Datasheet
1
2
3
4
8
7
6
5
NC
R
SP
R
SN
V
CC
GND
V
OUT
V
REFA
V
REFB
LMP
8481
LMP8480, LMP8481
SNVS829A –JUNE 2012–REVISED AUGUST 2012
www.ti.com
LMP8481 8-Pad LLP
Figure 6. Top View
Table 1. Pin Descriptions
Pin Name Description
1 R
SP
Positive current sense input
2 V
CC
Positive supply voltage
3 NC No Connection – Not internally Connected.
4 GND Ground
5 V
OUT
Output
6 NC or R
EFA
LMP8480: No Connection LMP8481: Reference Voltage “B” Input
7 NC or R
EFB
LMP8480: No Connection LMP8481: Reference Voltage “A” Input
8 R
SN
Negative current sense input
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
Absolute Maximum Ratings
(1)
Over operating free-air temperature range (unless otherwise noted).
LMP8480, LMP8481 UNIT
Supply Voltage (V
CC
to GND) -0.3 to +85 V
R
SP
or R
SN
to GND -0.3 to +85 V
V
OUT
to GND -0.3 to the lesser of (V
CC
+ 0.3) or +20 V
Other V
REF
pin tied to ground -0.3 to +12 V
V
REF
Pins
(LMP8481 Only)
Applied to both V
REF
Pins tied together -0.3 to +6 V
Differential Input Voltage ±85 V
Current into output pin ±20
(2)
mA
Current into any other pins ±5
(2)
mA
Operating Temperature –40 to +125 °C
Storage Temperature -65° to +150 °C
Junction Temperature +150 °C
MSOP-8 185 °C/W
Package Thermal
Resistance (θ
JA
)
LLP-8 70 °C/W
Human Body Model (HBM) 2000 V
ESD Ratings
Charged Device Model (CDM) 750 V
(1) Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for
which the device is intended to be functional, but specific performance is not guaranteed. For guaranteed specifications and the test
conditions, see the Electrical Characteristics Tables.
(2) When the input voltage (VIN) at any pin exceeds power supplies (VIN < GND or VIN > VS ), the current at that pin must not exceed
5mA, and the voltage (VIN) has to be within the Absolute Maximum Rating for that pin. The 20mA package input current rating limits the
number of pins that can safely exceed the power supplies with current flow to four pins.
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