FD2157H [FEELING]
Smart motor driver with embedded Hall sensor;
| 型号： | FD2157H |
| 厂家： | 
Feeling Technology |
| 描述： | Smart motor driver with embedded Hall sensor |
| 文件： | 总11页 (文件大小：243K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
FEELING
FD2157H
Smart motor driver with embedded Hall sensor
Features
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
Motor driver with high sensitivity Hall-effect sensor
Open drain MOS driver output
Halogen Free
Lock-shutdown protection & auto-restart function
“Soft-switch” phase-switching technique to reduce vibration and acoustic noise
Thermal shutdown protection(TSD)
Available in SIP-4L package
For 24V DC motor / FAN systems
General Description
FD2157H is a two-phase half wave motor driver with embedded Hall-effect sensor IC. It integrates a open drain
MOS driver, a high sensitivity hall-effect sensor, an event timer for rotor locked in SIP-4L package, which make the
motors’ PCBs(printed circuit boards) design easy and fabricate the high efficiency and high voltage DC motors or
FANs as simply as possible.
For safety, Lock-shutdown function would turn the IC’s internal drivers off avoiding over-heat when the rotor is
locked, and IC will try to re-start the rotor’s torque after the time of these drivers’ shutdown.
Thermal-shutdown protection (TSD) ensures the internal drivers of IC are operating under a safe operating
temperature range.
All the protection mechanisms mentioned above combine to provide a complete protecting scenario in the motor
system and avoid any possible damages and guarantee under a correct and safe operation.
Block Diagram
Bias Generator
Chopper Amplifier
Hall Plate
Oscillator
Open Drain
MOS Driver
Digital Control Logic
(Event Timer)
Power On
Reset
Figure.1
This datasheet contains new product information. Feeling Technology reserves the rights to modify the product specification without notice.
No liability is assumed as a result of the use of this product. No rights under any patent accompany the sales of the product.
Rev1.2 Jul. 06, 2009
P.1
FEELING
Pin Connection
FD2157H
Marking Distinguish
2157H
2157H
YMV-XX
YMV-XX
1
2
3
4
Lot Number
Mass Production Version
Half month(ex:A,B ~ X)
Year (ex:2008
8)
Figure.2
Figure.3
Pin Descriptions
Name
VDD
NO
I/O
P
FD2157H
Description
1
2
3
4
Positive Power Supply
Driver Output 1
Driver Output 2
Ground
O
SO
O
VSS
G
Legend: I=input, O=output, I/O=input/output, P=power supply, G=ground
Functional Descriptions
Refer to the block diagram (Figure.1), FD2157H is composed of the following building blocks:
ꢀ
Bias Generator
The bias generator provides precise, temperature- and process-insensitive bias references for the analog blocks.
These references guarantee proper operation of the IC under all conditions specified in this specification.
ꢀ
Oscillator
The built-in oscillator provides the clock signal for the digital control logic.
Power On Reset
ꢀ
Used to detect the power-up ramp and reset the digital circuits to achieve correct operation as soon as the power is
ready.
ꢀ
Chopper Amplifier
To achieve a higher magnetic sensitivity the chopper amplifier structure is adopted in this design. Use of this
structure dynamically removes both the offset and flicker noise at the same time.
ꢀ
Digital Control Logic
ꢁ
ꢁ
ꢁ
Hall sensor part – generates magnetic pole signals from the Hall-effect sensor.
Driver part – generates switching signals to the open drain MOS driver.
Timer part – generates an interval of time when rotor locked event is occurred.
Rev1.2 Jul. 06, 2009
P.2
FEELING
FD2157H
Absolute Maximum Ratings
Values
Typ.
Parameter
Symbol Conditions
Unit
min.
max.
Operating Temperature
Storage Temperature
Output Clamp Voltage
DC Supply Voltage
Supply Current
TOP
TST
-
-
-
-
-
-40
85
℃
℃
-55
150
VC
55
V
VDD
32(1)
5
V
IDD
mA
mA
mA
mA
℃
Continuous Current
Hold Current
IO(CONT)
IO(HOLD)
IO(PEAK)
TJ
350
800
1000
170
1200
Peak Current
<100µs
Junction temperature
Power Dissipation
Thermal Resistance
Thermal Resistance
Magnetic Flux Density
IR-Reflow Lead Temperature
PD
SIP-4L
SIP-4L
SIP-4L
mW
oC/W
oC/W
Gauss
℃
θ
90
JC
θ
104
JA
B
Unlimited
260
TP
10sec
Note 1：VBEMF must be lower than the output clamp voltage VC.
Power Dissipation Curve
Pd (m W )
1200
960
740
530
290
o
C
85
96
0
150
0
25
50
75
100
125
o
Tem p. (
)
C
255 ± 5 oC
10 ± 1 sec
150 ± 10 oC
90 ± 30 sec
2~5 oC /sec
2~5 oC /sec
SECOND
IR-ReFlow Soldering Condition
Rev1.2 Jul. 06, 2009
P.3
FEELING
Recommended Operating Conditions
FD2157H
Values
typ.
Parameter
Symbol
Conditions
Unit
min.
max.
Supply Voltage
Operating Temperature Range
VDD
Ta
-
-
4.5
30(1)
V
-40
85
℃
Note 1：VBEMF must be lower than the output clamp voltage VC.
Electrical Characteristics Ta=25℃ (unless otherwise specified)
Values
typ.
3
Parameter
Symbol
Conditions
Unit
min.
max.
Average Supply Current(no load)
IDD
VDD = 24V
VDD = 4.5V
VDD = 24V
mA
8.0
2.0
On resistance (RNMOS
)
RDS(ON)
Ohm
Thermal Shutdown Threshold
Locked Rotor Period
TSHUT
TON
150
℃
s
0.4
4.1
Locked Rotor Period
TOFF
s
Magnetic Characteristics
Values
typ.
Parameter
Symbol
Conditions
Unit
min.
5
max.
50
Operate Points
Release Points
Hysteresis
BOP
BRP
25
G
G
G
-5
-25
50
-50
BHYS
10
100
Driver output vs. Magnetic Pole
Parameter
Test Conditions
NO
SO
North pole
South pole
B < Brp
B > Bop
High
Low
Low
High
Note: The magnetic pole is applied facing the branded side of the package
Hysteresis Characteristics
V
V
B
B
Brp
Bop
Brp
Bop
NO
SO
Rev1.2 Jul. 06, 2009
P.4
FEELING
FD2157H
Performance Graphs
RDSON vs. VDD
RDSON vs. TA
12
10
8
12
10
8
Ta = -40
Ta = 25
Ta = 85
Vdd=4.5V
Vdd= 12V
Vdd=24V
Vdd=30V
6
6
4
4
2
2
0
0
0
2
4
6
8
10 12 14 16 18 20 22 24 26 28 30
-40 -30 -20 -10
0
10 20 30 40 50 60 70 80 90
A (oC)
VDD(volts)
T
Figure.4
Figure.5
Magnetic parameters vs. TA
Magnetic parameters vs. VDD
30
40
Bop, Vdd=4.5V
30
20
20
10
Brp, Vdd=4.5V
Bhyst, Vdd=4.5V
Bop, Vdd=30V
Brp, Vdd=30V
Bhyst, dd=30V
10
Bop, Ta=25
Brp, Ta=25
Bhyst, Ta=25
0
0
-10
-20
-30
-10
-20
-40 -30 -20 -10
0
10 20 30 40 50 60 70 80 90
0
2
4
6
8
10 12 14 16 18 20 22 24 26 28 30
TA (oC)
VDD(volts)
Figure.6
Figure.7
IDD vs TA
IDD vs VDD
3.5
3.5
3
3
2.5
2
2.5
2
Vdd=4.5V
Ta = -40
Ta = 25
Ta = 85
Vdd= 12V
Vdd=24V
Vdd=30V
1.5
1
1.5
1
0.5
0
0.5
0
-40 -30 -20 -10
0
10 20 30 40 50 60 70 80 90
0
2
4
6
8
10 12 14 16 18 20 22 24 26 28 30
TA (oC)
VDD (volts)
Figure.8
Figure.9
Rev1.2 Jul. 06, 2009
P.5
FEELING
FD2157H
Application Circuit Reference
Note 1
CN1
D1
VCC
FGO
1
2
3
Connector
R1
C1
U1
FD2157H
1.1mm
L2
L1
MOTOR
1.90mm
Note 2
R2
Q1
2N2222
NOTE
1. D1 is a reversed protection diode
R3
2. Q1, R2 and R3 are FG output signal circuit
Figure.10
Rev1.2 Jul. 06, 2009
P.6
FEELING
FD2157H
FD2157H Output Waveforms Description
VDD
Re-Start Time
TON
Shutdown Time
TOFF
NO
SO
Iin
Rotor Stop
Normal Operation Time
Figure.11
Rev1.2 Jul. 06, 2009
P.7
FEELING
FD2157H
FD2157H Output Waveforms Measurements
FD2157H
+4.5V
Normal Operation
CH1: NO Output
CH2: SO Output
CH3: FGO Output
CH4: Input Current
Rotation Speed (FGO Output)
( ~ 791 rpm)
Average Input Current
( ~ 32.5mA)
Duty Cycle Ratio
( ~ 1.029)
Figure.12
FD2157H
+24.0V
Normal Operation
CH1: NO Output
CH2: SO Output
CH3: FGO Output
CH4: Input Current
Rotation Speed (FGO Output)
( ~ 3,129rpm)
Average Input Current
( ~ 190mA)
Duty Cycle Ratio
( ~ 1.094)
Figure.13
Rev1.2 Jul. 06, 2009
P.8
FEELING
FD2157H
FD2157H
+24.0V
Soft-Switching
CH1: NO Output
CH2: SO Output
CH4: Input Current
Peak Current
( ~ 316mA)
Soft-Switching Time
( ~ 152µs)
Figure.14
FD2157H
+24.0V
Rotor Locked
Re-Start Operation
CH1: NO Output
CH2: SO Output
CH3: FGO Output
CH4: Input Current
Off Time
( ~ 4.02s)
On Time
( ~ 0.4s)
Hold Current
( ~ 360mA)
Figure.15
Rev1.2 Jul. 06, 2009
P.9
FEELING
FD2157H
Package Dimension (Unit: mm)
SIP-4L(Halogen Free)
5.23±0.12
2
-
3
d
e
g
.
2
-
5
d
e
g
.
1.55±0.25
0.73±0.03
4.2±0.1
1.10mm
1.90mm
Sensor location
0.457±0.025
0.38±0.05
0.39±0.05
1.27±0.025
Rev1.2 Jul. 06, 2009
P.10
FEELING
FD2157H
Packing Specification
BAG & BOX DIMANSION
160 mm
100 mm
FTC Logo
BAG LABEL
BOX
LABEL
630 mm
BAG
190 mm
INSIDE BOX
400mm
650mm
CARTON
LABEL
FTC Logo
CARTON
Packing Quantity Specifications
1,000 EA / 1 BAG
20 BAGS / 1 INSIDE BOX
4 INSIDE BOXES / 1 CARTON
Order Information
Part Number
Operating Temperature Package
-40 OC to +85 OC
SIP-4L
Description
±50G (B)
MOQ
1,000 EA / BAG
MSL
FD2157H-G1
3
Rev1.2 Jul. 06, 2009
P.11
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