Datasheet

LM34919
ON TIMER
OFF TIMER
LEVEL
SHIFT
7V SERIES
REGULATOR
VCC
UVLO
8V-40V
Input
VIN
C1
R
ON
C5
RON/SD
SS
FB
RTN
LOGIC
REGULATION
COMPARATOR
OVER-
VOLTAGE
COMPARATOR
+
-
+
-
+
-
D1
SGND
ISEN
SW
BST
VCC
VIN
COMPLETE
START
R
ON
START
COMPLETE
C3
C4
R1
R2
R3
C2
CURRENT LIMIT
COMPARATOR
R
SENSE
100 m:
V
OUT
2.9V
2.5V
10.5 PA
GATE DRIVE
UVLO
L1
+
-
+
-
0.8V
DRIVER
DRIVER
64 mV
C6
THERMAL
SHUTDOWN
LM34919
SNOSAY2E –MAY 2007–REVISED FEBRUARY 2013 www.ti.com
Typical Performance Characteristics (continued)
Voltage at the R
ON/SD
Pin Shutdown and Operating Current into V
IN
Figure 9. Figure 10.
TYPICAL APPLICATION CIRCUIT AND BLOCK DIAGRAM
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