P14C5N

P14C5N Over voltage protector Description The P14C5N is an Over-Voltage-Protection (OVP) load switch with adjustable OVLO threshold voltage. The device will switch off internal MOSFET to disconnect IN to OUT to protect load when any of input voltage over the threshold. When the OVLO input set below the external OVLO select voltage, the P14C5N automatically chooses the internal fixed OVLO threshold voltage. The over voltage protection threshold voltage can be adjusted with external resistor divider and the OVLO threshold voltage range is 4.5V~16V. The Over temperature protection (OTP) function monitors chip temperature to protect the device. The OCP function turns off OUTPUT if the load current is over the threshold and recovers either by re-applying input power, or by disabling and re-enabling the device with the CTRL pin. The P14C5N is available in DFN2x2-8L. Standard products are Pb-free and Halogen-free. VIN P14C5N OUT IN TVS 1uF VOUT R1 IN 4.7uF OVLO R2 VIN TVS 1uF P14C5N OUT OVLO ILIM ILIM R3 CTRL GND VOUT 4.7uF CTRL CT 100nF R3 GND OVP w/i External OVLO Threshold CT 100nF OVP w/i Internal OVLO Threshold Figure 1. Typical Application P14C5N TOP View IN 1 8 OUT CTRL 2 7 POK OVLO 3 6 GND ILIM 4 5 NC 14C5N XXXXX 14C5N: P14C5N XXXXX: Production Tracing Code Figure 2. Pin order (Top view) and Marking (Top view) Feature Application  Maximum input voltage : 30V  Mobile Handsets and Tablets  Switch ON resistance  Portable Media Players  Ultra fast OVP response time: 50ns Typ.  Peripherals  Programmed over-current protection  Adjustable OVLO threshold voltage: 4.5V-16V,±3%  Fixed internal OVLO threshold voltage: 6.8V, ±3%  OCP setting range: 300mA-3.0A, ±150mA  Over temperature protection Rev.06.13 : 55mΩ Typ. 1 www.prisemi.com P14C5N Over voltage protector Pin Definitions Pin No. Symbol Descriptions 1 IN 2 CTRL OUTPUT power path is enabled when CTRL is logic low or floating; 3 OVLO External OVLO adjustment. Connect a resistor-divider to set different OVLO threshold, VOVLO=1.2x(1+R1/R2) as shown typical application diagram. Connect OVLO to GND when using the internal fixed threshold voltage. R2=120kohm is recommended. Switch Input and Device Power Supply. Current limit adjustment. Connect a resistor to GND to set over current threshold. ILim = 5.6÷R3 (current in A, resistance in kΩ). 4 ILIM For example, ILim = 2.07A if R3 = 2.7kΩ. Short ILIM to GND will disable current limitation. An optional capacitor to GND for OCP response time setting. 5 NC 6 GND 7 POK 8 OUT No connect. Ground. Regulated output whenever VBUS is present. The recommended load current is less than 1mA. Switch Output to Load. LDO POK OUT IN Charge Pump Gate Driver UVLO Logic Driver Current Limit ILIM CTRL OVLO OTP OVP VBG GND Figure 3. IC Block Diagram Rev.06.13 2 www.prisemi.com P14C5N Over voltage protector Absolute maximum rating Parameter(Note1) Symbol Value Units VIN -0.3 ~ 30 V VOUT -0.3 ~ 20 V VCTRL, VOVLO -0.3 ~ 6.0 V Junction temperature TJ 150 ℃ Lead temperature(10s) TL 260 ℃ Tstg -55~150 ℃ Input voltage (IN pin) Output voltage (OUT pin) Input voltage (CTRL, OVLO pin) Storage temperature Note 1: Stresses greater than those listed under "Absolute Maximum Ratings" may 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 may affect device reliability. Recommended Operating Conditions Parameter Symbol Value Units Input voltage VIN 3.5~30 V MAX Continuous Output current IOUT 3 A Ambient operating temperature Topr -40~85 ℃ Rev.06.13 3 www.prisemi.com P14C5N Over voltage protector Electrical Characteristics （TA=25℃，VIN=5V，CIN=1uF，COUT=4.7uF，unless otherwise specified.） Parameter Input voltage range Quiescent current Over voltage quiescent current Disable OVP quiescent current Symbol Conditions VIN Min. Typ. Max. Units 30 V 145 250 uA 200 300 uA 58 108 uA 70 mΩ 3.5 NO Load，CTRL=GND, OVLO=GND VIN=5V NO Load，CTRL=GND, OVLO=GND VIN=30V NO Load，CTRL=5V, OVLO=GND VIN=5V IQ IQ_OVP IQ_DIS ON resistance RON VIN=5V, IOUT=1A 55 OVP response time tOVP VIN rising, CIN=CL=0pF (Note2) 50 OVP set threshold voltage VOVLO_TH 1.135 VOVP_EXTSEL VIN rising 1.2 4.5 ns 1.265 V 16 V 7.004 V Adjust OVP voltage range VOVP_INTSEL 6.596 External OVLO select voltage VOVLO_EXTSEL 0.6 Internal OVLO select voltage VOVLO_INTSEL CTRL high threshold voltage VCTRL_H VCTRL Rising CTRL low threshold voltage VCTRL_L VCTRL Falling UVLO threshold voltage VUVLO VIN rising 2.34 V UVLO hysteresis voltage VUVLO_HYS VIN falling 25 mV VIN=5V, IPOK=0mA 3.8 4.0 V VIN=5V, IPOK=1mA 3.6 3.9 V VIN=30V, IPOK=0mA 5.6 6.0 V VIN=30V, IPOK=1mA 5.4 6.0 V POK output voltage OCP setting range OCP current accuracy Power on delay time 6.8 V 0.15 V 0.6 0.25 VPOK IOCP_RANG 0.30 3.0 A Δ IOCP -150 +150 mA tON_DELAY VIN=0V to 5V 18 25 ms OCP detect delay time at start-up tSDD VIN=0V to 5V 18 25 ms OCP response time tOCP CT not connect 1 5 us Turn On Time tON VOUT=VIN*10% to VOUT=VIN*90% 200 400 us 400 500 Ω Output discharge resistance RDCHG VIN=5V 300 OTP threshold temperature TOTP VIN=5V 155 ℃ OTP hysteresis temperature THYS VIN=5V 20 ℃ Note 2:Guaranteed by design Figure 4. OVP response time test Rev.06.13 4 www.prisemi.com P14C5N Over voltage protector Function Descriptions 1. OCP Response Time Setting The OCP response time can be set by connect a capacitor from ILIM pin to ground. Besides the value of capacitor, the response time also depend on the load current step. Some measurement value are list as below for general design reference. The OCP response time is 1us(TYP), when CT is not connect. Rev.06.13 OCP response time, Ilimit(mA) CT(nF) Iload step(mA) 510 47 0-600 727 510 47 0-800 424 510 47 0-1000 324 510 47 200-600 807 510 47 200-800 384 510 47 300-600 653 510 47 300-800 284 990 47 0-1100 367 990 47 0-1200 264 990 47 0-1500 112 990 47 500-1200 283 990 47 500-1500 167 990 47 600-1200 252 990 47 600-1500 137 990 68 0-1100 633 990 68 0-1200 503 990 68 0-1500 350 990 68 500-1200 433 990 68 500-1500 244 990 68 600-1200 374 990 68 600-1500 203 990 100 0-1100 1047 990 100 0-1200 827 990 100 0-1500 547 990 100 500-1200 668 990 100 500-1500 387 990 100 600-1200 587 990 100 600-1500 327 5 tocp_res(us) www.prisemi.com P14C5N Over voltage protector 2. Over Current Protection (OCP) at Start-up After VIN power on, the IC then waits for duration tON_DELAY for the input voltage to stabilize. If, after tON_DELAY, the input voltage are safe, the OUTPUT is turned on. At this time, If the load current exceed the IOCP threshold, the device will continuously detect the current for a blanking duration of tSDD. If the load current returns to less than IOCP before tSDD times out, the device continues to operate. However, if the over current situation persists for tSDD, the device will cut off the output voltage. The OUTPUT is turned on either by re-applying input power, or by disabling and re-enabling the device with the CTRL pin. 3. Over Current Protection (OCP) after Start-up If the load current rises to the OCP threshold after start-up, the device will cut off the output voltage immediately (response in 1us), see figure 10. The OUTPUT is turned on either by re-applying input power, or by disabling and re-enabling the device with the CTRL pin. The OCP threshold is calculated by the equation: ILim = 5.6÷R3 (current in A, resistance in kΩ) For example, ILim = 2.07A if R3 = 2.7kΩ. Note: It takes 18ms after OUTPUT on for OCP begins to detect. See figure 9. 4. Over-voltage Lockout (OVLO) When VIN exceeds 6.8V (or the set value by external resistors), the over-voltage lockout (OVLO) circuit turns off the protected power switch. The OVP threshold is calculated by the equation: VOVLO=1.2x(1+R1/R2). R2=120kohm is recommended. 5. Under-voltage Lockout (UVLO) The under-voltage lockout (UVLO) circuit disables the power switch until the input voltage reaches the UVLO turn on threshold. Built-in hysteresis prevents unwanted on and off cycling because of input voltage droop during turn on. Rev.06.13 6 www.prisemi.com P14C5N Over voltage protector Typical Operating Performance VIN VIN VOUT VOUT 5ms/div 1ms/div Figure 5. Input Power on Response Figure 6. Input Power off Response VIN, from 6.8V to 7.1V VIN, from 7.1V to 6.8V VOUT VOUT 2ms/div 500us/div Figure 7. OVP Response Figure 8. OVP Recovery Response VIN VIN IOUT VOUT VOUT IOUT 200us/div 5ms/div Figure 9. OCP Response at Start-up Figure 10. OCP Response after Start-up (Rload=3Ω,Rlim=5.6kΩ) Rev.06.13 (Rload=5Ω to 3.5Ω,Rlim=5.6kΩ) 7 www.prisemi.com P14C5N Over voltage protector VIN=5.0V, NO LOAD Figure 11. Input current vs. Temperature Rev.06.13 Figure 12. OVP threshold voltage vs. Temperature 8 www.prisemi.com P14C5N Over voltage protector Product dimension (DFN2X2-8L) D b b1 E E1 F L e h PIN1 TOP VIEW D1 PIN1 SIDE VIEW A1 C A BOTTOM VIEW Millimeters Dim MIN Typ. MAX A 0.70 0.75 0.80 A1 0.000 0.020 0.050 b 0.200 0.250 0.300 b1 Rev.06.13 0.18REF C 0.180 0.200 0.220 D 1.900 2.000 2.100 E 1.900 2.000 2.100 D1 1.100 1.200 1.300 E1 0.600 0.700 0.800 e 0.475 0.500 0.525 L 0.300 0.350 0.400 F 0.280 0.300 0.320 h 0.230 0.280 0.330 9 www.prisemi.com P14C5N Over voltage protector IMPORTANT NOTICE and are registered trademarks of Prisemi Electronics Co., Ltd (Prisemi) ,Prisemi reserves the right to make changes without further notice to any products herein. Prisemi makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does Prisemi assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. “Typical” parameters which may be provided in Prisemi data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. Prisemi does not convey any license under its patent rights nor the rights of others. The products listed in this document are designed to be used with ordinary electronic equipment or devices, Should you intend to use these products with equipment or devices which require an extremely high level of reliability and the malfunction of with would directly endanger human life (such as medical instruments, aerospace machinery, nuclear-reactor controllers, fuel controllers and other safety devices), please be sure to consult with our sales representative in advance. Website: http://www.prisemi.com For additional information, please contact your local Sales Representative. ©Copyright 2009, Prisemi Electronics is a registered trademark of Prisemi Electronics. All rights are reserved. 修订记录： 2017.11.01（V0.6.1）： 2018.04.02（V0.6.2）： 2018.05.12（V0.6.3）： 2018.05.22（V0.6.4）： 2018.05.25（V0.6.5）： Rev.06.13 初版； 增加一些参数信息； 更新一些参数错误； 更新一些参数错误； 更改过压点调节范围为 4.5-15v； 10 www.prisemi.com