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LM25010 bảng dữ liệu(PDF) 4 Page - National Semiconductor (TI) |
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LM25010 bảng dữ liệu(HTML) 4 Page - National Semiconductor (TI) |
4 / 17 page Absolute Maximum Ratings (Note 1) If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. VIN to RTN -0.3V to 45V BST to RTN -0.3V to 59V SW to RTN (Steady State) -1.5V BST to VCC 45V BST to SW 14V VCC to RTN -0.3V to 14V SGND to RTN -0.3V to +0.3V SS to RTN -0.3V to 4V VIN to SW 45V All Other Inputs to RTN -0.3V to 7V ESD Rating (Note 2) Human Body Model 2kV Storage Temperature Range -65˚C to +150˚C Lead Temperature (Soldering 4 sec) (Note 4) 260˚C Operating Ratings (Note 1) VIN Voltage 6.0V to 42V Junction Temperature LM25010 −40˚C to + 125˚C Electrical Charateristics Specifications with standard type are for T J = 25˚C only; limits in boldface type ap- ply over the full Operating Junction Temperature (T J) range. Minimum and Maximum limits are guaranteed through test, de- sign, or statistical correlation. Typical values represent the most likely parametric norm at T J = 25˚C, and are provided for ref- erence purposes only. Unless otherwise stated the following conditions apply: V IN = 24V, RON = 200k Ω. See (Note 5). Symbol Parameter Conditions Min Typ Max Units V CC Regulator V CCReg V CC regulated output 6.6 7 7.4 Volts V IN -VCC I CC = 0 mA, FS ≤ 200 kHz, 6.0V ≤ V IN ≤ 8.5V 100 mV V CC Bypass Threshold V IN Increasing 8.9 V V CC Bypass Hysteresis V IN Decreasing 260 mV V CC output impedance (0 mA ≤ I CC ≤ 5 mA) V IN = 6.0V 55 Ω V IN = 8.0V 50 V IN = 24V 0.21 V CC current limit (Note 3) V IN = 24V, VCC =0V 15 mA UVLOVcc V CC under-voltage lock-out threshold V CC Increasing 5.25 V UVLO VCC hysteresis V CC Decreasing 180 mV UVLO VCC filter delay 100 mV overdrive 3 µs I IN operating current Non-switching, FB = 3V 645 920 µA I IN shutdown current RON/SD = 0V 90 170 µA Switch Characteristics R DS(on) Buck Switch R DS(on) I SW = 200mA 0.35 0.80 Ω UVLO GD Gate Drive UVLO V BST -VSW Increasing 1.7 3.0 4.0 V UVLO GD hysteresis 400 mV SOFT-START Pin I SS Internal current source 8.0 11.5 15 µA Current Limit I LIM Threshold Current out of I SEN 1 1.25 1.5 A Resistance from ISEN to SGND 130 m Ω Response time 150 ns On Timer, RON/SD Pin t ON - 1 On-time V IN = 10V, RON = 200 k Ω 2.1 2.75 3.4 µs t ON - 2 On-time V IN = 42V, RON = 200 k Ω 500 695 890 ns Shutdown threshold Voltage at RON/SD rising 0.30 0.7 1.05 V Threshold hysteresis 40 mV www.national.com 4 |
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