Rainbow Electronics DS2784 - Manual (Page 3)

DS2784: 1-Cell Stand-Alone Fuel Gauge IC with Li+ Protector and SHA-1 Authentication
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PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
DQ, PIO Voltage Range -0.3 +5.5 V
DQ, PIO Input-Logic High V
IH
1.5 V
DQ, PIO Input-Logic Low V
IL
0.6 V
DQ, PIO Output-Logic Low V
OL
IOL = 4mA 0.4 V
DQ, PIO Pullup Current I
PU
Sleep mode,
V
PIN
= V
DD
- 0.4V
0.2 μA
DQ, PIO Pulldown Current I
PD
Active mode,
V
PIN
= 0.4V
0.2 μA
DQ Input Capacitance C
DQ
50 pF
DQ Sleep Timeout t
SLEEP
DQ < V
IL
2 9 s
PIO, DQ Wake Debounce t
WDB
B
Sleep mode 100 ms
SHA-1 COMPUTATION TIMING
Computation Time t
SHA
30 ms
ELECTRICAL CHARACTERISTICS: Protection Circuit
(V
DD
= 2.5V to 4.6V, T
A
= 0 °C to +50°C, unless otherwise noted. Typical values are at T
A
= +25 °C.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
V
OV
= 11000b 4.457 4.482 4.507
Overvoltage Detect V
OV
V
OV
= 00011b 4.252 4.277 4.302
V
Charge-Enable Voltage V
CE
Relative to V
OV
-75 -100 -125 mV
Undervoltage Detect V
UV
2.40 2.45 2.50 V
OC = 11b -57 -72 -87
Overcurrent Detect: Charge V
COC
OC = 00b -15.5 -23.5 -31.5
mV
OC = 11b 76 96 116
Overcurrent Detect: Discharge V
DOC
OC = 00b 23.5 35.5 47.5
mV
SC = 1b 240 300 360 mV
Short-Circuit Current Detect V
SC
SC = 0b 120 150 180 mV
Overvoltage Delay t
OVD
(Note 6) 425 1150 ms
Undervoltage Delay t
UVD
(Notes 6, 7) 84 680 ms
Overcurrent Delay t
OCD
8 10 12 ms
Short-Circuit Delay t
SCD
80 120 160 μs
Test Threshold V
TP
COC, DOC conditions 0.3 0.8 1.5 V
Test Current I
TST
SC, COC, DOC condition 10 20 40 μA
PLS Pulldown Current I
PPD
Sleep mode 30 200 600 μA
Recovery Current I
RC
VUV condition,
max: V
PLS
= 15V,
V
DD
= 1V
min: V
PLS
= 4.2V,
V
DD
= 2V
2.5 5.0 10.00 mA