overvoltage protection input
Power ground (LX Power return)
Power ground (LX Power return)
Input to boost switch
Input to boost switch
Fault disconnect switch
Boost compensation pin
Input voltage for the device and LED power
De-couple capacitor for internally generated supply rail. If 2.7V < VBL+ < 5.5V, apply VDC directly with a supply voltage
of 2.7V to 5.5V
9
PWMI/EN
VLEVEL
FPWM
GND
GND
GND
1
2
3
4
5
6
24
7
ISL97636
23
8
(24 LD QFN)
TOP VIEW
ISL97636
22
9
21
10
DESCRIPTION
11
20
12
19
18
17
16
15
14
13
PGND
PGND
OVP
IIN0
IIN1
IIN2
May 9, 2008
FN6570.0