Datasheet

Electrical characteristics STP4CMP
8/22 Doc ID 15770 Rev 2
4 Electrical characteristics
V
CC
=3.3V, V
EN
=V
ON1
=V
ON2
=V
ON3
=V
ON4
=V
CC
, V
CP_SEL
= V
CC
, R
SET1
= R
SET2
= R
SET3
=
R
SET4
= 649 Ω, C1 =1 µF, typical values are at T
A
=25°C, unless otherwise specified.
Table 7. Electrical characteristics
Symbol Parameter Test condition Min. Typ. Max. Unit
V
CC
Supply voltage 2.7 5.5 V
V
cp_clamp
Charge pump clamp voltage
2.7 V ≤ V
CC
< 3.1 V;
V
CP_sel
= V
CC;
I
OUT
≤ 40 mA
5
V
V
CC
> 3.1 V; V
CP_sel
= V
CC;
I
OUT
≤ 120 mA
5
T
cp_start
Charge pump startup time
From CP_sel low to high
transition to CP reaches
steady-state at 5 V
10 ms
I
LED1,2,3,4
LED sink current for each
channel
R
setx
= 649 Ω at V
LEDx
=0.9 V;
V
CC
> 3.1 V
27.9 30 32.1 mA
R
setx
= 7.87 kΩ at
V
LEDx
= 0.9 V; V
CC
≥ 3.1 V
2.33 2.5 2.68 mA
Δ I
LED
Output current error
between each channel
R
set1
=R
set2
=R
set3
=R
set
T
A
= 25 °C
±1 ±4 %
V
IH
High level input voltage 2.0 V
V
IL
Low level input voltage 0.8 V
I
CC
Supply operating current
V
ON1
=V
ON2
=V
ON3
=V
ON4
=G
ND; no load; V
CC
=5.5 V
(charge pump disabled);
V
CP_SEL
=GND,
R
set1
=R
set2
=R
set3
=R
set4
=
7.87 kΩ
3.6
mA
V
ON1
=V
ON2
=V
ON3
=V
ON4
=G
ND; no load; V
CC
=5.5 V
(charge pump disabled);
V
CP_SEL
=GND,
R
set1
=R
set2
=R
set3
=R
set4
=
649 Ω
1.7
V
ON1
=V
ON2
=V
ON3
=V
ON4
=G
ND; no load; V
CC
=3.3 V
(charge pump disabled);
V
CP_SEL
=V
CC
, R
set1
=R
set2
=
7.87 kΩ
4.5
V
ON1
=V
ON2
=V
ON3
=V
ON4
=G
ND; no load; V
CC
=3.3 V
(charge pump disabled);
V
CP_SEL
=V
CC
,
R
set1
=R
set2
=R
set3
=R
set4
=
649 Ω
17.2