STEVAL-ISA059V1 STMicroelectronics, STEVAL-ISA059V1 Datasheet - Page 3

• Manufacturer Part Number: STEVAL-ISA059V1
• Description: DEMO BOARD BASED ON TSM108
• Manufacturer: STMicroelectronics
• Type: DC/DC Switching Converters, Regulators & Controllersr

Specifications of STEVAL-ISA059V1

• Main Purpose: DC/DC, Step Down
• Outputs And Type: 1, Non-Isolated
• Voltage - Output: 6V
• Current - Output: 800mA
• Voltage - Input: 12V
• Regulator Topology: Buck
• Board Type: Fully Populated
• Utilized Ic / Part: TSM108
• Input Voltage: 12 V
• Output Voltage: 6 V
• Product: Power Management Modules
• Silicon Manufacturer: ST Micro
• Silicon Core Number: TSM108
• Kit Application Type: Power Management - Voltage Regulator
• Application Sub Type: DC/DC Converter
• Kit Contents: Board
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -
• Frequency - Switching: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• For Use With/related Products: TSM108
• Other names: 497-8716

ELECTRICAL CHARACTERISTICS
T
1. V
2. Control Gain : A
3. V
4. Control Gain : A
5. A current foldback function is implemented thanks to a systematic -6mV negative offset on the current amplifier inputs which
6. The Gate Drive output stage has been optimized for PMosfets with input capacitance equal to Cload. A bigger Mosfet (with input
7. The given limits comprise the hysteresis (UV
8. It is possible to modify the UVLO and OVLO limits by adding a resistor (to ground or to V
CURRENT CONSUMPTION
STANDBY
OSCILLATOR
VOLTAGE CONTROL
CURRENT CONTROL
GATE DRIVE - P CHANNEL MOSFET DRIVE
PWM
UVLO
OVLO
Symbol
amb
UV
OV
V
I
I
protects the battery from over charging current under low battery voltage conditiions, or output short circuit conditions.
capacitance higher than Cload) can be used with TSM108, but the gate drive performances will be reduced (in particular when
reaching the Dmax. PWM mode).
The internal values of the resistor should be taken into account.
I
F
C
∆
so
so
source
I
R
R
R
R
V
I
OV
V
UV
I
V
sense
ref
sense
stby
sink
OSC
max.
CC
load
, I
, I
= 25°C, V
ref
uvl
uvl
ovl
ovl
sh
sl
hyst
hyst
parameter indicates global precision of the voltage control loop.
si
si
= 150µA ; Recommended values for the compensation network are : 22nF & 22kΩ in series between output and ground.
= 150µA ; Recommended values for the compensation network are : 22nF & 22kΩ in series between output and ground.
parameter indicated global precision of the current control loop.
Current Consumption
Current Consumption in Standby Mode
Input Standby Voltage High Impedance
Input Standby Voltage Low
Frequency of the Oscilator
Voltage Control Reference
Current Control Reference Voltage
Sink Current - Switch ON
Source Current - Swith OFF
Input Capacitance of the PMOSFET
Maximum Duty Cycle of the PWM function
Under Voltage Lock Out
UVLO Voltage Hysteresis - low to high
Upper Resistor of UVLO bridge
Lower Resistor of UVLO bridge (see note 8)
Over Voltage Lock Out (see note 7)
OVLO Voltage Hysteresis - low to high
Upper Resistor of OVLO bridge (see note 8)
Lower Resistor of OVLO bridge (see note 8)
CC
v
v
= 95dB ; Input Resistance : R
= 105dB ; Input Resistance : R
+ 12V (unless otherwise specified)
1) 2)
3) 4) 5)
Parameter
7)
hyst
in
8)
).
in
= infinite ; Output Resistance : R
=380kΩ ; Output Resistance : R
6)
Internal Pull up resistor.
Stby pin should be left
open
C
T
-25°C < T
T
-25°C < T
T
-25°C < T
T
-25°C < T
-25°C < T
T
T
-25°C < T
T
T
amb
amb
amb
amb
amb
amb
amb
amb
OSC
Test Condition
= 25°C
= 25°C
= 25°C
= 25°C
= 25°C
= 25°C
= 25°C
= 25°C
= 220pF
amb
amb
amb
amb
amb
amb
< 85°C
< 85°C
< 85°C
< 85°C
< 85°C
< 85°C
out
out
= 700MΩ ; Output Source/Sink Current :
= 105MΩ ; Output Source/Sink Current :
CC
) on the pins UV and OV.
2.450
Min.
196
191
70
15
30
32
2
8
2.520
Typ.
76.5
23.2
150
100
206
200
184
400
275
40
80
95
4
1
2.590
Max.
130
216
221
100
0.8
1.5
35
7
9
TSM108
Unit
kHz
mA
mV
mA
mA
mV
mV
µA
nF
kΩ
kΩ
kΩ
kΩ
%
V
V
V
V
V
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