Datasheet LTC4417 (Linear Technology) - 4

LTC4417
e lecTrical characTerisTics The
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denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. For all tests, V1 = VS1, V2 = VS2, V3 = VS3. Unless otherwise noted, V1 = V2 = V3 = VOUT = 12V, HYS = GND. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS Input/Output Pins
VVALID(OL) VALID1 to VALID3 Output Low Voltage I = 1mA, (V1 to V3) = 2.5V, VOUT = 0V l 0.25 0.55 V tpVALID(OFF) VALID1 to VALID3 Delay OFF From OV/UV Fault l 5 8 13 µs VCAS(OH) CAS Output High Voltage I = –1µA l 1.4 2 3 V VCAS(OL) CAS Output Low Voltage I = 1mA l 0.2 0.4 V ICAS CAS Pull-Up Current SHDN = 0V, CAS = 1V l –6 –20 –40 µA tpCAS(EN) CAS Delay from VG(OFF) VOUT = 11V l 0.4 0.7 1.3 µs VEN(THR) EN Threshold Voltage EN Rising l 0.6 1 1.4 V VSHDN(THR) SHDN Threshold Voltage SHDN Rising l 0.4 0.8 1.2 V VSHDN_EN(HYS) SHDN, EN Threshold Hysteresis 100 mV ISHDN_EN SHDN, EN Pull-Up Current SHDN = EN = 0V l –0.5 –2 –5 µA ILEAK SHDN, EN, VALID1 to VALID3, CAS Leakage SHDN = EN = (VALID1 to VALID3) = 36V, l ±1 µA Current CAS = 5.5V
OV, UV Protection Circuitry
VOV_UV(THR) OV1 to OV3, UV1 to UV3 Comparator Threshold VOUT = 11V, OV1 to OV3 Rising, UV1 to UV3 l 0.985 1 1.015 V Falling VOV_UV(HYS) OV1 to OV3, UV1 to UV3 Comparator VOUT = 11V l 15 30 45 mV Hysteresis IUV_OV(LEAK) OV1 to OV3, UV1 to UV3 Leakage Current OV1 to OV3 = 1.015V, UV1 to UV3 = 0.985V l ±20 nA IOV_UV(MIN) Minimum External Hysteresis Current IHYS = –400nA l 35 50 75 nA IOV_UV(MAX) Maximum External Hysteresis Current IHYS = –4µA l 420 520 620 nA VHYS HYS Voltage IHYS = –4µA l 470 495 520 mV tVALID V1 to V3 Validation Time 100 256 412 ms
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings
Note 4:
Specification represents the total diode-ORed current of V1 to V3 may cause permanent damage to the device. Exposure to any Absolute input supplies, selecting the highest voltage as the input source. If two Maximum Rating condition for extended periods may affect device input supplies are similar in voltage and higher than the remaining input reliability and lifetime. supply voltage, the current is split evenly between the two higher voltage
Note 2:
All currents into device pins are positive; all currents out of device supplies. Current is split evenly if all supplies are equal. pins are negative. All voltages are referenced to GND unless otherwise
Note 5:
Falling edge of G1 to G3 measured from 11V to 8V. specified.
Note 6:
Rising edge of G1 to G3 measured from 7V to 11V.
Note 3:
Each V1 to V3 supply current specification includes current into
Note 7:
UV1 driven below VOV,UV(THR). Time is measured from respective the corresponding VS1 to VS3 for the channel(s) being tested. rising edge G1 to G3 crossing (VS1 to VS3) – 3V to next valid priority falling edge G1 to G3 crossing (VS1 to VS3) – 3V. 4417f 4 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Functional Block Diagram Timing Diagram Operation Applications Information Typical Applications Package Description Typical Application Related Parts