LT1089_15 Datasheet, PDF (1/8 Pages) Linear Technology – High Side Switch

OBSOLETE PRODUCT
DATA SHEET FOR REFERENCE ONLY
Consult www.linear.com for possible alternate source.
FEATURES
s _{7.5A Switch Capability}
s _{Low Series Drop (< 1.5V at 7.5A)}
s _{Logic Input (Positive or Negative Logic)}
s _{Current Limited}
s _{Thermal Overload}
s _{5mA Quiescent Current}
s _{10µs Risetime}
LT1089
High Side Switch
DESCRIPTIO
The LT^®1089 is a logic driven, high current, high side
switch utilizing bipolar technology. The device is capable
of driving loads up to 7.5A with a low series drop of only
1.5V, and the series drop is specified over the full range of
switch currents. The device has internal current limiting
and thermal overload protection. The input logic is
designed so that the output can drive loads referenced
either above or below the device ground pin. Either
positive or negative logic can be used to drive the input.
The device is available in both TO-3 metal can and TO-220
plastic packages.
, LTC and LT are registered trademarks of Linear Technology Corporation.
BLOCK DIAGRA
LOGIC IN
V_CC
BIAS,
THERMAL LIMIT,
CURRENT LIMIT,
OUTPUT DRIVE
I_Q ≈ 5mA
V_OUT
LOGIC GND
LT1089 • BD01
LT1089 Switch Voltage
vs Output Current
2
INDICATES GUARANTEED TEST POINT
– 55°C ≤ T_J ≤ 150°C
0°C ≤ T_J ≤ 125°C
1
T_J = 150°C
T_J = 25°C
T_J = – 55°C
0
0 1 2 3 4 5 6 7 8 9 10
SWITCH CURRENT (A)
LT1089 • BD02
1089fa
1