ISL29001 Datasheet, PDF (3/11 Pages) Intersil Corporation – Light-to-Digital Sensor

ISL29001
Pin Descriptions
PIN NUMBER
1
2
3
4
5
6
PIN NAME
VDD
GND
REXT
PD
SCL
SDA
DESCRIPTION
Positive supply. Connect this pin to a clean 2.5V to 3.3V supply.
Ground pin. The thermal pad is connected to the GND pin.
External resistor pin is for the ADC reference current, the integration time adjustment
in internal timing mode, and lux range/resolution adjustment. 100kΩ 1% tolerance
resistor recommended.
Power-down pin. This pin is active-high. Applying a logic “high” to this pin will put the
device into power down mode.
I²C serial clock
I²C serial data
The I²C bus lines can be pulled above V_DD, 5.5V max.
Typical Performance Curves R_EXT = 100kΩ
320
T_A = +27°C
COMMAND = 00H
306
5000 lux
292
10
T_A = +27°C
COMMAND = 00H
8 0 lux
6
278
4
200 lux
264
2
250
2.0
2.3
2.6
2.9
3.2
3.5
3.8
SUPPLY VOLTAGE (V)
FIGURE 1. SUPPLY CURRENT vs SUPPLY VOLTAGE
0
2.0
2.3
2.6
2.9
3.2
3.5
3.8
SUPPLY VOLTAGE (V)
FIGURE 2. OUTPUT CODE FOR 0 LUX vs SUPPLY VOLTAGE
1.015
1.010
1.005
T_A = +27°C
COMMAND = 00H
5000 lux
1.000
0.995
200 lux
0.990
2.0
2.3
2.6
2.9
3.2
3.5
3.8
SUPPLY VOLTAGE (V)
FIGURE 3. OUTPUT CODE vs SUPPLY VOLTAGE
320.0
319.5
T_A = +27°C
319.0
318.5
318.0
2.0
2.3
2.6
2.9
3.2
3.5
3.8
SUPPLY VOLTAGE (V)
FIGURE 4. OSCILLATOR FREQUENCY vs SUPPLY VOLTAGE
3
FN6166.6
December 10, 2008