Motore di ricerca datesheet componenti elettronici |
|
L6997STR Scheda tecnica(PDF) 4 Page - STMicroelectronics |
|
L6997STR Scheda tecnica(HTML) 4 Page - STMicroelectronics |
4 / 30 page L6997S 4/30 CURRENT LIMIT AND ZERO CURRENT COMPARATOR ILIM Input bias current RILIM = 2KΩ to 200KΩ 4.655.4 µA Zero Crossing Comparator offset Phase-gnd -2 2 mV KILIM Current limit factor 1.6 1.8 2 µA ON TIME Ton On time duration VREF=VSENSE OSC=125mV 720 800 880 ns VREF=VSENSE OSC=250mV 370 420 470 ns VREF=VSENSE OSC=500mV 200 230 260 ns VREF=VSENSE OSC=1000mV 90 115 140 ns OFF TIME TOFFMIN Minimum off time 600 ns KOSC/TOFFMIN OSC=250mV 0.20 0.40 VOLTAGE REFERENCE VREF Voltage Accuracy 0 µA < IREF < 100µA 0.594 0.6 0.606 V PWM COMPARATOR Input voltage offset -2 +2 mV IFB Input Bias Current 20 nA INTEGRATOR Over Voltage Clamp VSENSE = VCC 0.62 0.75 0.88 V Under Voltage Clamp VSENSE = GND 0.45 0.55 0.65 V Integrator Input Offset Voltage VSENSE-VREF -4 -4 mV IVSENSE Input Bias Current 20 nA GATE DRIVERS High side rise time VDR=3.3V; C=7nF HGATE - PHASE from 1 to 3V 50 90 ns High side fall time 50 100 ns Low side rise time VDR=3.3V; C=14nF LGATE from 1 to 3V 50 90 ns Low side fall time 50 90 ns PGOOD UVP/OVP PROTECTIONS OVP Over voltage threshold with respect to VREF 118 121 124 % UVP Under voltage threshold 67 70 73 % Upper threshold (VSENSE-VREF) VSENSE rising 110 112 116 % Lower threshold (VSENSE-VREF) VSENSE falling 858891 % VPGOOD ISink=2mA 0.2 0.4 V Table 5. Electrical Characteristics (continued) (VCC = VDR = 3.3V; Tamb = 0°C to 85°C unless otherwise specified) Symbol Parameter Test Condition Min. Typ. Max. Unit |
Codice articolo simile - L6997STR |
|
Descrizione simile - L6997STR |
|
|
Link URL |
Privacy Policy |
ALLDATASHEETIT.COM |
Lei ha avuto il aiuto da alldatasheet? [ DONATE ] |
Di alldatasheet | Richest di pubblicita | contatti | Privacy Policy | scambio Link | Ricerca produttore All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |