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ISSUED DATE :2005/11/24 REVISED DATE :
G276P
Description
Complementary Output Hall Effect Latched Sink Driver IC
The G276P is an integrated Hall sensors with output drivers designed for electronic commutation of brushless 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 complementary open-collector drivers for sinking large current loads. An internal bandgap regulator is used to provide temperature compensated supply voltage for internal circuits and allows a wide operating supply range. If a magnetic flux density larger than threshold Bop, DO is turned on (low) and DOB is turned off (high). The output state is held until a magnetic flux density reversal falls below Brp causing DO to be turned off and DOB turned on. G276P is rated for operation over temperature range from -20 are available in low cost die forms or rugged 4 pin SIP packages. to 85 and voltage range from 3.5V to 20V. The devices
Features
*On-chip Hall sensor IC with two different sensitivity and hysteresis settings for G276P *Internal bandgap regulator allows temperature compensated operations and a wide operating voltage range. *High output sinking capability up to 300mA for driving large load. *Lower current change rate reduces the peak output voltages during switching. *Build in protection diode for chip reverse power connecting. *Package: SIP-4L.
Application
1)Brushless DC Motor 2)Brushless DC Fan 3)Revolution Counting 4)Speed Measurement
Package Dimensions
REF. A A1 b b1
Millimeter Min. 1.295 0.610 0.330 0.406 0.432 0.508 Max. 1.803
REF. D E L e
Millimeter Min. 5.105 3.531 14.00 Max. 5.359 3.785 16.00
1.27REF
G276P
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ISSUED DATE :2005/11/24 REVISED DATE :
Functional Block Diagrams
Pin Descriptions Name Vcc DO DOB Vss P/I/O P O O P Pin# 1 2 3 4 Description Positive Power supply Output Pin Output Pin Ground
Absolute Maximum Ratings at Ta = 25
Parameter Supply Voltage Reverse Vcc Polarity Voltage Magnetic flux density Output OFF Voltage Continuous Output ON Current Hold Operating Temperature Range Storage Temperature Range Package Power Dissipation Maximum Junction Temp.
extended periods may affect device reliability.
Symbol Vcc VRCC B Vce IC Ta Ts PD Tj
Value 20V -35V Unlimited 35 300 400 -20 ~ 85 -65 ~ 150 550 175
Unit V V V
mA
mW
*Exceeding the absolute maximum ratings may cause permanent damage. Exposure to absolute maximum rated conditions for
Electrical Characteristics (Ta=+25 , Vcc=4.0V to 20V)
Parameter Low Supply Voltage Supply Voltage
Symbol Test Conditions Vce Vcc=3.5V, IL=100mA Vcc ICex ICC Tr Tf t Vce=14V, Vcc=14V Vcc=20V, Output Open Vcc=14V, RL=820 , CL=20pf Vcc=14V, RL=820 , CL=20pf Vcc=14V, RL=820 , CL=20pf
Min 3.5 -
Typ 0.4 0.6 <1 18 3.0 0.3 3.0
Max 20 0.9 10 25 10 1.5 10
Unit V V V uA mA us us us
Output Saturation Voltage Output Leakage Current Supply Current Output Rise Time Output Falling Time Switch Time Differential
Vce(sat) Vcc=14V, IL=300mA
G276P
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ISSUED DATE :2005/11/24 REVISED DATE :
Power dissipation vs. Environment Temperature
Ta( ) 25 50 60 70 80 85 90 95 100 105 110 115 120 Pd(mW) 550 450 400 350 300 280 260 240 220 200 180 160 140
P d (m W ) 600 500 400 300 200 100 0 25 50 75 100 125 150 T a (ÂșC ) P o w e r D is s ip a tio n C u rve
Magnetic Characteristics
Characteristic BIN A Operate Point BIN B BIN C BIN A Release Point BIN B BIN C BIN A Hysteresis BIN B BIN C Symbol Bop Bop Bop Brp Brp Brp Bhys Bhys Bhys Ta=+25 Min Max 5 50 70 100 -50 -5 -70 -100 40 80 40 80 40 80 Ta=0 Min 5 -50 -70 -100 40 40 40 to 70 Max 50 70 100 -5 80 80 80 Unit Gauss Gauss Gauss Gauss Gauss Gauss Gauss Gauss Gauss
Test Circuit
14V
Vout1(DO)
RL1
Vout2(DOB)
RL2 RL1=RL2=820 Ohm CL1=CL2=20 pF CL1 CL2
G276P
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ISSUED DATE :2005/11/24 REVISED DATE :
Hysteresis Characteristics
DOB
Output Voltage in Volts RP 12 10 8 6 4 ON -200 -100 2 0 OP 100 200 OFF
Bin A
DO
Output Voltage in Volts OFF 12 10 8 6 4 RP -200 -100 2 0 ON 100 200 OP
Magnetic Flux Density in Gauss
Magnetic Flux Density in Gauss
Bin B DOB
Output Voltage in Volts RP OFF Output Voltage in Volts 12 10 8 6 4 ON -200 -100 0 2 100 OP 200 OFF
DO
12 10 8 6 4 RP -200 -100 0 2 100 ON 200 OP
Magnetic Flux Density in Gauss Bin C
Magnetic Flux Density in Gauss
DOB
Output Voltage in Volts RP 12 10 8 6 4 ON -200 -100 0 2 100 OP 200 OFF
DO
Output Voltage in Volts OFF 12 10 8 6 4 RP -200 -100 0 2 100 ON 200 OP
Magnetic Flux Density in Gauss
Magnetic Flux Density in Gauss
G276P
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ISSUED DATE :2005/11/24 REVISED DATE :
Application Circuit Double Coil
1) Output on current, Ic > 250mA 2) With FG output
Remark: C1, C2: Capacitor 2.2 F~4.7 F (optional)
Remark: C1: Capacitor 0.1 F~1 F R1: Resister 1K
Package Information
Active Area Depth Package Sensor Location
1.75mm
Top View Marking Site 0.7mm
1.35mm Top View
1
.