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Uni- and Bipolar Hall IC Switches for Magnetic Field Applications
TLE 4905 G; TLE 4935 G TLE 4935-2 G; TLE 4945-2 G
Bipolar IC Features * * * * * * Temperature compensated magnetic performance Digital output signal For unipolar and alternating magnetic fields Large temperature range Protection against reversed polarity Output protection against electrical disturbances SOT-89
Type TLE 4905 G TLE 4935 G TLE 4935-2 G TLE 4945-2 G
Marking 05 35 35 2 45 2
Ordering Code Q62705-K402 Q62705-K404 Q62705-K405 Q62705-K403
Package SOT-89 SOT-89 SOT-89 SOT-89
TLE 4905/35/35-2/45-2 (Unipolar/Bipolar Magnetic Field Switches) have been designed specifically for automotive and industrial applications. Reverse polarity protection is included on-chip as is output protection against negative voltage transients. Typical applications are position/proximity indicators, brushless DC motor commutation, rotational indexing etc.
Data Sheet
1
2000-07-01
TLE 4905 G; TLE 4935 G TLE 4935-2 G; TLE 4945-2 G
Pin Configuration (top view)
2.25 0.2
Center of sensitive area
10.2
1
2
3
AEP02150
Figure 1
Pin Definitions and Funtions Pin No. 1 2 3 Symbol Function Supply voltage Ground Output
VS
GND Q
Data Sheet
2
2000-07-01
TLE 4905 G; TLE 4935 G TLE 4935-2 G; TLE 4945-2 G
Circuit Description The circuit includes Hall generator, amplifier and Schmitt-Trigger on one chip. The internal reference provides the supply voltage for the components. A magnetic field perpendicular to the chip surface induces a voltage at the hall probe. This voltage is amplified and switches a Schmitt-trigger with open-collector output. A protection diode against reverse power supply is integrated. The output is protected against electrical disturbances.
Threshold Generator
VS
1 HallGenerator
3
Q
VS VRef
Amplifier
SchmittTrigger Output Stage
AEB01243
2 GND
Figure 2
Block Diagram
Data Sheet
3
2000-07-01
TLE 4905 G; TLE 4935 G TLE 4935-2 G; TLE 4945-2 G
Functional Description Unipolar Type TLE 4905 (Figure 3 and 4) When a positive magnetic field is applied in the indicated direction (Figure 3) and the turn-on magnetic induction BOP is exceeded, the output of the Hall-effect IC will conduct (Operate Point). When the magnetic field is reduced to a value smaller than the release point, the output of the IC turns off (Release Point; Figure 4).
+ Branded Side
S
N
VQ
+
VS
-
AES01231
Figure 3
Sensor/Magnetic-Field Configuration
B
BOP BRP
0 Induction
t
VQ VQH
Output Voltage
VQL t
AED01420
Figure 4
Data Sheet
Switching Characteristics Unipolar Type
4 2000-07-01
TLE 4905 G; TLE 4935 G TLE 4935-2 G; TLE 4945-2 G
Functional Description Bipolar Type TLE 4935/35-2/45-2 (Figure 5 and 6) When a positive magnetic field is applied in the indicated direction (Figure 5) and the turn-on magnetic induction BOP is exceeded, the output of the Hall-effect IC will conduct (Operate Point). The output state does not change unless a reverse magnetic field exceeding the turn-off magnetic induction |BRP| is exceeded. In this case the output will turn off (Release Point; Figure 6).
+ Branded Side
S
N
VQ
+
VS
-
AES01231
Figure 5
Sensor/Magnetic-Field Configuration
B
BOP
0
t BRP
Induction
VQ VQH
Output Voltage
VQL t
AED01421
Figure 6
Data Sheet
Switching Characteristics Bipolar Type
5 2000-07-01
TLE 4905 G; TLE 4935 G TLE 4935-2 G; TLE 4945-2 G
Absolute Maximum Ratings Tj = - 40 to 150 C Parameter Supply voltage Supply voltage Output voltage Output current Output reverse current Junction temperature Storage temperature Thermal resistance Symbol Limit Values Unit Remarks min. max. 32 40 32 100 100 150 150 100 V V V mA mA C C - - 40 - - - - - 40 - 50
VS VS VQ IQ - IQ Tj Tstg Rth JA
t < 400 ms; = 0.1
- - - - -
K/W -
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.
Operating Range Parameter Supply voltage Junction temperature Symbol Limit Values Unit Remarks min. max. 24 150 V C - - 4.0 - 40
VS Tj
Note: In the operating range the functions given in the circuit description are fulfilled.
Data Sheet
6
2000-07-01
TLE 4905 G; TLE 4935 G TLE 4935-2 G; TLE 4945-2 G
AC/DC Characteristics 4.0 V VS 24 V; - 40 C Tj 150 C Parameter Supply current Symbol 1.6 - - - - - Limit Values min. typ. - 2.5 3.5 0.25 - - max. 5.0 - - 0.5 10 1 mA mA mA V A s Unit Test Condition Test Circuit 1 1 1 1 1 1
I ISHigh ISLow Output saturation VQSat
voltage Output leakage current Rise/fall time
B < BRP B > BOP
IQ = 40 mA VQ = 18 V
IQL tr / tf
RL = 1.2 k CL 33 pF
Note: The listed characteristics are ensured over the operating range of the integrated circuit. Typical characteristics specify mean values expected over the production spread. If not otherwise specified, typical characteristics apply at Tj = 25 C and the given supply voltage. Note: Moderate changes may occur during the development process or customer discussion.
Data Sheet
7
2000-07-01
TLE 4905 G; TLE 4935 G TLE 4935-2 G; TLE 4945-2 G
Magnetic Characteristics 4.0 V VS 24 V Parameter Symbol TLE 4905 unipolar min. Junction Temperature Tj = - 40 C Turn-ON induction Turn-OFF induction Hysteresis (BOP-BRP) BOP BRP BHY 7.5 5.5 2 19 17 6.5 10 - 20 20 20 - 10 40 15 - 27 30 27 - 15 54 -3 -6 1 6 3 5 mT mT mT max. Limit Values TLE 4935 TLE 4935-2 bipolar latch bipolar latch min. max. min. max. TLE 4945-2 bipolar switch min. max. Unit
Junction Temperature Tj = 25 C Turn-ON induction Turn-OFF induction Hysteresis (BOP-BRP) BOP BRP BHY 7 5 2 18 16 6 10 - 20 20 20 - 10 40 14 - 26 28 26 - 14 52 -3 -6 1 6 3 5 mT mT mT
Junction Temperature Tj = 85 C Turn-ON induction Turn-OFF induction Hysteresis (BOP-BRP) BOP BRP BHY 6.5 4.5 2 17.5 15 5.5 10 - 20 20 20 - 10 40 13 - 26 26 26 - 13 52 -3 -6 1 6 3 5 mT mT mT
Junction Temperature Tj = 150 C Turn-ON induction Turn-OFF induction Hysteresis (BOP-BRP) BOP BRP BHY 6 4 2 17 14 5 10 - 20 20 20 - 10 40 12 - 25 24 25 - 12 50 -3 -6 1 6 3 5 mT mT mT
Note: The listed characteristics are ensured over the operating range of the integrated circuit. Typical characteristics specify mean values expected over the production spread. If not otherwise specified, typical characteristics apply at Tj = 25 C and the given supply voltage.
Data Sheet
8
2000-07-01
TLE 4905 G; TLE 4935 G TLE 4935-2 G; TLE 4945-2 G
VS
S
+ 4.7 nF -
1
VS
RL CL
2
GND
TLE 4905/35/35-2/45-2
3
Q
Q
AES01244
Unipolar Type TLE 4905
VQ VQH VQH
Bipolar Type TLE 4935
VQ
VQL
0
VQL B RP B HY B OP B B RP
0 B HY
B OP
B
AED01422
VQ VQH
0.9 VQH
0.1VQH
t tr tf
AED01246
Figure 7
Data Sheet
Test Circuit 1
9 2000-07-01
TLE 4905 G; TLE 4935 G TLE 4935-2 G; TLE 4945-2 G
Mainframe
Line 1 4.7 nF 1.2 k 4.7 nF 2
Sensor
VS
VS
GND
TLE 4905/35/35-2/45-2
Signal
3
Q
AES01247
Figure 8
Application Circuit
Data Sheet
10
2000-07-01
TLE 4905 G; TLE 4935 G TLE 4935-2 G; TLE 4945-2 G
If not otherwise specified, all curves reflect typical values at Tj = 25 C and VS = 12 V
Quiescent Current Difference versus Temperature
1.0
AED01459
Saturation Voltage versus Output Current
1.2
AED02919
S
mA S = SLow - SHigh 0.75
VQ
V 1.0
__ 4.0 V < VS < 24 V
Q = 40 mA
0.8
0.5
0.6
T j = 125 C
0.4
0.25
0.2
T j = -40 C
0 -40
0
50
100
150 C 200
0
0
20
40
60
mA
100
Tj
Q
Quiescent Current versus Junction Temperature
S
8 mA
AED01249
TLE 4905 Operate-and Release-Point versus Junction Temperature
25
AED02912
B mT
VQ = High
20
__ 4.0 V < VS < 24 V
6
B OPmax
15
B RPmax
4
VS = 24 V
10
B OPtyp B RPtyp
2
VS = 4.0 V
5
B OPmin B RPmin
0 -50
0
50
100
C
Tj
200
0 -40
0
50
100
C
Tj
200
Data Sheet
11
2000-07-01
TLE 4905 G; TLE 4935 G TLE 4935-2 G; TLE 4945-2 G
TLE 4935 Operate-and Release-Point versus Junction Temperature
30
AED02913
TLE 4935-2 Operate-and Release-Point versus Junction Temperature
30
AED02914
B
mT 20
__ 4.0 V < VS < 24 V
B
mT 20
__ 4.0 V < VS < 24 V B OPmax
B OPmax B OPtyp
B OPtyp B OPmin
10
B OPmin
10
0
0
-10
B RPmax
-10
B RPmax
-20
B RPtyp B RPmin
B RPtyp
-20 -40 0 50 100
B RPmin 200 C
Tj
-30 -40
0
50
100
C
Tj
200
TLE 4905 Hysteresis versus Junction Temperature
8
AED02915
TLE 4945-2 Operate-and Release-Point versus Junction Temperature
18
AED02916
B
mT 6
__ 4.0 V < VS < 24 V
B
mT 12
__ 4.0 V < VS < 24 V
B HYmax
4
6
B OPmax B RPmax B OPtyp B RPtyp B OPmin
0
B HYtyp
-6
2
B RPmin
B HYmin
-12
0 -40
0
50
100
C
Tj
200
-18 -40
0
50
100
C
Tj
200
Data Sheet
12
2000-07-01
TLE 4905 G; TLE 4935 G TLE 4935-2 G; TLE 4945-2 G
Package Outline SOT-89 (SMD) (Plastic Small Outline Transistor Package)
4.5 45 0.25 0.5 +0.2 acc. to DIN 6784 B 0.15 1.5 0.1 1.6 0.2
10 max
2.5 0.1
4 0.25
0.15 0.45 +0.2 -0.1 1.5
M
B
0.35 0.1
0.2 B
Package Information
d: Distance chip to upper side of IC SOT-89: 1.05 mm
d
AEA02487
Sorts of Packing Package outlines for tubes, trays etc. are contained in our Data Book "Package Information". SMD = Surface Mounted Device Data Sheet 13
Dimensions in mm 2000-07-01
GPS05558
3
1.0 0.2
2.75 +0.1 -0.15

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