STLDC08 STMicroelectronics, STLDC08 Datasheet - Page 12

• Manufacturer Part Number: STLDC08
• Description: Step-up controller for LED supply
• Manufacturer: STMicroelectronics

Block diagram
6
Figure 16. Block diagram
12/29
Block diagram
Over Voltage
Over Voltage
+5 V
+5 V
GND
GND
GND
GND
EN/PWM
EN/PWM
T
T
ONMAX
ONMAX
Protection
Protection
= 20 µsec
= 20 µsec
TOFF timer
TOFF timer
T
T
OFF
OFF
RESET
RESET
= 1 µsec
= 1 µsec
Peak Current
Peak Current
Control
Control
+
+
-
-
OVP TH
OVP TH
VOUT
VOUT
OCP
OCP
Doc ID 18476 Rev 1
OCP_TH
OCP_TH
FB
FB
S
S
R
R
Comparator
Comparator
Feedback
Feedback
Q
Q
Peak Current
Peak Current
Comparator
Comparator
LDO
LDO
DRIVER
DRIVER
+
+
+
+
-
-
-
-
DRIVER
DRIVER
+5 V
+5 V
100 mV
100 mV
OCP_TH
OCP_TH
2Vcc
2Vcc
Charge
Charge
Pump
Pump
Current Ramp
Current Ramp
Sensed
Sensed
PWMOUT
PWMOUT
SENSE
SENSE
AM07846v1
AM07846v1
Vcc
Vcc
VOUT
VOUT
DRV
DRV
2Vcc
2Vcc
FB
FB
STLDC08