MAX14562 Datasheet, PDF (3/10 Pages) Maxim Integrated Products – 36V-Capable Overvoltage Protector with Regulated Output Voltage

36V-Capable Overvoltage Protector with
Regulated Output Voltage
ELECTRICAL CHARACTERISTICS (continued)
(VIN = +2.2V to +36V, TA = -40NC to +85NC, unless otherwise noted. Typical values are at VIN = +5.0V and TA = +25NC.) (Note 2)
PARAMETER
SYMBOL
TIMING CHARACTERISTICS (Note 4)
CONDITIONS
MIN TYP MAX UNITS
Input Debounce Time
tDEB
VIN_MIN < VIN < VOVLO until charge pump
turns on, see Figure 1
10
20
35
ms
ACOK Time
tACOK
VIN_MIN < VIN < VOVLO to ACOK low until
charge pump turns on, see Figure 1
20
40
70
ms
Turn-on Time During Soft-Start
tON
RLOAD = 100I, CLOAD = 1FF, VOUT =
20% of V_IN to 80% of V_IN, see Figure 1
48
Fs
Overvoltage Turn-Off Time
t_OFF
VIN > VOVLO to VOUT = 80% of VPROV,
R_LOAD = 100I, see Figure 1
1
Fs
THERMAL PROTECTION
Thermal Shutdown
TSHDN
150
NC
Thermal Hysteresis
THYST
20
NC
Note 2: All devices are 100% production tested at TA = +25NC. Limits over the operating temperature range are guaranteed by
design and not production tested.
Note 3: Thermally limited, guaranteed by design, and not production tested.
Note 4: In linear mode, as IOUT increases, the OUT voltage drops due to a voltage across Q1 (see Functional Diagram).
Note 5: All timing characteristics are measured using 20% and 80% levels unless otherwise specified.
VOVLO
VPROV
IN
MIN
VPROV
OUT
t_DEB
tON
tOFF
tDEB
tDEB
tON
IOUT
EN
ACOK
tACOK
tACOK
tDEB
Figure 1. Enable/Select Time
3