HV9982 Supertex, HV9982 Datasheet - Page 4

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

Electrical Characteristics
Disconnect Driver (FAULT1, FAULT2 and FAULT3)
Short Circuit Protection (all three channels)
HICCUP timer
C
#
*
T
T
I
T
F
HC,SOURCE
F
RAMP
RISE,FAULT
FALL,FAULT
BLANK,SC
V
RAMP,max
V
Sym
V
RAMP,min
V
T
G
TH(H)
RAMP
The specifications which apply over the full operating temperature range at 0
TH(L)
Denotes specifications guaranteed by design.
omin
OFF
SC
for Analog Control of PWM Dimming
Supertex inc.
Parameter
Fault output rise time
Fault output fall time
Blanking time
Gain for short circuit comparator
Minimum current limit threshold
Propagation time for short circuit
detection
Current source at SKIP pin used
for hiccup mode protection
High threshold at SKIP pin
Low threshold at SKIP pin
Minimum frequency
Maximum frequency
Voltage of ramp
●
1235 Bordeaux Drive, Sunnyvale, CA 94089
(cont.)
#
#
#
*
-
-
-
-
-
-
-
-
1.85
0.15
Min
400
0.2
-
-
-
-
-
-
-
-
4
1250
Typ
110
2.0
5.0
0.1
10
-
-
-
-
-
-
O
C < T
Max
2.15
0.25
1.85
450
200
700
250
A
< +85
-
-
-
-
-
●
Tel: [phone]
O
C are guaranteed by design and characterization.
Units
μA
Hz
Hz
ns
ns
ns
ns
V
V
V
V
-
Conditions
330pF capacitor at FAULT pin
330pF capacitor at FAULT pin
---
---
REF = GND
FDBK = 2 • REF + 0.1V
---
---
---
C
C
---
RAMP
RAMP
●
= 10nF
= 1.0nF
www.supertex.com
HV9982