POWER SEQUENCER. S-77100 Datasheet

S-77100 SEQUENCER. Datasheet pdf. Equivalent

Part S-77100
Description POWER SEQUENCER
Feature S-77100/77101 Series www.ablicinc.com © ABLIC Inc., 2015 POWER SEQUENCER Rev.1.0_02 The S-77100/7.
Manufacture ABLIC
Datasheet
Download S-77100 Datasheet

S-77100/77101 Series www.ablicinc.com © ABLIC Inc., 2015 P S-77100 Datasheet
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S-77100
S-77100/77101 Series
www.ablicinc.com
© ABLIC Inc., 2015
POWER SEQUENCER
Rev.1.0_02
The S-77100/77101 Series is a power sequencer.
The S-77100 Series can output enable signals of 4 channels, and controls the external power supply circuit. The S-77100
Series turns on and off the enable signals successively by changing "H" and "L" of the ON pin.
The S-77101 Series can output enable signals of 3 channels, and controls the external power supply circuit. The S-77101
Series turns on the enable__s__i_g_n_ als successively by changing the ON pin from "L" to "H", and turns off the enable signals
successively by changing OFF pin from "H" to "L".
The delay time for each enable signal can be set by the external capacitor.
Also, the small 8-Pin TSSOP or SNT-8A package makes high-density mounting possible.
Features
Easy support for sequencing of multiple power supplies.
Delay time can be set by the external capacitor.
Sequence operations of 4 channels can be controlled by 1 input signal. (S-77100 Series)
On-sequence operation and off-sequence operation can be controlled by the separate input signal. (S-77101 Series)
Enable output can be increased by cascade connection.
Low current consumption:
3.0 A typ. (Off period, power-good period, VDD = 3.3 V, Ta = 25°C)
Wide range of operation voltage:
2.2 V to 5.5 V
Operation temperature range:
Ta = 40°C to 85°C
Output form is selectable:
CMOS output, Nch open-drain output
Output logic is selectable:
Active "H", active "L"
Lead-free (Sn 100%), halogen-free:
Applications
Power sequencing for multiple devices
Sequencing for microprocessor and microcontroller
Power sequencing for FPGA
Power sequencing for TV, camera, printer, etc.
Packages
8-Pin TSSOP
SNT-8A
1



S-77100
POWER SEQUENCER
S-77100/77101 Series
Block Diagrams
1. S-77100 Series
Rev.1.0_02
ON
CDLY
VDD
VSS
Status control circuit
Comparator
Charge /
discharge
selection
circuit
Latch
circuit
UVLO
*1
ENBL_A
ENBL_B
ENBL_C
ENBL_D
*1. Selectable as the option
2. S-77101 Series
Figure 1
ON
OFF
Status control circuit
CDLY
VDD
VSS
Comparator
Charge /
discharge
selection
circuit
Latch
circuit
UVLO
*1
ENBL_A
ENBL_B
ENBL_C
*1. Selectable as the option
2
Figure 2





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