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MCP1630 Datasheet(PDF) 7 Page - Microchip Technology |
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MCP1630 Datasheet(HTML) 7 Page - Microchip Technology |
7 / 26 page © 2005 Microchip Technology Inc. DS21896B-page 7 MCP1630/MCP1630V TEMPERATURE SPECIFICATIONS Current Sense Input Maximum Current Sense Signal MCP1630 VCS_MAX 0.85 0.9 0.95 V Set by maximum error amplifier clamp voltage, divided by 3. Delay From CS to VEXT MCP1630 TCS_VEXT —12 25 ns Maximum Current Sense Signal MCP1630V VCS_MAX 2.55 2.7 2.85 V VIN > 4.25V Maximum CS input range limited by comparator input common mode range. VCS_MAX =VIN-1.4V Delay From CS to VEXT MCP1630V TCS_VEXT — 17.5 35 ns Minimum Duty Cycle DCMIN —— 0 % VFB =VREF +0.1V, VCS =GND Current Sense Input Bias Current ICS_B —-0.1 — µA VIN =5V Internal Driver RDSON P-channel RDSon_P —10 30 Ω RDSON N-channel RDSon_N —7 30 Ω VEXT Rise Time TRISE — 5.9 18 ns CL = 100 pF Typical for VIN =3V VEXT Fall Time TFALL — 6.2 18 ns CL = 100 pF Typical for VIN =3V Protection Features Under Voltage Lockout UVLO 2.7 — 3.0 V VIN falling, VEXT low state when in UVLO Under Voltage Lockout Hysteresis UVLO HYS 50 75 150 mV Thermal Shutdown TSHD — 150 — °C Thermal Shutdown Hysteresis TSHD_HYS —18 — °C Electrical Specifications: VIN = 3.0V to 5.5V, FOSC = 1 MHz with 10% Duty Cycle, CIN = 0.1 µF. TA = -40°C to +125°C. Parameters Sym Min Typ Max Units Conditions Temperature Ranges Operating Junction Temperature Range TA -40 — +125 °C Steady state Storage Temperature Range TA -65 — +150 °C Maximum Junction Temperature TJ — — +150 °C Transient Thermal Package Resistances Thermal Resistance, 8L-DFN (2 mm x 3 mm) θJA — 50.8 — °C/W Typical 4-layer board with two interconnecting vias Thermal Resistance, 8L-MSOP θJA — 208 — °C/W Typical 4-layer board AC/DC CHARACTERISTICS (CONTINUED) Electrical Specifications: Unless otherwise noted, VIN = 3.0V to 5.5V, FOSC = 1 MHz with 10% Duty Cycle, CIN = 0.1 µF, VIN for typical values = 5.0V, TA = -40°C to +125°C. Parameters Sym Min Typ Max Units Conditions Note 1: Capable of higher frequency operation depending on minimum and maximum duty cycles needed. 2: External oscillator input (OSC IN) rise and fall times between 10 ns and 10 µs used for characterization testing. Signal levels between 0.8V and 2.0V with rise and fall times measured between 10% and 90% of maximum and minimum values. Not production tested. 3: The reference input of the internal amplifier is capable of rail-to-rail operation. |
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