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MAX1968 Datasheet(PDF) 2 Page - Maxim Integrated Products |
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MAX1968 Datasheet(HTML) 2 Page - Maxim Integrated Products |
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2 / 16 page  MAX1968/MAX1969 Power Drivers for Peltier TEC Modules Maxim Integrated | 2 www.maximintegrated.com Absolute Maximum Ratings Electrical Characteristics (VDD = PVDD1 = PVDD2 = SHDN = 5V, PGND1 = PGND2 = FREQ = GND, CTLI = MAXV = MAXIP = MAXIN = REF, CREF = 1µF, CCOMP = 0.1µF, LLX_ = 3.3µH, CCS = COS2 = 1µF, ITEC < 3ARMS (MAX1968), ITEC < 6ARMS (MAX1969), TA = 0°C to +85°C, unless otherwise noted. Typical values are at TA = +25 °C.) Stresses beyond 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 in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. VDD to GND ..............................................................-0.3V to +6V SHDN, MAXV, MAXIP, MAXIN, CTLI, FREQ to GND .......................................................-0.3V to +6V COMP, OS1, OS2, CS, REF, ITEC to GND ...........................................-0.3V to (VDD + 0.3V) PVDD1, PVDD2 to GND ...............................-0.3V to (VDD + 0.3V) PVDD1, PVDD2 to VDD ..................................................-0.3V to +0.3V PGND1, PGND2 to GND .......................................-0.3V to +0.3V COMP, REF, ITEC Short to GND ...................................Indefinite Peak LX Current (MAX1968) (Note 1).................................±4.5A Peak LX Current (MAX1969) (Note 1)....................................+9A Continuous Power Dissipation (TA = +70°C) 28-Pin TSSOP-EP (derate 23.8mW/°C above +70°C).....1.9W Operating Temperature Range ...........................-40°C to +85°C Maximum Junction Temperature .....................................+150°C Storage Temperature Range .............................-65°C to +150°C Lead Temperature (soldering 10s) ..................................+300°C PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Input Supply Range VDD 3.0 5.5 V VDD = 5V, ITEC = 0 to ±3A, VOUT = VOS1 - VOS2 (MAX1968) -4.3 +4.3 VDD = 5V, ITEC = 0 to 6A, VOUT = VOS1 (MAX1969) 4.3 VDD = 3V, ITEC = 0 to ±3A, VOUT = VOS1 - VOS2 (MAX1968) -2.3 +2.3 Output Voltage Range VOUT VDD = 3V, ITEC = 0 to 6A, VOUT = VOS1 (MAX1969) 2.3 V MAX1968 ±3 Maximum TEC Current ITEC(MAX) MAX1969 6 A Reference Voltage VREF VDD = 3V to 5.5V, IREF = 150µA 1.485 1.500 1.515 V Reference Load Regulation ΔVREF VDD = 3V to 5.5V, IREF = +10µA to -1mA 1.2 5 mV VMAXI_ = VREF 140 150 160 VOS1 < VCS VMAXI_ = VREF/3 40 50 60 VMAXI_ = VREF 140 150 160 Current-Sense Threshold Accuracy VOS1 > VCS VMAXI_ = VREF/3 40 50 60 mV Switch-Fault Reset Voltage 50 150 250 mV VDD = 5V, I = 0.5A 0.04 0.07 NFET On-Resistance RDS(ON-N) VDD = 3V, I = 0.5A 0.06 0.08 Ω VDD = 5V, I = 0.5A 0.06 0.10 PFET On-Resistance RDS(ON-P) VDD = 3V, I = 0.5A 0.09 0.12 Ω VLX = VDD = 5V, TA = +25°C 0.02 10 NFET Leakage ILEAK(N) VLX = VDD = 5V, TA = +85°C 1 µA Note 1: LX has internal clamp diodes to PGND and PVDD_. Applications that forward bias these diodes should take care not to exceed the IC’s package power dissipation limits. |
Similar Part No. - MAX1968_15 |
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Similar Description - MAX1968_15 |
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