M51945A,B/M51946A,B
Absolute Maximum Ratings
Item
Supply voltage
Output sink current
Output voltage
Power dissipation
Thermal derating
Symbol
VCC
Isink
VO
Pd
Kθ
Ratings
18
6
VCC
18
450
400
300
4.5
4.4
3
Operating temperature
Storage temperature
Input voltage range
Topr
Tstg
VIN
–30 to +85
–40 to +125
–0.3 to VCC
–0.3 to +7
Unit
V
mA
V
mW
mW/°C
°C
°C
V
(Ta = 25°C, unless otherwise noted)
Conditions
Type A (output with constant current load)
Type B (open collector output)
5-pin SIP
8-pin SOP (PRSP0008DE-C): recommend
8-pin SOP (PRSP0008DA-A): not recommend
Refer to the
5-pin SIP
thermal derating 8-pin SOP (PRSP0008DE-C)
curve.
: recommend
8-pin SOP (PRSP0008DA-A)
: not recommend
VCC ≤ 7 V
VCC > 7 V
Electrical Characteristics
• “L” reset type M51945A, M51945B
• “H” reset type M51946A, M51946B
Item
Symbol Min
Detecting voltage
VS
1.20
Hysteresis voltage
∆VS
9
Detecting voltage
VS/∆T
—
temperature coefficient
Supply voltage range VCC
2
Input current
IIN
—
Circuit current
ICC
—
—
Output saturation
Vsat
—
voltage
—
Threshold operating
VOPL
—
voltage
—
Output leakage
IOH
—
current
Output load current
IOC
–40
Output high voltage
VOH
VCC–0.2
Propagation delay time tPHL
—
tPLH
—
Typ
1.25
15
0.01
—
100
310
280
0.2
0.2
0.67
0.55
—
–25
VCC–0.06
4
2
Max
1.30
23
—
17
500
470
420
0.4
0.4
0.8
0.7
1
–17
—
—
—
Unit
V
mV
%/°C
V
nA
µA
V
V
µA
µA
V
µs
(Ta = 25°C, unless otherwise noted)
Test Conditions
VIN = 1.25V
Type A, VCC = 5V
Type B, VCC = 5V
L reset type, VCC = 5V, VIN < 1.2V, Isink = 4mA
H reset type, VCC = 5V, VIN > 1.35V, Isink = 4mA
L reset type minimum supply RL = 2.2kΩ, Vsat ≤ 0.4V
voltage for IC operation
RL = 100kΩ, Vsat ≤ 0.4V
Type B
Type A, VCC = 5V, VO = 1/2 × VCC
Type A
Response time when VCC changes H → L
Response time when VCC changes L → H
REJ03D0774-0200 Rev.2.00 Aug 20, 2007
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