STCS1APHR STMicroelectronics, STCS1APHR Datasheet - Page 13
![IC LED DRIVR PWM CONTROL PWRSO-8](/photos/7/37/73765/stcs1aphr_sml.jpg)
STCS1APHR
Manufacturer Part Number
STCS1APHR
Description
IC LED DRIVR PWM CONTROL PWRSO-8
Manufacturer
STMicroelectronics
Type
PWM Controlr
Datasheet
1.STCS1APUR.pdf
(19 pages)
Specifications of STCS1APHR
Constant Current
Yes
Topology
PWM
Number Of Outputs
1
Internal Driver
Yes
Type - Primary
Automotive
Type - Secondary
White LED
Voltage - Supply
4.5 V ~ 40 V
Mounting Type
Surface Mount
Package / Case
PowerSO-8
Operating Temperature
-40°C ~ 125°C
Current - Output / Channel
1.5A
Internal Switch(s)
Yes
High Level Output Current
1500 mA
Operating Supply Voltage
4.5 V to 40 V
Maximum Supply Current
3 uA
Maximum Operating Temperature
+ 150 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
For Use With
497-8264 - BOARD EVAL BASED ON STCS1497-5960 - BOARD DEMO FOR STCS1P
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Voltage - Output
-
Frequency
-
Efficiency
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
497-6915-2
STCS1APHR
STCS1APHR
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
STCS1APHR
Manufacturer:
RICHTEK
Quantity:
1 001
Figure 16. Maximum power dissipation vs T
3.50
3.50
3.00
3.00
2.50
2.50
2.00
2.00
1.50
1.50
1.00
1.00
0.50
0.50
0.00
0.00
25
25
P
P
DMAX
DMAX
35
35
In this case V
P
The junction temperature will be:
T
The following pictures show the maximum power dissipation according to the ambient
temperature for both packages:
for DFN8 3x3 mm
J
D
= (T
= (T
= 37.6 x 0.556 + 50 = 70.9 °C
– LEDs current: 500 mA;
– Package: DFN8 3x3 mm;
– T
45
45
= (1.2 - 0.1) x 0.5 + 12 x 0.5 x 10
JMAX
JMAX
55
55
A
-T
-T
= 50°C;
A
A
65
65
)/R
)/R
DRAIN
thJA
thJA
[°C]
[°C]
75
75
R
R
thJA
thJA
85
85
= 12 - 3 x 3.6 = 1.2 V
= 38 [°C/W]
= 38 [°C/W]
95
95
105
105
115
115
A
125
125
-3
= 0.55 + 6 x 10
Figure 17. Maximum power dissipation vs T
3.00
3.00
2.50
2.50
2.00
2.00
1.50
1.50
1.00
1.00
0.50
0.50
0.00
0.00
25
25
P
P
DMAX
DMAX
35
35
for PowerSO-8
-3
= (T
= (T
45
45
= 556 mW
JMAX
JMAX
55
55
-T
-T
65
65
A
A
)/R
)/R
[°C]
[°C]
thJA
thJA
75
75
85
85
R
R
thJA
thJA
95
95
= 45 [°C/W]
= 45 [°C/W]
105
105
115
115
13/19
A
125
125