TL594CDTB ON Semiconductor, TL594CDTB Datasheet - Page 9

• Manufacturer Part Number: TL594CDTB
• Description: IC PWM CTRLR SWITCHMODE 16-TSSOP
• Manufacturer: ON Semiconductor
• Series: SWITCHMODE™r

Specifications of TL594CDTB

• Pwm Type: Voltage Mode
• Number Of Outputs: 1
• Frequency - Max: 300kHz
• Duty Cycle: 50%
• Voltage - Supply: 7 V ~ 40 V
• Buck: Yes
• Boost: No
• Flyback: No
• Inverting: No
• Doubler: No
• Divider: No
• Cuk: No
• Isolated: No
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 16-TSSOP
• Frequency-max: 300kHz
• Topology: Push-Pull
• Output Current: 500 mA
• Switching Frequency: 300 KHz
• Duty Cycle (max): 48 %
• Operating Supply Voltage: 15 V
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Fall Time: 40 ns
• Mounting Style: SMD/SMT
• Rise Time: 100 ns
• Synchronous Pin: No
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Figure 19. Slaving Two or More Control Circuits
R
T
+V
0.01 0.01
in
= 8.0V to 20V
Line Regulation
Load Regulation
Output Ripple
Short Circuit Current
Efficiency
33k
1.0M
C
T
Test
15
16
1
2
3
4.7k
+
−
Comp
−
+
4.7k
13
6
5
6
5
OC V
R
C
R
C
14
T
T
T
T
V
REF
10k
ref
V
V
V
V
V
+
V
10
in
in
in
in
in
Figure 21. Pulse Width Modulated Push−Pull Converter
ref
4
DT
= 10 V to 40 V
= 28 V, I
= 28 V, I
= 28 V, R
= 28 V, I
0.001
5
C
TL594
Conditions
T
O
O
O
6
L
Master
Slave
(Additional
Circuits)
R
= 1.0 mA to 1.0 A
= 1.0 A
= 1.0 A
= 0.1 W
T
15k
12
7
Gnd
V
CC
All capacitors in mF
9
http://onsemi.com
E
1
10
E
2
TL594
9
C
C
14 mV 0.28%
3.0 mV 0.06%
65 mVpp P.A.R.D.
1.6 A
71%
1
2
8
11
Results
V
in
47
47
> 40V
Figure 20. Operation with V
Tip
32
R
Tip
32
S
50
25V
+
T
1
T1 − Primary: 20T C.T. #28 AWG
T1 −
T1 −
L1 − 3.5 mH @ 0.3 A
External Zener
1N4934
1N4934
Core: Ferroxcube 1408P−L00−3CB
Secondary: 12OT C.T. #36 AWG
L
1
V
Z
= 39V
1N975A
240
270
+
in
50
35V
> 40 V Using
Gnd
V
1.0
12
7
CC
4.7k
22
k
+V
I
5.0V
O
+
Ref
O
= 0.2A
= 28V
50
35V