FPF1015 FAIRCHILD | Alldatasheet
Document overview
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Technical content
Features
0.8 to 1.8V Input Voltage Range Typical RDS(ON) = 34mΩ @ VON - VIN = 2.0V Output Discharge Function Internal Pull down at ON Pin Accurate Slew Rate Controlled Turn-on time Low < 1µA Quiescent Current ESD Protected, above 8000V HBM, 2000V CDM RoHS Compliant Free from Halogenated Compounds and Antimony Oxides
Applications
PDAs Cell Phones GPS Devices MP3 Players Digital Cameras Notebook Computers General Description The FPF1015/6/7/8 series is an IntelliMAX advanced slew rate loadswitch offering a very low operating voltage. These devices consist of a 34m Ω N-channel MOSFET that supports an input voltage up to 2.0V. These slew rate devices control the switch turn-on and prevent excessive in-rush current from the supply rails. The input voltage range operates from 0.8V to 1.8V to fulfill today's lowest Ultraportable Device's supply requirements. Switch control is via a logic input (ON) capable of interfacing directly with low voltage control signals. The FPF1016 and FPF1018 have an On-Chip pull down allowing for quick and controlled output discharge when switch is turned off. The FPF1015/6/7/8 series is available in a space-saving 2X2 MLP-6L package. Typical Application Circuit
Ordering Information
Part Switch Turn-on Time Output Discharge ON Pin Activity Package FPF1015 34m Ω, NMOS 43us NA Active HI MLP 2x2 FPF1016 34m Ω, NMOS 43us 60 Ω Active HI MLP 2x2 FPF1017 34m Ω, NMOS 165us NA Active HI MLP 2x2 FPF1018 34m Ω, NMOS 165us 60 Ω Active HI MLP 2x2 OFF ON ON VIN GND FPF1015/6/7/8 VOUT TO LOAD CIN COUT BOTTOM PIN 1 TOP
2 www.fairchildsemi.comFPF1015/6/7/8 Rev. D FPF1015/6/7/8 IntelliMAXTM 1V Rated Advanced Load Management Products Functional Block Diagram Pin Configuration Pin Description Absolute Maximum Ratings Recommended Operating Range Pin Name Function
1 ON ON/OFF Control Input, 2nd Supply
2, 3 V IN Supply Input: Input to the power switch 4, 5 V OUT Switch Output.
6 GND Ground
VIN, VOUT to GND -0.3 2 V VON to GND -0.3 4.2 V Maximum Continuous Switch Current 1.5 A Power Dissipation @ TA = 25°C (Note 1) 1.2 W Operating Temperature Range -40 85 °C Storage Temperature -65 150 °C Thermal Resistance, Junction to Ambient 86 °C/W Electrostatic Discharge Protection HBM 8000 V CDM 2000 V Parameter Min Max Unit VIN 0.8 1.8 V Ambient Operating Temperature, TA -40 85 °C VIN ON VOUT GND Output Discharge (Optional for FPF1016/18) CONTROL LOGIC ESD protection Turn-on Slew Rate Controlled Driver FPF1015/6/7/8 VOUT VOUT ON MicroFET 2x2 6L BOTTOM VIEW VIN VIN GND Note 1: Package power dissipation on 1square inch pad, 2 oz. copper board
3 www.fairchildsemi.comFPF1015/6/7/8 Rev. D FPF1015/6/7/8 IntelliMAXTM 1V Rated Advanced Load Management Products
Electrical Characteristics
Parameter Symbol Conditions Min Typ Max Unit Basic Operation Operating Voltage V IN 0.8 1.8 V ON input Voltage VON(MIN) VIN = 0.8V 1.8 2.8 4.0 V VON(MAX) VIN = 1.8V(Note2) 2.8 3.8 4.0 V Operating Current I CC VIN = 1V, VON = 3.3V, VOUT = Open 1 µA Quiescent Current I Q VIN = 1V, VON = VOUT = Open 2 µA Off Switch Current I SWOFF VIN = 1.8V, VON = GND, VOUT = GND 2 µA On-Resistance R ON VIN = 1V, VON = 3V, ILOAD = 1A, TA = 25°C 34 45 mΩ VIN = 1V, VON = 2.3V, ILOAD = 1A, TA = 25°C 41 55 Output Pull Down Resistance R PD VIN = 1V, V ON = 0V, T A = 25°C, I LOAD = 1mA, FPF1016, FPF1018 60 120 Ω ON Input Logic Low Voltage V IL VIN = 0.8V, RLOAD = 1KΩ 0.3 V VIN = 1.8V, RLOAD = 1KΩ 0.8 ON Input Leakage V ON = VIN or GND -1 1 µA Dynamic (VIN = 1.0V, VON = 3.0V, TA = 25°C) VOUT Rise Time T R FPF1015, FPF1016, RL = 500Ω, CL = 0.1µF 28 µs FPF1017, FPF1018, RL = 500Ω, CL = 0.1µF 114 FPF1015, FPF1016, RL = 3.3Ω, CL = 10µF 38 FPF1017, FPF1018, RL = 3.3Ω, CL = 10µF 155 Turn ON T ON FPF1015, FPF1016, RL = 500Ω, CL = 0.1µF 43 µs FPF1017, FPF1018, RL = 500Ω, CL = 0.1µF 165 FPF1015, FPF1016, RL = 3.3Ω, CL = 10µF 58 FPF1017, FPF1018, RL = 3.3Ω, CL = 10µF 228 VOUT Fall Time T F FPF1015, FPF1017, RL = 500Ω, CL = 0.1µF 105 µs FPF1016, FPF1018, RPD = 60Ω, RL = 500Ω, CL = 0.1µF 15 FPF1015, FPF1017, RL = 3.3Ω, CL = 10µF 80 FPF1016, FPF1018 RPD = 60Ω, RL = 3.3Ω, CL = 10µF 74 Turn Off T OFF FPF1015, FPF1017, RL = 500Ω, CL = 0.1µF 150 µs FPF1016, FPF1018 RPD = 60Ω, RL = 500Ω, CL = 0.1µF 53 FPF1015, FPF1017, RL = 3.3Ω, CL = 10µF 102 FPF1016, FPF1018 RPD = 60Ω, RL = 3.3Ω, CL = 10µF 96 Note 2: VON(MAX) is limited by the absolute rating.
Figure 19. FPF1016 / 18 Output Pull Down response
8 www.fairchildsemi.comFPF1015/6/7/8 Rev. D FPF1015/6/7/8 IntelliMAXTM 1V Rated Advanced Load Management Products Description of Operation The FPF1015/6/7/8 are low R DS(ON) N-Channel load switches with controlled turn-on. The core of each device is a 34m Ω (VIN = 1V, VON = 3V) N-Channel MOSFET and is customized for a low input operating range of 0.8 to 1.8V. The ON pin controls the state of the switch. The FPF1016 and FPF1018 contain a 60Ω(typ) on-chip resistor which is connected internally from VOUT to GND for quick output discharge when the switch is turned off. On/Off Control The ON pin is active high and it controls the state of the switch. Applying a continuous high signal will hold the switch in the ON state. In order to minimize the switch on resistance, the ON pin voltage should exceed the input voltage by 2V. This device is compatible with a GPIO (Gener al Purpose Input/Output) port, where the logic voltage level can be configured to 4V ≥ VON ≥ VIN+2V and power consumed is less than 1µA in steady state. Timing Diagram where: tdON = Delay On Time tR =V OUT Rise Time tON = Turn On Time tdOFF = Delay Off Time tF =V OUT Fall Time tOFF = Turn Off Time VON VOUT 10% 10% 10% 90% 90% 90% tdON tR tON tdOFF tF tOFF
Application Information
To limit the voltage drop on the input supply caused by transient in-rush currents when the switch turns-on, a capacitor must be placed between V IN and GND. For minimized voltage drop, especially when the operating voltage approaches 1V and a fast slew rate part (FPF1015 and FPF1016) is selected, a 10µF ceramic capacitor should be placed close to the VIN pins. Higher values of C IN can be used to further reduce the voltage drop during higher current modes of operation. Output Capacitor A 0.1µF capacitor, C L, should be placed between V OUT and GND. This capacitor will prev ent parasitic board inductance from forcing V OUT below GND when the switch turns-off. If the application has a capacitive load, the FPF1016 and FPF1018 can be used to discharged that load through an on-chip output discharge path. Board Layout For best performance, all traces should be as short as possible. To be most effective, the input and output capacitors should be placed close to the device to mini mize the effects that parasitic trace inductances may have on normal and short-circuit operation. Using wide traces or large copper planes for all pins (VIN, V OUT, ON and GND) will help minimize the parasitic electrical effects along with minimizing the case to ambient thermal impedance. OFF ON ON VIN GND FPF1015/6/7/8 VOUT VIN = 0.8-1.8V CIN RL CL
An improper layout could result in higher junction temperature. exceeding the maximum absolute power dissipation of 1.2W. are listed in order of the significance of their impact.
- Thermal performance of the load switch can be improved by
- Embedding two exposed through-hole vias into the DAP
the device to maximize the area available to the ground pad. to demonstrate FPF1015/6/7/8 load switches functions. Figure 21. FPF1015/6/7/8 Demo board TOP , SST, ASTOP
15 M il
14 M il
10 www.fairchildsemi.comFPF1015/6/7/8 Rev. D FPF1015/6/7/8 IntelliMAXTM 1V Rated Advanced Load Management Products Dimensional Outline and Pad Layout
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