stled325 STMicroelectronics, stled325 Datasheet - Page 34

• Manufacturer Part Number: stled325
• Description: I?c Interfaced, Advanced Led Controller/driver With Keyscan, Standby Power Management And Real Time Clock Rtc
• Manufacturer: STMicroelectronics

Electrical ratings
4.2
4.2.1
34/62
Recommended operating conditions
DC electrical characteristics
(T
Table 12.
Symbol
I
A
I
TOLSEG
I
V
OLEAK
V
R
IH
I
V
V
I
= -40 to +85 °C, V
V
V
V
V
SEG
REG
DIG
HYS
SET
CC
, I
OL
IH
IH
IL
IL
IL
External supply voltage
Internal logic supply voltage and
regulator output
HIGH level input voltage (all digital
pins except KEY1 and KEY2)
LOW level input voltage (all digital
pins except KEY1 and KEY2)
HIGH level input voltage (KEY1 and
KEY2 pins)
LOW level input voltage (KEY1 and
KEY2 pins)
Input current (all pins)
Hysteresis voltage (digital pins)
Low level output voltage (Digital
output pins)
Driver leakage current
Segment drive LED sink current
Digit drive LED source current
Segment drive current matching
External current setting reference
resistor (precision = ±1% tolerance)
DC electrical characteristics
CC
Parameter
= 5.0 V ± 10%, GND = 0 V)
Doc ID 17576 Rev 1
V
V
V
Test conditions
V
current = 40 mA
V
DIGIT
DIGIT
LED
LED
I
IN
SEG
I
guaranteed
guaranteed
guaranteed
guaranteed
V
OL2
Drivers off
High level
High level
Low level
Low level
T
CC
= V
= V
=2.5V; LED
A
= V
= V
=25°C
= 40 mA
=5.0 V,
= 4 mA
IH
F
CC
CC
= 2.5 V
or V
– 1.0
– 1.0
IL
1.62
1.35
Min
240
-30
4.5
-2
0
3
0
Typ
320
360
1.8
-40
5.0
0.2
STLED325
Max
1.98
1.98
0.45
-150
±4.0
400
5.5
5.5
0.4
-50
2
2
Uni
mA
mA
µA
µA
%
V
V
V
V
V
V
V
V
Ω
t