Datasheet

PGA308
SBOS440B JULY 2008REVISED DECEMBER 2010
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ELECTRICAL CHARACTERISTICS (continued)
Boldface limits apply over the specified temperature range, T
A
= –40°C to +125°C.
At T
A
= +25°C, V
S
= +5V, GND = 0V, D
OUT
/V
CLAMP
= +5V, and V
REF
= +5V, unless otherwise noted.
PGA308
PARAMETER CONDITIONS MIN TYP MAX UNIT
V
REF
Input Range 1.8 V
S
V
Input Resistance 43 k
Digital Interface
One-Wire Serial speed baud rate 4.8k 114k bits/s
Logic Levels
Logic Levels (1W pin) Low 0.8 V
High 2.0 V
Hysteresis 100 mV
Output Low Level (1W pin) Open drain, I
SINK
= 4mA 0.4 V
Output Levels (D
OUT
/V
CLAMP
) Low, D
OUT
mode selected, I
SINK
= 4mA and V
S
= +4.5V, or 0.4 V
I
SINK
= 2mA and V
S
= +2.7V
High, D
OUT
mode selected, I
SOURCE
= 4mA and V
S
= +4.5V, V
S
– 0.4 V
or
I
SOURCE
= 2mA and V
S
= +2.7V
POWER SUPPLY
Supply Voltage V
S
2.7 5.5 V
OTP Program Voltage V
S-PGM
4.5 5.5 V
Quiescent Current I
Q
V
S
= +5V, does not include I
REF
1.3 1.6 mA
Shutdown Supply Current I
SHDN
V
S
= +5V, does not include I
REF
(8)
260 mA
POWER-ON RESET (POR)
Power-Up Threshold V
S
rising 2.1 V
Power-Down Threshold V
S
falling 1.7 V
TEMPERATURE RANGE
Specified Performance Range –40 +125 °C
Operational-Degraded Performance Range –40 +150 °C
Thermal Resistance
MSOP-10, Junction-to-Ambient q
JA
150 °C/W
(8) I
REF
current load is typically 100mA while in Shutdown mode. Although the output amplifier is disabled in Shutdown mode, RFO and
RGO (180k typical total) remain connected in series between V
FB
and GND while in Shutdown mode. See Figure 37, Detailed Block
Diagram, for more information.
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