ISL6123 Intersil Corporation, ISL6123 Datasheet
ISL6123
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ISL6123 Summary of contents
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... Data Sheet Power Sequencing Controllers The ISL6123, ISL6124, and ISL6125 are a family of four channel power sequencing controllers in a variety of functional and personality configurations. The ICs are designed for multiple-voltage systems that require arbitrary power sequencing of various ASIC and processor supply voltages. ...
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... IC ground Input to initiate the start of the programmed sequencing of supplies on or off. ISL6123 has ENABLE. ISL6124, ISL6125 have ENABLE#. RESET# provides a high signal ~160ms after all GATEs are fully enhanced. This delay is for stabilization of output voltages. RESET# will assert upon UVLO not being satisfied or ENABLE / ENABLE# being deasserted ...
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... GATE GATE Turn-On Current GATE Turn-Off Current GATE Turn-On/Off Current Temp. Coeff. GATE Pull-Down High Current GATE High Voltage GATE Low Voltage 3 ISL6123, ISL6124, ISL6125 Thermal Information Thermal Resistance (Typical, Notes QFN Package . . . . . . . . . . . . . . . DD +0.3V DD Maximum Junction Temperature . . . . . . . . . . . . . . . . . . . 150 +0 ...
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... The ISL6123 and ISL6124 have the same functionality except for the ENABLE active polarity with the ISL6124 having an ENABLE# input. Additionally the ISL6123 also has an ultra low power sleep state when ENABLE is low. The ISL6125 has the same personality as the ISL6124 but ...
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... GATE_B GATE_D GATE_C GATE_A RESET# FIGURE 2. ISL6123/ISL6124 TURN-ON AND GLITCH RESPONSE TIMING DIAGRAM 5 ISL6123, ISL6124, ISL6125 Figure 2 illustrates the turn-on and Figure 3 the nominal turnoff timing diagram of the ISL6123 and ISL6124 product. The ISL6125 is similar except the open drains instead of GATE ...
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... UVLO_X>VUVLOVth ENABLE(ISL6123) ENABLE# (ISL6124) DLYOFF_A DLYOFF_B DLYOFF_C DLYOFF_D GATE_C GATE_D GATE_A GATE_B RESET# FIGURE 3. ISL6123/ISL6124 TURN-OFF TIMING DIAGRAM Typical Performance Curves 634 633 632 631 630 V 629 628 627 626 -40 - TEMPERATURE ( FIGURE 4. UVLO THRESHOLD VOLTAGE 6 ISL6123, ISL6124, ISL6125 ...
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... IC variant swapping and modification of UVLO levels and sequencing order by passive component substitution. The board is shipped with the ISL6123 installed in both locations and with two each of the other released variant types loose packed. As this sequencer family has a common function pinout there are no major modifications to the board necessary to evaluate the other ICs ...
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... ENABLE# 2.5VOUT 1.5VOUT 1V/DIV FIGURE 7. ISL6124 SEQUENCED TURN-ON T delENLO DLY_Vth TIM 1V/DIV EN 2V/DIV FIGURE 9. ISL6123 SINGLE CHANNEL TURN-ON 8 ISL6123, ISL6124, ISL6125 RESET# 3.3VOUTPUT ENABLE# 1V/DIV 40ms/DIV FIGURE 8. ISL6124 SEQUENCED TURN-OFF GATE 2V/DIV GATE 2V/DIV 3.3VO 1V/DIV 3.3VO 1V/DIV RESET# 2V/DIV ...
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... EN1 1 EN2 7.681K 4.99K 5.98K 5.45K 4.99K 3.01K 1.47K 2.26K 1 SYSRST# 9 ISL6123, ISL6124, ISL6125 + 1µ DLY_ON_B ENABLE1 11 C6 0.01µF 15 DLY_ON_D ENABLE2 C3 16 0.1µF DLY_ON_C C7 0.068µF 21 DLY_ON_A 0.01µ UVLO_B DLY_OFF_C C8 0.047µF ...
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... Load Resistor RL3 3.3V Load Resistor RL2 2.5V Load Resistor RL1 1.5V Load Resistor 10 ISL6123, ISL6124, ISL6125 Intersil, ISL6124IR 4 Supply Sequencer SI4922DY or equiv, Dual 8A, 30V, 0.018Ω, N-Channel MOSFET 8.45kΩ 1%, 0402 1.47kΩ 1%, 0402 7.68kΩ 1%, 0402 2.26kΩ 1%, 0402 6.98kΩ 1%, 0402 3.01kΩ ...
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... However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries. For information regarding Intersil Corporation and its products, see www.intersil.com 11 ISL6123, ISL6124, ISL6125 L24.4x4 24 LEAD QUAD FLAT NO-LEAD PLASTIC PACKAGE (COMPLIANT TO JEDEC MO-220VGGD-2 ISSUE C) ...