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FAH4820 Dataheets PDF



Part Number FAH4820
Manufacturers Fairchild Semiconductor
Logo Fairchild Semiconductor
Description Direct Driver
Datasheet FAH4820 DatasheetFAH4820 Datasheet (PDF)

FAH4820 — Driver for DC Motors (ERMs) June 2013 FAH4820 Direct Driver for DC Motors (ERMs) Features           Single-Pin Direct-Drive of ERM for Simple Vibration Control External Motor Enable/Disable, Vibration Control Register-Based I2C Control (Optional; Device Operates in Default Condition) Over-Driving Motor Control, Drive ERM Voltage to VDD Rail Programmable Motor Drive Voltage Low Standby Current: <1 µA Fast Wake-up Time Nearly Rail-to-Rail Output Swing Protections: Under-Volta.

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FAH4820 — Driver for DC Motors (ERMs) June 2013 FAH4820 Direct Driver for DC Motors (ERMs) Features           Single-Pin Direct-Drive of ERM for Simple Vibration Control External Motor Enable/Disable, Vibration Control Register-Based I2C Control (Optional; Device Operates in Default Condition) Over-Driving Motor Control, Drive ERM Voltage to VDD Rail Programmable Motor Drive Voltage Low Standby Current: <1 µA Fast Wake-up Time Nearly Rail-to-Rail Output Swing Protections: Under-Voltage, Over-Current, Over-Temperature Package: 10-Lead MLP Description The FAH4820 is a high-performance enhanced ERM driver for mobile phone and other hand-held devices. This device does not require a PWM signal to generate vibration of the ERM; it is controlled by the drive level on the HEN input. The ERM spins for the length of time that the HEN pin is held HIGH, then stop when the HEN pin is pulled LOW. The FAH4820’s register maps are accessible via I2C serial communication, which is useful for higher or lower drive voltage across the ERM or if disabling the device is desired. Related Resources  AN-5067 — PCB Land Pattern Design and SurfaceMount Guidelines for MLP Packages Applications    Mobile Phones Handheld Devices Keypad Interfaces Ordering Information Part Number FAH4820MPX Operating Temperature Range -40°C to +85°C Package 10-Lead, Dual, JEDEC MO-229, 3 mm Square, Molded Leadless Package (MLP) Packing Method 3000 Units on Tape & Reel © 2013 Fairchild Semiconductor Corporation FAH4820 • 1.0.0 www.fairchildsemi.com FAH4820 — Driver for DC Motors (ERMs) Block Diagram VDD SCL SDA Serial I2C Interface Bandgap Reference UVLO OCP OTP Programmable LDO HEN MDP Control Logic and Register Differential Driver GND MDN GAIN Figure 1. Block Diagram Pin Configuration Figure 2. Pin Assignments Pin Definitions Name VDD GND MDP MDN GAIN NC HEN SDA SCL Pin # 1 2, 7 3 4 5 6 8 9 10 Type Power Power Output Output Input NA Input Input Input Power Ground Positive motor driver output Negative motor driver output Gain control for motor driving No connection Description Motor enable/disable (HIGH: enable, LOW: disable) I2C data input I2C clock input © 2013 Fairchild Semiconductor Corporation FAH4820 • 1.0.0 www.fairchildsemi.com 2 FAH4820 — Driver for DC Motors (ERMs) Absolute Maximum Ratings Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be operable above the recommended operating conditions and stressing the parts to these levels is not recommended. In addition, extended exposure to stresses above the recommended operating conditions may affect device reliability. The absolute maximum ratings are stress ratings only. Symbol VDD VIO DC Supply Voltage Parameter Analog and Digital I/O (All Input and Output Pins) Min. -0.3 -0.3 Max. 6.0 VCC+0.3 Unit V V Reliability Information Symbol TJ TSTG JA Junction Temperature Storage Temperature Range Thermal Resistance, JEDEC Standard, Multi-Layer Test Boards, Still Air -65 200 Parameter Min. Typ. Max. +150 +150 Unit °C °C °C/W Electrostatic Discharge Information Symbol ESD Parameter Human Body Model, JESD22-A114 Charged Device Model, JESD22-C101 Max. ±4 ±1 Unit kV Recommended Operating Conditions The Recommended Operating Conditions table defines the conditions for actual device operation. Recommended operating conditions are specified to ensure optimal performance to the datasheet specifications. Fairchild does not recommend exceeding them or designing to Absolute Maximum Ratings. Symbol TA VDD Supply Voltage Range Parameter Operating Temperature Range Min. -40 2.7 Typ. 3.3 Max. +85 5.5 Unit °C V © 2013 Fairchild Semiconductor Corporation FAH4820 • 1.0.0 www.fairchildsemi.com 3 FAH4820 — Driver for DC Motors (ERMs) DC Electrical Characteristics TA = 25°C, VDD = 3.3 V, and VLDO = 3.0 V unless otherwise noted. Symbol IIHHEN IILHEN IIHSCL IIHSDA IILSCL IILSDA VIH VIL VOL VOH IOUT tWU tSD RIN CIN IDD1 IDD2 IDD3 IPD VOUT VREG Parameter Input Current Input Current Input Current Input Current Input Current Input Current Input Logic HIGH Input Logic LOW Output Voltage Output Voltage Short-Circuit Protection Wake-up Time Shutdown Time Input Resistance Input Capacitance Supply Current Supply Current Supply Current Conditions HEN = 3.3 V HEN = 0.0 V SCL = 3.3 V SDA = 3.3 V SCL = 0.0 V SDA = 0.0 V Min. Typ. 1 1 0 0 0 0 Max. 2 2 1 1 1 1 0.3 X VDD Unit µA µA µA µA µA µA V V mV V 0.7 X VDD VDD = 3.3 V, RL = 10 Ω VDD = 3.3 V, RL = 10 Ω VDD = 3.3 V, MDP to MDN Short to Each Other & Short to GND HEN HIGH to LOW Gain Input – Default Register Setting Gain Input RL = No Load, HEN=LOW RL = No Load, HEN=HIGH RL = 10 Ω, HEN=HIGH VLDO-0.3 500 50 1 10 10 10 2.5 275 20 2.4 -10 3.0 50 3.6 10 20 5.0 150 150 100 200 mA µs µs kΩ pF µA mA mA nA V % Power-Down Supply VDD = 2.7 V, VLDO = 2.4 V, Current Reg 0x20 Bit 7=0 Output Voltage Range Output Voltage Accuracy HEN Output TWU TSD Figure 3. Ena.


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