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TL594CDR2G

P1-P3P4-P6P7-P9P10-P12
© Semiconductor Components Industries, LLC, 2005
November, 2005 − Rev. 5
1 Publication Order Number:
TL594/D
TL594
Precision Switchmode
Pulse Width Modulation
Control Circuit
The TL594 is a fixed frequency, pulse width modulation control
circuit designed primarily for Switchmode power supply control.
Features
• Complete Pulse Width Modulation Control Circuitry
• On−Chip Oscillator with Master or Slave Operation
• On−Chip Error Amplifiers
• On−Chip 5.0 V Reference, 1.5% Accuracy
• Adjustable Deadtime Control
• Uncommitted Output Transistors Rated to 500 mA Source or Sink
• Output Control for Push−Pull or Single−Ended Operation
• Undervoltage Lockout
• Pb−Free Packages are Available*
MAXIMUM RATINGS
Rating Symbol Value Unit
Power Supply Voltage V
CC
42 V
Collector Output Voltage V
C1
,
V
C2
42 V
Collector Output Current
(Each Transistor) (Note 1)
I
C1
, I
C2
500 mA
Amplifier Input Voltage Range V
IR
−0.3 to +42 V
Power Dissipation @ T
A
≤ 45°C P
D
1000 mW
Thermal Resistance
Junction−to−Ambient (PDIP)
Junction−to−Air (TSSOP)
Junction−to−Ambient (SOIC)
R
q
JA
80
140
135
°C/W
Operating Junction Temperature T
J
125 °C
Storage Temperature Range T
stg
−55 to +125 °C
Operating Ambient Temperature Range
TL594CD, CN, CDTB
T
A
−40 to 85
°C
Derating Ambient Temperature T
A
45 °C
Maximum ratings are those values beyond which device damage can occur.
Maximum ratings applied to the device are individual stress limit values (not
normal operating conditions) and are not valid simultaneously. If these limits are
exceeded, device functional operation is not implied, damage may occur and
reliability may be affected.
1. Maximum thermal limits must be observed.
*For additional information on our Pb−Free strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
SO−16
D SUFFIX
CASE 751B
TSSOP−16
DTB SUFFIX
CASE 948F
1
PDIP−16
N SUFFIX
CASE 648
1
1
MARKING
DIAGRAMS
1
16
TL594CDG
AWLYWW
A = Assembly Location
WL, L = Wafer Lot
YY, Y = Year
WW, W = Work Week
G or G = Pb−Free Package
TL59
4DTB
ALYWG
G
See detailed ordering and shipping information in the packag
e
dimensions section on page 10 of this data sheet.
ORDERING INFORMATION
PIN CONNECTIONS
C
T
R
T
Ground
C1
1
Inv
Input
C2
Q2
E2
E1
1
≈ 0.1 V
Oscillator
V
CC
5.0 V
REF
(Top View)
Noninv
Input
Inv
Input
V
ref
Output
Control
V
CC
Noninv
Input
Compen/PWN
Comp Input
Deadtime
Control
Error
Amp
+
−
2
3
4
5
6
7
89
10
11
12
13
14
15
16
2
Error
Amp
+
−
Q1
http://onsemi.com
16
1
TL594CN
AWLYYWWG
1
16
(Note: Microdot may be in either location)
TL594
http://onsemi.com
2
RECOMMENDED OPERATING CONDITIONS
Characteristics Symbol Min Typ Max Unit
Power Supply Voltage V
CC
7.0 15 40 V
Collector Output Voltage V
C1
, V
C2
− 30 40 V
Collector Output Current (Each transistor) I
C1
, I
C2
− − 200 mA
Amplified Input Voltage V
in
0.3 − V
CC
− 2.0 V
Current Into Feedback Terminal l
fb
− − 0.3 mA
Reference Output Current l
ref
− − 10 mA
Timing Resistor R
T
1.8 30 500
kW
Timing Capacitor C
T
0.0047 0.001 10
mF
Oscillator Frequency f
osc
1.0 40 300 kHz
PWM Input Voltage (Pins 3, 4, 13) − 0.3 − 5.3 V
ELECTRICAL CHARACTERISTICS (V
CC
= 15 V, C
T
= 0.01 mF, R
T
= 12 kW, unless otherwise noted.)
For typical values T
A
= 25°C, for min/max values T
A
is the operating ambient temperature range that applies, unless otherwise noted.
Characteristics Symbol Min Typ Max Unit
REFERENCE SECTION
Reference Voltage
(I
O
= 1.0 mA, T
A
= 25°C)
(I
O
= 1.0 mA)
V
ref
4.925
4.9
5.0
−
5.075
5.1
V
Line Regulation (V
CC
= 7.0 V to 40 V) Reg
line
− 2.0 25 mV
Load Regulation (I
O
= 1.0 mA to 10 mA) Reg
load
− 2.0 15 mV
Short Circuit Output Current (V
ref
= 0 V) I
SC
15 40 75 mA
OUTPUT SECTION
Collector Off−State Current (V
CC
= 40 V, V
CE
= 40 V) I
C(off)
− 2.0 100
mA
Emitter Off−State Current (V
CC
= 40 V, V
C
= 40 V, V
E
= 0 V) I
E(off)
− − −100
mA
Collector−Emitter Saturation Voltage (Note 1)
Common−Emitter (V
E
= 0 V, I
C
= 200 mA)
Emitter−Follower (V
C
= 15 V, I
E
= −200 mA)
V
SAT(C)
V
SAT(E)
−
−
1.1
1.5
1.3
2.5
V
Output Control Pin Current
Low State (V
OC
≤ 0.4 V)
High State (V
OC
= V
ref
)
I
OCL
I
OCH
−
−
0.1
2.0
−
20
mA
Output Voltage Rise Time
Common−Emitter (See Figure 13)
Emitter−Follower (See Figure 14)
t
r
−
−
100
100
200
200
ns
Output Voltage Fall Time
Common−Emitter (See Figure 13)
Emitter−Follower (See Figure 14)
t
f
−
−
40
40
100
100
ns
ERROR AMPLIFIER SECTION
Input Offset Voltage (V
O
(Pin
3)
= 2.5 V) V
IO
− 2.0 10 mV
Input Offset Current (V
O
(Pin
3)
= 2.5 V) I
IO
− 5.0 250 nA
Input Bias Current (V
O
(Pin
3)
= 2.5 V) I
IB
− −0.1 −1.0
mA
Input Common Mode Voltage Range (V
CC
= 40 V, T
A
= 25°C) V
ICR
0 to V
CC
−2.0 V
Inverting Input Voltage Range V
IR(INV)
−0.3 to V
CC
−2.0 V
Open Loop Voltage Gain (DV
O
= 3.0 V, V
O
= 0.5 V to 3.5 V, R
L
= 2.0 kW)
A
VOL
70 95 − dB
Unity−Gain Crossover Frequency (V
O
= 0.5 V to 3.5 V, R
L
= 2.0 kW)
f
C
− 700 − kHz
Phase Margin at Unity−Gain (V
O
= 0.5 V to 3.5 V, R
L
= 2.0 kW)
φm − 65 − deg.
Common Mode Rejection Ratio (V
CC
= 40 V) CMRR 65 90 − dB
Power Supply Rejection Ratio (DV
CC
= 33 V, V
O
= 2.5 V, R
L
= 2.0 kW)
PSRR − 100 − dB
Output Sink Current (V
O
(Pin
3)
= 0.7 V) I
O
− 0.3 0.7 − mA
Output Source Current (V
O
(Pin
3)
= 3.5 V) I
O
+ −2.0 −4.0 − mA
1. Low duty cycle pulse techniques are used during test to maintain junction temperature as close to ambient temperature as possible.
TL594
http://onsemi.com
3
ELECTRICAL CHARACTERISTICS (V
CC
= 15 V, C
T
= 0.01 mF, R
T
= 12 kW, unless otherwise noted.)
For typical values T
A
= 25°C, for min/max values T
A
is the operating ambient temperature range that applies, unless otherwise noted.
Characteristics Symbol Min Typ Max Unit
PWM COMPARATOR SECTION (Test Circuit Figure 11)
Input Threshold Voltage (Zero Duty Cycle)
V
TH
− 3.6 4.5 V
Input Sink Current (V
Pin
3
= 0.7 V) I
I−
0.3 0.7 − mA
DEADTIME CONTROL SECTION (Test Circuit Figure 11)
Input Bias Current (Pin 4) (V
Pin
4
= 0 V to 5.25 V) I
IB
(DT)
− −2.0 −10
mA
Maximum Duty Cycle, Each Output, Push−Pull Mode
(V
Pin
4
= 0 V, C
T
= 0.01 mF, R
T
= 12 kW)
(V
Pin
4
= 0 V, C
T
= 0.001 mF, R
T
= 30 kW)
DC
max
45
−
48
45
50
−
%
Input Threshold Voltage (Pin 4)
(Zero Duty Cycle)
(Maximum Duty Cycle)
V
TH
−
0
2.8
−
3.3
−
V
OSCILLATOR SECTION
Frequency
(C
T
= 0.001 mF, R
T
= 30 kW)
(C
T
= 0.01 mF, R
T
= 12 kW, T
A
= 25°C)
(C
T
= 0.01 mF, R
T
= 12 kW, T
A
= T
low
to T
high
)
f
osc
−
9.2
9.0
40
10
−
−
10.8
12
kHz
Standard Deviation of Frequency* (C
T
= 0.001 mF, R
T
= 30 kW)
σf
osc
− 1.5 − %
Frequency Change with Voltage (V
CC
= 7.0 V to 40 V, T
A
= 25°C)
Df
osc
(DV)
− 0.2 1.0 %
Frequency Change with Temperature
(DT
A
= T
low
to T
high
, C
T
= 0.01 mF, R
T
= 12 kW)
Df
osc
(DT)
− 4.0 − %
UNDERVOLTAGE LOCKOUT SECTION
Turn−On Threshold (V
CC
Increasing, I
ref
= 1.0 mA)
T
A
= 25°C
T
A
= T
low
to T
high
V
th
4.0
3.5
5.2
−
6.0
6.5
V
Hysteresis
TL594C,I
TL594M
V
H
100
50
150
150
300
300
mV
TOTAL DEVICE
Standby Supply Current (Pin 6 at V
ref
, All other inputs and outputs open)
(V
CC
= 15 V)
(V
CC
= 40 V)
I
CC
−
−
8.0
8.0
15
18
mA
Average Supply Current (V
Pin
4
= 2.0 V, C
T
= 0.01 mF, R
T
= 12 kW,
V
CC
= 15 V, See Figure 11)
− 11 −
mA
*Standard deviation is a measure of the statistical distribution about the mean as derived from the formula, σ
N
n = 1
Σ (X
n
− X)
2
N − 1
P1-P3P4-P6P7-P9P10-P12

TL594CDR2G

Mfr. #:
Buy TL594CDR2G
Manufacturer:
ON Semiconductor
Description:
Switching Controllers 40kHz 200mA PWM w/48% Duty Cycle Max
Lifecycle:
New from this manufacturer.
Delivery:
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