Document
Dual Voltage Regulator with 5 V and 15 V Outputs
TLE 4484
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Features • • • • • • • • Dual output: 5 V and 15 V High input voltage range: up to 45 V High output current capability High output voltage accuracy Very low current consumption Short circuit protected Over-temperature protected Thermal and space optimized package Ordering Code Q67006-A9396
SOT-223
Type TLE 4484 G Functional Description
Package P-SOT223-4-2 (SMD)
The TLE 4484 G is a monolithic integrated voltage regulator providing two output voltages, output Q5 is a 5 V output for loads up to 25 mA and output Q15 is a 15 V output providing up to 30 mA. The device is based on the Infineon double isolated bipolar technology DOPL with high accuracy polysilicon resistors and is available in the SOT223 (SMD) package. The TLE 4484 G is designed to supply systems with a microcontroller (5 V) and a standard MOS-driver-IC (15 V) under severe conditions and is therefore equipped with additional protection functions. Both outputs are protected against overload, short circuit to ground and to the input voltage. A build-in shutdown-circuit protects the device against overheat. The IC operates in a wide input voltage range up to 45 V. The output voltages are regulated to VQ5 = 5 V and VQ15 = 15 V with a drop voltage less than 1.5 V. The standard SOT223 (SMD) package is especially suitable for this kind of application, saves PCB-board-space and reduces system cost.
Data Sheet Rev. 1.0
1
2000-08-04
TLE 4484
Pin Configuration (top view)
GND
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4 1 2 3
I
Q5
Q15
AEP02857
Figure 1 Pin Definitions and Functions Pin No. 1 2 3 4 Symbol I Q5 Q15 GND Function Input voltage; block to ground directly at the IC with a ceramic capacitor. Output voltage for microcontroller and logic circuit; block to ground with a ceramic capacitor. Output voltage for MOS driver circuit; block to ground with a ceramic capacitor. Ground
Data Sheet Rev. 1.0
2
2000-08-04
TLE 4484
I
Q5
Overcurrent Protection
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Buffer Reference 1.25 V
Thermal Protection Q15
Overcurrent Protection Buffer
Reference 1.25 V
GND
AEB02862
Figure 2
Block Diagram
Data Sheet Rev. 1.0
3
2000-08-04
TLE 4484
Absolute Maximum Ratings Parameter Symbol Limit Values min. Input Voltage
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Unit
Remarks
max.
Current Output Q5 Voltage Current Output Q15 Voltage Current GND Current Temperatures Junction temperature Storage temperature
VI II
– 0.3 –
45 –
V –
– internally limited
VQ5 IQ5
–1 –
45 –
V –
VQ5 < VI
internally limited
VQ15 IQ15
–1 –
45 –
V –
VQ15 < VI
internally limited
IGND
–5
5
mA
–
Tj Tstg
– 50 – 50
150 150
°C °C
1)
–
ESD-Protection (Human Body Model) all pins
1)
VESD
–2
2
kV
The overtemperature protection will be set to 150 °C min. The voltage regulator should not be operated continuously at 170 °C as device reliability will be reduced to 500 h.
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 Rev. 1.0
4
2000-08-04
TLE 4484
Operating Range Parameter Output Q5 input voltage Output Q15 input voltage Junction temperature
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Symbol
Limit Values min. max. 45 45 150 6.5 16.5 – 40
Unit V V °C
Remarks – – –
VI1 VI1 Tj
Thermal Resistances Junction ambient
Rth,j-a
–
165
K/W
zero airflow, zero heat sink area
Note: In the operating range, the functions given in the circuit description are fulfilled.
Data Sheet Rev. 1.0
5
2000-08-04
TLE 4484
Electrical Characteristics 17 V < VI < 42 V; – 40 °C < Tj < 125 °C; all voltages with respect to ground; positive current defined flowing out of pin; unless otherwise specified. Parameter Symbol Limit Values min. Current Consumption Quiescent current; Iq = II – (IQ5 + IQ15) Quiescent current; Iq = II – (IQ5 + IQ15) 5 V Output Q5 Output voltage Output voltage Output current limitation Output current limitation Output drop voltage; VDRQ5 = VI – VQ5 Load regulation Line regulation typ. max. Unit Test Condition
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Iq Iq
– –
450
550
µA mA
0.76 1
IQ5 = 1 mA; IQ15 = 1 mA IQ5 = 25 mA; IQ15 = 30 mA
VQ5 VQ5 IQ5 IQ5 VDRQ5
∆VQ5 ∆VQ5
4.85 4.75 16 30 – – – – 1.0 –
5.00 – 40 – 0.9 25 20 50 – –
5.15 5.25 – – 1.5 50 50 – – 2.0
V V mA mA V mV mV dB µF Ω
IQ5 = 10 mA; Tj = 25 °C 1 mA < IQ5 < 25 mA
1)
Tj = 25 °C IQ5 = 25 mA1)
1 mA < IQ5 < 25 mA; VI = 17 V
Power-Supply-Ripple PSRR5 -Rejection Value of output cap ESR of output cap
IQ5 = 1 mA; 7 V < VI < 27 V 20 Hz < fr < 20 kHz; Vr = 5 VSS
– –
CQ5 RESRQ5
Data Sheet Rev. 1.0
6
2000-08-04
TLE 4484
Electrical Characteristics (cont’d) 17 V < VI < 42 V; – 40 °C < Tj < 125 °C; all voltages with respect to ground; positive current defined flowing out of pin; unless otherwise specified. Parameter Symbol Limit Values min. 15 V Output Q15 Output voltage Output voltage Output current limitation Output drop voltage; VDRQ15 = .