UNISONIC TECHNOLOGIES CO., LTD
TL5001
PULSE-WIDTH-MODULATION
CONTROL CIRCUITS
DESCRIPTION
The UTC
TL5001
incorporates on a single monolithic chip all the
functions required for a pulse width modulation (PWM) control circuit.
Designed primarily for power-supply control, It contains an error
amplifier, a regulator, an oscillator, a PWM comparator with a
dead-time-control input, undervoltage lockout (UVLO), short-circuit
protection (SCP), and an open-collector output transistor.
The error-amplifier common-mode voltage ranges from 0V to 1.5V.
The noninverting input of the error amplifier is connected to a 1-V
reference. Dead-time control (DTC) can be set to provide 0% to
100% dead time by connecting an external resistor between DTC
and GND. The oscillator frequency is set by terminating RT with an
external resistor to GND. During low Vcc conditions, the UVLO
circuit turns the output off until Vcc recovers to its normal operating
range.
LINEAR INTEGRATED CIRCUIT
DIP-8
SOP-8
*Pb-free plating product number: TL5001L
FEATURES
*Complete PWM power control
*3.6-V to 40-V operation
*Internal under voltage-lockout circuit
*Internal short-circuit protection
*Oscillator frequency : 20kHz to 500kHz
*Variable dead timer provides control over total range
ORDERING INFORMATION
Ordering Number
Normal
Lead Free Plating
TL5001-D08-T
TL5001L-D08-T
TL5001-S08-R
TL5001L-S08-R
TL5001-S08-T
TL5001L-S08-T
Package
DIP-8
SOP-8
SOP-8
Packing
Tube
Tape Reel
Tube
TL5001L-D08-R
(1)Packing Type
(2)Package Type
(3)Lead Plating
(1) R: Tape Reel, T: Tube
(2) D08: DIP-8, S08: SOP-8
(3) L: Lead Free Plating Blank: Pb/Sn
,
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QW-R103-016,B
TL5001
PIN CONFIGURATION
LINEAR INTEGRATED CIRCUIT
V
OUT
V
CC
1
2
8
7
GND
RT
DTC
COMP
FB
3
4
6
5
SCP
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QW-R103-016,B
TL5001
PARAMETER
LINEAR INTEGRATED CIRCUIT
ABSOLUTE MAXIMUM RATINGS OVER OPERATING FREE-AIR TEMPERATURE
RANGE
(unless otherwise specified)*
Supply Voltage (note 1)
Amplifier Input Voltage
Output Voltage
Output Current
Output Peak Current
Continuous Total Power Dissipation
Operating Ambient Temperature Range
T
OPR
°C
Storage Temperature Range
T
STG
°C
Note 1. All voltage values are with respect to the network ground terminal.
2. Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.
* Stresses beyond those listed under” absolute maximum ratings” may cause permanent damage to the device.
These are stress ratings only, and functional operation of the device at these or any other conditions beyond
those indicated under” recommended operating conditions” is not implied. Exposure to
absolute-maximum-rated conditions for extended periods may affect device reliability.
SYMBOL
V
CC
V
I(FB)
V
OUT
I
OUT
I
O(PEAK)
RATINGS
41
20
51
21
100
See dissipation rating table
-20 ~ +85
-65 ~ +150
UNIT
V
V
V
mA
mA
DISSIPATION RATING TABLE
PACKAGE
DIP-8
SOP-8
T
A
≤25°C
POWER RATING
1000mW
725mW
DERATING FACTOR
ABOVE T
A
=25°C
8.0mW/°C
5.8mW/°C
T
A
=70°C
POWER RATING
640mW
464mW
T
A
=70°C
T
A
=70°C
POWER RATING POWER RATING
520mW
200mW
377mW
145mW
RECOMMENDED OPERATING CONDITIONS
PARAMETER
Supply Voltage
Amplifier Input Voltage
Output Voltage
Output Current
COMP Source Current
COMP dc Load Resistance
Oscillator Timing resistor
Oscillator Frequency
Operating Ambient Temperature Range
SYMBOL
V
CC
V
I(FB)
V
OUT
I
OUT
MIN
3.6
0
MAX
40
1.5
50
20
45
250
500
85
UNIT
V
V
V
mA
μA
kΩ
kΩ
kHz
°C
Rt
fosc
T
A
100
15
20
-20
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QW-R103-016,B
TL5001
PARAMETER
Reference
Output Voltage
Input Regulation
Output Voltage Change with Temperature
Undervoltage Lockout
Threshold Voltage
Upper
Lower
Reset
V
THR
T
A
= 25°C
T
A
= 25°C
T
A
= 25°C
T
A
= 25°C
T
A
= 25°C
No pullup
No pullup
T
A
= 25°C
SYMBOL
V
OUT
LINEAR INTEGRATED CIRCUIT
ELECTRICAL CHARACTERISTICS OVER RECOMMENDED OPERATING FREE-AIR
TEMPERATURE RANGE
(Vcc=6V, fosc=100kHz, all typical values at T
A
=25°C, unless otherwise noted)
TEST CONDITIONS
COMP Connected to FB
Vcc=3.6V ~ 40V
T
A
= -20°C ~ 25°C
T
A
= 25°C ~ 85°C
MIN
0.95
-10
-10
TYP
1
2
-1
2
3
2.8
2.55
200
1.00
185
60
-15
1.5
100
15
1
-0.4
-0.4
-0.2
1
1.05
230
120
-20
MAX
1.05
12.5
10
10
UNIT
V
mV
mV/V
V
V
V
mV
V
mV
mV
µA
V
kHz
kHz
kHz
kHz
kHz
kHz
V
µA
V
V
nA
V
V
dB
MHz
µA
µA
V
µA
mA
1.5
2.1
mA
mA
Hysteresis
Short Circuit Protection
SCP Threshold voltage
SCP Voltage, Latched
SCP Voltage, UVLO Standby
Input Source Current
SCP Comparator 1 Threshold Voltage
Oscillator
Frequency
Standard Deviation of Frequency
Frequency Change with Voltage
Frequency Change with Temperature
Voltage at RT
Dead-time Control
Output (source) Current
Input Threshold Voltage
Error Amplifier
Input Voltage
Input Bias Current
Positive
Negative
Open-Loop Voltage Amplification
Unity-Gain Bandwidth
Output (sink) Current
Output (source) Current
Output
Output Saturation Voltage
Output Voltage Swing
Off-State Current
Short-Circuit Output Current
Total Device
Standby Supply Current (Off state)
Average Supply Current
Note: Output source current at RT
2.1
100
0.95
140
-10
f
Rt=100kΩ
Vcc=3.6V ~ 40V
T
A
= -40°C ~ 25°C
T
A
= -20°C ~ 25°C
T
A
= 25°C ~ 85°C
-4
-4
-4
4
4
4
V
RT
I
O(SOURCE)
V
I(THR)
V
IN
I
I(BIAS)
V
O(SW)
G
V
I
O(SINK)
I
O(SOURCE)
V
O(SAT)
I
OFF
I
O(SC)
I
STN-BY
Rt=100kΩ
V
I(FB)
=1.2V, COMP=1V
V
I(FB)
=0.8V, COMP=1V
I
OUT
=10mA
V
OUT
=50V,Vcc=0
V
OU
T=50V
V
OUT
=6V
100
-45
1.5
V
(DT)
=1.5V
Duty cycle=0%
Duty cycle=100%
Vcc=3.6V ~ 40V
0.9*I
RT
(NOTE)
1.1*I
RT
(NOTE)
0.5
0.7
1.3
1.5
1.5
-500
0.4
0
-160
2.3
0.3
80
1.5
600
-70
1.5
2
10
10
40
1
1.4
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QW-R103-016,B
TL5001
SCHEMATIC FOR TYPICAL APPLICATION
V
IN
+
LINEAR INTEGRATED CIRCUIT
TSP1101
2
5
V
CC
SCP
V
OUT
COMP
V
OUT
+
1
3
UTC
TL5001
6
7
DTC
RT
GND
8
FB
4
FUNCTIONAL BLOCK DIAGRAM
V
CC
2
UVLO
I
DT
2.5V
Reference
1.5V Voltage 1V
Error
Amplifier
+
FB 4
-
COMP 3
scp
Comparator 1
OSC
PWM/DTC
Comparator
1V
RT
7
DTC
6
OUT
1
SCP
5
scp
Comparator 2
8
GND
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QW-R103-016,B
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