STCS1APHR STMicroelectronics, STCS1APHR Datasheet - Page 7

• Manufacturer Part Number: STCS1APHR
• Description: IC LED DRIVR PWM CONTROL PWRSO-8
• Manufacturer: STMicroelectronics
• Type: PWM Controlr

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

5
Figure 3.
Figure 4.
V
V
PWM
PWM
PWM
GND
GND
GND
EN
EN
CC
CC
Timing
PWM and output current timing
Block diagram
High Voltage
High Voltage
45 V
45 V
Preregulator
Preregulator
3.3 V
3.3 V
PWM
PWM
Input
Input
Enable
Enable
Input
Input
Current
Current
PWM
PWM
90%
90%
10%
10%
SLOPE
SLOPE
Bandgap
Bandgap
Bandgap
1.23 V
1.23 V
1.23 V
Enable,
Enable,
PWM &
PWM &
Slope controll
Slope controll
Logic
Logic
T
T
D
D
Slope
Slope
Control
Control
Trise
Trise
Shutdown
Shutdown
all blocks
all blocks
100 mV
100 mV
100 mV
75 mV
75 mV
-
-
-
+
+
+
Comp
Comp
Low Voltage 3.3 V
Low Voltage 3.3 V
Thermal
Thermal
Thermal
Shutdown
Shutdown
Shutdown
Logic
Logic
T
T
D
D
+
+
+
-
-
-
Disc
Disc
comp
comp
Tfall
Tfall
Driver
Driver
H.V.
H.V.
45 V
45 V
DRAIN
DRAIN
DISC
DISC
FB
FB
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