AH5795-WU-7 Diodes Inc., AH5795-WU-7 Datasheet
AH5795-WU-7
Specifications of AH5795-WU-7
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AH5795-WU-7 Summary of contents
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... Description The AH5795 is a single chip solution for driving single-coil brushless direct current (BLDC) fans and motors. The integrated full-bridge driver output stage uses soft switching to minimize audible switching noise and electromagnetic interference (EMI) providing a low noise solution. Motor speed can be controlled by either changing the duty ratio of the PWM signal at the PWM pin or by varying the supply voltage at Vdd pin ...
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... Frequency Generator (Note 2) Notes: 2. The FG output is the same as the magnetic change frequency. AH5795 Document number: DS35277 Rev SINGLE PHASE HALL EFFECT LATCH SMART Dz Vdd AH5795 PWM Vss Description www.diodes.com AH5795 FAN MOTOR CONTROLLER 10Kohm August 2011 © Diodes Incorporated ...
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... Hall AMP Sensor Vss Notes: 3. The AH5795 has an open-drain tachometer FG output that follows the magnetic change frequency. Typically a pull-up resistor of 10KΩ is recommended from FG pin to the supply voltage. AH5795 Document number: DS35277 Rev SINGLE PHASE HALL EFFECT LATCH SMART Power ...
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... OUT I = 500mA OUT I = 300mA OUT I = 500mA OUT 17Ω load on out1/out2 I = 5mA OFF PWM=Vdd PWM=GND - Motor rotating www.diodes.com AH5795 FAN MOTOR CONTROLLER Values Unit 7 V 1000mA mA 650 mW 780 (Note 5) o -65 ~ 150 Min Max Unit 1.8 6 -40 105 C Min Typ. ...
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... Document number: DS35277 Rev SINGLE PHASE HALL EFFECT LATCH SMART = 25°C, Vdd = 1.8V~6V, Note 6) Min 10 -50 - OFF OFF Magnetic Flux Density in Gauss Marking side www.diodes.com AH5795 FAN MOTOR CONTROLLER (1mT = 10 G) Typ. Max Unit 25 50 -25 -10 Gauss Brp ...
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... Document number: DS35277 Rev SINGLE PHASE HALL EFFECT LATCH SMART Ton Toff Mechanical lock motor locked detected PWM (Note 10 www.diodes.com AH5795 FAN MOTOR CONTROLLER “Re-start spinning” motor locked cleared August 2011 © Diodes Incorporated ...
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... PWM duty can be down to 20%-25% typical. If voltage at Vdd is lower than the nominal motor voltage, both start-up PWM duty and minimum running PWM duty required will be higher. AH5795 Document number: DS35277 Rev SINGLE PHASE HALL EFFECT LATCH SMART FAN MOTOR CONTROLLER www.diodes.com AH5795 August 2011 © Diodes Incorporated ...
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... Ton time on the next PWM high signal PWM Rotor lock protection (internal signal) Soft Switching AH5795 uses soft switching of the motor coil current during commutation for to minimize audible switching noise and electromagnetic interference (EMI) to provide a low noise solution. Vdd Vout 1 Vout 2 ...
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... Power Dissipation Curve 100 www.diodes.com AH5795 FAN MOTOR CONTROLLER 100 339 313 286 260 135 140 145 150 100 125 150 105 T (° ...
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... EU Directive 2002/95/EC (RoHS). All applicable RoHS exemptions applied. Please visit our website at http://www.diodes.com/products/lead_free.html Marking Information (1) TSOT23-6 (Top View Part Number AH5795-WU-7 (2) DFN2020C-6 Part Number AH5795-FDC-7 AH5795 Document number: DS35277 Rev SINGLE PHASE HALL EFFECT LATCH SMART AH 5795 - XXX - 7 Packing ...
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... SINGLE PHASE HALL EFFECT LATCH SMART (All Dimensions in mm) 0.6±0.1 Hall Sensor locator Pin#1 (Active area depth) Seating plane 6x-0.37 C 1.95/2.075 A 1.55/1.75 Hall Sensor Land Pattern Recommendation 0.25/0.35 0. Bottom View www.diodes.com AH5795 FAN MOTOR CONTROLLER 0.65 1.59 (Unit:mm) Top View August 2011 © Diodes Incorporated ...
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... Taping Orientation For DFN2020C-6 Notes: 14. The taping orientation of the other package type can be found on our website at http://www.diodes.com/datasheets/ap02007.pdf. AH5795 Document number: DS35277 Rev SINGLE PHASE HALL EFFECT LATCH SMART FAN MOTOR CONTROLLER www.diodes.com AH5795 August 2011 © Diodes Incorporated ...
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... Incorporated products in such safety-critical, life support devices or systems. Copyright © 2011, Diodes Incorporated www.diodes.com AH5795 Document number: DS35277 Rev SINGLE PHASE HALL EFFECT LATCH SMART FAN MOTOR CONTROLLER IMPORTANT NOTICE LIFE SUPPORT www.diodes.com AH5795 August 2011 © Diodes Incorporated ...