LT1769IGN View Datasheet(PDF) - Linear Technology
Part Name
Description
MFG CO.
LT1769IGN
Linear Technology
'LT1769IGN' PDF : 16 Pages View PDF
BLOCK DIAGRAM
LT1769
–
UV
+
+
7V
+
0.7V
+
–
VSW
–
VCC
+
+
1.5V
VBAT
PWM
C1
GND
VC
75k
UVOUT
SHUTDOWN
200kHz
OSCILLATOR
S
VCC
BOOST
SLOPE COMPENSATION
B1
R2
R3
R
R
QSW
R
SW
VCC
SPIN
SENSE RS3
CA1
BAT
RS2
R1
IPROG
1k
CA2
VREF
0VP
VA
gm = 0.64Ω
VREF
2.465V
100mV
CLP
CL1
CLN
PROG
CPROG
IPROG
RPROG
IBAT
=
(IPROG)(RS2)
RS1
( )( ) =
2.465V
RPROG
RS2
RS1
(RS3 = RS2)
COMP1
COMP2
1769 BD
IBAT
RS1
BAT
1769fa
7
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