HV9918K7-G Supertex, HV9918K7-G Datasheet - Page 2

• Manufacturer Part Number: HV9918K7-G
• Description: LED Drivers Hysteretic Buck High Brightness LED Driv
• Manufacturer: Supertex

Specifications of HV9918K7-G

• Operating Supply Voltage: 4.5 V to 40 V
• Maximum Supply Current: 1.5 mA
• Maximum Power Dissipation: 1.6 W
• Maximum Operating Temperature: + 125 C
• Mounting Style: SMD/SMT
• Package / Case: DFN-8
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

-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, SW to GND
VDD, 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
V
f
I
SW
IN
DD
IN
HV9918
Device
DIM
= V
Supertex inc.
Description
Input DC supply voltage range
Internally regulated voltage
Supply current
Shutdown supply current
Current limit
Switchingr 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,
●
HV9918K7-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
Min
4.5
4.5
= 25
-
-
-
-
-
-
-
+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)
Max
●
9 9 1 8
Y W L L
900
5.5
1.5
2.0
4.5
40
-
-
-
Tel: [phone]
RAMP
ADIM
Package
VIN
CS
Units
MHz
mV
mA
mA
µA
1
2
3
4
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
SW = GND
DIM < 0.7V
V
V
---
V
V
A
(top view)
GND
IN
IN
IN
DD
DD
●
= 25
= 6.0 to 40V
= 4.5V, V
= 4.5V, V
www.supertex.com
rising
falling
= “Green” Packaging
O
C.
DD
DD
8
7
6
5
60
= 0V
= 4.0V
O
GND
DIM
θ
SW
VDD
C/W
ja
HV9918