Rainbow Electronics MAX6871 - Manual (Page 3)

MAX6870/MAX6871
EEPROM-Programmable Hex/Quad
Power-Supply Sequencers/Supervisors with ADC
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PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
IN1 Input Leakage Current I LIN1 For V IN1 < the highest of V IN3 to V IN6 100 140 µA
IN2 Input Impedance R IN2 160 230 320 k Ω
IN3 to IN6 Input Impedance
R IN3 to
R IN6
V IN1 > 6.5V 70 100 145 k Ω
Power-Up Delay t PU
V ABP
≥ V
UVLO 3.5 ms
IN_ to PO_ Delay t DPO V IN_ falling or rising, 100mV overdrive 25 µs
000 25 µs
001 1.406 1.5625 1.719
010 5.625 6.25 6.875
011 22.5 25 27.5
100 45 50 55
101 180 200 220
110 360 400 440
PO_ Timeout Period t RP
Register contents
(Table 25)
111 1440 1600 1760
ms
V ABP
≥ +2.5V, I
SINK = 500µA 0.3 PO1–PO4 (MAX6870), PO1/PO2
(MAX6871) Output Low (Note 3)
V OL
V ABP
≥ +4.0V, I
SINK = 2mA 0.4
V
V ABP
≥ +2.5V, I
SINK = 1mA 0.3 P O5–P O8 ( M AX 6870) , P O 3/P O4/
P O5 ( M AX 6871) O utp ut Low ( N ote 3)
V
OL
V ABP
≥ +4.0V, I
SINK = 4mA 0.4
V
PO1–PO8 Output Initial Pulldown
Current
I PD V ABP
≤ V
UVLO , V PO_ = 0.8V 10 40 µA
PO1–PO8 Output Open-Drain
Leakage Current
I LKG Output high impedance -1 +1 µA
PO1–PO8 Output Pullup
Resistance, Weak Pullup Selected
R PU V PO_ = 2V 6.6 10 15.0 k Ω
PO1–PO4 (MAX6870), PO1/PO2
(MAX6871) Turn-On Time, Charge
Pump Selected (Note 4)
t ON
C PO_ = 1500pF, V ABP = +3.3V,
V PO_ = +7.8V
0.5 1.5 3.0 ms
PO1–PO4 (MAX6870), PO1/PO2
(MAX6871) Turn-Off Time, Charge
Pump Selected
t OFF
C PO_ = 1500pF, V ABP = +3.3V,
V PO_ = +0.5V
30 µs
With respect to V ABP , I PO_ < 100nA 5.5 PO1–PO4 (MAX6870), PO1/PO2
(MAX6871) Output High,
Charge Pump Selected (Notes 3, 4)
V OHCP
With respect to V ABP , I PO_ < 1µA 4.0 5.0 6.0
V
Any one of V IN3 to V IN6
≥ +2.7V, I
SOURCE =
10mA, output pulled up to the same IN_
1.5
Any one of V IN3 to V IN6
≥ +2.7V, I
SOURCE =
1mA, output pulled up to the same IN_
0.8 x
V IN_
PO5–PO8 (MAX6870), PO3/PO4/
PO5 (MAX6871) Output High,
Push-Pull Selected (Note 3)
V OH
Any one of V IN3 to V IN6
≥ +4.5V, I
SOURCE =
2mA, output pulled up to the same IN_
0.8 x
V IN_
V
ELECTRICAL CHARACTERISTICS (continued)
(V IN1 = +6.5V to +13.2V, V IN2 = +10V, V IN3 to V IN6 = +2.7V to +5.5V, AUXIN_ = GPI_ = GND, MARGIN = MR = DBP, T A = -40°C to
+85°C, unless otherwise noted. Typical values are at T A = +25°C.) (Notes 1 and 2)