1 ACPL-5160 and ACPL-5161 2.5-Amp Gate Drive Optocoupler with Integrated (V ) CE Desaturation Detection and Fault Status Feedback Data Sheet Description Features This family of 2.5-Amp Gate Drive Optocouplers provides 2.5A maximum peak output current Integrated Desaturation (V ) Detection and Fault Status Drive IGBTs up to I = 150A, V = 1200V CE C CE Feedback for IGBT V fault protection in a rugged, CE Optically isolated, FAULT status feedback hermetically sealed package. The devices are capable of Hermetically sealed ceramic package operation and storage over the full military temperature range CMOS/TTL compatible and can be purchased as either commercial-grade products or 500-ns max. switching speeds in fully MIL-STD compliant versions. The military standard devices are manufactured and tested on a MIL-PRF-38534 Soft IGBT turn-off certified line to Class H specifications. Integrated fail-safe IGBT protection DESAT (V ) detection CE Undervoltage Lock-Out protection (UVLO) with CAUTION It is advised that normal static precautions be hysteresis taken in handling and assembly of this User configurable: inverting, noninverting, auto-reset, component to prevent damage and/or auto-shutdown degradation which may be induced by ESD. Wide operating V range: 15V to 30V CC 55C to +125C operating temperature range 15-kV/s Typical Common Mode Rejection (CMR) at V = CM 1. See Selection Guide Lead Configuration Options for available 1000V extensions. Fault Protected IGBT Gate Drive +HV ISOLATION ISOLATION ISOLATION BOUNDARY BOUNDARY BOUNDARY ACPL - 516x ACPL - 516x ACPL - 516x 3-PHASE M INPUT ACPL - 516x ACPL - 516x ACPL - 516x ACPL - 516x ISOLATION ISOLATION ISOLATION ISOLATION BOUNDARY BOUNDARY BOUNDARY BOUNDARY HV FAULT MICROCONTROLLER Broadcom - 1 -ACPL-5160 and ACPL-5161 Data Sheet Typical Fault Protected IGBT Gate Drive Circuit The ACPL-516x is an easy-to-use, intelligent gate driver which makes IGBT V fault protection compact, affordable, and CE easy-to-implement. Features such as user configurable inputs, integrated V detection, undervoltage lockout (UVLO), soft IGBT CE turn-off and isolated fault feedback provide maximum design flexibility and circuit protection. Figure 1 Typical Desaturation Protected Gate Drive Circuit, Noninverting ACPL-516x 1 V V 16 IN+ E C BLANK * 2 V V 15 IN- LED2+ D DESAT 100 : 3 V DESAT 14 CC1 + + C V F 4 GND1 V 13 CC2 R F + + 5 RESET V 12 R C G * V CE 6 FAULT V 11 OUT 7 V V 10 + * LED1+ EE + 8 V V 9 LED1- EE R PULL-DOWN V CE Description of Operation during Fault Condition 1. DESAT terminal monitors the IGBT V voltage through D . CE DESAT 2. When the voltage on the DESAT terminal exceeds 7V, the IGBT gate voltage (V ) is slowly lowered. OUT 3. FAULT output goes low, notifying the microcontroller of the fault condition. 4. Microcontroller takes appropriate action. Output Control The outputs (V and FAULT) of the ACPL-516x are controlled by the combination of V , UVLO and a detected IGBT DESAT OUT IN condition. As indicated in the following table, the ACPL-516x can be configured as inverting or noninverting using the V or V IN+ IN inputs respectively. When an inverting configuration is desired, V must be held high and V toggled. When a noninverting IN+ IN configuration is desired, V must be held low and V toggled. Once UVLO is not active (V V > V ), V is allowed to go IN IN+ CC2 E UVLO OUT high, and the DESAT (pin 14) detection feature of the ACPL-516x will be the primary source of IGBT protection. UVLO is needed to ensure DESAT is functional. Once V > 11.6V, DESAT remains functional until V < 12.4V. Thus, the DESAT detection and UVLO+ UVLO UVLO features of the ACPL-516x work in conjunction to ensure constant IGBT protection. UVLO DESAT Condition V V V Pin 6 (FAULT) Output IN+ IN OUT (V V ) Detected on Pin 14 CC2 E X X Active X X Low XX X Yes Low Low Low X X X X Low XHigh X X X Low High Low Not Active No High High Broadcom - 2 -