Rainbow Electronics MAX781 - Manual (Page 3)

MAX781
PDA/Hand-Held Computer Power Controller
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ELECTRICAL CHARACTERISTICS (continued)
(BATT = 6V, power-on reset state, T A = T MIN to T MAX , unless otherwise noted.)
VHI = 14.2V, GDSEL_ = 0,
I
SINK = 20µA
Standby mode, 4V < BATT < 18V, 0mA < I 3OUT < 10mA
VHI = 14.2V, GDSEL_ = 1,
I
SOURCE = 1µA
Operate mode,
VHI = 18V,
VPPA1 = VPPA0 = 0,
VPPB1 = VPPB0 = 0,
GDSEL1 to GDSEL5 = 0
Low-power mode, 4V < BATT < 18V, 0mA < I 3OUT < 1mA
VHI = 20V
TEMP falling
High or low, BST - LX = 4.5V
Operate mode,
I
SINK = 200µA,
VPPA1 = VPPA0 = 0,
VPPB1 = VPPB0 = 0,
GDSEL1 to GDSEL5 = 0
Low, 5OUT = 4.75V
High, 5OUT = 4.75V
3OUT falling
CONDITIONS
V 0.25 GD_ Output Low Voltage
V 14 GD_ Output High Voltage
µA 45 VHI Input Bias Current
mA 1 VHI Clamp Current
V 20 VHI Clamp Voltage
3.17 3.43
3.17 3.43
75 81
Ω
10 DHI On-Resistance
Ω
10
DLO On-Resistance
15
V 3OUT Output Voltage
mV 80 100 130 CS to 3OUT Current-Limit Threshold
V 2.9 3.0 3.1 3VINT Fault-Detect Threshold
mV 150 3VINT Fault-Detect Hysteresis
UNITS MIN TYP MAX PARAMETER
14.2V < VHI < 18V, VPP_1 = 1, VPP_0 = 1,
0mA < IVPP_ < 60mA
14.2V < VHI < 18V, VPP_1 = 1, VPP_0 = 0,
0mA < IVPP_ < 60mA
14.2V < VHI < 18V, VPP_1 = 0, VPP_0 = 1,
0mA < IVPP_ < 60mA
I SINK = 1mA,
VPP_1 = 0, VPP_0 = 0
V
3.14 3.3 3.49
VPP_Output Voltage
11.4 12.0 12.6
4.75 5.0 5.25
0.25
GD_ = 2.5V, GDSEL_ = 0,
VHI = 14.2V
GD_ = 2.5V, GDSEL_ = 1,
VHI = 14.2V
µA 200 450 900 GD_ Sink Current
µA 6 10 18 GD_ Source Current
TEMP rising
%3OUT
83 89
BATTINT Battery-Detect
Threshold (measured at TEMP)
Operate mode V 12.8 13.5 14.2 VHI Regulation Threshold
Operate mode, 4V < BATT < 18V,
CS to 3OUT = 0mV to 80mV
3.17 3.43
3.3V OUTPUT
VPP REGULATOR
HIGH-SIDE GATE DRIVERS