Voltage Regulator
TLE 4284
Features
•
•
•
•
•
•
•
•
•
•
Adjustable output voltage or
1.5V, 1.8V, 2.6V, 3.3 V, 5.0V output voltage
1.0 A output current
Low dropout voltage, typ. 1 V
Short circuit protection
Overtemperature protection
Wide operating range up to 40 V
Wide temperature range of Tj = -40 to 150 °C
Suitable for use in automotive electronics
Green Product (RoHS compliant)
AEC Qualified
PG-TO-252-3
Functional Description
The TLE 4284 is a monolithic integrated NPN type voltage regulator that can supply
loads up to 1.0 A. The chip is housed in a surface mounted PG-TO252-3-11 package
(DPAK). It is designed to supply microprocessor systems or other loads under the severe
conditions of automotive applications and therefore it is equipped with additional
protection against overload, short circuit and overtemperature.
An input voltage VI in the range of (VQ + VDR) < VI < 40 V is regulated to VQ. The dropout
voltage VDR ranges from 1.1 V to 1.4 V depending on the load current level.
The device operates in the temperature range of Tj = -40 to 150 °C.
Type
Package
Marking
TLE 4284 DV
PG-TO252-3-11
4284V
TLE 4284 DV15
PG-TO252-3-11
4284V15
TLE 4284 DV18
PG-TO252-3-11
4284V18
TLE 4284 DV26
PG-TO252-3-11
4284V26
TLE 4284 DV33
PG-TO252-3-11
4284V33
TLE 4284 DV50
PG-TO252-3-11
4284V50
Data Sheet
1
Rev. 2.1, 2007-03-20
TLE 4284
I
Q
Control
with
Overtemperature
Protection;
Overcurrent
Protection
Internal
Reference
GND
AES02840
I
Q
Control
with
Overtemperature
Protection;
Overcurrent
Protection
Adjust
Internal
Reference
AES02839
Figure 1
Data Sheet
Block Diagram for Fixed and Adjustable Output Voltage TLE 4284
2
Rev. 2.1, 2007-03-20
TLE 4284
Fixed Output
Voltage Version
Adjustable Output
Voltage Version
Q
Q
1
1
Q
Q
GND
ADJ
I
I
AEP02821
AEP02817
Figure 2
Pin Configuration (top view)
Table 1
Pin Definitions and Functions Fixed Output Voltage Versions
Pin No.
Symbol
Function
1
GND
Ground
2, Tab
Q
Output; Connect output pin to GND via a capacitor CQ ≥ 10 µF
with ESR ≤ 10 Ω.
Connect to heatsink area.
3
I
Input
Table 2
Pin Definitions and Functions Adjustable Output Version
Pin No.
Symbol
Function
1
ADJ
Adjust; defines output voltage by external voltage divider
between Q, ADJ and GND.
2, Tab
Q
Output; the output voltage is defined by the external voltage
divider between Q, Adjust and Ground.
Connect the output pin to GND via a capacitor CQ ≥ 10 µF
with ESR ≤ 10 Ω.
Connect to heatsink area.
3
I
Input
Data Sheet
3
Rev. 2.1, 2007-03-20
TLE 4284
Table 3
Absolute Maximum Ratings
Parameter
Symbol
Limit Values
Min.
Unit
Test Condition
Max.
Input - Output Voltage Difference (variable device only)
VI - VQ
-0.3
40
V
–
VI
-0.3
40
V
–
-0.3
40
V
–
–
–
–
Internally limited
VADJ
IADJ
-0.3
40
V
–
–
–
–
Internally limited
Human Body Model
(HBM)1)
Class
–
3
–
–
Voltage
–
4
kV
–
Charged Device
Model (CDM)2)
Class
–
F5
–
–
Voltage
–
1
kV
–
-50
150
°C
–
-40
150
°C
–
Voltage
Input Voltage
Voltage
Output (fixed voltage version only)
Voltage
Current
VQ
IQ
Adjust (variable version only)
Voltage
Current
ESD Susceptibility
Temperature
Tstg
Junction temperature Tj
Storage temperature
1) ESD HBM test according to JEDEC JESD22-A114
2) ESD CDM test according to JEDEC JESD22-C101
Note: Stresses above those listed here may cause permanent damage to the device.
Exposure to absolute maximum rating conditions for extended periods may affect
device reliability.
Data Sheet
4
Rev. 2.1, 2007-03-20
TLE 4284
Table 4
Operating Range
Parameter
Symbol
Limit Values
Min.
Max.
Unit
Remarks
Input voltage
VI
VQnom +
VDR
40
V
–
Junction temperature
Tj
-40
150
°C
–
Rthja
–
144
K/W
PG-TO252-3-11
footprint only1)
–
78
K/W
PG-TO252-3-11
300 mm2 heat sink
area 1)
–
54
K/W
PG-TO252-3-11
600 mm2 heat sink
area 1)
–
4
K/W
–
Thermal Resistance
Junction ambient
Junction case
Rthjc
1) FR4, 80 x 80 x 1.5mm2, 35µm Cu, 5µm Sn, horizontal position, zero airflow
Note: Within the operating range, the functions given in the circuit description are
fulfilled.
The values listed in the “Electrical Characteristics” tables are ensured over the
operating range of the integrated circuit unless otherwise specified. Typical
characteristics specify mean values expected over the production spread. If not
otherwise specified, typical characteristics apply at TA = 25 °C and the given
supply voltage.
Data Sheet
5
Rev. 2.1, 2007-03-20
TLE 4284
Table 5 Electrical Characteristics TLE 4284 DV (adjustable output voltage)
-40 °C < Tj < 150 °C; VI - VQ = 13.5 V, IQ = 10 mA; unless otherwise specified
Parameter
Symbol
Reference voltage
VREF 1) 1.20 1.25
∆VQ
–
0.5
∆VQ
–
0.2
Line regulation
Load regulation
Dropout voltage
VDR
Current consumption Iq
Iq = II – IQ
Adjust current
IADJ
Adjust current
change
∆IADJ
Temperature stability –
Minimum
IQ
6)
load current
Current limit
RMS Output Noise
Data Sheet
IQmax
–
Limit Values
Unit Measuring Conditions
min. typ. max.
1.30
1.50
0.4
V
% 2)
% 2)
–
3 V ≤ (VI – VQ) ≤ 40 V
10 mA ≤ IQ ≤ 800 mA; 4)
VI = 3.0 V; VQ = VREF
10 mA ≤ IQ ≤ 1.0 A; 4)
VI = 3.0 V; VQ = VREF
IQ = 100 mA 3)
IQ = 500 mA 3)
–
0.25
0.5
% 2)
–
–
1.00
1.05
1.20
1.30
V
V
–
–
1.10
1.30
1.35
1.40
V
V
–
100
120
µA
IQ = 800 mA 3)
IQ = 1.0 A 3)
IQ = 10 mA;
–
–
75
2
120
5
µA
µA
IQ = 10 mA
IQ = 10 mA
3 V ≤ (VI – VQ) ≤ 40 V 4)
–
2
5
µA
10 mA ≤ IQ ≤ 200 mA;
VI - VQ = 3 V 4)
–
–
0.6
1
–
5
%
mA
5)
VI < 40 V;
VQ = VREF
2200 mA 1.4V < VI - VQ < 18V;
VQ = Vnom -100 mV
–
mA VI = 40 V;
VQ = Vnom -100 mV
Tj = 25 °C
–
ppm ppm of VQ; Tj = 25 °C;
10 Hz ≤ f ≤ 10kHz 5)
1000 –
50
200
–
30
6
Rev. 2.1, 2007-03-20
TLE 4284
Table 5 Electrical Characteristics TLE 4284 DV (adjustable output voltage)
-40 °C < Tj < 150 °C; VI - VQ = 13.5 V, IQ = 10 mA; unless otherwise specified
Parameter
Symbol
Power Supply Ripple PSRR
Rejection
Limit Values
Unit Measuring Conditions
min. typ. max.
–
65
–
dB
–
65
–
dB
VQ = 10 V, fr = 120 Hz,
Vr = 0.5 VPP, CADJ = 0 µF 5)
VQ = 10 V, fr = 120 Hz,
Vr = 0.5 VPP, CADJ = 10 µF 5)
1) VREF = VQ – VADJ
2) Related to VQ, measured at constant junction Temperature
3) Dropout voltage measured when the output voltage has dropped 100 mV from the nominal value
obtained at VQ = VREF.
4) Constant Junction Temperature
5) Not subject to production test - specified by design.
6) Minimum Output Current to maintain regulation
Table 6 Electrical Characteristics TLE 4284 DV15 (1.5 V fixed output voltage)
-40 °C < Tj < 150 °C; VI = 13.5 V, IQ = 10 mA; unless otherwise specified
Parameter
Output voltage
Symbol
VQ
Limit Values
Unit
Measuring Conditions
min. typ.
max.
1.45
1.5
1.55
V
10 mA ≤ IQ ≤ 1000 mA;
2.9 V ≤ VI ≤ 16 V
–
1.5
–
V
10 mA ≤ IQ ≤ 1000 mA;
16 V ≤ VI ≤ 40 V 1)
Line regulation
∆VQ
–
4.8
22.5
mV
2.9 V ≤ VI ≤ 40 V
Load regulation
∆VQ
–
2.6
5.2
mV
10 mA ≤ IQ ≤ 800 mA; 2)
VI = VQnom + VDR
–
3.1
6.25
mV
10 mA ≤ IQ ≤ 1.0 A 2)
VI = VQnom + VDR
–
1.00
1.20
V
–
1.05
1.30
V
–
1.10
1.35
V
–
1.30
1.40
V
IQ = 100 mA 3)
IQ = 500 mA 3)
IQ = 800 mA 3)
IQ = 1.0 A 3)
IQ = 10 mA
Dropout voltage
VDR
Current consumption
Iq = II – IQ
Iq
–
0.8
1.6
mA
Temperature stability
–
–
8.8
–
mV
Data Sheet
7
4)
Rev. 2.1, 2007-03-20
TLE 4284
Table 6 Electrical Characteristics TLE 4284 DV15 (1.5 V fixed output voltage)
-40 °C < Tj < 150 °C; VI = 13.5 V, IQ = 10 mA; unless otherwise specified
Parameter
Current limit
Symbol
IQmax
Limit Values
Unit
min. typ.
max.
1000 –
2200 mA
50
200
–
mA
RMS Output Noise
–
–
30
–
ppm
Power Supply Ripple
Rejection
PSRR
–
65
–
dB
–
65
–
dB
Measuring Conditions
VI – VQ
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