DATASHEET ISL6141, ISL6151 FN9079 Rev 2.00 Negative Voltage Hot Plug Controller November 9, 2015 The ISL6141 is an 8-pin, negative voltage hot plug controller Features that allows a board to be safely inserted and removed from a Operates from -20V to -80V (-100V Absolute Max Rating) live backplane. Inrush current is limited to a programmable value by controlling the gate voltage of an external N- Programmable Inrush Current channel pass transistor. The pass transistor is turned off if Programmable Over-Voltage Protection the input voltage is less than the Under-Voltage threshold, or Programmable Under-Voltage Protection TM greater than the Over-Voltage threshold. The IntelliTrip electronic circuit breaker and programmable current limit - 135mV of hysteresis features protect the system against short circuits. When the - Equals ~4.6V of hysteresis at the power supply Over-Current threshold is exceeded, the output current is UVLO (Under-Voltage Lock-Out) ~ 16.5V limited for 600 s before the circuit breaker shuts down the Programmable Current Limit with 600 s time-out FET. If the fault disappears before the 600 s time-out, TM TM IntelliTrip electronic circuit breaker distinguishes normal operation resumes. In addition, the IntelliTrip between Over-Current and Hard Fault conditions electronic circuit breaker has a fast Hard Fault shutdown - Fast shutdown for Hard Faults with a single retry (fault with a threshold set at 4 times the current limit value. When current > 4X current limit value). activated, the GATE is immediately turned off and then Pin Compatible with ISL6140/50. slowly turned back on for a single retry (soft-start). The active low PWRGD signal can be used to directly enable a Power Good Control Output power module (with a low enable input). The ISL6151 is the - Monitors both the DRAIN (voltage drop across the FET) same device but has an active high PWRGD output. and the GATE voltage once both are OK, the Power Good output is latched in the active state. Typical Application (RL, CL are the Load) - PWRGD active high: ISL6151 (H version) GND GND -PWRGD active low: ISL6141 (L version) Pb-free available R4 V DD UV Applications PWRGD R5 ISL6141 OV VoIP (Voice over Internet Protocol) Servers V SENSE GATE DRAIN R6 EE (LOAD) Telecom systems at -48V C1 R3 C2 Negative Power Supply Control CL R2 +24V Wireless Base Station Power RL -48V IN R1 Q1 -48V OUT Related Literature R1 = 0.02 (1%) C1 = 150nF (25V) ISL6140/41 EVAL1 Board Set, Document AN9967 R2 = 10 (5%) C2 = 3.3nF (100V) ISL6142/52 EVAL1 Board Set, Document AN1000 ISL6140/50 Hot Plug Controller, Document FN9039 R3 = 18k (5%) Q1 = IRF530 (100V, 17A, 0.11 ) ISL6116 Hot Plug Controller, Document FN4778 R4 = 549k (1%) CL = 100F (100V) NOTE: See www.intersil.com/hotplug for more information. R5 = 6.49k (1%) RL = equivalent load Pinout R6 = 10k (1%) ISL6141 OR ISL6151 (8 LEAD SOIC) 8 PWRGD/PWRGD 1 V DD TOP VIEW OV 2 7 DRAIN UV 3 6 GATE V 4 5 SENSE EE ISL6141 has active low (L version) PWRGD output pin ISL6151 has active high (H version) PWRGD output pin FN9079 Rev 2.00 Page 1 of 20 November 9, 2015ISL6141, ISL6151 Ordering Information PACKAGE o PART NO. TEMP. RANGE ( C) (RoHS Compliant) PKG. DWG. ISL6141CBZA (See Note) 0 to 70 8 Lead SOIC M8.15 ISL6151CBZA (See Note) 0 to 70 8 Lead SOIC M8.15 (No longer available or supported) ISL6141IBZA (See Note) -40 to 85 8 Lead SOIC M8.15 ISL6151IBZA (See Note) -40 to 85 8 Lead SOIC M8.15 (No longer available or supported) *Add -T suffix to part number for tape and reel packaging. NOTE: Intersil Pb-free products employ special Pb-free material sets molding compounds/die attach materials and 100% matte tin plate termination finish, which is compatible with both SnPb and Pb-free soldering operations. Intersil Pb-free products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J Std-020B. GND GND V DD - UVLO 1.265V R4 + + REGULATOR, - V V EE EE REFERENCES UV - 13V UV 1.255V + R5 + - OV V EE + OV 1.255V - LOGIC + - TIMING V EE GATE DRIVE - R6 HARD 210mV + FAULT + - V EE GATE - 11.1V + - CURRENT + - PWRGD LIMIT 50mV OUTPUT + REGULATOR (ISL6141) V EE DRIVE - + PWRGD - LATCH (ISL6151) 1.3V V EE + LOGIC + - V EE 600s TIMER PWRGD GATE PWRGD GATE DRAIN SENSE V EE LOAD R3 C2 R2 RL C1 CL -48V IN -48V OUT R1 Q1 FIGURE 1. BLOCK DIAGRAM FN9079 Rev 2.00 Page 2 of 20 November 9, 2015