MC34710 Datasheet, PDF (6/18 Pages) Motorola, Inc – Adjustable Dual Output Switching Power Supply

ELECTRICAL CHARACTERISTICS
STATIC ELECTRICAL CHARACTERISTICS
STATIC ELECTRICAL CHARACTERISTICS
Table 3. STATIC ELECTRICAL CHARACTERISTICS
Characteristics noted under conditions 4.75V ≤ V_IO ≤ 5.25V, 13V ≤ V_B+ ≤ 32V, and 0°C ≤ T_J ≤ 105°C, unless otherwise noted.
Typical values noted reflect the approximate parameter mean at T_A = 25°C under nominal conditions, unless otherwise noted.
Characteristic
Symbol
Min
Typ
Max
Unit
SWITCHING REGULATOR (VI/O, MODE0)
Logic Supply Voltage (I_VI/O = 25 to 700mA)
Mode0 = 0
Mode0 = Open (floating)
Output On Resistance
V_B+ = 13 to 32V
Soft Start Threshold Voltage
Mode0 = any
Current Limit Threshold (T_J = 25°C to 100°C)
Normal Operation
Soft Start, V_{I / O} ≤ 2.5V
Minimum Voltage Allowable on V_SWITCH Pin
T_J = 25°C to 100°C
V_{I / O}
V
4.8
5.0
5.2
3.15
3.25
3.45
R_DS(ON)
Ω
0.5
1.0
2.0
V_{I / O}(SOFT)
V
–
2.5
3.1
I_LIMIT (OP)
I_LIMIT (SOFT)
A
1.9
2.4
2.9
1.0
–
1.9
V_VSWITCH (MIN)
-0.5
–
V
–
LINEAR REGULATOR (VCORE, MODE 1, 2, 3, 4)
Supply Voltage (I_VCORE = 5.0mA)⁽¹¹⁾
Mode2=Low, Mode1=Don’t Care, Mode0=Low
Mode2=Low, Mode1=Don’t Care, Mode0=Open
Mode2=Open, Mode1=Don’t Care, Mode0=Low
Mode2=Open, Mode1=Don’t Care, Mode0=Open
Supply Voltage (I_VCORE = 500mA)⁽¹¹⁾
Mode2=Low, Mode1=Don’t Care, Mode0=Low
Mode2=Low, Mode1=Don’t Care, Mode0=Open
Mode2=Open, Mode1=Don’t Care, Mode0=Low
Mode2=Open, Mode1=Don’t Care, Mode0=Open
V_CORE Dropout Voltage
V_CORE = V_CORE (NOM), I_VCORE = 0.5A
Normal Current Limit Threshold
T_J = 25°C to 100°C, V_LINB+ = V_CORE(NOM) + 1.0V
V_CORE (NOM)
V
3.15
3.3
3.45
2.45
2.5
2.75
1.7
1.8
2.05
1.425
1.5
1.575
V_CORE (NOM)
V
3.0
–
3.4
2.2
–
2.6
1.55
–
1.9
1.33
–
1.53
I_VCORE(DROPOUT)
–
V
0.5
0.8
I_LIMIT
mA
600
800
1000
Notes
11. Refer to Table 5, page 9.
34710
6
Analog Integrated Circuit Device Data
Freescale Semiconductor