TL594_07 Datasheet, PDF (2/19 Pages) Texas Instruments – PULSE-WIDTH-MODULATION CONTROL CIRCUIT

TL594
PULSE-WIDTH-MODULATION CONTROL CIRCUIT
SLVS052G – APRIL 1988 – REVISED JANUARY 2007
ORDERING INFORMATION⁽¹⁾
T_A
PACKAGE ⁽²⁾
PDIP – N
Tube of 25
ORDERABLE PART NUMBER
TL594CN
0°C to 70°C
SOIC – D
SOP – NS
Tube of 40
Reel of 2500
Reel of 2000
TL594CD
TL594CDR
TL594CNSR
TSSOP – PW
Tube of 90
Reel of 2000
TL594CPW
TL594CPWR
PDIP – N
Tube of 25
TL594IN
–40°C to 85°C
SOIC – D
SOP – NS
Tube of 40
Reel of 2500
Reel of 2000
TL594ID
TL594IDR
TL594INSR
TSSOP – PW
Tube of 90
Reel of 2000
TL594IPW
TL594IPWR
www.ti.com
TOP-SIDE MARKING
TL594CN
TL594C
TL594
T594
TL594IN
TL594I
TL594I
Z594
(1) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI
web site at www.ti.com.
(2) Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at
www.ti.com/sc/package.
INPUT
OUTPUT CTRL
V_I = 0
V_I = V_ref
FUNCTION TABLE
OUTPUT FUNCTION
Single-ended or parallel output
Normal push-pull operation
RT ⁶
CT ⁵
≈0.1 V
DTC ⁴
FUNCTIONAL BLOCK DIAGRAM
OUTPUT CTRL
(see Function Table)
13
Oscillator
1D
DTC
Comparator
C1
8
C1
9
E1
IN+ ¹
2
IN-
Error Amplifier 1
+
1
-
PWM
Comparator
16
IN+
IN- ¹⁵
Error Amplifier 2
+
2
-
3
FEEDBACK
0.7 mA
Pulse-Steering
Flip-Flop
Reference
Regulator
Undervoltage
Lockout
Control
11 _C2
10 _E2
12 _VCC
14 _REF
7 _GND
2
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