MAX4919B データシートの表示（PDF） - Maxim Integrated
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MAX4919B Datasheet PDF : 19 Pages
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Battery Power-Up Logic with Overvoltage
and Overcurrent Protection
ELECTRICAL CHARACTERISTICS (continued)
(VIN = 5V (MAX4919B/MAX4920B) or VIN = 4.2V (MAX4921B), VBTI = 4V, TA = -40°C to +85°C, unless otherwise noted. Typical values
are at TA = +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
GATE DRIVERS
GN1 Turn-On Voltage
VGN1 referenced to GND, IGN1 sourcing 1µA;
MAX4919B/MAX4920B
9
VGN1
VGN1 referenced to GND, IGN1 sourcing 1µA;
MAX4921B
7.8
10
V
8.4
GN1 Pulldown Current
IGPD VIN > OVLO, VGN1 = 5.5V
GP1 Clamp Voltage
VCLAMP VIN - VGP1 when VIN = 28V
GP1 Pulldown Resistor
RGPD
LOGIC INPUTS (PWR_HOLD, HP_PWR, PWR_ON, EN)
Input-High Voltage
VIH VBTI = 5.50V
Input-Low Voltage
VIL
VBTI = 2.3V for PWR_HOLD, HP_PWR and
EN; VBTI = 3V for PWR_ON
PWR_HOLD, EN Input Leakage
Current
ILKG EN, PWR_HOLD = GND or 5.5V
30
mA
12.5 16.5 19.5
V
31
51.5
72
kΩ
1.5
V
0.4
V
-1
+1
µA
PWR_ON, HP_PWR Pulldown
Resistance
LOGIC OUTPUTS (ACOK, ONOK)
Output-Low Voltage
Output-High Leakage Current
TIMING
RIPD
VOL
ISINK = 1mA
200
kΩ
0.4
V
1
µA
IN Debounce Time
ACOK Blanking Time
tINDBC
tBLNKAC
Time from UVLO < VIN < OVLO to VGN1 >
0.3V, CGN1 = 500pF
Time from VGN1 > 0.3V to ACOK low,
CGN1 = 500pF
10
25
40
ms
10
25
40
ms
HP_PWR Debounce Time
tHPDBC
Time for internal pFET to turn on after
VHP_PWR > VIH
10
25
40
ms
ACOK One-Shot Time
t1SHAC
VPWR_HOLD = 0V; time for internal pFET to
turn off after ACOK < VOL (Figure 1)
488 1220 1952
ms
HP_PWR One-Shot Time
t1SHHP
VPWR_HOLD = 0V; time for internal pFET to
turn off after VHP_PWR > VIH (Figure 2)
488 1220 1952
ms
Current-Limit Blanking Time
tCLIM
VBTI = 2.7V; VBTO shorted to GND; time for
internal pFET current to reduce to 10mA
4
10
16
ms
GN1 Turn-On Time
tGON
VGN1 = 0.3V to 8V
(MAX4919B/MAX4920B),
VGN1 = 0.3V to 7V (MAX4921B),
CGN1 = 500pF
10
ms
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