71M6521DE Datasheet, PDF (92/107 Pages) Teridian Semiconductor Corporation – Energy Meter IC

SUPPLY CURRENT
PARAMETER
V3P3A + V3P3SYS current
VBAT current
71M6521DE/DH/FE Data Sheet
CONDITION
MIN TYP
Normal Operation,
V3P3A=V3P3SYS=3.3 V
6.1
MPU_DIV=3 (614kHz) CKOUT_E=00,
CE_EN=1,
RTM_E=0,
ECK_DIS=1,
-300
ADC_E=1,
ICE_E=0
MAX
7.7
UNIT
mA
+300
nA
V3P3A + V3P3SYS current vs.
MPU clock frequency
Same conditions as above
0.5
mA/
MHz
V3P3A + V3P3SYS current,
write flash
Normal Operation as above, except write
flash at maximum rate, CE_E=0,
ADC_E=0
9.1
10
mA
VBAT current ^†
VBAT=3.6 V
BROWNOUT mode, <25°C
BROWNOUT mode, >25°C
LCD Mode, 25°C
LCD mode, over temperature
SLEEP Mode, 25°C
Sleep mode, over temperature
48
120
µA
65¹
150¹
µA
5.7
8.5
µA
15¹
µA
2.9
5.0
µA
10¹
µA
†_{Current into V3P3A and V3P3SYS pins is not zero if voltage is applied at these pins in brownout, LCD or sleep}
modes.
1_{Guaranteed by design; not production tested.}
V3P3D SWITCH
PARAMETER
On resistance – V3P3SYS to V3P3D
On resistance – VBAT to V3P3D
CONDITION
| I_V3P3D | ≤ 1 mA
| I_V3P3D | ≤ 1 mA
MIN
TYP
MAX UNIT
10
Ω
40
Ω
2.5 V VOLTAGE REGULATOR
Unless otherwise specified, load = 5 mA
PARAMETER
CONDITION
MIN
TYP MAX UNIT
Voltage overhead V3P3-V2P5
Reduce V3P3 until V2P5
drops 200mV
440
mV
PSSR ∆V2P5/∆V3P3
RESET=0, iload=0
-3
+3
mV/V
LOW POWER VOLTAGE REGULATOR
Unless otherwise specified, V3P3SYS=V3P3A=0, PB=GND (BROWNOUT)
PARAMETER
CONDITION
MIN
TYP
V2P5
ILOAD=0
2.0
2.5
V2P5 load regulation
ILOAD=0 MA to 1 mA1 mA
VBAT voltage requirement
ILOAD=1 MA,
Reduce VBAT until
REG_LP_OK=0
PSRR ΔV2P5/ΔVBAT
ILOAD=0
-50
MAX
2.7
30
3.0
50
UNIT
V
mV
V
mV/V
Page: 92 of 107
Rev 2