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FEELING TECHNOLOGY
Features
High sensitivity Hall-effect sensor Low power consumption Output clamping totem-pole drivers Lock-shutdown protection & auto-restart function Edge detector and propagation delay timer Thermal shutdown protection(TSD) Available in SIP-4L package For 12V to 48V DC motor / FAN systems
FD170H
Complementary output driver with Hall sensor
Halogen Free
General Description
FD170H is a complementary dual pre-drivers output with embedded Hall-effect sensor IC. It integrates a output clamping totem-pole drivers for NPN or NMOS drivers, a high sensitivity hall-effect sensor, an event timer for rotor locked in SIP-4L package, which make this solution operation under a high power conditions of 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
VDD 1
Bias Generator Chopper Amp. Digital Control Logic 2 NO
LSD & Re-running Timer
3 SO
GND 4
Delay Timer Edge Detector
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.
Rev1.0 May. 08, 2009 P.1
FEELING TECHNOLOGY
Pin Connection Marking Distinguish
FD170H
170
YMV-XX
1 2 3 4
170
YMV- XX
Lot Number Mass Production Version Half month (ex :A,B ~ X) Year (ex:2008 8)
VDD
Figure.2
VSS
NO
SO
Figure.3
Pin Descriptions
Name VDD NO SO VSS I/O P O O G FD170H 1 2 3 4 Description Positive Power Supply Driver Output 1 Driver Output 2 Ground
Legend: I=input, O=output, I/O=input/output, P=power supply, G=ground
Functional Descriptions
Refer to the block diagram (Figure.1), FD170H 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. Timers The timers provide the lock shutdown and re-start time and propagation delay time counting. Output drivers The output drivers include totem-pole MOS transistors and output voltage clamping functions. 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 output drivers. Detector part – detects the output transient status.
Rev1.0 May. 08, 2009 P.2
FEELING TECHNOLOGY
Absolute Maximum Ratings
Parameter Operating Temperature Storage Temperature DC Supply Voltage Output Voltage (NO, SO) Supply Current Continuous Current Hold Current Peak Current Junction Temperature Power Dissipation Thermal Resistance Thermal Resistance Magnetic Flux Density IR-Reflow Lead Temperature Symbol TOP TST VDD VOUT IDD IO(CONT) IO(HOLD) IO(PEAK) TJ θJC θJA B TP 10sec PD SIP-4L SIP-4L SIP-4L 100 250 Unlimited 260 <100µs Conditions min. -40 -55 Values typ. max. 105 150 29 VDD+0.3V 2 ±20 ±50 ±150 170 500
FD170H
Unit ℃ ℃ V V mA mA mA mA ℃ mW
℃/W ℃/W Gauss ℃
P o w er D is sip atio n C u rv e
P d (m W )
500 408 308 220 120 48 0 0 25 50 75 100 125 15 0
T em p . ( C )
o
1 05
o
C
255 ± 5 oC 10 ± 1 sec
ROOM TEMP
150 ± 10 oC 90 ± 30 sec 2~5 oC /sec 2~5 oC /sec
SECOND
IR-ReFlow Soldering Condition
Rev1.0 May. 08, 2009 P.3
FEELING TECHNOLOGY
Recommended Operating Conditions
Parameter Supply Voltage Operating Temperature Range Symbol VDD Ta Conditions min. 4.0 -40 Values typ. max. 28 105
FD170H
Unit ℃ V
Electrical Characteristics Ta=25℃ (unless otherwise specified)
Parameter Average Supply Current(no load) On resistance Thermal Shutdown Threshold Locked Rotor Period Locked Rotor Period Propagation Delay Time Symbol IDD RDS(ON) TSHUT TON TOFF TPD Conditions VDD = 24V VDD = 5V VDD = 24V 150 0.4 4.0 10 min. Values typ. 1.0 800 500 max. Unit mA Ω ℃ s s µs
Magnetic Characteristics
Parameter Operate Points Release Points Hysteresis Symbol BOP BRP BHYS Conditions min. 5 -5 Values typ. 25 -25 50 max. 50 -50 Unit G G G
Driver output vs. Magnetic Pole
Parameter North pole South pole Test Conditions B < Brp B > Bop NO High Low SO Low High
Note: The magnetic pole is applied facing the branded side of the package Hysteresis Characteristics
V V
B Brp Bop Brp Bop
B
NO
.