HT0638
Ordering Information
Package Option
Breakdown Voltage
375V
Switch Resistance
15Ω
SO-8
HT0638LG
Absolute Maximum Ratings
V
TPG
, Input line voltage
V
TP
, Output line voltage
HKS continuous input voltage
LS1, LS2 continuous input voltage
DP continuous input voltage
Storage temperature
Soldering temperature*
Notes: All voltages are referenced to ground.
*Distance of 1.6mm from case for 10 seconds.
Typical Performance Curve
+375V
+18V
V
TPG
+20V
+5V
350
300
250
I
LIMIT
vs. R
SENSE
–65°C to +150°C
+300°C
I
LIMIT
(mA)
200
150
100
50
0
100
200 300
400 500
600 700
800 900 1000
R
SENSE
(ohms)
Block Diagram
TPG
TP
HKS
LS1
LS2
DP
GND
H = ON
L = OFF
Charge Pump
&
Logic Control
CS
2
SUPERTEX [ Supertex, Inc ]
