HV9919B Supertex, Inc., HV9919B Datasheet - Page 2

• Manufacturer Part Number: HV9919B
• Description: Hysteretic, Buck, High Brightness Led Driver With High-side Current Sensing
• Manufacturer: Supertex, Inc.

-G indicates package is RoHS compliant (‘Green’)
Absolute Maximum Ratings
Stresses beyond those listed under “Absolute Maximum Ratings” may cause
permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in
the operational sections of the specifications is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect device reliability.
Electrical Characteristics
(V
Ordering Information
Parameter
VIN, CS to GND
VDD, GATE, RAMP, DIM, ADIM to GND
CS to VIN
Continuous power dissipation,
Operating temperature range
Junction temperature
Storage temperature range
IN
*
ΔUVLO
= 12V, V
UVLO
I
Sym
I
IN, SDN
IN, LIM
Guaranteed by design and characterization, 100% tested at T
V
f
V
OSC
I
HV9919B
IN
DD
IN
Device
DIM
= V
Supertex inc.
Description
Input DC supply voltage range
Internally regulated voltage
Supply current
Shutdown supply current
Current limit
Oscillator frequency
V
V
DD
DD
DD
, V
Undervoltage lockout threshold
Undervoltage lockout hysteresis
RAMP
= GND, C
VDD
(T
= 1.0µF, R
A
Package Options
0.80mm height (max),
= +25°C)
3.00x3.00mm body,
●
HV9919BK7-G
8-Lead DFN
1235 Bordeaux Drive, Sunnyvale, CA 94089
0.65mm pitch
CS
= 0.5Ω, T
-40°C to +125°C
-65°C to +150°C
A
= T
-0.3 to +6.0V
-1.0 to +0.3V
-0.3 to +45V
J
A
= -40
= 25
Min
4.5
4.5
+150°C
-
-
-
-
-
-
-
Value
O
O
1.6W
C. Typical characteristics are given at T
C to +125
2
Typ
500
8.0
30
-
-
-
-
-
-
Product Marking
O
Pin Description
Thermal Resistance
Mounted on FR-4 board, 25mm x 25mm x 1.57mm
C* unless otherwise noted)
8-Lead DFN (K7)
●
9 9 1 9
Y W L L
Max
900
5.5
1.5
2.0
4.5
40
Tel: [phone]
RAMP
-
-
-
ADIM
Package
VIN
CS
Units
MHz
mA
mA
mV
1
2
3
4
µA
V
V
V
8-Lead DFN (K7)
8-Lead DFN (K7)
Y = Last Digit of Year Sealed
W = Code for Week Sealed
L = Lot Number
Conditions
DC input voltage
V
GATE open
DIM < 0.7V
V
V
---
V
V
A
(top view)
●
IN
IN
IN
DD
DD
= 25
GND
= “Green” Packaging
www.supertex.com
= 6.0 to 40V
= 4.5V, V
= 4.5V, V
rising
falling
O
C.
DD
DD
8
7
6
5
60
= 0V
= 4.0V
HV9919B
O
GND
DIM
θ
GATE
VDD
C/W
ja