Name: Configurable Load Switch and Reset Timer
Brand: Configurable Load Switch and Reset Timer
SKU: FTL11639

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Configurable Load Switch and Reset Timer

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Overview

The FTL11639 is both a timer for resetting a mobile device and an advanced load management device for applications requiring a highly integrated solution.
If the mobile device is off, holding /SR0 LOW (by pressing power-on key) for 38 ms 卤20% turns on the PMIC.
As a reset timer, it has one input and one fixed delay output. It generates a fixed delay of 11.5 s 卤20% by disconnecting the PMIC from the battery power supply. FTL11639 does not accept a new input signal for 400 ms 卤20% to give the PMIC enough time to turn off.
The reset delay can be customized by connecting an external resistor to the DELAY_ADJ pin.
As an advanced load management switch, the FTL11639 disconnects loads powered from the DC power rail (<6 V) with stringent off-state current targets and high load capacitances (up to 200 碌F). The FTL11639 consists of a slew-rate controlled low-impedance MOSFET switch (21 m螐 typical at 4.5 V) that has exceptionally low off-state current drain (<0.2 碌A typical) to facilitate compliance with standby power requirements. The slew-rate-controlled turn-on characteristic prevents inrush current and the resulting excessive voltage drop on power rails.
The low I_CCT enables direct interface to lower-voltage chipsets without external translation, while maintaining low power consumption.
The device is packaged in advanced, fully 鈥済reen,鈥� 1.31 mm x 1.62 mm, Wafer-Level Chip-Scale Packaging (WLCSP); providing excellent thermal conductivity, small footprint, and low electrical resistance for a wide application range.

Applications

Consumer
Consumer Appliances
E-book Reader
Mobile Handsets
Mobile Comm Infrastructure
Portable Devices
Portable Navigation

Features

Factory Customized Turn-on Time: 38 ms
Factory Customized Turn-off Delay: 900 ms
Factory Programmed Reset Delay: 11.5 s
Factory Programmed Reset Pulse: 400 ms
Low < 0.2 碌A Typical Shutdown Current
Off Pin Turns Off Load Switch to Maintain Battery Charge during Shipment and Inventory (Ready to Use Right Out of the Box)
Typical R_ON: 21 m惟 (Typ.) at V_BAT=4.5 V
3.8 A / 4.5 A Maximum Continuous Current (JEDEC 2S2P, No VIA / with Thermal VIA)
Adjustable Reset Delay by an External Resistor (Optional)
Low I_CCT Saves Power Interfacing to Low-Voltage Chips
Input Voltage Operating Range: 1.2 V to 5.5 V
Over-Voltage Protection: Allow Input Pins > VBAT
Slew Rate / Inrush Control with t_R: 2.7 ms (Typical)
Output Capacitor Discharge Function
IEC61000-4-2, Level 4 compliant SYS_WAKE Pin
Zero-Second Test-Mode Enable
8 kV HBM ESD (per JESD22-A114)
ESD Protected:
2 kV CDM (per JESD22-C101)
10 kV HBM ESD (Pin to Pin, V_BAT & V_OUT)

Material Composition

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Case Outline

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Voltages Monitored

V_CC Max (V)

V_(TO) Typ (V)

I_Q Typ (µA)

Reset Active State

Reset Timer

Manual Reset

Watchdog Timer

Reference Price

FTL11639UCX

Obsolete

WLCSP-12

567RZ

260

REEL

3000

5.5

Low

Yes

Price N/A

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Voltage Supervisors | FTL11639

Configurable Load Switch and Reset Timer

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