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ISL97686 Fiches technique(PDF) 3 Page - Renesas Technology Corp

No de pièce ISL97686
Description  4-Channel LED Driver with Independent Channel Control for Dynamic Dimming
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Fabricant  RENESAS [Renesas Technology Corp]
Site Internet  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

ISL97686 Fiches technique(HTML) 3 Page - Renesas Technology Corp

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ISL97686
FN7953 Rev.1.00
Page 3 of 22
Sep 19, 2017
Pin Configurations
ISL97686
(28 LD 5x5 TQFN)
TOP VIEW
ISL97686
(28 LD SOIC)
TOP VIEW
1
2
3
4
5
6
7
10
11
12
13
14
15
28
27
26
17
16
19
18
21
20
EN_VSYNC
ISET1
COMP
OSC
VDC
VLOGIC
OVP
ISET2
89
CLK
22
25
24
23
PWM_SET/PLL
SDI
SDO
NC
EXPOSED
THERMAL PAD
CS
1
2
3
4
5
6
7
10
11
12
13
14
15
28
27
26
17
16
19
18
21
20
CH3
CH4
GD
PGND
SLEW
CSEL
CH2
CH1
EN_VSYNC
NC
ISET1
COMP
VIN
OSC
VDC
PGND
AGND
EN
VLOGIC
OVP
ISET2
PGND
CS
8
9
CLK
22
25
24
23
PWM_SET/PLL
SDI
SDO
CS
Pin Descriptions
TQFN SOIC
PIN NAME
PIN TYPE
PIN DESCRIPTION
1
5
SDO
I
Serial data output to next driver
26
CS
IChip select
37
CLK
I
Serial clock
4
8
SDI
I
Serial data input
5
9
VLOGIC
S
Internal 2.5V Digital Bias Regulator. Needs Decoupling Capacitor added to ground
6
10
EN_VSYNC
I
Frame synchronization enable. Ties high to VDC for enable VSYNC function. PWM_SET/PLL also needs to be
configured with an RC network. Pin can be tied to VDC or VLOGIC to enable function
7
11
VDC
S
Internal 5V Analog Bias Regulator. Needs Decoupling Capacitor added to ground
8
12
VIN
S
Main Power Input. Range: 9V to 32V
9
13
EN
I
LED Driver Enable. Whole chip will shut down when low
10
14
AGND
S
Analog Ground
11
15
GD
O
External Boost FET gate control
12
16
SLEW
I
Boost Regulation Switching Slew Rate control
13
17
CS
I
External Boost FET current sense input
14
18
PGND
S
Boost FET gate driver power ground and ground reference for CS pin
15
19
PWM_SET/PLL
I
For direct PWM mode, tie this pin high to VDC. For other non-VSYNC modes, connect to a resistor to set the
dimming frequency. If the VSYNC function is enabled, connect this pin to the PLL loop filter network.
16
20
OVP
I
Overvoltage Protection Input as well as Output Voltage feedback pin
17
21
COMP
I
Boost compensation
18
22
ISET1
I
Resistor connection for setting LED current. 28.7kΩ
= 100mA


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