Datasheet MAX16956 (Maxim) - 3
| 制造商 | Maxim |
| 描述 | 36V, 300mA, Mini Buck Converter with 1.1µA IQ |
| 页数 / 页 | 16 / 3 — Electrical Characteristics (continued). PARAMETER. SYMBOL. CONDITIONS. … |
| 文件格式/大小 | PDF / 1.9 Mb |
| 文件语言 | 英语 |
Electrical Characteristics (continued). PARAMETER. SYMBOL. CONDITIONS. MIN. TYP. MAX. UNITS. RESET OUTPUT (RESET). LOGIC LEVELS
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文件文字版本
MAX16956 36V, 300mA, Mini Buck Converter with 1.1µA IQ
Electrical Characteristics (continued)
(VSUP = VEN = 14V, VMODE = 0V, TA = TJ = -40°C to +125°C, unless otherwise noted. Typical values are at TA = +25°C, unless otherwise noted.) (Note 2)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
FB Line Regulation ΔVLINE 6V ≤ VSUP ≤ 36V 0.02 %/V High-Side DMOS RDSON RON,HS VBIAS = 5V, ILX = 200mA 1000 2200 mΩ Low-Side DMOS RDSON RON,LS VBIAS = 5V, ILX = 200mA 500 1200 mΩ DMOS High-Side Current-Limit Threshold IMAX 0.425 0.5 0.575 A DMOS High-Side Skip-Mode Peak-Current Threshold ISKIP 70 100 130 mA DMOS Low-Side Zero-Crossing Threshold IZX 40 mA DMOS Low-Side Negative Current-Limit Threshold INEG FPWM mode -0.320 A Soft-Start Ramp Time tSS 5.4 ms LX Rise Time tRISE,LX (Note 3) 6 ns Minimum On-Time tON_MIN 60 ns Maximum Duty Cycle DCMAX 97 % PWM Switching Frequency fSW 1.95 2.1 2.25 MHz Spread-Spectrum Range SS Spread-spectrum option only ±6 %
RESET OUTPUT (RESET)
V RESET Threshold THR_RES VOUT rising 90 92 94 %VOUT VTHF_RES VOUT falling 88 90 92 RESET Debounce tDEB 12 µs RESET High Leakage Current ILEAK,RES TA = +25°C 1 µA RESET Low Level VOUT,RES Sinking 1mA 0.4 V
LOGIC LEVELS
EN Input High Threshold VIH,EN 2.4 V EN Input Low Threshold VIL,EN 0.4 V EN Input Current IIN,EN 0.1 µA MODE Input High Threshold VIH,MODE 1.4 V MODE Input Low Threshold VIL,MODE 0.4 V MODE Internal Pulldown RPD,MODE 1000 kΩ
THERMAL PROTECTION
Thermal Shutdown TSHDN (Note 3) +175 °C Thermal-Shutdown Hysteresis TSHDN,HYS (Note 3) +15 °C
Note 2:
Limits are 100% tested at TA = +25°C (and/or TA = +125°C). Limits over the operating temperature range and relevant supply voltage range are guaranteed by design and characterization.
Note 3:
Guaranteed by design; not production tested.
Note 4:
When the typical minimum on-time of 80ns is violated, the device skips pulses. www.maximintegrated.com Maxim Integrated │ 3
Electrical Characteristics (continued)
(VSUP = VEN = 14V, VMODE = 0V, TA = TJ = -40°C to +125°C, unless otherwise noted. Typical values are at TA = +25°C, unless otherwise noted.) (Note 2)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
FB Line Regulation ΔVLINE 6V ≤ VSUP ≤ 36V 0.02 %/V High-Side DMOS RDSON RON,HS VBIAS = 5V, ILX = 200mA 1000 2200 mΩ Low-Side DMOS RDSON RON,LS VBIAS = 5V, ILX = 200mA 500 1200 mΩ DMOS High-Side Current-Limit Threshold IMAX 0.425 0.5 0.575 A DMOS High-Side Skip-Mode Peak-Current Threshold ISKIP 70 100 130 mA DMOS Low-Side Zero-Crossing Threshold IZX 40 mA DMOS Low-Side Negative Current-Limit Threshold INEG FPWM mode -0.320 A Soft-Start Ramp Time tSS 5.4 ms LX Rise Time tRISE,LX (Note 3) 6 ns Minimum On-Time tON_MIN 60 ns Maximum Duty Cycle DCMAX 97 % PWM Switching Frequency fSW 1.95 2.1 2.25 MHz Spread-Spectrum Range SS Spread-spectrum option only ±6 %
RESET OUTPUT (RESET)
V RESET Threshold THR_RES VOUT rising 90 92 94 %VOUT VTHF_RES VOUT falling 88 90 92 RESET Debounce tDEB 12 µs RESET High Leakage Current ILEAK,RES TA = +25°C 1 µA RESET Low Level VOUT,RES Sinking 1mA 0.4 V
LOGIC LEVELS
EN Input High Threshold VIH,EN 2.4 V EN Input Low Threshold VIL,EN 0.4 V EN Input Current IIN,EN 0.1 µA MODE Input High Threshold VIH,MODE 1.4 V MODE Input Low Threshold VIL,MODE 0.4 V MODE Internal Pulldown RPD,MODE 1000 kΩ
THERMAL PROTECTION
Thermal Shutdown TSHDN (Note 3) +175 °C Thermal-Shutdown Hysteresis TSHDN,HYS (Note 3) +15 °C
Note 2:
Limits are 100% tested at TA = +25°C (and/or TA = +125°C). Limits over the operating temperature range and relevant supply voltage range are guaranteed by design and characterization.
Note 3:
Guaranteed by design; not production tested.
Note 4:
When the typical minimum on-time of 80ns is violated, the device skips pulses. www.maximintegrated.com Maxim Integrated │ 3