HV9982 Supertex, HV9982 Datasheet - Page 5

• Manufacturer Part Number: HV9982
• Description: LED Drivers 3-Channel LED High Accuracy
• Manufacturer: Supertex

Internal Block Diagram
PWMD1
RAMP
OVP1
SKIP
FLT1
CLK
S1
S2
Supertex inc.
Replicated for each channel
Bandgap
REF
1/12
Generator
RAMP
Fault
S1
S2
POR
FDA
FDB
FDC
+
-
CLKA
CLKB
CLKC
REF
RAMP
0.1V
PWMDA
FC
5V
OVDA
VIN
+
-
RAMP
+
-
●
+
-
EN
1235 Bordeaux Drive, Sunnyvale, CA 94089
RAMP
DIS
FC
Regulator
Linear
+
-
S
R
Shared circuitry
VDD
S1 S2
CLKA
Q
Shared circuitry
FDA
UVLO
5
Fault
PWMDA
SCDA
POR
S
R
+
-
Q
Q
●
+
-
PWMDA
Tel: [phone]
FC
2
Blanking
CLKA
PWMDA
●
www.supertex.com
Blanking
PWMDA
+
-
DIS
HV9982
HV9982
REF1
FDBK1
COMP1
GATE1
CS1