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TS2026L Schematic ( PDF Datasheet ) - Taiwan Semiconductor Company

Teilenummer TS2026L
Beschreibung Dual-Channel Power Distribution Switch
Hersteller Taiwan Semiconductor Company
Logo Taiwan Semiconductor Company Logo 




Gesamt 7 Seiten
TS2026L Datasheet, Funktion
TS2026L
Dual-Channel Power Distribution Switch
Pin assignment:
1. ENA 5. OUTB
2. FLGA 6. GND
3. FLGB 7. IN
4. ENB 8. OUTA
140mmax. on-resistance per channel
2.7V to 5.5V operating range
Under voltage lockout
www.DataSheet4GUe.cnomeral Description
The TS2026L is high-side MOSFET switches optimized for general-purpose power distribution requiring circuit
protection.
The TS2026L are internally current limited and have thermal shutdown that protects the device and load. When a
thermal shutdown fault occurs, the output is latched off until the faulty load is removed. Removing that load or toggling
the enable input will reset the device output. Both device employ soft-start circuitry that minimized inrush current in
application where highly capacitive loads are employed. A fault status output flag is asserted during over current and
thermal shutdown conditions. Transient faults are internally filtered.
Features
140mmax. on-resistance per channel
2.7V to 5.5V operating range
500mA min. continuous current per channel
Short-circuit protection with thermal shutdown
Thermal isolated channels.
Fault status flag with 3ms filter eliminates false
assertions.
Under voltage lockout
Reverse current flow blocking (no “body diode”)
Logic-compatible inputs
Soft-start circuit
Low quiescent current
Applications
USB peripherals
General purpose power switching
ACPI power distribution
Notebook PCs
PDAsPC
Card hot swap
Ordering Information
Part No.
TS2026LCS
Operating Temp.
(Ambient)
-40 ~ +85 oC
Package
SOP-8
Absolute Maximum Rating
Supply Voltage
Fault Flag Voltage
Fault Flag Current
Output Voltage
Output Current
Enable input
Storage Temperature
VIN
VFLG
IFLG
VOUT
IOUT
IEN
TSTG
+6
+6
25
+6
Internal Limited
-0.3 ~ +3
-65 ~ +150
V
V
mA
oC
V
oC
TS2026L
1-7 2005/11 rev. A






TS2026L Datasheet, Funktion
Function Description
Fault Flag
The FLG signal is an N-channel open-drain MOSFET output. FLG is asserted (active-low) when either an over current
or thermal shutdown condition occurs. In the case of and over current condition, FLG will be asserted only after the
flag response delay time, tD, has elapsed. This ensured that FLG is asserted only upon valid over current conditions
and that erroneous error reporting is eliminated. For example, false over current condition can occur during hot plug
event when a highly capacitive load is connected and causes a high transient inrush current that exceeds the
current-limit threshold for up to 1ms. The FLG response delay time tD is typically 3ms.
www.DataSheet4UU.cnodmervoltage Lockout
Undervoltage lockout (UVLO) prevents the output MOSFET from turning on until VIN exceeds approximately 2.5V.
Undervoltage detection function only when the switch is enabled.
Figure 1. TS2026L Fault Timing
TS2026L
6-7 2005/11 rev. A

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