
4
HIP2030
Pin Descriptions
PIN
NUMBER
SYMBOL
DESCRIPTION
1
A-
Negative Comparator input for A channel. This input has a Protected Comparator Input that is clamped to P+
and P- through a 330 ohm resistor. The common mode input voltage, for the Protected Comparator Input, rang-
es from (VP-) +2V and (VP0) +2V. The CMOS output AO (Pin 24) is low when input A- is “True” and input A+ is
“False”.
2
A+
Positive Comparator Input for A channel. The CMOS output AO (Pin 24) is high when input A+ is “True” and
input A- is “False”.
3
B1-
Negative Comparator input for B1 channel. The output of the internal B1-channel comparator is low when input
B1- is “True” and input B1+ is “False”.
4
B1+
Positive Comparator Input for B1 channel. The output of the internal B1-channel comparator is high when input
B1+ is “True” and input B1- is “False”.
5
B2-
Negative Comparator Input for B2 channel. The output of the internal B2-channel comparator is low when input
B2- is “True” and input B2+ is “False”.
6
B2+
Positive Comparator Input for B2 channel. The output of the internal B2-channel comparator is high when input
B2+ is “True” and input B2- is “False”.
7
L-
Negative Comparator Input for L (Latch) channel. Latch mode operation is disabled when L- is “True” and L+ is
“False”. NMOS output LO (Pin 26) is active high in a no latch state. The GO output (Pin 23) is controlled by G-
channel inputs.
8
L+
Positive Comparator Input for L (Latch) channel. Latch mode operation is enabled when L+ is “True” and L- is
“False”. NMOS output LO (Pin 26) is active low in latch state. The GO output (Pin 23) goes to a
“P-MCT OFF” state (VGO = VP+) and is controlled by the internal L-channel latch; which bypasses the G-chan-
nel inputs. Latch mode always overrides the R-channel.
9
R-
Negative Comparator Input for R (Reset) channel. Reset mode, for the internal L-channel latch, is disabled when
R- is “True” and R+ is “False”.
10
R+
Positive Comparator Input for R (Reset) channel. Reset mode, for the internal L-channel latch, is enabled when
R+ is “True” and R- is “False”. Reset mode (enabled) unlatches the internal L-channel latch; which allows the
G-channel inputs to control the GO output (Pin 23). Latch mode must be disabled to operate in reset mode.
11
G-
Negative Comparator Input for G (Main) channel. The G-channel output (Pin 23) goes to a “P-MCT OFF” state
(VGO = VP+) when G- is “True” and G+ is “False”.
12
G+
Positive Comparator Input for G (Main) channel. The G-channel output (Pin 23) goes to a “P-MCT ON” state
(VGO = VP-) when G+ is “True” and G- is “False”.
13
MLT
Input for programmable Minimum Low Time timing capacitor (C
T
). MLT is set by connecting a capacitor between
P0 (Pin 22) and MLT (Pin 13). MLT is approximated by the equation: (C
T
)(5V)/(100uA).
14
MHT
Input for programmable Minimum High Time timing capacitor (C
T
). MHT is set by connecting a capacitor be-
tween P0 (Pin 22) and MHT (Pin 14). MHT is approximated by the equation: (C
T
)(5V)/(100
μ
A). MHT becomes
Minimum Low Time function for turning on N-MCT’s.
15
REG
5V regulator output. An opto-coupler or fiber-optic receiver may be power by connecting the positive voltage pin
of the IC to P0 (Pin 22) and the IC common to REG (Pin 15). The internal regulator (REG) must sink 2mA of
current minimum for the MLT and MHT functions to work properly.
16
P-
Chip negative supply. This pin is generally used as the DC bias power supply common. The regulator transistor,
charge pump and logic are referenced to P- (Pin 16).
17
CPB
Output of the Charge Pump Oscillator Inverter stage. A 0.47
μ
F capacitor is normally connected from this output
to CPA (Pin 19).
18
NC
Unused pin.
19
CPA
Inputofthechargepumpsteeringdiode.A0.47
μ
FcapacitorisnormallyconnectedfromthisinputtoCPB(Pin18).