SC1406 Datasheet, PDF (5/11 Pages) Semtech Corporation – PORTABLE PENTIUM II & III POWER SUPPLY CONTROLLER

PORTABLE PENTIUM^® II & III
POWER SUPPLY CONTROLLER
SC1406
PRELIMINARY - August 27, 1999
ELECTRICAL CHARACTERISTICS (CONT.)
Unless specified: -0 < T_A < 100°C; V_CC = 3.3V (See test circuit)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
Current Limit Comparator (CL, CLREF, CLSET)
Input Bias Current
Current Limit Setting Current
+ I_CL
|+ I_CLREF|
*The Tamky device is required to
meet the CL setting current
requirements for R_CLSET of
“17kΩ and 170kΩ or “42.5kΩ and
20kΩ”. Supplier production testing
will use the 17kΩ /170kΩ
combination or the 42.5kΩ /20kΩ
combination.
V_CS = 1.3V
5
µA
R_CLSET = open
V_CLREF-V_CL
= 10mV
7.5
µA
V_CLRER-V_CL
5.0
= -10mV
R_CLSET = 17kΩ∗
V_CLREF-V_CL 262.5 300 337.5 µA
= 10mV
V_CLREF-V_CL 175 200 225
= -10mV
R_CLSET = 170kΩ∗
V_CLREF-V_CL 19.5 30 40.5 µA
= 10mV
V_CLREF-V_CL 13
20
27
= -10mV
R_CLSET = 42.5kΩ∗
V_CLRER-V_CL 100.5 120 139.5 µA
= 10mV
V_CLRER-V_CL 67
80
93
= -10mV
R_CLSET = 20kΩ∗
V_CLREF-V_CL 222 255 288 µA
= 10mV
V_CLRER-V_CL 148 170 192
= -10mV
Input Offset Voltage
Propagation Delay Time**
Measured at the device pins, from
the trip point to 50% of CO
transition
V_{CL -}
V_CLREF
T_{pd_CL-CO}
V_CLREF = 1.3V
V_CMPREF = 1.3V, ∆ V_CMP = +50mV
step with +20mV overdrive,
T_A = 25°C,
T_A = full range
V_CMPREF = 1.3V, ∆ V_CMP =
-50mV step with -20mV overdrive,
T_A = 25°C,
±4 ±6 mV
100
150 ns
100
T_A = full range
150
© 1999 SEMTECH CORP.
Pentium is a registered trademark of Intel Corporation
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