34652_07 Datasheet, PDF (9/26 Pages) Freescale Semiconductor, Inc – 2.0 A Negative Voltage Hot Swap Controller with Enhanced Programmability

ELECTRICAL CHARACTERISTICS
DYNAMIC ELECTRICAL CHARACTERISTICS
DYNAMIC ELECTRICAL CHARACTERISTICS
Table 4. Dynamic Electrical Characteristics
Characteristics noted under conditions 15 V ≤ V_PWR ≤ 80 V and -40°C ≤ T_A ≤ 85°C. All voltages are referenced to VIN unless
otherwise noted.
Characteristic
UNDERVOLTAGE CONTROL
Symbol
Min
Typ
Max
Unit
UV Active to Gate Low Filter Time
OVERVOLTAGE CONTROL
t _UVAL
—
1.0
—
ms
OV Active to Gate Low Filter Time
DISABLE INPUT CONTROL PIN (DISABLE) ⁽¹⁴⁾
t _OVAL
—
1.0
—
ms
DISABLE Active to Gate Low Filter Time
CURRENT LIMIT CONTROL PINS (ILIM, ICHG)
t _DISAL
—
1.0
—
ms
Short Circuit Protection Delay
Overcurrent Limit Filter Time
Overcurrent Limit Regulation Time
I_CHG Rise Time
Default
Adjustable with an External Capacitor
POWER GOOD OUTPUT PINS (PG, PG) ⁽¹⁵⁾
t _SCPD
—
—
10
µs
t _OCFT
—
100
—
µs
t _OC
—
3.0
—
ms
t _ICHGR
ms
—
1.0
—
1.0
—
—
Power Good Output Delay Time, from Power MOSFET Enhancement to PG
t _PG
ms
and PG Asserted
10
28
46
START-UP AND RETRY DELAY TIMER (TIMER)
Start-Up and Retry Delay Timer
Default
Maximum with External Resistor
Minimum with External Resistor
t _TIMER
ms
130
200
270
—
1000
—
—
100
—
Notes
14. Referenced to VPWR.
15. Referenced to VIN.
Analog Integrated Circuit Device Data
Freescale Semiconductor
34652
9