STCS1PUR STMicroelectronics, STCS1PUR Datasheet - Page 11

• Manufacturer Part Number: STCS1PUR
• Description: IC LED DRIVER LINEAR 8-DFN
• Manufacturer: STMicroelectronics
• Type: Linear (Non-Switching)r

Specifications of STCS1PUR

• 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: 8-DFN
• Operating Temperature: -40°C ~ 125°C
• Current - Output / Channel: 1.5A
• Internal Switch(s): Yes
• Operating Supply Voltage: 4.5 V to 40 V
• Maximum Supply Current: 750 uA
• Maximum Operating Temperature: + 150 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Operating Supply Voltage (typ): 5/9/12/15/18/24V
• Operating Temperature (min): -40C
• Operating Temperature (max): 150C
• Operating Temperature Classification: Automotive
• Package Type: DFN
• Pin Count: 8
• Mounting: Surface Mount
• Operating Supply Voltage (min): 4.5V
• Operating Supply Voltage (max): 40V
• 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: 497-5962-2

Figure 12. 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.
– 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 13. 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
11/17
A
125
125