Datasheet

VI
N
7.7V SERIES
REGULATOR
V
CC
UVT
V
CC1
5
5
VCC1
VCC2
UVLO
1.25V
20 PA
THERMAL
SHUTDOWN
V
CC
Disable
Drivers Off
Ramp1
Ramp2
MaxDC1
PWM
Comp 1
5.0V
10k
COMP1
2k
SS1
45 PA
SLOPE1
CS1
0.5V
Current
Limit
CLK1
5.0V
10k
COMP2
2k
SS2
45 PA
SLOPE2
CS2
0.5V
Current
Limit
CLK2
OUT1
GND1
AC1
OUT2
GND2
AC2
OVLP
Drivers Off
SS1
SS1
1 PA
5.0V
49 PA
5.0V
1k
Logic
SS2
SS2
1 PA
5.0V
49 PA
5.0V
1k
Logic
Driver
Logic
5.0V
V
CC
Controller 2
Controller 1
Restart
Drivers Off
UVLO
MaxDC2
MaxDC1
MaxDC2
PWM
Latch
Q
S
R
Q
PWM
Latch
Q
S
R
Q
PWM
Comp 2
ILim1
ILim2
DC2
DC1
Soft-start
1
42k
42k
Support Functions
V
CC
UVT
V
CC
UVT
Soft-start
2
BIAS VOLTAGE
GENERATOR
RT/
SYNC
DCL
OSCILLATOR
& RAMP
GENERATOR
CLK1, 2
UserMaxDC1, 2
SLOPE1, 2
RAMP1, 2
20 PA
10 PA
2.55V
LOGIC
Restart
Latch
ILim1,2
Clk1,2
5.0V
RES
Driver
Logic
Overlap
Generator
Restart
Q
S
R
Q
PWM1
DC1,2
Vref
Driver Enable
Drivers Off
Restart
Driver Enable
Driver Enable
Restart
Latch
UserMaxDC1
UserMaxDC2
Restart
Restart
Latch
PWM2
5k
5k
5k
5k
V
CC2
V
CC1
V
CC1
V
CC2
V
CC2
-V
UVLO
CLK1
OUT1 + 50 ns
OUT2 + 50 ns
CLK2
LM5034
SNVS347A –FEBRUARY 2005–REVISED APRIL 2013 www.ti.com
Block Diagram
Figure 3. Detailed Block Diagram
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