Datasheet SCM1212A (Mornsun) - 3

Unless otherwise specified,the fol owing parameters are measured in the conditions of VVIN= 5V. Recommended Operating Conditions Parameters Min Max Unit Input Voltage VVIN 4 8 V Drain Voltage of MOSFET VVD1/VVD2 -0.7 20 V Output Switching Current of Primary Winding ID1,,ID2 350 mA Operation Junction Temperature TJ -40 125 ℃ Heating current is 1A and heating time is 300s,test current is 10mA and test time is 300s. Thermal Resistance Information Junction-to-ambient thermal resistance θJA 200 ℃/W Note: Because SOT23-5 has smal packaging size,thermal resistance between components and board θJB and thermal resistance between components and shel θJC have no reference value for system design.The reference standard is JESD51-1. Electrical Characteristics Unless otherwise specified,VVIN= 5V and the environment temperature is 25°C. Symbol Corresponding Parameters Test Conditions Min Typ Max Unit Supply Section (VIN Pin) I Operating Current RUN of Chip VVIN=5V 0.4 0.8 1.2 mA I IVIN when VVIN is in START under-voltage lockout VVIN=3V 1.26 mA VVIN_ON Start-up Voltage VVIN voltage increasing 3.4 3.7 4 V V Voltage when VINis in VIN_OFF under-voltage lockout VVIN voltage decreasing 2.7 3 3.3 V T Temperature of OTP Over-temperature Protection 162 ℃ T Return Difference of OTPH Over-temperature Protection 32 ℃ Drain Port of MOSFET (VD1/VD2 Pin) B Breakdown Voltage of MOS VDSS Transistor VVIN=0V,,IDS=100uA 27 43 V T R J=25℃,,IDS=0.2A 0.38 1.5 DS_ON On Resistance (VVIN=5V) TJ=100℃,,IDS=0.2A 0.47 Ω T R J=25℃,,IDS=0.2A 0.43 DS_ON On Resistance (VVIN=4V) TJ=100℃,,IDS=0.2A 0.53 ISOFT Current of Soft Start VVD1=VVD2=3V 350 475 600 mA Internal Time FOSC Operating Frequency 246 273 300 kHz T Delay Time of Short Circuit D_OSP Protection FOSC=250kHz 100 ms T Sleep Time of Short Circuit SLEEP Protection FOSC=250kHz 800 ms Switch Characteristics Unless otherwise specified,VVIN= 5V and the environment temperature is 25°C. Symbol Corresponding Parameters Test Conditions Min Typ Max Unit tr VD1,VD2 output rise time VVIN=5V,See Figure 9 20 ns tf VD1,VD2 output fal time VVIN=5V,See Figure 9 10 ns tBBM Break-before-make time VVIN=5V,See Figure 9 100 ns 2019.12.13-A/3 Page 3 of 11 MORNSUN Guangzhou Science & Technology Co.,Ltd.reserves the copyright and right of final interpretation Document Outline Mornsun Guangzhou Science & Technology Co.,Ltd.