Datasheet AP3917B (Diodes) - 4

AP3917B Electrical Characteristics
(VBP = 8.2V, -40C <TA<+125C, unless otherwise specified.)
Symbol Parameter Condition Min Typ Max Unit HV Pin Startup Current Source
IHV HV Supply Current VBP = 7V, VDRAIN = 100V — 3.5 — mA VBP= 8.7V, VDRAIN = I — LEAK Leakage Current of Drain Pin 10 12 µA 400V, TA = +25°C
VBP Voltage Management
V V BP Increasing Level at which HV Supply is BP_HVOFF — 8.1 8.5 8.8 V OFF V V BP Decreasing Level at which HV Supply is BP_HVON — 7.8 8.2 8.6 V ON VBP_HYS VBP Hysteresis (VBP_HVOFF- VBP_HVON) — — 280 — mV VBP_UVLO VBP Minimum Operating Voltage TA = +25°C — 6.5 — V VBP_RESTART VBP Restart Voltage — — 4.5 — V V V I BP Operating Current with MOSFET BP = 8.5V, f = 37kHz, BP1 — — 350 µA Switching D = 40%, TA = +25°C IBP2 VBP Quiescent Current with No Switching TA = +25°C — 110 200 µA IBP_LATCH VBP Latch Off-Current VBP = 8.8V, TA = +25°C — 26 — µA
Internal MOSFET
VDS Breakdown Voltage (Note 5) TA = +25°C 650 — — V TA = +25°C — — 16 RDS(ON) ON Resistance Ω TA = +125°C — — 30
Internal Current Sense
IPK_MAX Maximum Peak Current TA = +25°C 230 280 336 mA tLEB1 Leading-Edge Blanking TA = +25°C — 250 400 ns ISCP Current Set Point for Short Circuit Protection TA = +25°C — 390 468 mA Leading-Edge Blanking for Short Circuit tLEB2 T Protection A = +25° C — 200 — ns
Feedback Input (FB Pin)
tMINOFF Minimum Off-Time TA = +25°C 12.5 17.5 22.5 µs VFB MOSFET Feedback Switch-On Threshold — 2.4 2.5 2.6 V Overload Protection Feedback Trigger VFB_OLP — 1.56 1.7 1.84 V Threshold tOLP Overload Protection Delay Time f = 36kHz — 170 — ms VOLD Open-Loop Detection Voltage TA = +25°C — 60 — mV tOLD Open-Loop Detection Blanking Time f = 15kHz, TA = +25°C — 4.3 — ms
Over Temperature Protection
TOTP Thermal Shutdown Threshold — +135 +150 +165 °C Note: 5. The drain-source voltage is 80% of VDS in the aging condition.

AP3917B 4 of 12 May 2019 Document number: DS41277 Rev. 5 - 2
www.diodes.com
© Diodes Incorporated