UNISONIC TECHNOLOGIES CO TL594 Technical data
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UNISONIC TECHNOLOGIES CO., LTD
TL594
LINEAR INTEGRATED CIRCUIT
PULSE-WIDTH-MODULATION
CONTROL CIRCUIT
DESCRIPTION
The UTC TL594 incorporates all the functions required for a
pulse-width-modulation (PWM) control circuit. It is pin compatible
with TL494 with upgrade performance.
SOP-16
DIP-16
TSSOP-16
*Pb-free plating product number: TL594L
FEATURES
* Outputs for 200-mA Sink or Source
Current
* Output is Single-Ended or Push-Pull
Operation Selectable suppression circuit
* Internal Circuitry Prohibits Double Pulse
at Either Output
* Variable Dead Time
* Internal Reference Supply Deliuer 5V
within 1% tolerance
* Undervoltage Lockout for Low-V
Conditions
CC
ORDERING INFORMATION
Order Number
Normal Lead Free Plating
TL594-D16-T TL594L-D16-T DIP-16 Tube
TL594-P16-R TL594L-P16-R TSSOP-16 Tape Reel
TL594-P16-T TL594L-P16-T TSSOP-16 Tube
TL594-S16-R TL594L-S16-R SOP-16 Tape Reel
TL594-S16-T TL594L-S16-T SOP-16 Tube
TL594L-D16-T
(1)Packing Type
(2)Package Type
(3)Lead Plating
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Package Packing
(1) R: Tape Reel, T: Tube
(2) D16: DIP-16, S16: SOP-16, P16: TSSOP-16
(3) L: Lead Free Plating, Blank: Pb/Sn
TL594 LINEAR INTEGRATED CIRCUIT
PIN CONFIGURATION
DIP-16/SOP-16/TSSOP-16 PACKAGE
(TOP VIEW)
16
1IN+
1IN
FEEDBACK
DTC
CT
RT
GND
C1
1
2
3
4
5
6
7
8
2IN+
15
2IN-
14
REF
13
Output CTRL
12
V
11
C2
10
E2
9
E1
CC
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TL594 LINEAR INTEGRATED CIRCUIT
FUNCTIONAL BLOCK DIAGRAM
Deadtime
Comparator
+
-
-
+
PWM
Comparator
0.7mA
3
Feedback PWM
Comparator Input
CK Q
Flip–Flop
DQ
Reference
Regulator
12
V
CC
7
Gnd
IN+
IN-
IN+
IN-
Deadtime
Control
C
R
Error Amp 1
1
2
16
15
Error Amp 2
4
0.1V
T
Oscillator
T
0.7V
+
1
-
+
2
-
Output Co ntrol
14
Ref.
Outp ut
13
Lockout
UV
Q1
Q2
11
10
C2
E2
8
C1
9
E1
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