HV9925 Supertex, Inc., HV9925 Datasheet - Page 2

• Manufacturer Part Number: HV9925
• Description: Programmable-current Led Lamp Driver Ic With Pwm Dimming
• Manufacturer: Supertex, Inc.

-G indicates package is RoHS compliant (‘Green’)
Ordering Information
Absolute Maximum Ratings
All voltages referenced to GND pin.
**The power dissipation is given for the standard minimum pad without a heat
slug, and based on R
and case-to-ambient thermal resistance, where the latter is determined by
the user’s board design. The junction-to-ambient thermal resistance is R
105°C/W when the part is mounted on a 0.04 in
R
Electrical Characteristics
Output (DRAIN)
Notes:
Parameter
Supply voltage, V
PWMD, R
Supply current, I
Operating ambient temperature range
Operating junction temperature range
Storage temperature range
Power dissipation @ 25°C
θJA
ΔV
C
V
*
# Denotes guaranteed by design.
V
Sym
= 60°C/W when mounted on a 1.0in
R
V
V
I
I
DRAIN
DRAIN
UVLO
SAT
DD
UVLO
DD
BR
ON
Denotes the specifications which apply over the full operating ambient temperature range of -40°C < T
HV9925
Device
V
V
V
Operating supply current
Breakdown voltage
V
On-resistance
Output capacitance
DRAIN saturation current
SENSE
Parameter
DD
DD
DD
DRAIN
regulator output
undervoltage threshold
undervoltage lockout hysteresis
voltage
supply voltage
DD
θJA
DD
= 125°C/W. R
8-Lead SOIC w/ Heat Slug
θJA
2
pad of 1 oz copper.
Package Options
is the sum of the junction-to-case
HV9925SG-G
(The specifications are at T
2
pad of 1 oz copper, and
-40°C to +125°C
-65°C to +150°C
-40°C to +85°C
-0.3 to +10V
-0.3 to +10V
#
800mW**
-
-
-
-
*
-
-
-
Value
+5mA
Min
475
100
4.8
20
-
-
-
-
-
θJA
=
A
2
= 25°C and V
Typ
200
300
100
150
7.5
1.0
Pin Configuration
Heat slug is at ground potential.
-
-
-
Product Marking
Max
500
200
5.0
DRAIN
RSENSE
-
-
-
-
-
-
PWMD
H9925
= 50V, unless otherwise noted.)
GND
VDD
L L L L
YWW
Heat Slug
Units
mV
mA
μA
pF
Ω
V
V
V
V
8-Lead SOIC (SG)
8-Lead SOIC (SG)
1
2
3
4
---
---
---
V
---
---
I
V
---
DRAIN
Conditions
A
DD(EXT)
DRAIN
(top view)
< +85°C.
Y = Year Sealed
WW = Week Sealed
L = Lot Number
= 50mA
= 400V
= 8.5V
= “Green” Packaging
8
7
6
5
DRAIN
DRAIN
DRAIN
NC
HV9925