FS177 [FEELING]
Low Voltage Hall Effect Latch;
| 型号： | FS177 |
| 厂家： | 
Feeling Technology |
| 描述： | Low Voltage Hall Effect Latch |
| 文件： | 总10页 (文件大小：225K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
FS177
Low Voltage Hall Effect Latch
Technology
General Description
The FS177 is an integrated Hall effect latched sensor designed for electronic commutation of
brush-less DC motor applications. The device includes an on-chip Hall voltage generator for
magnetic sensing, a comparator that amplifies the Hall voltage, and a Schmitt trigger to provide
switching hysteresis for noise rejection, and open-collector output. An internal bandgap regulator
is used to provide temperature compensated supply voltage for internal circuits and allows a wide
operating supply range.
A north pole of sufficient strength will turn the output ON. In the absence of a magnetic field, the
output is OFF.
Features
Wide operating voltage range: 3.0V to 20V
Maximum output sink current 25mA
Open-Collector pre-driver
Reverse polarity protection
Package : TO-92SP-3
TO-92SP-3
Typical Application Circuit
+12V
R1
L1
L2
FS177
R2
1
3
Output
Vcc
Gnd
2
C1
C2
Brushless DC Fan
Rev0.7 Apr. 25, 2012(LF)
FS177 Data Sheet
Page 1 / 10
FS177
Low Voltage Hall Effect Latch
Technology
Functional Block Diagram
VCC
1
Regulator
Hall
Sensor
Output
3
2
Gnd
Mark View
Pin Descriptions
NAME NO. STATUS
DESCRIPTION
IC Power Supply
177
VCC
GND
1
2
3
P
P
O
.
IC Ground
It is low state during the N magnetic
field.
Output
2
3
1
Year
Product Ver.
Week of Year
Ex: 1 (2001)
2 (2002)
Rev0.7 Apr. 25, 2012(LF)
FS177 Data Sheet
Page 2 / 10
FS177
Low Voltage Hall Effect Latch
Technology
Absolute Maximum Ratings ( at Ta = 25 oC )
VCC Pin Voltage ------------------------------------------------------------------------------
Output OFF Voltage, Vce -------------------------------------------------------------------
Output ON Current (Io)
20V
20V
Continuous Current ----------------------------------------------------------------
Power Dissipation
25mA
Ta=25 oC ------------------------------------------------------------------------------
Ta=100 oC ----------------------------------------------------------------------------
Thermal Resistance
400mW
178mW
Θja= ----------------------------------------------------------------------------------- 0.34 oC/mW
Θjc= ----------------------------------------------------------------------------------- 0.42 oC/mW
Operating Temperature Range ----------------------------------------------------
Storage Temperature Range -------------------------------------------------------
-20 oC to 100 oC
-65 oC to 150 oC
Junction Temperature -----------------------------------------------------------------------
Lead Temperature (Soldering, 10 sec) --------------------------------------------------
+160oC
+260 oC
oC
255 ± 5
10 ± 1 sec
150 ± 10o
C
90 ± 30 sec
2 ~ 5 o / sec
2 ~ 5 oC / sec
C
SECOND
Soldering Condition
Rev0.7 Apr. 25, 2012(LF)
FS177 Data Sheet
Page 3 / 10
FS177
Low Voltage Hall Effect Latch
Technology
DC Electrical Characteristics (at Ta = 25 oC)
PARAMETER
Operating Voltage
Supply current
SYMBOL
TEST CONDITIONS
MIN TYP MAX UNIT
VCC
No use pin is open (Fig1) 3.0
-
20.0
10
V
No use pin is open Vcc :
3.0V to 20V (Fig1)
ICC
-
4.2
mA
mV
uS
nS
Output Saturation Voltage
Output Rise time
VSAT Vcc=12V, Io = 20mA
-
165 200
RL=500ohm, CL=20pF
(Fig1)
(tr)
0.2
20
-
-
0.75
150
RL=500ohm, CL=20pF
(Fig1)
Output Fall time
(tƒ )
Note: Fig1 The IC output state is under N magnetic field.
Power Dissipation Curve
Pd (mW)
400
326
252
178
104
o
C
160
30
0
175
0
25
50
75
100
125
150
o
Temp. (
)
C
Rev0.7 Apr. 25, 2012(LF)
FS177 Data Sheet
Page 4 / 10
FS177
Low Voltage Hall Effect Latch
Technology
Magnetic Characteristics (1mT=10Gauss)
FS177LF- A
Ta = -20 oC to 100 oC
Parameter
Operate Point
Release Point
Hysteresis
Symbol
Bop
Min.
+5
Typ
+35
-30
Max.
+60
-5
Unit
Gauss
Gauss
Gauss
Brp
-60
30
Bhys
120
FS177LF- B
Parameter
Ta = -20 oC to 100 oC
Symbol
Bop
Min.
+5
Typ
Max.
+80
-5
Unit
Operate Point
Release Point
Hysteresis
-
-
Gauss
Gauss
Gauss
Brp
-80
30
Bhys
120
FS177LF- C
Parameter
Ta = -20 oC to 100 oC
Symbol
Bop
Min.
-
Typ
Max.
+100
-
Unit
Operate Point
Release Point
Hysteresis
-
-
Gauss
Gauss
Gauss
Brp
-100
30
Bhys
120
FS177 Magnetic Hysteresis Characteristics Diagram：
Vout
Vsat
B (Magnetic)
-S
-S
0
+N +N
Magnetic Flux Density in Gauss
Rev0.7 Apr. 25, 2012(LF)
FS177 Data Sheet
Page 5 / 10
FS177
Low Voltage Hall Effect Latch
Technology
Test Circuits
+12V
RL
FS177
1
3
Output
Vcc
Vout
Gnd
2
CL
Fig 1
Rev0.7 Apr. 25, 2012(LF)
FS177 Data Sheet
Page 6 / 10
FS177
Low Voltage Hall Effect Latch
Technology
Typical Characteristics
7
400
350
300
250
200
150
100
0
6
5
4
3
2
1
0
0
3
6
9
12
15
20
0
10
20
30
40
50
60
VCC - V
Figure 1
Iout - mA
Figure 2
74
72
70
68
66
64
62
60
70
65
60
55
50
45
40
35
30
25
20
0
3
6
9
12
15
20
-25
0
25
50
75
100
125
TEMPERATURE - oC
VCC - V
Figure 3
Figure 4
-45
-40
-35
-30
-25
-20
-15
-10
110
100
90
80
70
60
50
40
-25
0
25
50
75
100
125
-25
0
25
50
75
100
125
TEMPERATURE - oC
TEMPERATURE - oC
Figure 5
Figure 6
Rev0.7 Apr. 25, 2012(LF)
FS177 Data Sheet
Page 7 / 10
FS177
Low Voltage Hall Effect Latch
Technology
HALL SENSOR LOCATION
The Fig 2 is the hall sensor location, where marks the IC number.
X
UNIT
Y
mm
mm
X
Y
2.1
1.55
Fig 2 FS177 Hall Sensor Location
Package Outline (LEAD FREE)
Rev0.7 Apr. 25, 2012(LF)
FS177 Data Sheet
Page 8 / 10
FS177
Low Voltage Hall Effect Latch
Technology
LABEL SPECIFICATIONS
Rev0.7 Apr. 25, 2012(LF)
FS177 Data Sheet
Page 9 / 10
FS177
Low Voltage Hall Effect Latch
Technology
7.5 cm
Feeling Technology Corp.
Product Type: FS177LF- X
Lot No:
XXXXXXXXX
XXX
5.5 cm
Date Code:
Package Type:
Marking Type:
Tatal Q'ty:
SIP- 3L
XXXXX
無鉛
Lead Free
XXXXX
BAG LABEL, INSIDE BOX & CARTON LABEL
ORDER INFORMATION
Part Number
Operating Temperature
Package
Description
FS177LF- A
-20 oC to +100 oC
TO-92SP-3
± 60G (B)
FS177LF- B
FS177LF- C
-20 oC to +100 oC
-20 oC to +100 oC
TO-92SP-3
TO-92SP-3
± 80G (B)
±100G (B)
Rev0.7 Apr. 25, 2012(LF)
FS177 Data Sheet
Page 10 / 10
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