ISL97636 Просмотр технического описания (PDF) - Intersil
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ISL97636 Datasheet PDF : 18 Pages
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Pinout
ISL97636
ISL97636
(24 LD QFN)
TOP VIEW
24 23 22 21 20 19
GND 1
18 PGND
GND 2
17 PGND
FPWM 3
16 OVP
VLEVEL 4
15 IIN0
GND 5
14 IIN1
PWMI/EN 6
13 IIN2
7 8 9 10 11 12
Pin Descriptions (I = Input, O = Output, S = Supply)
PIN NAME TYPE
DESCRIPTION
1, 2 GND
S Analog GND
3
FPWM
- Not used. Leave floating and connect anything will have no effect on operation.
4 VLEVEL - Not used. Leave floating and connect anything will have no effect on operation.
5
GND
S Analog GND and LED power return
6 EN/PWMI I 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.
7
IIN7
I Input 7 to current source, FB, and monitoring
8
IIN6
I Input 6 to current source, FB, and monitoring
9
IIN5
I Input 5 to current source, FB, and monitoring
10
IIN4
I Input 4 to current source, FB, and monitoring
11
RSET
I Resistor connection for setting LED current, (see Equation 1 for calculating the ILEDpeak)
12
IIN3
I Input 3 to current source, FB, and monitoring
13
IIN2
I Input 2 to current source, FB, and monitoring
14
IIN1
I Input 1 to current source, FB, and monitoring
15
IIN0
I Input 0 to current source, FB, and monitoring
16
OVP
I Overvoltage protection input
17 PGND S Power ground (LX Power return)
18 PGND S Power ground (LX Power return)
19
LX
I Input to boost switch
20
LX
I Input to boost switch
21 FAULT O Fault disconnect switch
22 COMP O Boost compensation pin
23
VIN
S Input voltage for the device and LED power
24
VDC
S 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
FN6570.0
May 9, 2008
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