ISL97678IRZ Просмотр технического описания (PDF) - Renesas Electronics
Номер в каталоге
Компоненты Описание
Список матч
ISL97678IRZ Datasheet PDF : 17 Pages
| |||
ISL97678
Pin Configuration
ISL97678
(32 LD 5X5 QFN)
TOP VIEW
32 31 30 29 28 27 26 25
PGND 1
24 NC
AGND 2
23 OVP
AGND 3
22 PGND
PWM 4
AGND 5
EXPOSED THERMAL PAD
21 LX
20 LX
AGND 6
19 PGND
AGND 7
18 VDC
AGND 8
17 EN
9 10 11 12 13 14 15 16
Pin Descriptions
(I = Input, O = Output, S = Supply)
PIN
NAME
TYPE
1, 19, 22
PGND
S
2, 3, 5, 6, 7, AGND
S
8, 9, 15
4
PWM
I
10
VLOGIC
O
11
FSW
I
12
FPWM
I
13
RSET
I
14
COMP
O
16
VIN
S
17
EN
I
18
VDC
S
20, 21
LX
O
23
OVP
I
24
NC
I/O
25 ~ 32 CH1 ~ CH8
I
Power Ground.
Analog Ground.
DESCRIPTION
PWM Brightness Control.
Internal 2.5V Logic Bias Regulator. Need Decoupling Capacitor for Regulation.
When RFSW is 100k, fSW is 500kHz.
When RFSW is 33k, fSW is 1.5MHz.
When RFPWM is 333k, FPWM is 200Hz.
When RFPWM is 3.3k, FPWM is 20kHz.
Resistor Connection for Setting LED Current.
Boost compensation.
Main Power.
Enable
Internal 5V Analog Bias Regulator. Needs Decoupling Capacitor for Regulation.
Boost MOSFET Drain Terminal Switching Node.
Overvoltage Protection Input as well as Output Voltage FB Monitoring.
No Connect
LED Driver PWM Dimming Monitoring.
FN6998 Rev.3.00
Sep 8, 2017
Page 4 of 17
Share Link: 