ISL97692_14 Datasheet, PDF (9/32 Pages) Intersil Corporation – Single or Multiple Cell Li-ion Battery Powered 4-Channel and 6-Channel LED Drivers

ISL97692, ISL97693, ISL97694A
Pin Descriptions
PIN
NAME
AGND
CH5
ISL97692
TQFN
WLCSP
1
C4
-
-
CH6
-
-
COMP
2
B4
ISET
3
C3
ENPS
4
A4
PWMI
5
B3
SCL
-
-
(ISL97694A)
SDA/PWMI
-
-
(ISL97694A)
EN
6
A2
VIN
7
B2
FPWM
8
A3
LX
9
A1
PGND
10
B1
FSW
11
C2
OVP
12
C1
CH1
13
D1
CH2
14
D2
CH3
15
D3
CH4
16
D4
NC
-
-
PAD
-
ISL97693
3
1
2
4
5
-
6
-
-
7
8
-
9
10
11
12
13
14
15
16
-
ISL97694A
DESCRIPTION
2
Analog Ground for precision circuits.
20
Channel 5 current sink and channel monitoring. Tie pin to GND if channel
unused.
1
Channel 6 current sink and channel monitoring. Tie pin to GND if channel
unused.
3
External compensation. Fit a series RC comprising 12k and 15nF from COMP
to GND.
4
Channel current setting. The LED channel current is adjusted from 2mA to
40mA (ISL97692) or to 30mA with (ISL97693, ISL97694A) resistor R_SET from
ISET pin to GND.
-
Enable Phase Shift PWM Dimming Control. High = Enable. Low = Disable.
-
PWM Input Signal for ISL97692/3 for brightness control.
5
I²C serial clock input. Mode selection to PWMI input when tied to GND for
ISL97694A.
7
I²C serial data input and output. PWMI input when SCL tied to GND for
ISL97694A.
8
Enable Input. High = Normal operation. Low = Shutdown.
9
Input Supply Voltage.
10
Tie FPWM to VIN to select Direct PWM mode. In Direct PWM mode, the channel
outputs follow the PWMI pin’s frequency and pulse width.
Connect resistor R_FPWM from FPWM to GND to select PWM dimming frequency
adjustment. In this mode, the channel outputs follow the PWMI pin’s PWM
duty, and the LED PWM dimming frequency is set by the value of resistor
R_FPWM.
11
Input to boost switch.
12
Power ground (LX, C_IN, and C_OUT Power return).
14
Switching Frequency Adjustment. The boost switching frequency is adjusted
from 400kHz to 1.5MHz with resistor R_FSW from FSW pin to GND.
15
Overvoltage protection input.
16
Channel 1 current sink and channel monitoring. Tie pin to GND if channel
unused.
17
Channel 2 current sink and channel monitoring. Tie pin to GND if channel
unused.
18
Channel 3 current sink and channel monitoring. Tie pin to GND if channel
unused.
19
Channel 4 current sink and channel monitoring. Tie pin to GND if channel
unused.
6, 13 Not connected internally.
Connect to PGND and refer to the figure 32 in the General Power PAD Design
Considerations.
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9
FN7839.5
May 1, 2014