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TPS65520 Datasheet(PDF) 3 Page - Texas Instruments

Part No. TPS65520
Description  POWER MANAGEMENT IC FOR DIGITAL STILL CAMERA
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Maker  TI [Texas Instruments]
Homepage  http://www.ti.com
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RECOMMENDED OPERATING CONDITIONS
ELECTRICAL CHARACTERISTICS
TPS65520
SLVS557A – MARCH 2005 – REVISED MARCH 2005
over operating free-air temperature range (unless otherwise noted)
MIN
NOM MAX
UNIT
VCC_GD
4.5
5.5
VCC(1)
Supply voltage
V
VCC1, VCC2, VCC5, VCC7, VCC8
1.5
5.5
TLD,VCH2,VCH7
0.0
5.5
MODE7, DIN, CLK, LD, PWR_ON, LDO4_ON,
0.0
3.3
TEST
VI
Input voltage
V
VCH5
–9.5
0.0
ROMWR
0.0
0.3
VIH1(2)
High-level input voltage
ILDO1 = 0 mA
2.4
2.9
V
VIL1(2)
Low-level logic input voltage
ILDO1 = 0 mA
0
0.5
V
100
VIH2
TLD high-level logic input voltage
80%
%
Ratio to VCC1A voltage
VIL2
TLD low- level logic input voltage
0%
20%
Voltage difference between two of any GND pins (name starts with GND)
–0.3
0.3
V
TA
Operating free-air temperature,
–20
85
°C
Acceptable number of EEPROM writing(3)
20
Times
(1)
These values are defined in stable state. During the start-up, supply voltage sources are OK to be lower than these values.
(2)
Logic input pins are PWR_ON, USB ON, DIN, CLK, LD, TEST, and MODE7, except TLD.
(3)
This defines the number of customer’s writing after TI’s shipment.
T
A = 25°C, VCC1 = 3.6 V, VCC2 = 3.6 V, VCC5 = 4.9 V, VCC7 = 4.9 V, VCC8 = 3.6 V, VCH8 = 3.6 V, VCH3 = 4.9 V,
VCH_GD = 4.9 V, LDO4_ON = L, and all register bits are default value (unless otherwise noted) .
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
SUPPLY CURRENT
ICC1
ICC CTRL
Supply current for controller
2.2
mA
PWR_ON = H, No load current at all outputs (see
Table 1)
IVCC GD
Supply current for gate-drive
5
mA
ICC2A
IVCH8
Supply current for LDO,control
40
µA
PWR_ON = L (see Table 2)
IVCC8
Supply current for CH-8
1
µA
SUB-CPU CONTROL
VRDY1
READY threshold, rising edge
3.322
3.4
3.478
Sweep VCH8
V
VRDY2
READY threshold, falling edge
3.234
3.3
3.366
VRST1
XRESET threshold, rising edge
2.115
2.184
2.253
Sweep VLDO2
V
VRST2
XRESET threshold, falling edge
1.844
1.884
1.924
IREADY
Sink current of READY
VREADY = 0.5 V
250
500
µA
Ilkg
Leakage current of READY
VREADY = 5.25 V, VCH8 = 5.25 V
0.1
µA
IRST
Sink current of XRESET
VXRESET = 0.5 V, VLDO2 = 2 V
150
300
µA
IRSTL
Leakage current of XRESET
VXRESET = 5.25 V, VCH8 = 5.25 V
0.1
µA
REFERENCE AND PROTECTION
VREF
BG reference voltage, sensed at CBG
IREF = 0 mA
0.842
0.85
0.858
V
Load regulation of BG reference voltage
∆VloBG
IREF = 0.1 µA ~ 1 mA
–5
5
mV
buffer
fosc
Oscillator frequency
ROSC = 150 k
475
500
525
kHz
TSD(1)
Temperature threshold to shutdown
140
155
170
°C
(1)
Not production tested. Assured by design.
3



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