AM4961
Document overview
- Manufacturer or author: Diodes Incorporated
- PDF pages: 14
Technical content
Features
Built-In Hall Bias Circuit Built-In PWM Speed Control Circuit Built-In Minimal Speed Setup Circuit Rotation Speed Indication (FG) Rotation or Lock State Indication (RD) Built-In Thermal Shutdown Circuit Lock Protection Output Current Limit Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2) Halogen and Antimony Free. “Green” Device (Note 3) Pin Assignments (Top View) SSOP-16 (Top View) HTSSOP-14
Applications
CPU Cooler Fan in PC Brushless DC Motor Driver Notes: 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS), 2011/65/EU (RoHS 2) & 2015/863/EU (RoHS 3) compliant. 2. See https://www.diodes.com/quality/lead-free/ for more information about Diodes Incorporated’s definitions of Halogen - and Antimony-free, "Green" and Lead-free. 3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm tot al Br + Cl) and <1000ppm antimony compounds. OUT2 VCC NC VMIN VPWM COSC FG RD VREF HIN- HB HIN+ CT PGND OUT1 GND PGND OUT2 VCC VMIN VPWM COSC FG RD 7 8 GND CT VREF HIN- HB HIN+ OUT1 PGND
Document number: DS42238 Rev. 1 - 2 2 of 14 www.diodes.com September 2019 © Diodes Incorporated ADVANCED INFORMATION AM4961 Typical Applications Circuit (Note 4) OUT2 OUT1 VCC GND VMIN CT VPWM VREF COSC HIN- FG HB RD HIN+ Hall AM4961 1F or greater 27k 10k R4 39k R6 330k 100k R5 100k PWM VCC R3 7.5k R8 68k 0.33F 100pF 0.47F 1 (1) 2 (3) 3 (4) 4 (5) 5 (6) 6 (7) 7 (8) 8 (9) 9 (10) 10 (11) 11 (12) 12 (13) 13 (14) 14 (15) PGND (16) Note 4: *1. Ground Line Layout PGND is connected to motor supply stage and GND is connected to control stage. All ground lines fr om control stage are connected to GND. *2. Stability of Power Supply C1 is employed to stabilize VCC. Its capacitance is no less than 1μF. *3. Hall Input To avoid noise, the shortest line is recommended to connect with Hall stage which has about 20mV hyst eresis. Thus, the ideal Hall input is 50mV or over. *4. COSC Capacitor When CCP is 100pF, the COSC frequency will be 25kHz. *5. FG Output FG output terminal is open collector output which varies with phase change. *6. RD Output RD output terminal is open collector output. It is low at rotation mode and high when stopped. *7. HB Pin This pin is available to output a 1.25V Hall bias voltage. *8. VMIN Pin If this pin is disused, connect it directly with VPWM, the minimum duty cycle will be 10%.
Document number: DS42238 Rev. 1 - 2 3 of 14 www.diodes.com September 2019 © Diodes Incorporated ADVANCED INFORMATION AM4961 Pin Descriptions Pin Number Pin Name Function HTSSOP-14 SSOP-16 1 1 OUT2 Driver output 2 _ 2 NC No connection 2 3 VCC Power supply 3 4 VMIN Minimum duty setting 4 5 VPWM Adjustable Input 5 6 COSC Oscillator capacitor 6 7 FG Rotation speed indicator 7 8 RD Rotation/lock state indicator 8 9 HIN+ Hall sensor input + 9 10 HB Hall sensor bias regulator 10 11 HIN- Hall sensor input 11 12 VREF Reference voltage regulator 12 13 CT Lock and rotation setting capacitor terminal 13 14 GND Ground for control circuit 14 15 OUT1 Driver output 1 _ 16 PGND Power ground
Document number: DS42238 Rev. 1 - 2 4 of 14 www.diodes.com September 2019 © Diodes Incorporated ADVANCED INFORMATION AM4961 Functional Block Diagram Lock Shutdown and Auto Restart Voltage Reference Hall Bias Thermal Shutdown Hysteresis Amp Control Circuit Oscillation Circuit CT VCC VREF HB HIN+ HIN- VMIN VPWM COSC GND PGND OUT1 OUT2 RD FG 2 (3) 11 (12) 9 (10) 8 (9) 10 (11) 3 (4) 4 (5) 5 (6) 13 (14) (16) 14 (15) 1 (1) 7 (8) 6 (7) 12 (13) Pre-driver A (B) A for 14-pin B for 16-pin
Document number: DS42238 Rev. 1 - 2 5 of 14 www.diodes.com September 2019 © Diodes Incorporated ADVANCED INFORMATION AM4961 Absolute Maximum Ratings (Note 5) Symbol Parameter Value Unit VCC Supply Voltage 18 V IOUT Output Current 1.0 A VOUT Output Voltage 18 V IHB HB Output Current 10 mA VPWM VPWM Input Voltage 6 V VRD RD Output Voltage 18 V VFG FG Output Voltage 18 V IRD RD Output Current 10 mA IFG FG Output Current 10 mA PD Power Dissipation (Note 6) SSOP-16 0.8 W HTSSOP-14 1.1 W TSTG Storage Temperature Range -55 to +150 oC ESD ESD (Human Body Model) 2000 V ESD ESD (Machine Model) 250 V Notes: 5. Stresses greater than those listed under “Absolute Maximum Ratings” can cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under “ Recommended Operating Conditions” is not implied. Exposure to “Absolute Maximum Ratings” for extended periods can affect device reliability 6. TA = +25° C, no external heatsink. Recommended Operating Conditions Symbol Parameter Min Typ Max Unit VCC Supply Voltage 3.5 12 16 V VIN+ Hall Input Voltage + (Note 7) 0.2 _ 3 V VIN- Hall Input Voltage - (Note 7) 0.2 _ 3 V TA Ambient Temperature -30 _ +90 oC Note: 7. Hall input voltage range includes the amplitude of signal.
Document number: DS42238 Rev. 1 - 2 6 of 14 www.diodes.com September 2019 © Diodes Incorporated ADVANCED INFORMATION AM4961 Electrical Characteristics (VCC=12V, TA=+25℃, unless otherwise specified.) Symbol Parameter Conditions Min Typ Max Unit IQ1 Quiescent Current Lock Off 10.2 15 18.76 mA IQ2 Lock On 5.38 8 10.55 VREF VREF Voltage IREF=5mA 5.8 6 6.2 V VSATH Output Saturation Voltage at High Side ISOURCE=200mA _ 1.0 1.17 V VSATL Output Saturation Voltage at Low Side ISINK=200mA _ 0.2 0.3 V fOSC COSC Frequency COSC=100pF 18 25 32 kHz VOSCH COSC High Level Voltage _ 3.45 3.6 3.75 V VOSCL COSC Low Level Voltage _ 1.83 1.95 2.07 V VHYS Hall Input Hysteresis _ _ ±10 ±20 mV VHB Hall Bias Voltage IHB=5mA 1.1 1.25 1.4 V VCTH CT High Level Voltage _ 3.55 3.7 3.88 V VCTL CT Low Level Voltage _ 1.55 1.7 1.85 V ICHG CT Charge Current _ 1.5 2 2.85 μA IDHG CT Discharge Current _ 0.14 0.2 0.285 μA RCD CT Charge and Discharge Ratio ICHG/IDHG 8.5 10 14.5 _ VFGL FG Output Low Level Voltage IFG=5mA _ 0.2 0.3 V ILFG FG Leakage Current VFG=12V _ _ 30 μA VRDL RD Output Low Level Voltage IRD=5mA _ 0.2 0.3 V ILRD RD Leakage Current VRD=12V _ _ 30 μA
Document number: DS42238 Rev. 1 - 2 7 of 14 www.diodes.com September 2019 © Diodes Incorporated ADVANCED INFORMATION AM4961 Performance Characteristics Quiescent Current vs. Ambient Temperature Quiescent Current vs. Supply Temperature Output Saturation Voltage (High) vs. Output Current Output Saturation Voltage (Low) vs.Output Current Power Dissipation vs. Ambient Temperature Power Dissipation vs. Ambient Temperature -50 0 50 100 150 200 VCC=12V Rotation Mode IQ1 (mA) TA ( O 44 6 88 10 1212 14 1616 18 IQ1 (mA) VCC (V) TA=25 O C Rotation Mode 0 200 400 600 800 1000 0.0 0.5 1.0 1.5 2.0 VSATH (V) IOUT (mA) VCC=12V 0 200 400 600 800 1000 0.0 0.5 1.0 1.5 2.0 VSATL (V) IOUT (mA) VCC=12V -20 0 20 40 60 80 100 120 0.0 0.2 0.4 0.6 0.8 1.0 1.2 PD (W) TA ( O Package: SSOP-16 No External Heatsink -20 0 20 40 60 80 100 0.0 0.2 0.4 0.6 0.8 1.0 1.2 PD (W) TA ( O Package: HTSSOP-14 No External Heatsink
Document number: DS42238 Rev. 1 - 2 8 of 14 www.diodes.com September 2019 © Diodes Incorporated ADVANCED INFORMATION AM4961
Ordering Information
PackingPackageProduct Name TR : Tape & ReelGS : SSOP-16 G1 : RoHS Compliant and GreenGH : HTSSOP-14 RoHS/Green Package Temperature Range Part Number Marking ID 13” Tape and Reel Quantity SSOP-16 -30 to +90℃ AM4961GSTR-G1 AM4961GS-G1 3000/Tape & Reel HTSSOP-14 -30 to +90℃ AM4961GHTR-G1 AM4961GH-G1 3000/Tape & Reel
Document number: DS42238 Rev. 1 - 2 9 of 14 www.diodes.com September 2019 © Diodes Incorporated ADVANCED INFORMATION AM4961 Operating Diagram (Note 8) Lowest speed setting voltage VPWM adjustable Voltage fOSC=25kHz (COSC=100pF) VMIN Voltage COSC Output Low Speed PWM Variable High Speed VCC FG Output Vosc Vosc Note 8: 1. Low Speed Setting Mode When VPWM voltage is higher than VMIN pin voltage, motor speed is settable by VMIN pin voltage. The minimum drive duty cycle is settable by comparing COSC oscillating voltage and VMIN pin voltage. VPWM voltage is decided by variation of PWM duty. 2. Variable Speed Setting Mode When VPWM voltage is lower than VMIN pin voltage, PWM control system works by comparing VPWM voltage and COSC voltage. If VPW M voltage is higher, the ON duty cycle of the upper side transistors will be minimized and motor speed becomes lower. Vice versa. 3. Full Speed Rotation Mode M At a certain PWN duty, when VPWM voltage is lower than the low side of COSC output voltage, the motor will run at full spee d.
Document number: DS42238 Rev. 1 - 2 10 of 14 www.diodes.com September 2019 © Diodes Incorporated ADVANCED INFORMATION AM4961 Package Outline Dimensions (All dimensions in mm(inch).) Please see http://www.diodes.com/package-outlines.html for the latest version. (1) Package Type: SSOP-16 3.800(0.150) 4.000(0.157) 0.200(0.008) 0.300(0.012) 0.800(0.031) 0.635(0.025) BSC 0.100(0.004) 0.250(0.010) 1.350(0.053) 1.750(0.069) 0.400(0.016) 1.270(0.050) 4.700(0.185) 5.100(0.201) 5.800(0.228) 6.200(0.244) 0.650(0.026) 0.750(0.030) 0.200(0.008) 0.250(0.010) 1.350(0.053) 1.550(0.061) 0.020(0.001) 0.050(0.002) R0.150(0.006) R0.150(0.006) 0.250(0.010)SEE DETAIL A 0.150(0.006) 0.250(0.010) DETAIL A Note: Eject hole, oriented hole and mold mark is optional.
Document number: DS42238 Rev. 1 - 2 11 of 14 www.diodes.com September 2019 © Diodes Incorporated ADVANCED INFORMATION AM4961 Package Outline Dimensions (continued. All dimensions in mm(inch).) Please see http://www.diodes.com/package-outlines.html for the latest version. (2) Package Type: HTSSOP-14 6.350(0.250) 6.550(0.258) 1.470(0.058) 1.570(0.062) 1.450(0.057) 1.550(0.061) 0.750(0.030) 0.850(0.033) 0.650(0.026) BSC 1.300(0.051) BSC 6.200(0.244) 6.600(0.260) 0.340(0.013) 0.540(0.021) 1.200(0.047) MAX 0.050(0.002) 0.200(0.008) 0.900(0.035) 1.050(0.041) 4.300(0.169) 4.500(0.177) SEE DETAIL A 0.250(0.010) BSC R0.090(0.004) MIN R0.090(0.004) MIN 0.200(0.008) MIN 0.450(0.018) 0.750(0.030) 1.000(0.039) REF DETAIL A Note: Eject hole, oriented hole and mold mark is optional. 0.100(0.004) 0.150(0.006) 0.100(0.004) 0.190(0.007) BASE METAL
Document number: DS42238 Rev. 1 - 2 12 of 14 www.diodes.com September 2019 © Diodes Incorporated ADVANCED INFORMATION AM4961 Suggested Pad Layout Please see http://www.diodes.com/package-outlines.html for the latest version. (1) Package Type: SSOP-16 ZG XE Y Dimensions Z (mm)/(inch) G (mm)/(inch) X (mm)/(inch) Y (mm)/(inch) E (mm)/(inch)
Document number: DS42238 Rev. 1 - 2 13 of 14 www.diodes.com September 2019 © Diodes Incorporated ADVANCED INFORMATION AM4961 Suggested Pad Layout (continued) Please see http://www.diodes.com/package-outlines.html for the latest version. (2) Package Type: HTSSOP-14 E1 E2 G Z X Y Dimensions Z (mm)/(inch) G (mm)/(inch) X (mm)/(inch) (mm)/(inch) Dimensions Y (mm)/(inch) (mm)/(inch) (mm)/(inch) _
Document number: DS42238 Rev. 1 - 2 14 of 14 www.diodes.com September 2019 © Diodes Incorporated ADVANCED INFORMATION AM4961 IMPORTANT NOTICE DIODES INCORPORATED MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARDS TO THIS DOCUMENT, INCLUDING, BUT NOT LI MITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE (AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION). Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvem ents, corrections or other changes without further notice to this document and any product described herein. Diodes Incorporated does not assume any liability a rising out of the application or use of this document or any product described herein; neither d oes Diodes Incorporated convey any license under its patent or trademark rights, nor the rights of others. Any Customer or user of this document or products described herein in such applications shall assume all risks of such use and will agree to hold Dio des Incorporated and all the companies whose products are represented on Diodes Incorporated website, harmless against all damages. Diodes Incorporated does not warrant or accept any liability whatsoever in respect of any products purchased through unauthorized sales channel. Should Customers purchase or use Diodes Incorporated products for any unintended or unauthorized application, Customers shall indemnify and hold Diodes Incorporated and its representatives harmless against all claims, damages, expen ses, and attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized application. Products described herein may be covered by one or more United States, internation al or foreign patents pending. Product names and markings noted herein may also be covered by one or more United States, international or foreign trademarks. This document is written in English but may be translated into mul tiple languages for reference. Only the English version of this document is the final and determinative format released by Diodes Incorporated. LIFE SUPPORT Diodes Incorporated products are specifically not authorized for use as critical components in life support devices or system s without the express written approval of the Chief Executive Officer of Diodes Incorporated. As used herein: A. Life support devices or systems are devices or systems which: 1. are intended to implant into the body, or 2. support or sustain life and whose failure to perform when properly used in accordance with instructions for use provided in the labeling can be reasonably expected to result in significant injury to the user. B. A critical component is any component in a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or to affect its safety or effectiveness. Customers represent that they have all necessary expertise in the safety and regulatory ramifications of their life support devices or systems, and acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements concerning their products and any use of Diodes Incorporated products in such safety -critical, life support devices or systems, notwithstanding any devices - or systems -related information or support that may be pr ovided by Diodes Incorporated. Further, Customers must fully indemnify Diodes Incorporated and its representatives against any damages arising out of the use of Diodes Incorporated products in such safety-critical, life support devices or systems. Copyright © 2019, Diodes Incorporated www.diodes.com